Hi Eric, Sounds like you might want to be using libpd_process_raw() instead. If I'm remembering correctly, libpd_process_float() expects interleaved samples in the buffer you feed it, and process_raw() expects blocks of samples interleaved by channel.
On Sat, Jun 3, 2023 at 3:50 PM Eric Lennartson <[email protected]> wrote: > Hello all, > > I have been experimenting with using python and libpd, and for the most > part it works well. > However, I have been trying to use the other processing methods such as > libpd_process_float() or libpd_process_double(), but when I do I just get > crazy noise. > The code I'm working with is just a modified version of the echo.py file > in the samples section of the libpd github page. Basically, all I have done > is change the pyaudio format to paFloat32, created a dummy buffer to pass > to the process method with array.array('f', range(libpd_blocksize()) and > called libpd_process_float() instead. I did check to see if the format was > supported using pyaudio's is_format_supported() method and it returned > True. The pd patch itself is just a quite sine tone straight into the dac. > So I'm really scratching my head here, what am I missing? > > Thanks for any insight you can provide. > > Eric > _______________________________________________ > [email protected] mailing list > UNSUBSCRIBE and account-management -> > https://lists.puredata.info/listinfo/pd-list > -- William Brent “Great minds flock together” Conflations: conversational idiom for the 21st century www.conflations.com
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