Re: Using Csound Jack Backend with Pipewire

Hi Brandon,
On 05/02/2026 19:06, you wrote:
> Hello all,
>
> Has anyone been using csound with -+rtaudio=jack while using pipewire 
> as their jack backend? I've found that it leads to some weirdness, 
> including not playing back sound at all sometimes (this was happening 
> in non-predictable ways). Also, it seems to require the -B buffer size 
> to be 2048 for my machine, even though pw-top says it's running at 
> 1024 as its buffer size.
>
> Csound has been working great using -+rtaudio=pulse, but when I want 
> to use it for live midi stuff, I definitely will need to use the 
> -+rtaudio=alsa, or -+rtaudio=jack for that lower latency.
>
> Thank you again for your help,
> Brandon Hale
I've been running it on the church organ for a few months now. I had 
weird problems with Jack2, and thought to give
pipewire a go at handling it. Since then I've had no hangups, and 
everyone is happy.

I'm only using Csound as a mixer, as the organ has 7 output channels, 
but we only have 5 speaker cabinets. It reads in
the 7 channels from GrandOrgue, and passes various combinations, (chosen 
by our organist, not me) and feeds the resulting
sounds out on the 5 output channels for amplification and output to the 
speakers.

I don't have the parameters to hand, I think we're running at 1024. 
There were a few problems getting GrandOrgue to work with
pipewire-jack, mainly caused by having both the jack and pipewire-jack 
libraries, eventually got rid of the original jack2
ones, then it all behaved pretty well.

Bill

-- 
+----------------------------------------+
| Bill Purvis          G8DIO             |
| email: [email protected]                  |
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