No splicing required: https://www.semanticscholar.org/paper/Low-latency-audio-pitch-shifting-in-the-time-domain-Juillerat-Schubiger-Banz/9fa827c688688157cc93ec9b296f24a45c6dfdf6
It's all IIRs, HIlberts, oscillators, e.g. a large bank of narrow band frequency shifters. It could be done with all analog right? Key word I used is "silly" b/c that's what it would be. -Russ On Tue, Dec 5, 2023 at 9:22 PM robert bristow-johnson < [email protected]> wrote: > Still I wonder how you would make good splices. Even with lotsa > overlapping grains, some are gonna be way outa phase and makes a glitch. > > It just seems to me that some kinda analysis needs to be done to decide > where to splice to and when to start. > > I knew about the spinning heads on tape but never saw any of them. > > *Powered by Cricket Wireless* > > ------ Original message------ > *From: *Russell Wedelich > *Date: *Tue, Dec 5, 2023 8:15 PM > *To: *[email protected]; > *Cc: * > *Subject:*Re: MUSIC-DSP Digest - 3 Dec 2023 to 4 Dec 2023 (#2023-67) > > “(Like in pitch shifting. But I'd like to see you do decent pitch shifting > with a purely analog device.) “ > I once had a silly idea for an all analog (well digitally controlled) Rollers > type Pitchshifter, frequency shifting approximating pitch shifting in many > bands. If would be sooooo expensive! So many opamps. > Long time reader, first time replied (maybe). > -Russ > > On Dec 5, 2023, at 3:23 PM, robert bristow-johnson wrote: > > > > (Like in pitch shifting. But I'd like to see you do decent pitch shifting > > with a purely analog device.) > >
