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