Public Multiformat Listening Test @ ~64 kbps [2011] AAC, CELT, Vorbis

vbimport

#1

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 1.5.4 HE-AAC
Apple QuickTime 7.6.9 HE-AAC
Ogg Vorbis AoTuV 6.02 Beta
CELT 0.11.2

Public Multiformat Listening Test @ ~64 kbps [March 2011]

Well, have fun! :rolleyes:

Note: Important workaround was made. It is not uncommon to see that some soundcards have isues with not 48 kHz sample rates. Aslo until moment CELT is optimized for 48 kHz while other codecs are well tested at 44.1 kHz. To avoid these limitations all decoded files (Vorbis and Nero, Apple HE-AAC) were resampled with very highly transparent resampler SOX VHQ while CELT files were directly encoded from the resampled source. The resampling hadn’t impact on final results.

Even the single result is helpful. :slight_smile:


#2

This kind of looks like a spam post, but i can hear artifacts even with the highest bitrate MP3! FLAC however, I can’t hear any artifacts, I’m autistic, so I can hear a lot of things that a lot of others can’t!


#3

[QUOTE=RCM;2580912]so I can hear a lot of things that a lot of others can’t![/QUOTE]
Automatic spam answer:
Modern codecs can do quite good job at 64 kbps.


#4

This thread isn’t Spam. IgorC is involved in these forums:


http://www.hydrogenaudio.org/forums/index.php?showtopic=87576
and is one of those unsung heroes who help create better and opensource codecs for you and me.


#5

[QUOTE=IgorC;2580918]Automatic spam answer:
Modern codecs can do quite good job at 64 kbps.[/QUOTE]
I know, but I can still hear the artifacts

[QUOTE=olyteddy;2580947]This thread isn’t Spam. IgorC is involved in these forums:


http://www.hydrogenaudio.org/forums/index.php?showtopic=87576
and is one of those unsung heroes who help create better and opensource codecs for you and me.[/QUOTE]
Thanks for the info! glad to have someone who is involved with open source software around! :smiley:


#6

The idea of this test is to help to development of the codecs.
There are new codecs and quality is actually quite good.
64 kbps is very suitable for streaming and real time scenarios.


#7

[B]The test is extended until the 10th of April.[/B]
It will be better to have more results for samples 11 and 14-30 (14,15…29,30) and results for other samples are welcome as well.


#8

The test is finished.
The results will be soon.