public void run() {
// start the encoder
encoder.startEncoding();
try {
audioRecord.startRecording();
} catch (IllegalStateException e) {
this.isRecording = false;
return;
}
this.isRecording = true;
while (isRecording) {
bufferRead = audioRecord.read(samples, 0, bufferSize);
if (bufferRead > 0) {
// add the data to the encoder
encoder.addData(samples, bufferRead);
}
try {
Thread.sleep(20);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
audioRecord.stop();
encoder.stopEncoding();
}
public void setSoundsEntity(SoundsEntity soundsEntity) {
encoder.setSoundsEntity(soundsEntity);
}
// ¼��PCM������
// ��Ҫ����Ȩ�� <uses-permission android:name="android.permission.RECORD_AUDIO" />
// ��Ҫ��Audio_Sender��ķ������ݲ���
// һ�������ı���
public class Audio_Recorder implements Runnable {
private volatile boolean isRecording = false; // ¼����־
private AudioRecord audioRecord;
// ¼�Ʋ���ѡ��
private static final int audioSource = MediaRecorder.AudioSource.MIC;
private static final int sampleRate = 8000; // ȡ����8000hz
private static final int channelConfig = AudioFormat.CHANNEL_IN_MONO; // ������
private static final int audioFormat = AudioFormat.ENCODING_PCM_16BIT; // 16λ
private static final int BUFFER_FRAME_SIZE = 160;
private int audioBufSize = 0;
private short[] samples; // ������
private int bufferRead = 0; // ��recorder�ж�ȡ��samples�Ĵ�С
private int bufferSize = 0; // samples�Ĵ�С
private Audio_Encoder encoder = Audio_Encoder.getInstance();
public Audio_Recorder() {}
public void startRecording() {
bufferSize = BUFFER_FRAME_SIZE;
audioBufSize = AudioRecord.getMinBufferSize(sampleRate, channelConfig, audioFormat);
if (audioBufSize == AudioRecord.ERROR_BAD_VALUE) {
// do something
return;
}
samples = new short[audioBufSize];
if (null == audioRecord) {
audioRecord =
new AudioRecord(audioSource, sampleRate, channelConfig, audioFormat, audioBufSize);
}
// start to record data
new Thread(this).start();
}
public void run() {
// start the encoder
encoder.startEncoding();
try {
audioRecord.startRecording();
} catch (IllegalStateException e) {
this.isRecording = false;
return;
}
this.isRecording = true;
while (isRecording) {
bufferRead = audioRecord.read(samples, 0, bufferSize);
if (bufferRead > 0) {
// add the data to the encoder
encoder.addData(samples, bufferRead);
}
try {
Thread.sleep(20);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
audioRecord.stop();
encoder.stopEncoding();
}
public void stopRecording() {
this.isRecording = false;
}
public void setSoundsEntity(SoundsEntity soundsEntity) {
encoder.setSoundsEntity(soundsEntity);
}
}
