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Airplay - How to get the best audio quality ?
#1
Hello,

I'm looking to apply the best setup on two Raspberry Pi working as Airplay receiver:
- HiFiBerry DAC+ Pro
- Integrated soundcard

Does anyone know if it's possible to change any parameters to get a better quality ?

Best regards
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#2
You could upsample in the Pi, its fairly easy to experiment.

That said, the Apple signal is fixed at 44.1 / 16. Curiously enough, if you are sending the stream to an Apple TV, it will upsample it to 48.

I, for one, think that the default non-resampled setting sounds best. But then, I am a seeker of BitPerfect. Other's have found success upsampling in the Pi.
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#3
Most dacs oversample internally so the idea is that if the algorithm or process by which that happens isn’t very good you can achieve better results doing it yourself with a known good resampler (like sox) and passing that stream to the dac where it might not manipulate it further.
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