Montag, 26. März 2012

PyAudio with 24 bit under windows

Here are the results, proofing that with the WASAPI architecture I got true audio 24 bit samples under Windows 7:



Architecture: MME (default for PyAudio)
Requested resolution: 16 bit
Architecture: MME (default for PyAudio)
Requested resolution: 24 bit
Note that the returned data has still only 16 bit precission and is zero padded to 24 bit.

 

 Architecture: WASAPI
Requested resolution: 16 bit


Architecture: WASAPI 
Requested resolution: 24 bit
This is how it should be. Note the much better resolution. Now the analog part of the soundcard is determining the noise floor and not the quantization noise.






















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