android上的qt5不能用QAudioRecorder录制PCM wav文件

import android.media.AudioFormat;
import android.media.AudioRecord;
import android.media.MediaRecorder;
import java.io.DataOutputStream;
import java.io.FileOutputStream;
import java.io.IOException;

public class AudioRecorder {
    private static final int SAMPLE_RATE = 44100;
    private static final int CHANNEL_CONFIG = AudioFormat.CHANNEL_IN_MONO;
    private static final int AUDIO_FORMAT = AudioFormat.ENCODING_PCM_16BIT;
    private static final int BUFFER_SIZE = AudioRecord.getMinBufferSize(SAMPLE_RATE, CHANNEL_CONFIG, AUDIO_FORMAT);

    private AudioRecord audioRecord;
    private boolean isRecording = false;

    public void startRecording(String filePath) {
        try {
            audioRecord = new AudioRecord(MediaRecorder.AudioSource.MIC, SAMPLE_RATE, CHANNEL_CONFIG, AUDIO_FORMAT, BUFFER_SIZE);
            audioRecord.startRecording();

            isRecording = true;

            byte[] buffer = new byte[BUFFER_SIZE];
            DataOutputStream dataOutputStream = new DataOutputStream(new FileOutputStream(filePath));

            while (isRecording) {
                int bytesRead = audioRecord.read(buffer, 0, BUFFER_SIZE);
                dataOutputStream.write(buffer, 0, bytesRead);
            }

            dataOutputStream.close();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    public void stopRecording() {
        isRecording = false;
        audioRecord.stop();
        audioRecord.release();
    }
}