[英]Default Record Voice in Android
对于录制Android,可以使用android.media.MediaRecorder。 所有API都列在此页面http://developer.android.com/reference/android/media/MediaRecorder.html中 。 这应该可以解决您的所有问题。 示例代码
MediaRecorder recorder = new MediaRecorder();
recorder.setAudioSource(MediaRecorder.AudioSource.MIC);
recorder.setOutputFormat(MediaRecorder.OutputFormat.THREE_GPP);
recorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);
recorder.setOutputFile(PATH_NAME);
recorder.prepare();
recorder.start(); // Recording is now started
...
while(recordingNotOver)
{
int lastMaxAmplitude = recorder.getMaxAmplitude();
// you have the value here in lastMaxAmplitude, do what u want to
}
recorder.stop();
recorder.reset(); // You can reuse the object by going back to setAudioSource() step
recorder.release(); // Now the object cannot be reused
我把一些代码。
这是主要的课程。
final AudioRecorder recorder = new AudioRecorder("/calls");
try {
recorder.start();
try {
this.wait(10000);
} catch (InterruptedException e) {
e.printStackTrace();
}
recorder.stop();
} catch (IOException e) {
e.printStackTrace();
}
}
}
辅助类是:
public class AudioRecorder {
final MediaRecorder recorder = new MediaRecorder();
final String path;
public AudioRecorder(String path) {
this.path = sanitizePath(path);
}
private String sanitizePath(String path) {
if (!path.startsWith("/")) {
path = "/" + path;
}
if (!path.contains(".")) {
path += ".3gp";
}
//This is the command I would like to change, because I want to save the audio
//files in the internal memory instead of the SD card
return Environment.getDataDirectory().getAbsolutePath() + path;
}
public void start() throws IOException {
String state = android.os.Environment.getExternalStorageState();
if(!state.equals(android.os.Environment.MEDIA_MOUNTED)) {
throw new IOException("SD Card is not mounted. It is " + state + ".");
}
// make sure the directory we plan to store the recording in exists
File directory = new File(path).getParentFile();
if (!directory.exists() && !directory.mkdirs()) {
throw new IOException("Path to file could not be created.");
}
recorder.setAudioSource(MediaRecorder.AudioSource.MIC);
recorder.setOutputFormat(MediaRecorder.OutputFormat.THREE_GPP);
recorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);
recorder.setOutputFile(path);
recorder.prepare();
recorder.start();
}
public void stop() throws IOException {
recorder.stop();
recorder.release();
}
}
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