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+--- Thread: Airplay - How to get the best audio quality ? (/showthread.php?tid=225)
Airplay - How to get the best audio quality ? - agaufres - 06-04-2018
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
RE: Airplay - How to get the best audio quality ? - RafaPolit - 06-08-2018
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.
RE: Airplay - How to get the best audio quality ? - swizzle - 06-08-2018
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.
RE: Airplay - How to get the best audio quality ? - yannig - 10-25-2018
I prefer the sound via UPnP than Airplay.
Some guys said to me that the Squeezelite sound is even better (not tried yet).
RE: Airplay - How to get the best audio quality ? - DRONE7 - 10-25-2018
(06-08-2018, 07:33 PM)swizzle Wrote: 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.
You can even do the re-sampling externally and thus save the overhead using sox.
Plenty of AK4137 SRC boards....even a HAT for the PI.
Up-sampling to DSD256 and passing this to an Ess Sabre dac has advantages of bypassing the dac resampler and filters.
https://www.ebay.com/itm/ak4137-i2s-dsd-sample-rate-conversion-board-supports-pcm-dsd-interconversion-dop/273326549748?hash=item3fa3882af4
https://www.ebay.com/itm/Raspi-4137-Raspberry-Pi-Digital-Network-Player-Supports-32bit-384K-DSD256/273394252258?_trkparms=aid%3D888007%26algo%3DDISC.MBE%26ao%3D1%26asc%3D20131227121020%26meid%3D970644f388604231be765710c794ef23%26pid%3D100009%26rk%3D1%26rkt%3D1%26sd%3D273326549748%26itm%3D273394252258&_trksid=p2047675.c100009.m1982