[BUG] audio quality indicator shows wrong output channel count if using external audio output device

[nift4]

Describe the bug
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To Reproduce
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2. Click on '....'
3. Scroll down to '....'
4. See error

Expected behavior
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Smartphone (please complete the following information):

• Device: [e.g. iPhone6]
• OS: [e.g. iOS8.1]
• App Version: [e.g. 22]

Additional context
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• I will open one issue per bug, follow the issue format and will add [BUG] to the start of my issue title, and I acknowledge that if I don't follow the format, my issue might get closed without further explanation.