Windows 10 Stops Recieving Input From ASIO Device

I found a workable way around this problem -- in the Sound Control Panel for the Model 12 recording device on the Advanced tab, if I change the Default Format from "2 channel, 24 bit, 48000 Hz (Studio Quality)" to "12 channel, 24 bit, 48000 Hz (Studio Quality)" it starts working immediately. Whatever is going to the Stereo Mix on the Model 12 shows up on in the Sound Control Panel meters and applications like Zoom, Teams and Discord can use the Model 12 as an input.  Oddly enough, Voice Recorder stops working -- it fails with "Your microphone is not working" but I can live with that. Note that the option for 12 channels is not available until after installing the drivers from TASCAM.

FYI, I also sent the following to TASCAM support but have not heard back from them:

The Model 12 shows up as both a input (mic) and output (speaker) devices when connected via USB. The speaker function works as expected-audio from Windows can be routed to channels 1&2 on the M12, however the mic function does not. Audio from the M12 is not sent back to Windows, even in stereo mix mode to outputs 1&2. Windows apps like Voice Recorder, Zoom or sound control panel do not see any input from the M12. Same behavior either before or after installing the TASCAM drivers.

ASIO works as expected and interestingly, launching a application using the ASIO interface like Reaper causes the Windows input to start working as long as Reaper is in the foreground. Reaper is minimized or I switch to another window, the mic stops working, then works again if Reapers is back in the foreground. Arming any track on in Reaper or playing any audio, even silence, to the M12, the mic input in Windows also continues to work.

It's almost as if the USB output of the M12 goes to sleep and stops communicating to the Windows audio interface and having any active ASIO application wakes it up. The behavior is very repeatable and I have reproduced it on a total of 4 different Windows 10 computers ranging from 1909 to 20H2 to 21H2. One of which has other audio applications on it, another is a clean system with just bare-bones Windows 10.

In comparison, my iXR works perfectly after installing its drivers on a computer -- both input and output to/from Windows applications works without having to launch any ASIO applications to get it to start sending audio back to Windows.

The M12 came with firmware 1.22 and I even tried reinstalling 1.22 to make sure it was correctly installed, but that made no difference. It does not seem like I can downgrade the firmware to 1.21. In Device Manager, it shows the TEAC Corp driver 1/10/2020 15.43.39.95 under the Sound, video and game controllers section and the Microsoft driver 12/6/2019 10.0.19041.1 in the Audio inputs and output section.

Thanks for reporting back on your progress, Alan.

Keep us posted on your progress, which will help others searching for this issue.

I tried TASCAM phone support -- they were helpful in making sure I had the Model 12 configured right and that audio was going to the master mix and set to send the stereo mix to outputs 1&2 but it seems like the Model 12 itself is working okay since it communicates with my DAW and other ASIO-based programs. Thanks for the links -- I'll definitely try posting the same question to the TASCAM forum as it's probably a combination of how the driver is configured and Windows audio, not purely a TASCAM only issue. It would be helpful to find other users with similar setups and verify how theirs is or isn't working compared to mine.

Interestingly the when launching the ModelMixer control panel for the first time it says something about being verified to work with 1909 but unfortunately I've kept all of my computers up to date and don't have anything still on 1909 to try a comparison test with.

I'll post updates if I make any progress in case it can help anyone else with the same issue.

Thanks,

Alan

HI Alan. I'm Greg, 10 years awarded Windows MVP, specializing in Installation, Performance, Troubleshooting and Activation, here to help you.

Have you contacted Tascam Support which is included for the first year, during which under law they must get it working properly or replace it?
Go here: https://tascam.com/us/support/contact/product/t...

They also have a User forums here: https://www.tascamforums.com/

You will also get better help for this in an audio enthusiasts forums than in a general Windows forums where audio specialization isn't emphasized. Here are the best forums for the audio enthusiasts who will know these issues:

https://audiofederation.com/catalog/links/index...

https://www.whatsbestforum.com/forums/

https://www.kitchenknifeforums.com/threads/what...

https://www.avsforum.com/forums/

https://www.stereophile.com/forum

Hopefully one of those helps. If not I may have other suggestions. I will be here to help until this case is resolved.

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