[sdiy] Buchla 295 summed output

[Lanterman, Aaron D]

I can’t remember if I posted it here or not, but a few weeks back I computed the summed output of the Buchla 295 10-band comb filter. I realized I had an error in that code in terms of how the highest and lowest bands were treated. Fixing it reveals this graph.

The blue line is what you get if you just sum the outputs of the filters. The red line is what you get if you flip every-other bandpass filter and the highpass filter. As Don Tillman predicted, this actually gives you a *flatter* response since it partially compensates for weirdness in how the *phases* of the different filters interact.

Aaron Lanterman, Prof. of ECE, Georgia Tech
My blog on Education and Innovation: https://edupocalypsenow.wordpress.com
My blog on Electronics and Programming: https://lantertronics.blogspot.com
My YouTube channel on Electronics and Programming: https://www.youtube.com/c/lantertronics

[May be an image of text that says '6 dB 4 in Magnitude o 2 -2 102 103 Frequency in Hz 10']

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