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How to capture audio on c++ UWP app with WASAPI? RRS feed

  • Question

  • I can't seem to find any tutorial on the internet for my question.
    All the simple guide is not suitable for UWP. For Example,
    To use WASAPI there are these steps

    • enumerate devices
    • capture audio
    • play (render) audio back

    But for enumerating a device, The client must call CoCreateInstance. But from my understanding this function is not support in UWP.

    So, I found This, UWP C++ using WASAPI, But I can't find any Enumerate part and this project is very complicate for me.
    It include a lot of other files (DeviceState.h, common.h)

    For me, a beginner for audio programming, this is like the hardest text book in my life.

    My question is how can I capture audio on c++ UWP app with WASAPI?
    If this question is too board, I will change my question to How to enumerate audio device in c++ UWP application?.
    And the reason why I use WASAPI is because I want to access the data stored in the Buffer.

    Friday, November 30, 2018 8:21 AM

All replies

  • Hello order88,

    Actually the following line: https://github.com/Microsoft/Windows-universal-samples/blob/master/Samples/WindowsAudioSession/cpp/Scenario1.xaml.cpp#L85 

    Already mentioned how you can enumerate the device, were you trying to find this?

    Best regards,

    Barry


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    Monday, December 3, 2018 8:12 AM