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When using a Creative SoundBlaster Z Series card, FMOD Designer can use the ASIO output mode, but FMOD Studio fails.
In the Audio Preferences when selecting the ASIO output device (Creative SBZ Series ASIO) the following message appears:
“Unable to initialize the selected device. No sound will be produced. Please select another configuration.”
Any ideas why this used to work but doesn’t in the latest version?

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Hi Alain,

When you are trying to initialize ASIO with FMOD Studio, please ensure no other software is using the same ASIO output. This can be a DAW, FMOD Designer, or another FMOD Studio project that is open.

Let me know if you’re still having trouble initializing your audio device.

Thanks,
Richard

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Hi Richard,

Those two console messages were a big clue!

If I tick the box to ‘Force DSP buffer block size to X samples’ and set it to 384 ASIO now works properly in FMOD Studio.

Furthermore setting:

buffer_length=384
num_buffers=2

In our application’s FMOD ini file also works!

Thanks for the pointers.

Best regards,

Alain

  • Richard Simms

    Hi Alain,

    Thanks for the update. I’m very happy to hear you’ve managed to resolve this problem. Let me know if you experience any other problem.

    Thanks,
    Richard

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We’ve just tried this on a Fireface UCX only to encounter exactly the same issue. Again in FMOD Designer it works fine but FMOD Studio fails in ASIO mode.

We also tried an M-Audio Super DAC, this works perfectly with FMOD Studio in ASIO mode.

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Hi Richard,

Thanks for getting back to me.

There’s no other software using the ASIO device, as evidenced by it working with FMOD Designer and the FMOD Designer API.

There are also other ASIO devices on the system which do not suffer this problem (such as an M-Audio Super DAC).

I’ve tried disabling all other audio devices except the SoundBlaster Z but the problem still occurs.

Also this problem is not limited to a single system, it was first noticed by a customer and has been replicated on every Win10 PC we’ve tried that has a Soundblaster Z.

Presumably FMOD Studio should work just fine with the SoundBlaster Z ASIO, just like FMOD Designer does (did)?

Thanks,

Alain

  • Richard Simms

    Hi Alain,

    Could you try the following:

    1. Check to see if there are any errors in the Console (Window > Console > Logging). It might give an error regarding ASIO that we can use to diagnose further.
    2. Are you able to use ASIO4ALL to connect these devices to FMOD?

    Thanks,
    Richard

  • Richard Simms

    Hi Alain,

    Are you still experiencing issues when trying to use ASIO?

    Thanks,
    Richard

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Hi Richard,

Apologies for the delay is responding, I’ve been on vacation.

The console windows shows these two errors:

10:57:10 fmod_output_asio.cpp(308), OutputASIO::init(): Requested DSP buffer count of 4 is being forced to 2.
10:57:10 fmod_output_asio.cpp(362), OutputASIO::init(): DSP buffer size 1024 must be between 384 and 384 or a divisor of 384.

I’ve not tried ASIO4ALL yet, however as mentioned previously FMOD Designer works fine in ASIO, it’s just FMOD Studio that has this problem.

Thanks,

Ade

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