Hey hey,
I tried to help someone with a simple multichannel mixer, suggesting
Csound. I ran the code "dry" on my system and it worked.

On their system the code failed with the failure below. The options they
used were:
-+rtaudio=jack -b 1024 -B 3072
sr = 44100
ksmps = 32 ; tried 12
They also tried ksmps = 4 with -B 2048
They have JACK running through pipewire. The JACK options from ~/.jackrc
report:
-p 1024 -n 2
If it makes any difference: nchnls were set to 6.
Here's the output from Csound:
UnifiedCSD:  organ_mixer.csd
rtaudio: JACK module enabled
instr Mixer uses instrument number 1
sorting score ...
      ... done
--Csound version 6.18 (double samples) 2022-11-24
[commit: none]
libsndfile-1.2.0
displays suppressed
sr = 44100.0, kr = 1378.125, ksmps = 32
0dBFS level = 1.0, A4 tuning = 440.0
orch now loaded
audio buffered in 1024 sample-frame blocks
reading 12288-byte blks of shorts from adc:GrandOrgueAudio:out (RAW)
system sr: 44100.000000
*** stack smashing detected ***: terminated

csound command: Aborted
...

Does anyone have a suggestion? Could it be pipewire? Did I misunderstand
the requirements for the options -b and -B? Is there another setting
perhaps?

Best wishes and thanks for any hints,

Jeanette

-- 
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Hi Tarmo!
Oct 20 2023, Tarmo Johannes has written:

> What if you don't add -b and -B and let Csound choose the dafault?
...
They tried and I should have mentioned it. This happens:
rtjack: buffer size (-B) is too small

I'm clueless what to do next...

Best wishes,

Jeanette

-- 
  * Website: http://juliencoder.de - for summer is a state of sound
  * Youtube: https://www.youtube.com/channel/UCMS4rfGrTwz8W7jhC1Jnv7g
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  * GitHub: https://github.com/jeanette-c

We still move to a rhythm just like this
We still dream of sharing our first kiss <3
(Britney Spears)

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the -B looks suspicious to me in the line
-b 1024 -B 3072

i'd try
-b 1024 -B 4092

or
-b 1024 -B 1024

and instead of nchnls=6 i'd try nchnls=8

On 20/10/2023 19:47, Jeanette C. wrote:
> -b 1024 -B 3072

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Hi Joachim,
thanks for your reply. We might try this. Happily, the code runs properly on 
the intended performance system. Sstill, one doesn't always have access to 
that. So we'll try the adaptation.

Best wishes,

Jeanette

Oct 21 2023, joachim heintz has written:

> the -B looks suspicious to me in the line
> -b 1024 -B 3072
>
> i'd try
> -b 1024 -B 4092
>
> or
> -b 1024 -B 1024
>
> and instead of nchnls=6 i'd try nchnls=8
>
> On 20/10/2023 19:47, Jeanette C. wrote:
>>  -b 1024 -B 3072
>
> Csound mailing list
> Csound@listserv.heanet.ie
> https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND
> Send bugs reports to
>       https://github.com/csound/csound/issues
> Discussions of bugs and features can be posted here
>
>

-- 
  * Website: http://juliencoder.de - for summer is a state of sound
  * Youtube: https://www.youtube.com/channel/UCMS4rfGrTwz8W7jhC1Jnv7g
  * Audiobombs: https://www.audiobombs.com/users/jeanette_c
  * GitHub: https://github.com/jeanette-c

You know I'm one of a kind,
There'll never be another me <3
(Britney Spears)

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good luck ...
btw there was a typo in my suggested numbers; i meant
-b 1024 -B 4096 (not 4092)


On 21/10/2023 22:32, Jeanette C. wrote:
> -b 1024 -B 4092

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