Is it possible to use multiple input devices? about flexasio HOT 3 CLOSED

I had problems when combining the input from certain interfaces

What kind of problems? Audio glitches are expected and unavoidable when using multiple audio devices backed by separate hardware, because these devices will often use different clocks, but ASIO can only support a single clock. This kind of issue will not be solved by FlexASIO.

I'm wondering, if FlexASIO is already supporting multiple input devices

Currently, no, it does not.

If multi device input is not yet supported, do you plan to implement this in the near future?

Perhaps. There is a special feature in PortAudio that makes this easy, but it's only available for the MME backend. If MME is good enough for you, that might be doable. Supporting other backends would be harder because that would require FlexASIO to manage multiple PortAudio streams at the same time and handle the fact that their streaming events will not be synchronized.

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What kind of problems?

Yes, audio glitches. But more severely also situations in which the PC was no longer reacting (it's been a while since I last tried, I'm not sure if I had a blue screen also). I cannot reproduce at the moment, need to get the audio interfaces together.

Perhaps. There is a special feature in PortAudio that makes this easy, but it's only available for the MME backend. If MME is good enough for you, that might be doable

I'm looking for a way to combine different audio interfaces that already come with an ASIO driver with low latency. And I need low latency for the combination of these interfaces as well (e.g. for live recording and monitoring of a band). Using MME seems not to be the solution.

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I'm looking for a way to combine different audio interfaces that already come with an ASIO driver with low latency. And I need low latency for the combination of these interfaces as well

That's a hard problem, I'm afraid. Even more so if you want glitch-free operation with hardware using different clocks (which implies on-the-fly sample rate conversion). I'm not saying it's impossible, but it requires a lot of work, and I don't have the time to dedicate to that.

If someone is interested in working on this, my suggestion would be to create a completely new "virtual" ASIO driver that is specialized in routing (e.g. it could instantiate multiple real ASIO drivers under the hood and orchestrate between them). I don't think this is in scope for FlexASIO due to the complexity it would create.

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