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FAAC and mono files, how to create one?
echo
post May 1 2005, 23:04
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I've been trying to create a mono AAC file with FAAC but I always end up with a stereo encoded file. Is it possible to create mono files with FAAC? I've tried feeding it mono wav files but it always turns out stereo and I can't seem to find a switch for mono encoding with --help. Any ideas?
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iehova
post May 1 2005, 23:14
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the chance, that your encoded files indeed are "mono" is quite good

FAAD based players just decode them as "stereo"


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Friends don't let friends use lossy codecs. (char0n)
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yong
post May 2 2005, 02:44
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Use fb2k player "Downmix channels to mono" DSP cool.gif


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Garf
post May 2 2005, 08:46
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The files are probably indeed mono. FAAD2 based players (almost all of them) decode any mono file as stereo. This is so that the players using it will correctly handle HE-AAC v2 without any special changes.
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echo
post May 2 2005, 11:17
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Thanks guys. smile.gif
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Mats Peterson
post Apr 1 2013, 11:22
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QUOTE (echo @ May 1 2005, 17:04) *
I've been trying to create a mono AAC file with FAAC but I always end up with a stereo encoded file. Is it possible to create mono files with FAAC? I've tried feeding it mono wav files but it always turns out stereo and I can't seem to find a switch for mono encoding with --help. Any ideas?


The fact is that it's FAAC itself that puts a "2" for stereo in the 'stsd' sample description atom, even for mono files. Don't ask me why. Nero's encoder does not do it. You would have to parse the 'esds' atom to get the "real" number of channels.

This post has been edited by Mats Peterson: Apr 1 2013, 11:23
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Kamedo2
post Nov 10 2013, 04:56
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If you have trouble using FAAC, using other encoders that have better quality, such as these, may help:

http://listening-tests.hydrogenaudio.org/i...-96-a/index.htm
http://www.hydrogenaudio.org/forums/index....howtopic=102876
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