Voices/Dialogues not heard with AudioUnit

kingslay / KSPlayer

A video player for iOS、macOS、tvOS、visionOS , based on AVPlayer and FFmpeg, support the horizontal, vertical screen. support adjust volume, brightness and seek by slide, SwiftUI, support subtitles.

https://apps.apple.com/app/tracyplayer/id6450770064

GNU General Public License v3.0

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Voices/Dialogues not heard with AudioUnit #698

Closed cdguy closed 9 months ago

cdguy commented 9 months ago

This one is very easy to replicate:

1- open a content that has multi-channel audio from any device (ios/ipados/tvos) and make sure that AudioUnit is used 2- output the sound to a Bluetooth sound device that does not support spatial audio 3- you will see that dialogues are not heard

cdguy commented 9 months ago

@kingslay I tried almost all builds that have AudioUnit; and I have to say that this sound issue using AudioUnit is always there

you can also replicate like this if you have any apple bluetooth sound device that supports Spatial Audio:

When you open any stream (ios/ipadOS) with AudioUnit, from the control center -> Volume;
disable spatial audio and play a multi-channel audio VOD

UnknownCoder807 commented 9 months ago

This is an issue many users of my app have started to report to me. It will affect other apps too who use the latest ksplayer code base.