I want to play a soundfile when my app is sent to the background or when the phone is sent to sleep mode.
For this we use AVFoundation/AVAudioplayer together with the Backgroundmode Audio.
This is working fine so far and it does what it should.
The problem is, even though my soundfile is completly silent (observed with Audacity), I can hear a annoying noise (something like that: https://youtu.be/2P87NS63K94) when the device volume is turned all up. The file is in .aiff-Format.
Is there any way to avoid this noise?
Play silent backround sound without any noise - Swift/Xcode
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