presentations/audiocodecs/slides/07-ac3.md

1.1 KiB

Dolby Digital

Doesn't stand for anything

  • Patented with royalties
  • Some software support


Dolby AC-3
  • Lossy
  • 16-bit sampling depth
  • Up to 48kHz sampling rate
  • Up to 5+1 audio channels
  • Up to 640 kbit/s*
Dolby Digital Plus
  • Lossy
  • 16-bit sampling depth
  • Up to 48kHz sampling rate
  • Up to 15+1 audio channels
  • Up to 6144 kbit/s
Dolby TrueHD
  • Lossless
  • 24-bit sampling depth
  • Up to 192kHz sampling rate
  • Up to 7+1 audio channels

Note: Now, I'm gonna briefly talk about Dolby Digital. I only mentioned this one and not its competitor, DTS, because you can actually use this one.

It's a proprietary format developed by Dolby, although it does have some software support. For instance, FFmpeg can both encode and decode AC-3 audio.

Commonly seen on BluRays Mention DTS

[comment]: # (!!!)