Audio
There are three factors when considering audio quality from a digital perspective:
- Bit Depth
- Sample Rate
- Bit Rate
For CD quality that would be:
- 16 Bit
- 44.1 KHz
- 1,411kbps
AirPlay Streaming
There are two standards, AirPlay 1 and AirPlay 2. AirPlay 1 is based off of AirTunes from 2004. AirTunes and AirPlay 1 allows multi-room streaming from iTunes but not from iOS (and iOS derivatives). AirPlay 2 allows for multi-room streaming from iOS devices.
File Formats
ALAC FLAC