Increase version

codec2talkie/build.gradle

@@ -10,8 +10,8 @@ android {
         applicationId "com.radio.codec2talkie"
         minSdkVersion 23
         targetSdkVersion 30
-        versionCode 167
-        versionName "1.67"
+        versionCode 168
+        versionName "1.68"
 
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
     }

libopus-android/src/main/cpp/OpusJNI.cpp

@@ -27,6 +27,7 @@ namespace Java_com_radio_opus_Opus {
 
             opus_encoder_ctl(encoder, OPUS_SET_BITRATE(bitrate));
             opus_encoder_ctl(encoder, OPUS_SET_COMPLEXITY(complexity));
+            opus_encoder_ctl(encoder, OPUS_SET_SIGNAL(OPUS_SIGNAL_VOICE));
         }
 
         int decoderError;