how do i set output of submix voice in XAudio2? (metro)
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20-06-2021 - |
Frage
I tried using the SetOutputVoices function, and the constructor parameter, but both result in a XAUDIO2_E_INVALID_CALL as the result when used on a submix voice.
the docs say that you get that error by calling it from an audio callback, but i'm not. i have even tried calling it before starting the audio engine.
the same method works for source voices, so i'm pretty sure i'm not passing a bad XAUDIO2_VOICE_SENDS structure.
Lösung
Submix voices have a processing order, specified by the processingStage parameter in IXaudio2.CreateSubmixVoice
You can only send output to a submix voice with a lower processing stage. and i had all of my submixes at the default processing stage (0).
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