Hi! there!

I'm trying to build a JUCE library for csound that will handle audio processing and parameters update. A use case if the user wants to write custom UI and integrate the Csound code.

Here is a source code for this: https://github.com/anton-k/csound-for-juce/tree/simplify-csd-bug-fix

The synthesizer case with no audio input works fine and it's solid with various DAW life cycles. 
But the FX plugin misbehaves and I'm kinda stuck. So asking for help.
The problem that I get is that csound->PerfromKsmps() exits early. 

Although I define a long running score here:  https://github.com/anton-k/csound-for-juce/blob/simplify-csd-bug-fix/examples/reverb/src/csd/reverb.csd#L35
It exits after approx 200 csound performance runs.

I've checked with logs that spin and my internal buffers are properly set up. 
I can see with logs that the processing function works well. I can see that audio buffer exchange between DAw and Csound are in proper sync: https://github.com/anton-k/csound-for-juce/blob/simplify-csd-bug-fix/src/juce_csd/audio/Processor.cpp#L185

Here is how I setup the Csound: https://github.com/anton-k/csound-for-juce/blob/simplify-csd-bug-fix/src/csd_plugin/audio/Processor.cpp#L232

I'm running: CSOUND VERSION: 7 "Sep  9" 2026 7.0
Also I've tried the April 2026 version of the API.

I've tried various flags. But Csound seems to exit early after several (~200) runs. 
Sometimes it also starts and works for FX plugin. The ratio is 3/1 for failure to run. 
For the synth plugin it works and runs 100%.

By logs I can see that processing is not interrupted with initialization calls prepareToPlay/releaseResources. It just runs the process block and suddenly crashes. 

Do you have any clues why this can happen? What can cause such behaviour? 

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

Hi! there!

I'm trying to build a JUCE library for csound that will handle audio processing and parameters update. A use case if the user wants to write custom UI and integrate the Csound code.

Here is a source code for this: https://github.com/anton-k/csound-for-juce/tree/simplify-csd-bug-fix

The synthesizer case with no audio input works fine and it's solid with various DAW life cycles. 
But the FX plugin misbehaves and I'm kinda stuck. So asking for help.
The problem that I get is that csound->PerfromKsmps() exits early. 

Although I define a long running score here:  https://github.com/anton-k/csound-for-juce/blob/simplify-csd-bug-fix/examples/reverb/src/csd/reverb.csd#L35
It exits after approx 200 csound performance runs.

I've checked with logs that spin and my internal buffers are properly set up. 
I can see with logs that the processing function works well. I can see that audio buffer exchange between DAw and Csound are in proper sync: https://github.com/anton-k/csound-for-juce/blob/simplify-csd-bug-fix/src/juce_csd/audio/Processor.cpp#L185

Here is how I setup the Csound: https://github.com/anton-k/csound-for-juce/blob/simplify-csd-bug-fix/src/csd_plugin/audio/Processor.cpp#L232

I'm running: CSOUND VERSION: 7 "Sep  9" 2026 7.0
Also I've tried the April 2026 version of the API.

I've tried various flags. But Csound seems to exit early after several (~200) runs. 
Sometimes it also starts and works for FX plugin. The ratio is 3/1 for failure to run. 
For the synth plugin it works and runs 100%.

By logs I can see that processing is not interrupted with initialization calls prepareToPlay/releaseResources. It just runs the process block and suddenly crashes. 

Do you have any clues why this can happen? What can cause such behaviour? 

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