Mastering for Digital Music

Modified on 2017/12/04 17:38 by Mark — Categorized as: AAC, Mastering, Mixing, MP3

Tips to improve encoded sound quality

Master at -2 dBFS

Mastering lower than -.1 dB provides some headroom for the codec to do it's work.
Audio encoders tend to output hotter than the source, leaving a little bit of headroom can prevent clipping when the audio is encoded. Søren H. Nielsen and Thomas Lund wrote a great paper detailing the Overload in Signal Conversion problem.

Roll off a little of the top end (16K+)

Rolling off the top end serves two purposes:

See also