Hi,

I'm setting up an installation using 6 speakers — two of them split left and right — for a total of 8 audio channels. I have an issue with multichannel sound output in Isadora. 

I'm working on a Mac M1 Max running Ventura, and Isadora 3 (latest version). My sound interface is a MOTU UltraLite MK3, which has 10 analog output channels. In the Audio/MIDI settings, all speakers are correctly recognised and output sound as expected. Reaper also routes sound to all channels without issues. 

In Isadora, I get a yellow warning stating that the interface only supports 2 channels, which isn’t accurate — the system itself detects all outputs. Isadora only allows me to select 2 channels for output. I tried the sound player, AU Player and Movie Player.

Is there a way to enable multichannel audio output in Isadora with this setup? I thought it should be possible, but since the software doesn't seem to recognize the full range of my interface, I’m unsure how to proceed.

Any help would be greatly appreciated — the opening is this Friday, so it’s quite urgent.

Thanks in advance!

@gaspar said:

I might try installing ISADORA 4 and see what happens.

 4 includes a fix or two that address a stage freeze that was occurring on Windows in specific cases, so it may help.

@dusx Thanks for coming back to me.

So The PhysX is set to the NVIDIA.

The stage is sent to a 4K Dell monitor, which seems to be the only one seen by the  NVIDIA GPU. The integrated laptop screen is not listed. I also set ISADORA to use the NVIDIA card in the general windows settings.

I've also detected other issues.

I have a slightly intensive 6" transition (that works fine on my old 2070). It involves a 3D object being displayed on both scenes, different, not very intensive shaders, one at each scene, as well as 3D particles on the second one. More often than not the stage freezes during this transition, even without switching to any other application.

I'm leaving today for the Gig and I'm not taking the new computer with me. But saturday night I'll be back. If there's any test you want me to try, just tell me and I'll  be happy to do so.

I guess it is indeed related to the handling of the graphic cards rather than an ISADORA issue. I tried disabling the Intel graphic card but it dit not help. I then uninstalled it. For some reason Isadora refused to start after that, saying that it only had OPEN GL 1.1. I reinstalled the NVIDIA drivers... but the intel card was also installed automatically installed at startup.Did not insist any further.

I might try installing ISADORA 4 and see what happens.

Cheers

i used this keyboards as a button can be reprogrammed as a midi device with the arduino ide

https://www.berrybase.de/en/wa...

Nice project. Glad it was a success.

@dbini

very nice!

@gaspar

Since dedicated VS internal gpus can be a little tricky to figure out (each vendor deals with these a little differently) I will need a little more information.
note: I am running windows 11 on a Lenovo Legion

Which display are you running Isadora on?
Which display is your stage on?
How do these compare to your nVidia Control panels display of connection on the PhysX section?

This is mine:

Note: I have two connections that run through the RTX gpu, while the other listed is connected through my integrated gpu.
To further complicate things, my Laptop display (not listed here) connects directly to my integrated gpu.

Does your Lenovo have 'Lenovo Vantage'?
And if so in the Gaming section (my UI just changed, so maybe this won't match) can you change your GPU working mode?
Mine provides: Hybrid, Hybrid-iGPU, Hybrid-Auto, and dGPU
For general working I use Hybrid-Auto (uses both cards), but for shows I use dGPU (dedicated gpu only)

If I can understand your setup, I can try to reproduce the issue you are having, and hopefully find a solution.

@gaspar said:

 Ouch.... just saw my reply is off. You intended to track everything as one blob... and you solved it.

My bad.

Looks great by the way.

Could it be that you're missing something very simple?

You should define the maximum amount of objects to track (second input of the Eyes++ actor). Then Eyes(++) will look for more objects.

You might face a different problem if the objects are close together, but you can play with the other parameters to catch those things up.

I hope this helped,

Cheers

I'm still on Isadora 3 and in the process of migrating to a new computer.

I was/am on the computer at my signature, running w10. The actual one is running w11, has about the same specs but has a NVIDIA GeForce RTX 4060 Laptop GPU instead of the 2070, and it runs on an i9 processor. And unlike the "old" computer, this one has also an intel UHD graphics card. (It is the Lenovo ThinkBook 16p G5 IRX)

As good as it sounds, I feel the old one worked slightly better.

TO THE ACTUAL ISSUE.

When Isadora is running and stage output is on, it works fine. Sometimes complicated transitions get a bit messy, can't reproduce it accuratelu now.

But if I open a different program, the stage output freezes... It unfreezes if I click on the stage output, but as soon as I get back to the "other program" can be notepad, browser or whatever, the stage shows the frozen frame of the first time I opened that other program.

Does anyone have a clue or better solution to this?

I've set the computer to use only the 4060 on Isadora, but it does not solve the issue.

Thanks...

I'm on a GIG next weekend, but I'll probably take the old one (which has several connector issues, but Isadora runs fine).