public class AudioRecorderActivity extends Activity {
private static final int RECORDER_SAMPLERATE = 8000;
private static final int RECORDER_CHANNELS = AudioFormat.CHANNEL_IN_MONO;
private static final int RECORDER_AUDIO_ENCODING = AudioFormat.ENCODING_PCM_16BIT;
private AudioRecord recorder = null;
private static final String TAG = "AudioRecorderActivity";
short[][] buffers = new short[256][160];
int ix = 0;
private boolean stopped = false;
private void startRecording() {
android.os.Process.setThreadPriority(android.os.Process.THREAD_PRIORITY_URGENT_AUDIO);
try {
int N = AudioRecord.getMinBufferSize (
RECORDER_SAMPLERATE,
RECORDER_CHANNELS,
RECORDER_AUDIO_ENCODING) * 20;
recorder = new AudioRecord(AudioSource.MIC,
RECORDER_SAMPLERATE,
RECORDER_CHANNELS,
RECORDER_AUDIO_ENCODING,N );
recorder.startRecording();
while(!stopped) {
short[] buffer = buffers[ix++ % buffers.length];
N = recorder.read(buffer,0,buffer.length);
}
}
catch(Throwable x) {
Log.v(TAG,"Error reading voice audio",x);
x.printStackTrace();
}
finally {
stopped = true;
stopRecording();
}
}
}
问题:虽然代码 fragment 基于 StackOverflow 的示例，但它不起作用 请让我知道可能是什么错误？
这是错误信息
12-20 03:44:32.271: E/AudioRecord(224): AudioFlinger could not create record track, status: -1
12-20 03:44:32.271: E/AudioRecord-JNI(224): Error creating AudioRecord instance: initialization check failed.
12-20 03:44:32.271: E/AudioRecord-Java(224): [ android.media.AudioRecord ] Error code -20 when initializing native AudioRecord object.
最佳答案
为AndroidManifest.xml添加record_audio权限
<uses-permission android:name="android.permission.RECORD_AUDIO" />
关于android - AudioFlinger 无法创建记录轨道，状态 : -1 , 需要 ifx 帮助，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/20693001/