Bug with virtual audio channels

General discussion about Gig Performer
1

I’m seeing (what seems to me to be) odd behaviour when using GP’s virtual audio channels.

I have an audio interface with 4 real inputs and 12 virtual inputs":

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I also have a GP mixer whose outputs are not connected to anything:

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but which is configured to send mono input 1 to outputs 7-8:

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Now, if I connect an audio player to input 1 on the mixer:

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then I see suddenly see input signal coming in from the virtual inputs 7,8 from the audio interface (see below the yellow wires indicating audio signal).

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If I change the mixer to output to pins 1-2:

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then the audio in on 7-8 stops. If I change it to 5-6:

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then I see the audio signal arriving on the audio interface at inputs 5-6:

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Question is: Why?? The mixer’s output is not wired to anything, and yet its audio is arriving on the virtual inputs of the audio interface. Is this a bug or have I somehow got something configured incorrectly? I’ve pondered if its somehow related to loopback on the audio interface, or is it simply a GP bug?

BTW, I might have a workaround for the problem. It seems that simply creating another (completely disconnected) 8 channel mixer seems to stop the weird (to me) routing (see pic):

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thanks,
mick

2

Does also coming in sound or are the connections only flashing?

3

Hi.
yes, the sound coming in on the virtual inputs is the sound being played in the streaming audio player.

4

The virtual inputs are not really intended for real use. They exist solely so that you can develop your gigfile when you’re not connected to an audio interface that has a sufficient number of audio ports. Without that concept, if you tried to save a gigfile when your really audio interface wasn’t available you would lose all the wiring connections

5

Yes, I am using virtual channels solely and exactly for that purpose, which is why this bug is so frustrating: audio being sent to a random mixer ends up magically/unexpectedly appearing on virtual inputs.

6

If you are on macOS, the solution is aggregate devices.
On Windows, you can try VB-Audio Matrix - #8 by edm11

7

Thanks. Just to clarify my understanding, do you mean aggregate devices including something like blackhole as part of aggregate, or is there an approach that does not require blackhole?

8

See here: MAC only: Aggregate Device instead Virtual Audio Channels