I've been perplexed by the AudioRecord documentation on the OnRecordPositionUpdateListener interface but I think I got it figured out. All of the posts in this group asking why the callbacks are never called were assuming that the callbacks would tell you when to do a read. But what you need to be doing is reading at the same time as you have callbacks.
Setting up a listener with setPositionNotificationPeriod will cause the callback to be called every time you get that many frames read. Setting up a listener with setNotificationMarkerPosition will cause that callback to be called whenever you first get to that many frames total. Let's say you start a thread that loops on your AudioRecord, reading 1000 frames at a time. You could get periodic callbacks every 2500 frames, or you could get a marker callback after 100,000 frames. If you're not reading, you won't trigger callbacks. So don't do the reads in your callbacks. Use the callbacks to trigger other actions. I'm pretty sure I'm right about this, but if someone wants to chime in with corrections, please let us know. - dave www.androidbook.com -- 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
