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@ -34,9 +34,6 @@ class AzureAsrHelper(private val context: Context) { |
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private val tag = "AzureAsrHelper" |
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private val tag = "AzureAsrHelper" |
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// 核心组件 |
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// 核心组件 |
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private var echoCanceler: AcousticEchoCanceler? = null |
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private var noiseSuppressor: NoiseSuppressor? = null |
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private var automaticGainControl: AutomaticGainControl? = null |
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private var speechConfig: SpeechConfig? = null |
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private var speechConfig: SpeechConfig? = null |
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private var recognizer: SpeechRecognizer? = null |
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private var recognizer: SpeechRecognizer? = null |
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private var audioConfig: AudioConfig? = null |
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private var audioConfig: AudioConfig? = null |
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@ -55,7 +52,7 @@ class AzureAsrHelper(private val context: Context) { |
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var audioSourceType = AudioSourceType.MICROPHONE |
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var audioSourceType = AudioSourceType.MICROPHONE |
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// 音频处理 |
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// 音频处理 |
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// private var microphoneStream: MicrophoneStream? = null |
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private var audioStream: AudioStream? = null |
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private var externalAudioStream: ExternalAudioPullStream? = null |
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private var externalAudioStream: ExternalAudioPullStream? = null |
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// 音频模式管理 |
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// 音频模式管理 |
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@ -64,11 +61,7 @@ class AzureAsrHelper(private val context: Context) { |
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// 录音文件处理 |
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// 录音文件处理 |
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var recordfile: RecordFile? = null |
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var recordfile: RecordFile? = null |
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var isPaused = true |
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private var isPaused = false |
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private var audioRecord: AudioRecord? = null |
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private var captureThread: Thread? = null |
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private var audioStream: PushAudioInputStream? = null |
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/** |
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/** |
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* 音频来源类型 |
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* 音频来源类型 |
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@ -129,9 +122,7 @@ class AzureAsrHelper(private val context: Context) { |
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// 释放之前的资源 |
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// 释放之前的资源 |
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dispose() |
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dispose() |
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// 1. 创建可控制的音频流 |
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val format = getOptimalAudioFormat() |
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audioStream = AudioInputStream.createPushStream(format) |
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// 初始化音频管理器 |
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// 初始化音频管理器 |
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audioManager = context.getSystemService(Context.AUDIO_SERVICE) as AudioManager |
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audioManager = context.getSystemService(Context.AUDIO_SERVICE) as AudioManager |
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originalAudioMode = audioManager?.mode ?: AudioManager.MODE_NORMAL |
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originalAudioMode = audioManager?.mode ?: AudioManager.MODE_NORMAL |
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@ -197,6 +188,7 @@ class AzureAsrHelper(private val context: Context) { |
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*/ |
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*/ |
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private fun setupRecognizer(): Boolean { |
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private fun setupRecognizer(): Boolean { |
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try { |
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try { |
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// 清理旧的识别器 |
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// 清理旧的识别器 |
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recognizer?.close() |
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recognizer?.close() |
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recognizer = null |
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recognizer = null |
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@ -211,7 +203,11 @@ class AzureAsrHelper(private val context: Context) { |
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AudioSourceType.EXTERNAL -> { |
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AudioSourceType.EXTERNAL -> { |
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// 改用拉流方式处理外部音频 |
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// 改用拉流方式处理外部音频 |
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Log.d(tag, "改用拉流方式处理外部音频") |
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setupExternalAudioStream() |
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setupExternalAudioStream() |
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} |
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} |
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} |
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} |
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@ -237,13 +233,25 @@ class AzureAsrHelper(private val context: Context) { |
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*/ |
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*/ |
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private fun setupMicrophoneStream() { |
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private fun setupMicrophoneStream() { |
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try { |
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try { |
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Log.d(tag, "设置麦克风流 - 使用拉流方式: }") |
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restoreOriginalAudioState() |
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if (audioStream == null) { |
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// 创建外部音频拉流对象 |
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audioStream = AudioStream() |
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audioStream!!.initAudioRecord() |
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} |
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// else |
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// { |
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// audioStream.stopCaptureThread() |
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// audioStream.startCaptureThread() |
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// } |
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// 创建麦克风流 |
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// 创建麦克风流 |
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// microphoneStream = MicrophoneStream() |
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// microphoneStream = MicrophoneStream() |
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// 创建音频配置 - 正确使用fromStreamInput方法，只传入回调 |
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// 创建音频配置 - 正确使用fromStreamInput方法，只传入回调 |
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// audioConfig = AudioConfig.fromStreamInput(microphoneStream) |
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// audioConfig = AudioConfig.fromStreamInput(microphoneStream) |
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audioConfig = AudioConfig.fromStreamInput(audioStream) |
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audioConfig = AudioConfig.fromStreamInput(audioStream!!.pushAudioStream) |
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} catch (e: Exception) { |
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} catch (e: Exception) { |
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Log.e(tag, "设置麦克风流失败: ${e.message}") |
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Log.e(tag, "设置麦克风流失败: ${e.message}") |
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@ -278,6 +286,8 @@ class AzureAsrHelper(private val context: Context) { |
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*/ |
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*/ |
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private fun setupExternalAudioStream() { |
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private fun setupExternalAudioStream() { |
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try { |
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try { |
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Log.d(tag, "设置外部音频流 - 使用拉流方式: }") |
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//disableBluetoothAudio() |
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// 创建外部音频拉流对象 |
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// 创建外部音频拉流对象 |
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externalAudioStream = ExternalAudioPullStream() |
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externalAudioStream = ExternalAudioPullStream() |
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@ -299,7 +309,6 @@ class AzureAsrHelper(private val context: Context) { |
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if (audioSourceType != AudioSourceType.EXTERNAL) { |
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if (audioSourceType != AudioSourceType.EXTERNAL) { |
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return |
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return |
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} |
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} |
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// 使用拉流模式，将数据推入队列 |
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// 使用拉流模式，将数据推入队列 |
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externalAudioStream?.pushAudio(data) |
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externalAudioStream?.pushAudio(data) |
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@ -379,8 +388,7 @@ class AzureAsrHelper(private val context: Context) { |
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} |
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} |
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try { |
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try { |
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// 5. 初始化麦克风 |
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initAudioRecord() |
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// 设置各种事件监听 |
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// 设置各种事件监听 |
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setupEventListeners(callback) |
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setupEventListeners(callback) |
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@ -389,9 +397,7 @@ class AzureAsrHelper(private val context: Context) { |
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// 开始连续识别 |
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// 开始连续识别 |
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recognizer?.startContinuousRecognitionAsync() |
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recognizer?.startContinuousRecognitionAsync() |
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// 开始录音 |
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audioStream?.startCaptureThread() |
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audioRecord?.startRecording() |
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startCaptureThread() // 再启动数据读取线程 |
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isContinuousRecognitionActive = true |
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isContinuousRecognitionActive = true |
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@ -442,6 +448,7 @@ class AzureAsrHelper(private val context: Context) { |
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recognizer?.sessionStarted?.addEventListener( |
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recognizer?.sessionStarted?.addEventListener( |
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EventHandler<SessionEventArgs> { _, _ -> |
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EventHandler<SessionEventArgs> { _, _ -> |
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// 直接在当前线程调用回调 |
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// 直接在当前线程调用回调 |
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Log.d(tag, "会话开始事件") |
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callback.onSessionStarted() |
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callback.onSessionStarted() |
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} |
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} |
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) |
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) |
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@ -450,6 +457,7 @@ class AzureAsrHelper(private val context: Context) { |
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recognizer?.sessionStopped?.addEventListener( |
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recognizer?.sessionStopped?.addEventListener( |
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EventHandler<SessionEventArgs> { _, _ -> |
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EventHandler<SessionEventArgs> { _, _ -> |
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// 直接在当前线程调用回调 |
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// 直接在当前线程调用回调 |
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Log.d(tag, "会话结束事件") |
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callback.onSessionStopped() |
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callback.onSessionStopped() |
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isContinuousRecognitionActive = false |
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isContinuousRecognitionActive = false |
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stopAudioProcessing() |
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stopAudioProcessing() |
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@ -497,8 +505,6 @@ class AzureAsrHelper(private val context: Context) { |
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// 停止音频处理 |
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// 停止音频处理 |
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stopAudioProcessing() |
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stopAudioProcessing() |
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// 停止录音 |
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stopMicrophoneCapture() |
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// 会话结束事件会设置isContinuousRecognitionActive = false |
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// 会话结束事件会设置isContinuousRecognitionActive = false |
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return true |
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return true |
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} catch (e: Exception) { |
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} catch (e: Exception) { |
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@ -508,8 +514,6 @@ class AzureAsrHelper(private val context: Context) { |
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// 停止音频处理 |
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// 停止音频处理 |
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stopAudioProcessing() |
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stopAudioProcessing() |
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// 停止录音 |
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stopMicrophoneCapture() |
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// 尝试强制关闭识别器 |
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// 尝试强制关闭识别器 |
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try { |
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try { |
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recognizer?.close() |
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recognizer?.close() |
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@ -538,7 +542,6 @@ class AzureAsrHelper(private val context: Context) { |
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recognizer?.stopContinuousRecognitionAsync() |
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recognizer?.stopContinuousRecognitionAsync() |
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isContinuousRecognitionActive = false |
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isContinuousRecognitionActive = false |
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} |
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} |
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releaseAudioResources() |
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// 停止音频处理 |
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// 停止音频处理 |
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stopAudioProcessing() |
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stopAudioProcessing() |
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@ -552,9 +555,6 @@ class AzureAsrHelper(private val context: Context) { |
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speechConfig?.close() |
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speechConfig?.close() |
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speechConfig = null |
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speechConfig = null |
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// 关闭音频流（根据实际实现可能需要） |
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audioStream?.close() |
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audioStream = null |
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// 释放音频配置 |
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// 释放音频配置 |
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audioConfig?.close() |
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audioConfig?.close() |
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@ -601,16 +601,19 @@ class AzureAsrHelper(private val context: Context) { |
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* 停止音频处理 |
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* 停止音频处理 |
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*/ |
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*/ |
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private fun stopAudioProcessing() { |
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private fun stopAudioProcessing() { |
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// microphoneStream?.let { |
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audioStream?.let { |
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// try { |
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try { |
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// it.close() |
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it.stopMicrophoneCapture() |
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// microphoneStream = null |
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it.releaseAudioResources() |
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// } catch (e: Exception) { |
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// Log.e(tag, "关闭麦克风流失败: ${e.message}") |
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it.pushAudioStream?.close() |
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// e.printStackTrace() |
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// } |
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// } |
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audioStream = null |
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} catch (e: Exception) { |
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Log.e(tag, "关闭麦克风流失败: ${e.message}") |
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e.printStackTrace() |
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} |
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} // 关闭音频流（根据实际实现可能需要） |
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externalAudioStream?.let { |
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externalAudioStream?.let { |
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try { |
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try { |
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it.close() |
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it.close() |
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@ -622,70 +625,22 @@ class AzureAsrHelper(private val context: Context) { |
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} |
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} |
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} |
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} |
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/** |
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* 开启录音 |
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*/ |
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fun enableRecord(filePath: String) { |
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Log.i(tag, "开启录音:") |
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recordfile!!.closeFile(true) |
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recordfile!!.creatingFiles(filePath) |
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} |
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/** |
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* 移动文件到新路径 |
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*/ |
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fun moveFile(sourcePath: String, destPath: String): Boolean { |
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Log.i(tag, "移动文件到新路径:") |
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recordfile!!.moveFile(sourcePath, destPath) |
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return true |
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} |
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/** |
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* 重命名指定路径的音频文件 |
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*/ |
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fun renameFile(filePath: String, newName: String): Boolean { |
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Log.i(tag, "重命名指定路径的音频文件:") |
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recordfile!!.renameFile(filePath, newName) |
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return true |
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} |
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/** |
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* 停止录音 |
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*/ |
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fun pauseRecord() { |
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Log.i(tag, "停止连续录音:") |
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recordfile!!.isPause = true |
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} |
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/** |
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/* |
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* 关闭录音 |
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暂停音频输入 |
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*/ |
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*/ |
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fun stopRecord(isSave: Boolean) { |
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fun audioPause() { |
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Log.i(tag, "关闭录音:") |
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recordfile!!.isPause = false |
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recordfile!!.closeFile(isSave) |
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} |
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fun stopAudioPause() { |
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Log.d(tag, "关闭麦克风stopAudioPause: ") |
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Log.d(tag, "关闭麦克风stopAudioPause: ") |
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// 清理旧的识别器 |
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// 清理旧的识别器 |
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isPaused = true |
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isPaused = true |
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} |
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} |
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fun setAudiocontinue() { |
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/* |
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继续音频输入 |
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*/ |
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fun audioContinue() { |
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Log.d(tag, "继续麦克风stopAudioPause: ") |
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Log.d(tag, "继续麦克风stopAudioPause: ") |
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// 开始连续识别 |
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// 开始连续识别 |
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@ -727,403 +682,251 @@ class AzureAsrHelper(private val context: Context) { |
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} |
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} |
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} |
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} |
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//录音音频文件 |
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/** |
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/** |
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* 开始麦克风捕获 |
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* 开启录音 |
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*/ |
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*/ |
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private fun initAudioRecord() { |
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fun enableRecord(filePath: String) { |
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// 获取已确定的采样率 |
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Log.i(tag, "开启录音:") |
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val format = getOptimalAudioFormat() |
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|
|
|
val supportedSampleRates = intArrayOf(16000, 8000, 11025, 22050, 44100) |
|
|
|
|
|
val channelConfig = AudioFormat.CHANNEL_IN_MONO // 单声道输入 |
|
|
|
|
|
val audioFormat = AudioFormat.ENCODING_PCM_16BIT // 16位PCM格式 |
|
|
|
|
|
// 查找设备支持的最佳采样率 |
|
|
|
|
|
val sampleRate = supportedSampleRates.firstOrNull { rate -> |
|
|
|
|
|
val bufferSize = AudioRecord.getMinBufferSize( |
|
|
|
|
|
rate, |
|
|
|
|
|
channelConfig, |
|
|
|
|
|
audioFormat |
|
|
|
|
|
) |
|
|
|
|
|
bufferSize > 0 // 返回正值表示支持 |
|
|
|
|
|
} ?: 16000 // 默认回退值 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
// 计算最小缓冲区大小（避免出现音频欠载） |
|
|
|
|
|
val minBufferSize = AudioRecord.getMinBufferSize( |
|
|
|
|
|
sampleRate, |
|
|
|
|
|
channelConfig, |
|
|
|
|
|
audioFormat |
|
|
|
|
|
) |
|
|
|
|
|
// 创建录音对象 |
|
|
|
|
|
if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.M) { |
|
|
|
|
|
Log.d("AzureASR", "android.os.Build.VERSION.SDK_INT") |
|
|
|
|
|
val format = AudioFormat.Builder() |
|
|
|
|
|
.setSampleRate(sampleRate) |
|
|
|
|
|
.setEncoding(audioFormat) |
|
|
|
|
|
.setChannelMask(channelConfig) |
|
|
|
|
|
.build() |
|
|
|
|
|
|
|
|
|
|
|
audioRecord = AudioRecord.Builder() |
|
|
|
|
|
.setAudioSource(MediaRecorder.AudioSource.VOICE_COMMUNICATION) |
|
|
|
|
|
.setAudioFormat(format) |
|
|
|
|
|
.setBufferSizeInBytes(minBufferSize * 2) |
|
|
|
|
|
.build() |
|
|
|
|
|
} else { |
|
|
|
|
|
// 创建 AudioRecord 对象 |
|
|
|
|
|
audioRecord = AudioRecord( |
|
|
|
|
|
MediaRecorder.AudioSource.VOICE_RECOGNITION, // 语音识别专用音源（自带降噪/回声消除） |
|
|
|
|
|
sampleRate, |
|
|
|
|
|
channelConfig, |
|
|
|
|
|
audioFormat, |
|
|
|
|
|
minBufferSize * 2 // 使用两倍缓冲区防止溢出 |
|
|
|
|
|
) |
|
|
|
|
|
|
|
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
recordfile!!.closeFile(true) |
|
|
|
|
|
|
|
|
// 检查初始化状态 |
|
|
|
|
|
if (audioRecord?.state != AudioRecord.STATE_INITIALIZED) { |
|
|
|
|
|
throw IllegalStateException("AudioRecord初始化失败") |
|
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
recordfile!!.creatingFiles(filePath) |
|
|
|
|
|
|
|
|
} |
|
|
} |
|
|
|
|
|
|
|
|
// 3. 单独封装线程启动逻辑 |
|
|
/** |
|
|
private fun startCaptureThread() { |
|
|
* 移动文件到新路径 |
|
|
captureThread = Thread { |
|
|
*/ |
|
|
// 根据实际采样率计算缓冲区大小 |
|
|
fun moveFile(sourcePath: String, destPath: String): Boolean { |
|
|
val supportedSampleRates = intArrayOf(16000, 8000, 11025, 22050, 44100) |
|
|
Log.i(tag, "移动文件到新路径:") |
|
|
var bufferSize = 0 |
|
|
|
|
|
// 查找设备支持的最佳采样率 |
|
|
|
|
|
val sampleRate = supportedSampleRates.firstOrNull { rate -> |
|
|
|
|
|
bufferSize = AudioRecord.getMinBufferSize( |
|
|
|
|
|
rate, |
|
|
|
|
|
AudioFormat.CHANNEL_IN_MONO, |
|
|
|
|
|
AudioFormat.ENCODING_PCM_16BIT |
|
|
|
|
|
) |
|
|
|
|
|
bufferSize > 0 // 返回正值表示支持 |
|
|
|
|
|
} ?: 16000 // 默认回退值 |
|
|
|
|
|
|
|
|
|
|
|
val buffer = ByteArray(bufferSize) |
|
|
recordfile!!.moveFile(sourcePath, destPath) |
|
|
|
|
|
return true |
|
|
|
|
|
} |
|
|
|
|
|
|
|
|
while (!Thread.interrupted() && audioRecord?.recordingState == AudioRecord.RECORDSTATE_RECORDING) { |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/** |
|
|
|
|
|
* 重命名指定路径的音频文件 |
|
|
|
|
|
*/ |
|
|
|
|
|
fun renameFile(filePath: String, newName: String): Boolean { |
|
|
|
|
|
Log.i(tag, "重命名指定路径的音频文件:") |
|
|
|
|
|
|
|
|
if (!isPaused) { |
|
|
|
|
|
// 读取音频 |
|
|
|
|
|
val bytesRead = audioRecord?.read(buffer, 0, buffer.size) ?: 0 |
|
|
|
|
|
if (bytesRead > 0) { |
|
|
|
|
|
// 写入Azure流 |
|
|
|
|
|
audioStream?.write(buffer) |
|
|
|
|
|
|
|
|
|
|
|
// 保存录音 |
|
|
recordfile!!.renameFile(filePath, newName) |
|
|
recordfile?.saveAudioDataToWav(buffer) |
|
|
return true |
|
|
} |
|
|
|
|
|
} |
|
|
|
|
|
} |
|
|
|
|
|
}.apply { start() } |
|
|
|
|
|
} |
|
|
} |
|
|
|
|
|
|
|
|
/** |
|
|
/** |
|
|
* 停止麦克风捕获并释放所有相关资源 |
|
|
* 停止录音 |
|
|
*/ |
|
|
*/ |
|
|
private fun stopMicrophoneCapture() { |
|
|
fun pauseRecord() { |
|
|
try { |
|
|
Log.i(tag, "停止连续录音:") |
|
|
// 中断并等待捕获线程结束 |
|
|
|
|
|
captureThread?.interrupt() |
|
|
|
|
|
captureThread?.join(300) // 最多等待300ms |
|
|
|
|
|
|
|
|
|
|
|
// 停止录音并释放AudioRecord资源 |
|
|
recordfile!!.isPause = true |
|
|
audioRecord?.stop() // 必须先停止再释放 |
|
|
} |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
} catch (e: Exception) { |
|
|
/** |
|
|
Log.e("AudioConfig", "Error releasing resources: ${e.message}") |
|
|
* 关闭录音 |
|
|
} finally { |
|
|
*/ |
|
|
// 确保恢复原始音频状态 |
|
|
fun stopRecord(isSave: Boolean) { |
|
|
restoreOriginalAudioState() |
|
|
Log.i(tag, "关闭录音:") |
|
|
} |
|
|
|
|
|
|
|
|
recordfile!!.isPause = false |
|
|
|
|
|
recordfile!!.closeFile(isSave) |
|
|
} |
|
|
} |
|
|
|
|
|
|
|
|
/** |
|
|
/** |
|
|
* 应用音频效果 - 总是启用所有音频增强功能 |
|
|
* 麦克风流 - 拉流模式 |
|
|
|
|
|
* 实现PullAudioInputStreamCallback，为Azure SDK提供音频数据 |
|
|
*/ |
|
|
*/ |
|
|
private fun applyAudioEffects() { |
|
|
inner class AudioStream { |
|
|
val sessionId = audioRecord?.audioSessionId ?: return |
|
|
|
|
|
|
|
|
|
|
|
try { |
|
|
private var echoCanceler: AcousticEchoCanceler? = null |
|
|
// 设置音频模式为通信模式 |
|
|
private var noiseSuppressor: NoiseSuppressor? = null |
|
|
audioManager?.mode = AudioManager.MODE_IN_COMMUNICATION |
|
|
private var automaticGainControl: AutomaticGainControl? = null |
|
|
|
|
|
|
|
|
// 启用声学回音消除 |
|
|
|
|
|
if (AcousticEchoCanceler.isAvailable()) { |
|
|
|
|
|
echoCanceler = AcousticEchoCanceler.create(sessionId) |
|
|
|
|
|
echoCanceler?.enabled = true |
|
|
|
|
|
Log.i(tag, "声学回音消除已启用") |
|
|
|
|
|
} else { |
|
|
|
|
|
Log.w(tag, "设备不支持声学回音消除") |
|
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
|
|
// 启用噪声抑制 |
|
|
var audioRecord: AudioRecord? = null |
|
|
if (NoiseSuppressor.isAvailable()) { |
|
|
private var captureThread: Thread? = null |
|
|
noiseSuppressor = NoiseSuppressor.create(sessionId) |
|
|
var pushAudioStream: PushAudioInputStream? = null |
|
|
noiseSuppressor?.enabled = true |
|
|
|
|
|
Log.i(tag, "噪声抑制已启用") |
|
|
|
|
|
|
|
|
// 音频配置 |
|
|
|
|
|
|
|
|
|
|
|
private val channelConfig = AudioFormat.CHANNEL_IN_MONO |
|
|
|
|
|
private val audioFormat = AudioFormat.ENCODING_PCM_16BIT |
|
|
|
|
|
|
|
|
|
|
|
/** |
|
|
|
|
|
* 开始麦克风捕获 |
|
|
|
|
|
*/ |
|
|
|
|
|
fun initAudioRecord() { |
|
|
|
|
|
|
|
|
|
|
|
val format = getOptimalAudioFormat() |
|
|
|
|
|
pushAudioStream = AudioInputStream.createPushStream(format) |
|
|
|
|
|
val supportedSampleRates = intArrayOf(16000, 8000, 11025, 22050, 44100) |
|
|
|
|
|
// 查找设备支持的最佳采样率 |
|
|
|
|
|
val sampleRate = supportedSampleRates.firstOrNull { rate -> |
|
|
|
|
|
val bufferSize = AudioRecord.getMinBufferSize( |
|
|
|
|
|
rate, |
|
|
|
|
|
channelConfig, |
|
|
|
|
|
audioFormat |
|
|
|
|
|
) |
|
|
|
|
|
bufferSize > 0 // 返回正值表示支持 |
|
|
|
|
|
} ?: 16000 // 默认回退值 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
// 计算最小缓冲区大小（避免出现音频欠载） |
|
|
|
|
|
val minBufferSize = AudioRecord.getMinBufferSize( |
|
|
|
|
|
sampleRate, |
|
|
|
|
|
channelConfig, |
|
|
|
|
|
audioFormat |
|
|
|
|
|
) |
|
|
|
|
|
// 创建录音对象 |
|
|
|
|
|
if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.M) { |
|
|
|
|
|
Log.d("AzureASR", "android.os.Build.VERSION.SDK_INT") |
|
|
|
|
|
val format = AudioFormat.Builder() |
|
|
|
|
|
.setSampleRate(sampleRate) |
|
|
|
|
|
.setEncoding(audioFormat) |
|
|
|
|
|
.setChannelMask(channelConfig) |
|
|
|
|
|
.build() |
|
|
|
|
|
|
|
|
|
|
|
audioRecord = AudioRecord.Builder() |
|
|
|
|
|
.setAudioSource(MediaRecorder.AudioSource.VOICE_COMMUNICATION) |
|
|
|
|
|
.setAudioFormat(format) |
|
|
|
|
|
.setBufferSizeInBytes(minBufferSize * 2) |
|
|
|
|
|
.build() |
|
|
} else { |
|
|
} else { |
|
|
Log.w(tag, "设备不支持噪声抑制") |
|
|
// 创建 AudioRecord 对象 |
|
|
|
|
|
audioRecord = AudioRecord( |
|
|
|
|
|
MediaRecorder.AudioSource.VOICE_RECOGNITION, // 语音识别专用音源（自带降噪/回声消除） |
|
|
|
|
|
sampleRate, |
|
|
|
|
|
channelConfig, |
|
|
|
|
|
audioFormat, |
|
|
|
|
|
minBufferSize * 2 // 使用两倍缓冲区防止溢出 |
|
|
|
|
|
) |
|
|
|
|
|
|
|
|
} |
|
|
} |
|
|
|
|
|
|
|
|
// 启用自动增益控制 |
|
|
|
|
|
if (AutomaticGainControl.isAvailable()) { |
|
|
// 检查初始化状态 |
|
|
automaticGainControl = AutomaticGainControl.create(sessionId) |
|
|
if (audioRecord?.state != AudioRecord.STATE_INITIALIZED) { |
|
|
automaticGainControl?.enabled = true |
|
|
throw IllegalStateException("AudioRecord初始化失败") |
|
|
Log.i(tag, "自动增益控制已启用") |
|
|
|
|
|
} else { |
|
|
|
|
|
Log.w(tag, "设备不支持自动增益控制") |
|
|
|
|
|
} |
|
|
} |
|
|
|
|
|
|
|
|
Log.i(tag, "回音消除和音频增强功能已全部启用") |
|
|
startCaptureThread() // 再启动数据读取线程 |
|
|
} catch (e: Exception) { |
|
|
|
|
|
Log.e(tag, "设置音频效果失败: ${e.message}") |
|
|
|
|
|
} |
|
|
} |
|
|
} |
|
|
|
|
|
|
|
|
|
|
|
/** |
|
|
// 3. 单独封装线程启动逻辑 |
|
|
* 释放音频资源 |
|
|
fun startCaptureThread() { |
|
|
*/ |
|
|
// 开始录音 |
|
|
private fun releaseAudioResources() { |
|
|
audioRecord?.startRecording() |
|
|
try { |
|
|
captureThread = Thread { |
|
|
// 停止录音 |
|
|
// 根据实际采样率计算缓冲区大小 |
|
|
if (audioRecord?.recordingState == AudioRecord.RECORDSTATE_RECORDING) { |
|
|
val supportedSampleRates = intArrayOf(16000, 8000, 11025, 22050, 44100) |
|
|
audioRecord?.stop() |
|
|
var bufferSize = 0 |
|
|
} |
|
|
// 查找设备支持的最佳采样率 |
|
|
|
|
|
val sampleRate = supportedSampleRates.firstOrNull { rate -> |
|
|
|
|
|
bufferSize = AudioRecord.getMinBufferSize( |
|
|
|
|
|
rate, |
|
|
|
|
|
AudioFormat.CHANNEL_IN_MONO, |
|
|
|
|
|
AudioFormat.ENCODING_PCM_16BIT |
|
|
|
|
|
) |
|
|
|
|
|
bufferSize > 0 // 返回正值表示支持 |
|
|
|
|
|
} ?: 16000 // 默认回退值 |
|
|
|
|
|
|
|
|
|
|
|
val buffer = ByteArray(bufferSize) |
|
|
|
|
|
|
|
|
|
|
|
while (!Thread.interrupted() && audioRecord?.recordingState == AudioRecord.RECORDSTATE_RECORDING) { |
|
|
|
|
|
if (!isPaused) { |
|
|
|
|
|
// 读取音频 |
|
|
|
|
|
val bytesRead = audioRecord?.read(buffer, 0, buffer.size) ?: 0 |
|
|
|
|
|
if (bytesRead > 0) { |
|
|
|
|
|
|
|
|
|
|
|
// 写入Azure流 |
|
|
|
|
|
pushAudioStream?.write(buffer) |
|
|
|
|
|
|
|
|
|
|
|
// 保存录音 |
|
|
|
|
|
recordfile?.saveAudioDataToWav(buffer) |
|
|
|
|
|
} |
|
|
|
|
|
} |
|
|
|
|
|
} |
|
|
|
|
|
}.apply { start() } |
|
|
|
|
|
} |
|
|
|
|
|
|
|
|
// 释放回音消除器 |
|
|
/** |
|
|
echoCanceler?.let { |
|
|
* 停止麦克风捕获并释放所有相关资源 |
|
|
it.enabled = false |
|
|
*/ |
|
|
it.release() |
|
|
fun stopMicrophoneCapture() { |
|
|
echoCanceler = null |
|
|
try { |
|
|
} |
|
|
if (captureThread != null) { |
|
|
|
|
|
// 中断并等待捕获线程结束 |
|
|
|
|
|
captureThread?.interrupt() |
|
|
|
|
|
captureThread?.join(300) // 最多等待300ms |
|
|
|
|
|
|
|
|
|
|
|
// 停止录音并释放AudioRecord资源 |
|
|
|
|
|
audioRecord?.stop() // 必须先停止再释放 |
|
|
|
|
|
isPaused= true |
|
|
|
|
|
} |
|
|
|
|
|
|
|
|
// 释放噪声抑制器 |
|
|
|
|
|
noiseSuppressor?.let { |
|
|
|
|
|
it.enabled = false |
|
|
|
|
|
it.release() |
|
|
|
|
|
noiseSuppressor = null |
|
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
|
|
// 释放自动增益控制 |
|
|
} catch (e: Exception) { |
|
|
automaticGainControl?.let { |
|
|
Log.e("AudioConfig", "Error releasing resources: ${e.message}") |
|
|
it.enabled = false |
|
|
} finally { |
|
|
it.release() |
|
|
// 确保恢复原始音频状态 |
|
|
automaticGainControl = null |
|
|
// restoreOriginalAudioState() |
|
|
} |
|
|
} |
|
|
|
|
|
} |
|
|
|
|
|
|
|
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// 恢复音频模式 |
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this@AzureAsrHelper.audioManager?.mode = this@AzureAsrHelper.originalAudioMode |
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/** |
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* 释放音频资源 |
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*/ |
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fun releaseAudioResources() { |
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try { |
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isPaused= true |
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// 停止录音 |
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if (audioRecord?.recordingState == AudioRecord.RECORDSTATE_RECORDING) { |
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audioRecord?.stop() |
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} |
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// 释放录音实例 |
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// // 释放回音消除器 |
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audioRecord?.release() |
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// echoCanceler?.let { |
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audioRecord = null |
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// it.enabled = false |
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} catch (e: Exception) { |
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// it.release() |
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Log.e(tag, "释放音频资源失败: ${e.message}") |
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// echoCanceler = null |
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e.printStackTrace() |
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// } |
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// // 释放噪声抑制器 |
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// noiseSuppressor?.let { |
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// it.enabled = false |
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// it.release() |
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// noiseSuppressor = null |
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// } |
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// // 释放自动增益控制 |
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// automaticGainControl?.let { |
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// it.enabled = false |
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// it.release() |
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// automaticGainControl = null |
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// } |
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// 恢复音频模式 |
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this@AzureAsrHelper.audioManager?.mode = this@AzureAsrHelper.originalAudioMode |
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// 释放录音实例 |
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audioRecord?.release() |
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audioRecord = null |
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} catch (e: Exception) { |
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Log.e(tag, "释放音频资源失败: ${e.message}") |
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e.printStackTrace() |
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} |
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} |
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} |
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} |
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// /** |
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} |
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// * 麦克风流 - 拉流模式 |
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// * 实现PullAudioInputStreamCallback，为Azure SDK提供音频数据 |
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// */ |
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// private inner class MicrophoneStream : PullAudioInputStreamCallback() { |
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// private var audioRecord: AudioRecord? = null |
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// private var echoCanceler: AcousticEchoCanceler? = null |
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// private var noiseSuppressor: NoiseSuppressor? = null |
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// private var automaticGainControl: AutomaticGainControl? = null |
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// // 音频配置 |
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// private val sampleRate = 16000 |
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// private val channelConfig = AudioFormat.CHANNEL_IN_MONO |
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// private val audioFormat = AudioFormat.ENCODING_PCM_16BIT |
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// // 优化：减少缓冲区大小以降低延迟 |
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// private val bufferSize = AudioRecord.getMinBufferSize( |
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// sampleRate, channelConfig, audioFormat |
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// ).let { if (it < 0) 2048 else it } |
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// init { |
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// initMicrophone() |
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// } |
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// /** |
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// * 初始化麦克风 |
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// */ |
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// private fun initMicrophone() { |
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// try { |
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// // 创建录音对象 |
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// if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) { |
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// val format = AudioFormat.Builder() |
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// .setSampleRate(sampleRate) |
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// .setEncoding(audioFormat) |
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// .setChannelMask(channelConfig) |
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// .build() |
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// audioRecord = AudioRecord.Builder() |
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// .setAudioSource(MediaRecorder.AudioSource.VOICE_COMMUNICATION) |
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// .setAudioFormat(format) |
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// .setBufferSizeInBytes(bufferSize) |
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// .build() |
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// } else { |
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// audioRecord = AudioRecord( |
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// MediaRecorder.AudioSource.VOICE_COMMUNICATION, |
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// sampleRate, |
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// channelConfig, |
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// audioFormat, |
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// bufferSize |
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// ) |
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// } |
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// // 检查初始化状态 |
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// if (audioRecord?.state != AudioRecord.STATE_INITIALIZED) { |
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// throw IllegalStateException("AudioRecord初始化失败") |
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// } |
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// // 应用音频效果 |
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// applyAudioEffects() |
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// // 开始录音 |
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// audioRecord?.startRecording() |
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// // 检查录音状态 |
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// if (audioRecord?.recordingState != AudioRecord.RECORDSTATE_RECORDING) { |
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// throw IllegalStateException("录音启动失败") |
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// } |
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// } catch (e: Exception) { |
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// e.printStackTrace() |
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// } |
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// } |
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// /** |
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// * 应用音频效果 - 总是启用所有音频增强功能 |
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// */ |
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// private fun applyAudioEffects() { |
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// val sessionId = audioRecord?.audioSessionId ?: return |
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// try { |
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// // 设置音频模式为通信模式 |
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// this@AzureAsrHelper.audioManager?.mode = AudioManager.MODE_IN_COMMUNICATION |
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// // 启用声学回音消除 |
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// if (AcousticEchoCanceler.isAvailable()) { |
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// echoCanceler = AcousticEchoCanceler.create(sessionId) |
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// echoCanceler?.enabled = true |
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// Log.i(tag, "声学回音消除已启用") |
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// } else { |
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// Log.w(tag, "设备不支持声学回音消除") |
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// } |
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// // 启用噪声抑制 |
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// if (NoiseSuppressor.isAvailable()) { |
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// noiseSuppressor = NoiseSuppressor.create(sessionId) |
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// noiseSuppressor?.enabled = true |
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// Log.i(tag, "噪声抑制已启用") |
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// } else { |
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// Log.w(tag, "设备不支持噪声抑制") |
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// } |
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// // 启用自动增益控制 |
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// if (AutomaticGainControl.isAvailable()) { |
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// automaticGainControl = AutomaticGainControl.create(sessionId) |
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// automaticGainControl?.enabled = true |
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// Log.i(tag, "自动增益控制已启用") |
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// } else { |
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// Log.w(tag, "设备不支持自动增益控制") |
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// } |
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// Log.i(tag, "回音消除和音频增强功能已全部启用") |
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// } catch (e: Exception) { |
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// Log.e(tag, "设置音频效果失败: ${e.message}") |
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// } |
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// } |
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// /** |
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// * 获取音频格式 |
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// */ |
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// fun getFormat(): AudioStreamFormat = |
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// AudioStreamFormat.getWaveFormatPCM(16000.toLong(), 16.toShort(), 1.toShort()) |
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// /** |
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// * Azure SDK 调用此方法获取音频数据 |
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// * 这是拉流模式的核心方法，由SDK调用以获取音频数据 |
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// */ |
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// /** |
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// * 优化：简化音频数据读取（移除文件保存） |
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// */ |
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// override fun read(buffer: ByteArray): Int { |
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// try { |
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// val result = audioRecord?.read(buffer, 0, buffer.size) ?: -1 |
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// if (result < 0) { |
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// Log.e(tag, "读取音频数据失败: $result") |
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// return 0 |
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// } |
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// recordfile?.saveAudioDataToWav(buffer) |
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// return result |
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// } catch (e: Exception) { |
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// Log.e(tag, "读取音频异常: ${e.message}") |
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// return 0 |
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// } |
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// } |
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// /** |
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// * 优化：简化资源关闭 |
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// */ |
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// override fun close() { |
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// releaseAudioResources() |
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// } |
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// /** |
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// * 释放音频资源 |
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// */ |
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// private fun releaseAudioResources() { |
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// try { |
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// // 停止录音 |
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// if (audioRecord?.recordingState == AudioRecord.RECORDSTATE_RECORDING) { |
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|
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// audioRecord?.stop() |
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// } |
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// // 释放回音消除器 |
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|
|
|
|
// echoCanceler?.let { |
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|
|
// it.enabled = false |
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|
|
|
// it.release() |
|
|
|
|
|
// echoCanceler = null |
|
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|
|
// } |
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|
|
// // 释放噪声抑制器 |
|
|
|
|
|
// noiseSuppressor?.let { |
|
|
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|
|
// it.enabled = false |
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|
// it.release() |
|
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|
// noiseSuppressor = null |
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// } |
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|
// // 释放自动增益控制 |
|
|
|
|
|
// automaticGainControl?.let { |
|
|
|
|
|
// it.enabled = false |
|
|
|
|
|
// it.release() |
|
|
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|
|
// automaticGainControl = null |
|
|
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|
|
// } |
|
|
|
|
|
|
|
|
|
|
|
// // 恢复音频模式 |
|
|
|
|
|
// this@AzureAsrHelper.audioManager?.mode = this@AzureAsrHelper.originalAudioMode |
|
|
|
|
|
|
|
|
|
|
|
// // 释放录音实例 |
|
|
|
|
|
// audioRecord?.release() |
|
|
|
|
|
// audioRecord = null |
|
|
|
|
|
// } catch (e: Exception) { |
|
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|
|
|
// Log.e(tag, "释放音频资源失败: ${e.message}") |
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|
|
// e.printStackTrace() |
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// } |
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// } |
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|
// } |
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|
/** |
|
|
/** |
|
|
* 外部音频拉流 |
|
|
* 外部音频拉流 |
|
|
|
