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Question by TeamON · Oct 04, 2019 at 10:44 AM · audioprofiler

Profiler Audio (WASAPI) Feeder

Hello! Who can explain the meaning of this (Audio WASAPI Feeder) component to me and why does he consume so many resources? I have no sound sources in the scene.alt text

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avatar image vild · Oct 15, 2019 at 04:06 PM 0
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Just noticed the same, and found this post. I did some testing, that might point to possible answers, but I do not know for sure.

  • On PC, Unity 2019.2.8f1, no audio sources on configurations in project (default camera removed).

  • changing the system's sound output device to a non-wasapi device breaks "F$$anonymous$$OD", and the line "Audio (WASAPI) Feeder" dissapears in the profiler. Error message in log says: F$$anonymous$$OD failed to initialize the output device.: "Error initalizing output device."

  • In my test project, leaving out heavy code, my frames went from 10ms to 2ms, and so did the Audio (wasapi) feeder, leading me to belive that this feeder doesn't affect performance, but is a constant feed of any output audio to WASAPI driver. It will probably show as much ms as the total frame is.

  • disabling audio in project settings did not have any effect.

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Answer by TeamON · Oct 16, 2019 at 07:18 AM

Thanks @vild ! I already noticed that this does not affect performance

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