diff --git a/app/src/main/kotlin/com/tutpro/baresip/BaresipService.kt b/app/src/main/kotlin/com/tutpro/baresip/BaresipService.kt
index 5aecd968..501a1579 100644
--- a/app/src/main/kotlin/com/tutpro/baresip/BaresipService.kt
+++ b/app/src/main/kotlin/com/tutpro/baresip/BaresipService.kt
@@ -1631,7 +1631,7 @@ class BaresipService: Service() {
         var audioFocusRequest: AudioFocusRequestCompat? = null
         var aec = AcousticEchoCanceler.isAvailable()
         var agc = AutomaticGainControl.isAvailable()
-        private var ns = NoiseSuppressor.isAvailable()
+        private val ns = NoiseSuppressor.isAvailable()
         private var btAdapter: BluetoothAdapter? = null
 
         fun requestAudioFocus(ctx: Context): Boolean  {
diff --git a/app/src/main/kotlin/com/tutpro/baresip/Config.kt b/app/src/main/kotlin/com/tutpro/baresip/Config.kt
index b6473d7e..950db7f9 100644
--- a/app/src/main/kotlin/com/tutpro/baresip/Config.kt
+++ b/app/src/main/kotlin/com/tutpro/baresip/Config.kt
@@ -158,7 +158,7 @@ object Config {
             config = "${config}module webrtc_aecm.so\n"
 
         val micGain = previousVariable("augain")
-        config = if (!BaresipService.agc && (micGain == ""  || micGain == "1.0"))
+        config = if (BaresipService.agc || micGain == ""  || micGain == "1.0")
             "${config}augain 1.0\n"
         else
             "${config}module augain.so\naugain $micGain\n"