You probably don't need the callback interface. The read() will block until the buffer is full.
If you are getting buffer overflows, you are probably spending too much time in your doSomething() call. On May 19, 11:59 am, benmccann <[email protected]> wrote: > 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(); > > > > } > > > > > } --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -~----------~----~----~----~------~----~------~--~---
