Copyright 2004 Ken Greenebaum
MP3 refinements
nMP3 uses a
Modified Discrete Cosine Transformation
(MDCT)
nBetter
frequency resolution
nPoorer
time resolution
nErrors
spread over longer time
n(Leads
to pre-echo phenomena)
nIdentify and
better code conditions that led to pre-echo
nTemporarily
increases number of quantization levels