Example:

FLAC: Sample Rate, Channels, Sample Size, Compression Level

Vorbis: Same as FLAC. new option: method: Quality or Bitrate

AAC: Type: AAC, AAC+ Version 1/2. Bitrate: CBR/VBR/Long-Term Average Bitrate/VBR (Constrained). (Audio Quality: From low to high). Bitrate: Up to 512 kbps.