From Tristan Sent Mon, Jun 4th 2018, 23:42
From Tristan Sent Mon, Jun 4th 2018, 23:42
Hi Mike, This issue was covered at length in a late 80s edition of Keyboard magazine along with tests and reviews of the sampler models available at that time. I should really scan it because I am not sure it is currently online anywhere. There was a mix of variable and fixed rate samplers in the late 80s so the transition happened around that time, although it was somewhat manufacturer specific. Off the op of my head: Akai S612, S7x, S9x variable rate, S1x, S3x etc fixed rate. Emu I, II, & III, Emax variable rate, Emax II, EIIIx later fixed rate Ensoniq all fixed rate although Mirage acts more like variable rate Roland all fixed rate /Tristan On Tue, Jun 5th, 2018 at 1:59 AM, Mike Perkowitz <xxxx@xxxxxxxxx.xxx> wrote: > hello, analog friends! since digital synthesis is now fair game here, I > have some questions. it's my understanding that in the early digital era, > sample playback tended to be done by using a clock to run through a buffer > of samples, and you'd vary the pitch by varying the clock speed. if you > have multiple voices, you'd presumably have multiple clocks, set for the > pitch of each note you want to play, and you'd mix your voices in analog. I > believe this was used for digital delay, synths like the PPG wave, and > early samplers. right? > > I believe later sample playback tended to use a fixed-rate clock, and pitch > would be controlled, I'm guessing, via interpolation or removing samples. > with a fixed clock, all your voices could be computed together and mixed > digitally, and you could provide a single digital output. correct? > > so my question is... when did that transition happen? and does anyone know > which devices (samplers, especially) used which methods? also, how are > various eurorack oscillators doing it? >