Hydrogenaudio Forums > Best LC-AAC for 5.1 Multichannel

Full Version: Best LC-AAC for 5.1 Multichannel

Hydrogenaudio Forums > Lossy Audio Compression > AAC > AAC - General

lifers5555

Jul 30 2007, 04:28

Heya Folk,

I've been using Nero on my 2ch AC3 to trancode to MP4 at Q 0.4 with fantastic results.

I have a great deal of 5.1 to do as well, and when I scale up the channels the nero codec doesn't perform very well in comparison to WMA 10 Pro or the origional AC3 - in fact Nero often bloats the file larger than AC3.

Been having a chat with Mauddib who says Nero have not yet optimised their codec for multichannel.

Anyone got any suggestions for an excelent LC-AAC codec, with VBR by Quality settings that is better tuned for multichannel content?

Thanks,

Dom.

JensRex

Jul 30 2007, 13:07

Just out of curiousity, why are you transcoding 5.1 AC3?

lifers5555

Jul 31 2007, 02:24

Because (AKAIK) you can't stick AC3 into a valid MP4 file and for stereo, the bitrate efficiency is well worth it.

lifers5555

Aug 9 2007, 03:48

I'll take the defening silence as a resounding no : )

Junon

Aug 9 2007, 04:24

QUOTE(lifers5555 @ Aug 9 2007, 11:48)

I'll take the defening silence as a resounding no : )

http://en.wikipedia.org/wiki/Mp4#Data_streams says no as well.

menno

Aug 9 2007, 04:54

QUOTE(lifers5555 @ Jul 31 2007, 10:24)

Because (AKAIK) you can't stick AC3 into a valid MP4 file and for stereo, the bitrate efficiency is well worth it.

With Nero Recode this should be possible soon. You can read more about it on doom9

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