Universal Windows Platform (UWP)
A Microsoft platform for building and publishing apps for Windows desktop devices.
2,874 questions
Cpp/WinRT Audio Stream Routing
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Utkarsh Bhatt
1
Reputation point
Hey, I was working on a project where I have to pick an Audio Stream (say the Audio from a YT video running in chrome or from a Game that I am playing) and feed it into my Audio Processing Code without disturbing the Audio being played on a Hardware Device (say a speaker or a Headset). From what I have been able to understand I'll have to use Windows.Media.Stream along with Windows.Media.Audio (Input and Output nodes). I.E. an audio mixer kind of setup where the original stream is being put out to 1.) The original Audio Output Device and 2.) My Audio Processing Code. I am well versed with Cpp but new to Windows Development. Can anyone help?
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Fay Wang - MSFT 5,196 Reputation points2020-06-29T05:02:08.87+00:00 Do you mean when you get the audio stream, you want to play it by Device and process it in your Audio Processing Code? May I know what is your Audio Processing Code? Can you provide more details about your expected behavior? In addition, for more details about Input and Output nodes, you can refer to this document.
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Utkarsh Bhatt 1 Reputation point
2020-06-29T14:30:04.897+00:00 Hello @FayWang-MSFT, Yeah... So suppose I am playing a VLC video so I want to be able to listen to the Audio and at the same time be able to Input the audio stream to my Audio Processing Code. The ASP is a set of basic LPF and Downsampler which then feeds the same to our USB H/W device (While the original signal is being sent to the speaker unaffected) which we're designing. Can you mention the API's, corresponding Sample code required ?
Regards,
Utkarsh Bhatt -
Fay Wang - MSFT 5,196 Reputation points
2020-06-30T08:45:20.857+00:00 May I know how you pick an Audio Stream and how you handle it in your Audio Processing Code? In addition, you could try to use device output node which will push audio from the graph to an audio render device(e.g. speakers or a headset), for more details about it, you can refer to this official sample which is in c#.
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Utkarsh Bhatt 1 Reputation point
2020-07-03T18:29:10.7+00:00 Thats exactly What I am asking. How do I pick Audio Stream. I am not able to pick out the API's that may allow me to select Audio Streams.
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