Hi,
I find a popular thread here regarding 48kbps AAC encoder listening comparison.
http://www.hydrogenaudio.org/forums/index....showtopic=39731

However I can not find any testing result or summary of this activity. Anyone can tell me where to go for the conclusion?

Thanks.

Follow up of that thread are these results: http://www.mp3-tech.org/tests/aac_48/results.html
and also maybe these: http://www.listening-tests.info/mf-48-1/results.htm