[Csnd] local sample rate

The Csound Mailinglist
1

Hi, i would appreciate it if you help me:
i need a local sampling rate inside an instrument which be different from global sr value.
which allows me to have a higher sampling rate than my soundcard's sr (to avoid aliasing)
is there any opcodes or UDOs similar to setksmps for sr?
i searched around and found these opcodes:
upsamp and downsamp
but im not sure these are the solution for my needs
thank you in advance

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2

Hello Parham,
AFAIK only Csound 7, which is in Beta, allows that. And you are right, upsamp doesn't do that.

Best wishes,

Jeanette

3

thanks jeanette! what is it in CS7? any new opcode?

4

Hi Joahcim,
I'm sorry, I don't know. I just heard that CS7 has a facitility to set a local samplerate. A friend of mine read it or heard it on one of the Csound meetings. It got mentioned, because it sounds like a brilliant feature for a few techniques.

Best wishes,

Jeanette

5

thanks --- i have an idea whom to ask ...

6

oversample and undersample are the new opcodes for SR conversion to local sr in UDOs.

They don’t seem to have been added yet to the new manual.

7

fantastic extension --- thanks!