如何调整在Android的麦克风音量？ [英] How to adjust microphone volume in android?

问题描述

我要刻录机的声音，但MIC（麦克风）输入声音太响了，我要调整麦克风音量，会有人帮助我吗？以下是主要的code：

 私人INT audioSource = MediaRecorder.AudioSource.MIC;

私有静态诠释sampleRateInHz = 8000;

私有静态诠释channelConfig = AudioFormat.CHANNEL_CONFIGURATION_MONO;

私有静态诠释AudioFormat的= AudioFormat.ENCODING_PCM_16BIT;

audioRecord =新AudioRecord（audioSource，sampleRateInHz，channelConfig，AudioFormat的，bufferSizeInBytes）;
audioManager.setSpeakerphoneOn（假）;
 

解决方案

当话筒打开时，它使用的 AudioManager.STREAM_MUSIC 。

试着增加此卷，并检查麦克风的音量也增加了。

使用：

  AudioManager上午=（AudioManager）getSystemService（Context.AUDIO_SERVICE）;
am.setStreamVolume（AudioManager.STREAM_MUSIC，yourVolume，0）;
 

I want to recorder the sound, but the mic (microphone) input sound is too loud, and I want to adjust the mic volume, would someone help me? The following is the main code:

private int audioSource = MediaRecorder.AudioSource.MIC;

private static int sampleRateInHz = 8000;

private static int channelConfig = AudioFormat.CHANNEL_CONFIGURATION_MONO;

private static int audioFormat = AudioFormat.ENCODING_PCM_16BIT;

audioRecord = new AudioRecord(audioSource, sampleRateInHz,channelConfig, audioFormat, bufferSizeInBytes);
audioManager.setSpeakerphoneOn(false);

解决方案

When the microphone is open, it used the volume of the AudioManager.STREAM_MUSIC.

Try to increase this volume and check if the microphone volume also increased.

With:

AudioManager am = (AudioManager)getSystemService(Context.AUDIO_SERVICE);
am.setStreamVolume(AudioManager.STREAM_MUSIC, yourVolume, 0);

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