android - 如何在android中调整麦克风音量？

Question

我想录音，但是mic(话筒)输入声音太大，想调节mic音量，有人帮我吗？以下是主要代码:

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);

Answer 1

当麦克风打开时，它使用 AudioManager.STREAM_MUSIC 的音量.

尝试增大此音量并检查麦克风音量是否也增大。

与:

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