diff --git a/local_plugins/agent_service/ios/agent_service/Sources/agent_service/AudioSessionHub.swift b/local_plugins/agent_service/ios/agent_service/Sources/agent_service/AudioSessionHub.swift
index 4ed3d8bf8..0586be429 100644
--- a/local_plugins/agent_service/ios/agent_service/Sources/agent_service/AudioSessionHub.swift
+++ b/local_plugins/agent_service/ios/agent_service/Sources/agent_service/AudioSessionHub.swift
@@ -682,11 +682,11 @@ public class AudioSessionHub {
                 
                 switch action {
                 case .increase:
-                    newValue = min(currentValue + 0.1, 1.0)  // 改回0.1避免变化过大
+                    newValue = min(currentValue + 0.2, 1.0)  // 改回0.1避免变化过大
                 case .decrease:
-                    newValue = max(currentValue - 0.1, 0.0)
+                    newValue = max(currentValue - 0.2, 0.0)
                 case .mute:
-                    newValue = 0.0
+                    newValue = 0.1
                 case .setMax:
                     newValue = 1.0
                 case .setValue(let val):