Should I file a bug report for Cupcake's onMarkerReached() in
AudioTrack playback? The only workaround I currently have for
onMarkerReached() never getting invoked is to explicitly poll
getPlaybackHeadPosition(), while taking into account extra margins for
sample rates 11025 and 22050 because there the getPlaybackHeadPosition
() does not quite reach the expected end values - as described in my
previous post.

Regards

On Apr 30, 10:02 pm, blindfold <seeingwithso...@gmail.com> wrote:
> Has anybody had any success with OnPlaybackPositionUpdateListener? I'm
> successfully playing one-second PCM sound clips with AudioTrack in
> MODE_STATIC mode (although the playback often appears truncated), but
> no matter what I do, onMarkerReached() is never called. I set
> setNotificationMarkerPosition() to a position a bit less than my
> sample count. I do not have any such problems with its MediaPlayer
> counterpart setOnCompletionListener(). I simply want onMarkerReached()
> to run when my AudioTrack instance has finished playing, but the
> getPlayState() remains PLAYSTATE_PLAYING after my AudioTrack has
> finished sounding. What might be wrong? What does it take to get
> AudioTrack to run onMarkerReached() at the end of the data? Any
> concrete sample code for this that works?
>
> Another strange thing is that at the end of a one second sound at
> sample rate 16000, getPlaybackHeadPosition() returns 16000 as
> expected, but for a sample rate of 22050 getPlaybackHeadPosition()
> becomes consistently 22016, for a sample rate of 11025
> getPlaybackHeadPosition() becomes 11008, while for a sample rate of
> 8000 the getPlaybackHeadPosition() returns consistently 8000 again.
> Are the discrepancies for sample rates of 11025 and 22050 due to
> rounding inaccuracies in the AudioTrack sample rate divider?
>
> Thanks
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