On 29 Aug 2025, at 09:55, Johann Philippe <000002c2c0737523-dmarc-request@listserv.heanet.ie> wrote:



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Thanks. 

Sure, I wasn't stuck on this issue, since multiple ftconv's could do the trick, or split the IR in separate mono files to use with pconvolve. 

Just wondering if this 4 channel limitation has an historical reason, or if it is still relevant

anyway

Thanks

Best

Le vendredi 29 août 2025 à 13:44:18 UTC+2, vlz <viclazzarini@gmail.com> a écrit :

ftconv can be used with up to 8 channels. Also you can use multiple ftconvs reading from the same IR, so there is no channel limit.

Personally, I find ftconv a whole lot more convenient and flexible than pconvolve.

best

Prof. Victor Lazzarini

Maynooth University

Ireland

On 29 Aug 2025, at 09:55, Johann Philippe <000002c2c0737523-dmarc-request@listserv.heanet.ie> wrote:



Hello, 

I see pconvolve IR's can't accept channel argument more than 4. 

Is it still relevant today ?

Here in source (ugens9.c) : 

  if (UNLIKELY(channel < 1 || ((channel > 4) && (channel != ALLCHNLS)))) {
    return csound->InitError(csound, Str("channel request %d illegal"), channel);
  }

Best 

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