如何解决在android studio中检测高频18k-20k的问题请帮帮我
我正在制作 android 应用程序来检测 18k~20k。但是 Pitch 值没有得到它。音高值不能超过11000Hz。我尝试更改采样率的值,sampleSizeInBits,但它无法正常工作。请帮我解决这个问题。这可能是 TarasosDSP 库的问题吗..?
'''
tarsosdspAudioFormat=new tarsosdspAudioFormat(tarsosdspAudioFormat.Encoding.PCM_SIGNED,22050,16、 1、 2 * 1,ByteOrder.BIG_ENDIAN.equals(ByteOrder.nativeOrder()));
pitchTextView = findViewById(R.id.pitchTextView);
recordButton = findViewById(R.id.recordButton);
playButton = findViewById(R.id.playButton);
recordButton.setonClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if(!isRecording)
{
recordAudio();
isRecording = true;
recordButton.setText("stop");
}
else
{
stopRecording();
isRecording = false;
recordButton.setText("record");
}
}
});
}
public void recordAudio()
{
releasedispatcher();
dispatcher = AudiodispatcherFactory.fromDefaultMicrophone(22050,1024,0);
try {
RandomAccessFile randomAccessFile = new RandomAccessFile(file,"rw");
AudioProcessor recordProcessor = new WriterProcessor(tarsosdspAudioFormat,randomAccessFile);
dispatcher.addAudioProcessor(recordProcessor);
PitchDetectionHandler pitchDetectionHandler = new PitchDetectionHandler() {
@Override
public void handlePitch(PitchDetectionResult res,AudioEvent e){
final float pitchInHz = res.getPitch();
runOnUiThread(new Runnable() {
@Override
public void run() {
pitchTextView.setText(pitchInHz + "");
}
});
}
};
AudioProcessor pitchProcessor = new PitchProcessor(PitchProcessor.PitchEstimationAlgorithm.FFT_YIN,pitchDetectionHandler);
dispatcher.addAudioProcessor(pitchProcessor);
Thread audioThread = new Thread(dispatcher,"Audio Thread");
audioThread.start();
} catch (IOException e) {
e.printstacktrace();
}
}
'''
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