android9.0 蓝牙录音
时间: 2023-07-26 16:03:58 浏览: 191
Android蓝牙录音
在 Android 9.0 及以上版本中,由于安全和隐私等方面的考虑,禁止了通过蓝牙耳机录制电话通话的音频。因此,如果你想要使用蓝牙耳机录制音频,只能在非电话通话的情况下进行。
以下是一个简单的示例代码,用于通过蓝牙耳机录制音频:
```
private BluetoothHeadset mBluetoothHeadset;
private BluetoothDevice mBluetoothDevice;
private BluetoothAdapter mBluetoothAdapter;
private AudioRecord mAudioRecord;
private boolean mIsRecording = false;
private int mBufferSize;
private byte[] mAudioBuffer;
private void startBluetoothRecording() {
if (mIsRecording) {
return;
}
mBluetoothAdapter = BluetoothAdapter.getDefaultAdapter();
if (mBluetoothAdapter == null || !mBluetoothAdapter.isEnabled()) {
return;
}
mBluetoothHeadset = new BluetoothHeadset(context, null);
if (mBluetoothHeadset.getConnectedDevices().isEmpty()) {
return;
}
mBluetoothDevice = mBluetoothHeadset.getConnectedDevices().get(0);
if (mBluetoothDevice == null) {
return;
}
mBufferSize = AudioRecord.getMinBufferSize(44100, AudioFormat.CHANNEL_IN_MONO, AudioFormat.ENCODING_PCM_16BIT);
mAudioBuffer = new byte[mBufferSize];
mAudioRecord = new AudioRecord(MediaRecorder.AudioSource.DEFAULT, 44100, AudioFormat.CHANNEL_IN_MONO, AudioFormat.ENCODING_PCM_16BIT, mBufferSize);
mAudioRecord.startRecording();
mIsRecording = true;
new Thread(new Runnable() {
@Override
public void run() {
while (mIsRecording) {
mAudioRecord.read(mAudioBuffer, 0, mBufferSize);
// 这里可以对读取到的音频数据进行处理,如保存到文件或进行实时分析
}
}
}).start();
}
private void stopBluetoothRecording() {
mIsRecording = false;
if (mAudioRecord != null) {
mAudioRecord.stop();
mAudioRecord.release();
mAudioRecord = null;
}
}
```
需要注意的是,上述代码仅供参考,实际使用时需要进行适当的修改和调试。同时,由于蓝牙耳机的性能和质量各不相同,录制的音频质量可能存在一定的差异。
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