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Old 2011-06-26, 20:35   Link #1
Ellsbury
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Join Date: Jun 2011
Character voices too low

Hey guys, I've been having issues with character voices being too low in certain files, off the top of my head Coalgirl's Evangelion 2.22. I have this problem both with Mplayer and MPC-HC. This is with headphones, I don't currently have any speakers. With Mplayer I set the default audio channels to 2(Stereo). With MPC-HC I set the ffdshow audio decoder mixer output to 2/0/0 - stereo, yet the problem persists with both players. Am I missing something obvious? This is driving me absolutely crazy. Any help would be appreciated.

Last edited by Ellsbury; 2011-06-26 at 22:02.
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Old 2011-06-27, 11:14   Link #2
TheFluff
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Join Date: Dec 2005
Location: ISDB-T
Age: 28
Coalgirls Eva 2.22 uses 6.1 FLAC. FLAC doesn't have well-defined channel mappings for streams with more than six channels. ffdshow decodes it with an incorrect channel mapping, as does everything else that is based on libavcodec. Last time I tried it, it only got the back channels and the LFE wrong, but I guess it might be the same problem here.

It's possible to fix this with some creative use of the channel remapping filter in ffdshow, but last time I tried it, it didn't seem possible to get a correct mapping and a downmixing to stereo at the same time, so you had to add an extra instance of the ffdshow audio processor filter to the graph manually in order to first remap and then downmix.

See also http://mod16.org/hurfdurf/?p=184
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17:43:13 <~deculture> Also, TheFluff, you are so fucking slowpoke.jpg that people think we dropped the DVD's.
17:43:16 <~deculture> nice job, fag!

01:04:41 < Plorkyeran> it was annoying to typeset so it should be annoying to read
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Old 2011-06-29, 00:41   Link #3
Ellsbury
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Join Date: Jun 2011
Thanks for the info, I didn't realize 6.1 had that issue. I think I'll just go with Thora's version then. I thought the dual audio might be cool to have, but it's not really a big deal.
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Old 2011-07-06, 17:02   Link #4
TheFluff
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Quote:
Originally Posted by Ellsbury View Post
Thanks for the info, I didn't realize 6.1 had that issue. I think I'll just go with Thora's version then. I thought the dual audio might be cool to have, but it's not really a big deal.
6.1 in general should not have issues, it's just 6.1 encoded with FLAC that has problems.
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17:43:13 <~deculture> Also, TheFluff, you are so fucking slowpoke.jpg that people think we dropped the DVD's.
17:43:16 <~deculture> nice job, fag!

01:04:41 < Plorkyeran> it was annoying to typeset so it should be annoying to read
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