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Editorial Team
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Asked: 2026-05-22T02:16:14+00:00

I have a rather strange issue, I’m using Audio Units from CoreAudio to playback

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I have a rather strange issue, I’m using Audio Units from CoreAudio to playback sound, the sound it’s loud as it should be on iPhone3g and iPhone3gs, however it’s mild, soft (maybe half the volume) on iPhone4. Is smth different on iPhone4? I don’t specifically set the volume in code because I was happy with the volume on the other 2 devices. Please note that the tests were conducted with the volume knob at the same level on all devices, so that’s surely not the problem:D. Anyone got this before?

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1 Answer

  1. Editorial Team

    Are you setting an AudioSession category? The play-and-record session is very quiet unless you override the audio route. Also, know that some categories have their own volume, so setting the volume before your app is running may have no effect.

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