Hi All,
i'm using vdelay / vdelay3 and the delayed sounds are at a different pitch
respect to source sound.
The csd is a simple repetition of brief sines send to an instrument vdelay
(with p3 at -1) and, of course,
 with changing delay time.

Is this correct? And, if yes, why?

thanks,
ciao,
francesco.

Hello Francesco,
If you change the delay time, you will also get a pitch change.
You can try using your example with a static delay time, just to test
that you are able to et the original pitch thru the delay.
best
Oeyvind

2010/12/30 francesco :
>
> Hi All,
> i'm using vdelay / vdelay3 and the delayed sounds are at a different pitch
> respect to source sound.
> The csd is a simple repetition of brief sines send to an instrument vdelay
> (with p3 at -1) and, of course,
>  with changing delay time.
>
> Is this correct? And, if yes, why?
>
> thanks,
> ciao,
> francesco.
> --
> View this message in context: http://csound.1045644.n5.nabble.com/vdelay-tp3322248p3322248.html
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>
>
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>


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on 2010-12-30 at 01:18 francesco wrote:

>Is this correct? And, if yes, why?

yes, it is correct, see doppler in the wikipedia.



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Ok, thanks.
It seems that the pitch difference depends on maximum delay time used
(using a line opcode to change the delay time).
And like the Manual says:

Note that linear functions have no pitch change effects.

instead using exponential line work progressively changing the pitch.

Many thanks, i have understand something.
ciao,
francesco.