[Discuss-gnuradio] Audio sink does not throttle sample flow

[Felix Wunsch]

Hi all,

I recently wrote a block for decoding DRM AAC streams. For testing I put 
together a small flow graph consisting of a wav source, encoder block, 
decoder block, (rational) resampler and an audio sink (an image of the 
flow graph is attached).

When I now run this flow graph, the audio is correctly decoded, but the 
output is not throttled to 44.1 kHz as it should be. It seems to be 
running at full speed. I also connected a resampler and an audio sink 
directly to the wav source and there the output is correct.

I use default values for the audio sink (alsa, 44.1 kHz), GNU Radio 
3.5.1 and xubuntu 11.10.

Any hints why this is happening and how to solve this?

Best regards,
Felix Wunsch

audio_no_throttle.jpg
Description: JPEG image