Hallo, Matteo Sisti Sette hat gesagt: // Matteo Sisti Sette wrote:
Frank Barknecht wrote:
- Simply using a vline~ object and ?loop it? with a different
start position the second time onwards.
I'd simply do 4).
That's ok if you're not gonna change the pitch while playing the sample.
Yes, my suggestion is for a one-shot sampler with a looping end and constant pitch.
Suppose for a moment that you don't need a sample start point different from the loop start point, i.e. the begin and end point don't change from the first to the second time. The phasor solution (which is trivial in this case) allows you to have a signal as an input to the phasor, thus allowing to change the pitch of the sampler in real time and smoothly. This is not possible (afaics) with the vline~ solution.
For one-shot sampler phasor~ is not good IMO because of the quantiztion of the phase-inlet. phasor~ samplers would be terrible for drum-samplers.
Also because of the phasor~ quantization it's hard to start playing with vline~ and then switch to looping phasor, unless you do a crossfade. (But a crossfade would work.)
One solution for reproducing a sample with a signal pitch input without using a phasor is:
(input pitch ~) | [rpole 1] | [tabread4~]
(sending a [clear( to the rpole when starting playing)
Puh, wouldn't [rpole~ 1] maybe be dangerous? Anyway I don't see any advantage in rpole~ over phasor~.
However, the only way I can think of in order to switch from this to the phasor (or to jump to a given point of the sample) at the correct time independently of pitch history, is to use a [threshold~]; but that wouldn't be accurate because it's block-quantized.
Any other idea?
Hey!!! I just had one. But I would like anybody to suggest a simpler or more elegant one.
I may use 2 phasors (or an rpole and a phasor), both fed with the same pitch input.
Let's suppose this is the sample: |-----SS-----LB-----LE------| where: SS= sample start (where we want the sample to start playing the first time) LB= loop begin LE= loop end
With appropriate calculations, the two phasors can be adjusted so that:
- Phasor A reproduces the sample the first time from SS to LE in its first
cycle. In subsequent cycles it would do the same but it will be muted so we don't mind. 2) Phasor B reproduces the loop region; its initial phase is calculated in such a way that at the beginning, when it is muted, it will be producing garbage, but when phasor A will reach point LB for the first time, phasor B will also be on LB, so that, during ONE cycle of phasor B, the two phasors will be reproducing *exactly* the same portion LB-LE synchronously.
Show us the code! ;)
This may work, but indeed would be very complicated. Also I assume, that changing the frequency of the phasor~ before you've reached the loop area would completely mess up the caluclations of phase and/or frequency of the second phasor~, especially as you can only set the phase of a phasor~ once every block.
Any simpler idea?
susloop~
Ciao
Frank Barknecht _ ______footils.org_ __goto10.org__