Buchla speaks from Giorgio Sancristoforo on Vimeo.
"A boring (short), but educative video about formant filtering with the 291e Buchla Triple Morphing Filter.
Thanks to the internal stage sequencer it is possible to program the 3 bandpass filter for simple vocal formants sequences.
oversimple work, just tweaked the freqs... I could do better with bandwidth and amplitude tweaks... but whatever... it sounds fun :)
these are correct in italian.. I suppose that vowels in english have different formants...
tenor "a"
freq (Hz)
650
1080
2650
tenor "e"
freq (Hz)
400
1700
2600
tenor "i"
freq (Hz)
290
1870
2800
tenor "o"
freq (Hz)
400
800
2600
tenor "u"
freq (Hz)
350
600
2700"
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