Hi,

General (Pd-101?) question about how Pd talks to the audio interface for sample rate agreement.

On my system - OS X 10.9, Komplete Audio 6 interface, pd vanilla 45.4 - I can set Pd to a different sample rate from my interface, yet not achieve the expected transpositions from having unmatching sample rates.

Within Pd, I have soundfiles recorded at 24, 44.1, 48, 88.2, 96, and 196 rates. When I set Pd to a sample rate other than the rate of the recorded file, the playback transposes as expected from the differing sample rates...i.e. the 44.1 file plays back at a higher frequency when Pd is set to a sample rate > 44.1.

What I was expecting was that if I deliberately unmatch the sample rate of my interface and Pd, that the sonic output would be similarly transposed due to the sample rate in-equality. However, it seems that I can set my interface to any sample rate, set Pd to any sample rate, and the sonic output will be stable - a 440 osc~ will sound like a 440 osc~

• rather than transposed as stated in the Pd documentation section 2.4.1.

I get the same stable results when Pd is set to output via my iMac's internal sound processor, too.

I was hoping to use the unmatching sample rates between software and hardware as way of illustrating the necessity to have the sample rates match.

Thoughts, suggestions, or clarifications?

Thanks, br