ios - VoiceProcessingIO while using AVPlayer -


i'm working on application has unusual requirements.

we're trying record sound microphone while playing video file user. worked great using avcapturesession record microphone , avplayer play video - except capture session recorded video sound , got terrible feedback/echo.

we next tried use remoteio voiceprocessingio subtype record audio , suppress echo. worked great - except there no sound coming avplayer.

is possible use audiounit record sound while playing video (with sound) on avplayer , cancel echo?

nb: did find this question has contradicting answers.


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