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android - How to record voice call using …
https://stackoverflow.com/questions/45098103/how-to-record-voice-call-using-audiosource-voice-call
VOICE_CALL is deprecated now. That is why this error occurred. Use VOICE_COMMUNICATION as AudioSource as it is microphone audio source tuned for voice communications such as VoIP. I am also working with call recording app but it failed in Android 7.1.1 If you are not trying call record on Android 7.1.1 below code will work.
How to record voice call using AudioSource.VOICE_CALL ...
https://stackify.dev/379842-how-to-record-voice-call-using-audiosource-voice-call
Use VOICE_COMMUNICATION as AudioSource as it is microphone audio source tuned for voice communications such as VoIP. I am also working with call recording app but it failed in Android 7.1.1 If you are not trying call record on Android 7.1.1 below code will work.
MediaRecorder.AudioSource音频参数说明_Android_小白-CSDN博 …
https://blog.csdn.net/m0_37039192/article/details/77776844
MediaRecorder.AudioSource.DEFAULT 默认音频源 VOICE_CALL︰设定录音来源为语音拨出的语音与对方说话的声音。MIC︰设定录音来源为麦克风。CAMCORDER︰设定录音来源与同方向的相机麦克风相同，若相机无内置相机或无法设定时，则使用预设的麦克风。
android实现通话自动录音上传 - 简书
https://www.jianshu.com/p/e64cf8be09cf
亲测只有MediaRecorder.AudioSource.VOICE_CALL是可以实现双向录音的，但是只在5.1及以下的手机。 后面查看源码才发现 /** Voice call uplink + downlink audio source * <p> * Capturing from <code>VOICE_CALL</code> source requires the * {@link android.Manifest.permission#CAPTURE_AUDIO_OUTPUT} permission.
Android MediaRecorder - IllegalStateException - Stack …
https://stackoverflow.com/questions/42252844/android-mediarecorder-illegalstateexception
this problem causing by this Audio source recorder.setAudioSource(MediaRecorder.AudioSource.VOICE_CALL); not working on your device and android! change that to recorder.setAudioSource(MediaRecorder.AudioSource.MIC); –
Difference between VOICE_COMMUNICATION and MIC in ...
https://stackoverflow.com/questions/47394634/difference-between-voice-communication-and-mic-in-mediarecorder-audiosource
According to the Android Developer Reference for MIC and VOICE_COMMUNICATION, some pre-processing like echo cancellation, noise suppression is applied on the audio captured using VOICE_COMMUNICATION which, in turn, causes some attenuation on the data. Moreover, on doing such pre-processing, audio signals with low …
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