Thanks for the response. I'm still foggy on the API usage though. I
basically want to listen to the mic and continually process the
incoming audio. Should I be using the OnRecordPositionUpdateListener
at all?
Or should it look something like:
recorder.startRecording()
while(recorder.read(buffer) > 0) {
doSomething(buffer)
}
When I've done the latter I get buffer overflow exceptions.
On May 15, 3:51 pm, Dave Sparks <[email protected]> wrote:
> You need to call the read() method.
>
> On May 15, 3:15 pm, benmccann <[email protected]> wrote:
>
> > Any ideas?
>
> > Thanks,
> > Ben
>
> > On May 15, 1:02 am, benmccann <[email protected]> wrote:
>
> > > Hi,
> > > I'm trying to figure out how to use theAudioRecordclass. I created
> > > a callback with a logging message, but don't ever see it called. Do
> > > you see anything wrong with what I'm doing? Do you have an example of
> > > how to use the API?
>
> > > Thanks,
> > > Ben
>
> > > import android.media.AudioFormat;
> > > import android.media.AudioRecord;
> > > import android.media.MediaRecorder;
> > > import android.util.Log;
>
> > > public class AudioListener {
>
> > > public static final int DEFAULT_SAMPLE_RATE = 8000;
> > > private static final int DEFAULT_BUFFER_SIZE = 4096;
> > > private static final int CALLBACK_PERIOD = 4000; // 500 msec
> > > (sample rate / callback period)
> > > private finalAudioRecordrecorder;
>
> > > public AudioListener() {
> > > this(DEFAULT_SAMPLE_RATE);
> > > }
>
> > > private AudioListener(int sampleRate) {
> > > recorder = newAudioRecord(MediaRecorder.AudioSource.DEFAULT,
> > > sampleRate, AudioFormat.CHANNEL_CONFIGURATION_DEFAULT,
> > > AudioFormat.ENCODING_DEFAULT, DEFAULT_BUFFER_SIZE);
> > > }
>
> > > public void start() {
> > > recorder.setPositionNotificationPeriod(CALLBACK_PERIOD);
> > >
> > > recorder.setRecordPositionUpdateListener(newAudioRecord.OnRecordPositionUpdateListener()
> > > {
> > > @Override
> > > public void onMarkerReached(AudioRecordrecorder) {
> > > Log.e(this.getClass().getSimpleName(), "onMarkerReached
> > > Called");
> > > }
>
> > > @Override
> > > public void onPeriodicNotification(AudioRecordrecorder) {
> > > Log.e(this.getClass().getSimpleName(), "onPeriodicNotification
> > > Called");
> > > }
> > > });
>
> > > recorder.startRecording();
> > > }
>
> > > }
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