Greetings!!!
There has been significant advancement since the last 64kbps test. The Nero HE-AAC and Aoyumi Vorbis encoders improved, Apple added HE-AAC capability, and we have a new low delay codec with high quality: CELT.
The following codecs are presented in this test:
Nero HE-AAC
Apple HE-AAC
Ogg Vorbis 2011 (AoTuV 6.02b)
CELT 2011
Public listening test
Even the single result is helpful