Re: [music-dsp] two fundamental questions Re: FFT for realtime synthesis?

2018-10-30 Thread gm
Thanks for your answer, it's much apreciated. My goal is to resynthesize arbitary noises. If you do that with wavetables you end up with a pitch of 20 Hz, hence the FFT. My product idea was rubbish though and your post confirms that. For your interest, I recently invented "noisetable

Re: [music-dsp] two fundamental questions Re: FFT for realtime synthesis?

2018-10-30 Thread robert bristow-johnson
Original Message Subject: [music-dsp] two fundamental questions Re: FFT for realtime synthesis? From: "gm" Date: Tue, October 30, 2018 8:17 pm To: music-dsp@music.columbia.edu

[music-dsp] two fundamental questions Re: FFT for realtime synthesis?

2018-10-30 Thread gm
Am 30.10.2018 um 16:30 schrieb gm: -Compress the peaks (without the surrounding regions) and noise into smaller spectra. (but how? - can you simply add those that fall into the same bins?) snip... I am curious about the spectrum compression part, would this work and if not why not?

Re: [music-dsp] pitch shifting in frequency domain Re: FFT for realtime synthesis?

2018-10-30 Thread gm
Ok, heres a final idea, can't test any of this so it's pure science fiction: -Take a much larger FFT spectrogramme offline, with really fine overlap granularity. -Take the cesptrum, identify regions/groups of transients by new peaks in the cepstrum. -Pick peaks in the spectrum, by