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5th January 2013, 21:11 | #1 | Link |
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Add DialNorm to AC3
I want to add dialog normalization to a ac3. As I understand I have to use aften to add the dialnorm to a AC3.
I found several versions of aften: 1- Soucreforge (2007-12-04) => http://sourceforge.net/projects/win32builds/files/Aften%20%28A_52%20Audio%20Encoder%29/ 2- wavtoac3encoder aften-git (2009-12-26)=> http://code.google.com/p/wavtoac3encoder/downloads/detail?name=aften-git-20091226-icl11_1_054-win32-bin.zip&can=2&q= Which version of aften is the best to use or are there better builds to find? greetz |
5th January 2013, 22:35 | #3 | Link | |
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Quote:
Is ffmpeg a better application to create an ac3 with dialnorm ? It's only for adding the dialnorm to the ac3 not for determining the dialnorm. Last edited by heerschop; 6th January 2013 at 00:15. |
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14th January 2013, 04:43 | #4 | Link | |
interlace this!
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Quote:
soft encode is woefully old, slow and the only reason to use it would be for the DRC that aften (and it's successor that is merged into ffmpeg) doesn't implement. quality at important bitrates (192, 224 and 384-448 for 6ch audio) has been very good for years now. short blocks and channel coupling have improved matters too. try the ac3 encoding built into ffmpeg before making unsubstantiated claims.
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14th January 2013, 12:58 | #5 | Link |
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To answer the heerschop question, the best Aften version is the last aften-git-20091226-icl11_1_054-win32-bin.zip, and don't know new exe versions after this.
If you want change DialNorm to an AC3 file, you can try Change_dn.exe from here: http://forum.doom9.org/showthread.php?p=1493146#post1493146 @Mug Funky I know than ffmpeg AC3 encode have some improvments (also Stereo mid/side rematrixing) over Aften, but I don't know how to pass to ffmpeg Aften parameters like -dnorm. Other Aften parameters than can be usefull was: -readtoeof 1 -pad 0 -dsur 2 -xbsi2 1 -dsurexmod 2 Other problem with ffmpeg was the sample precission between included decoders-encoders. Last time I analyzed was limited to 16 bit. Can now ffmpeg send 24 bit samples to AC3 encoder if source is, for instance, a TrueHD/FLAC with 24 bit?
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14th January 2013, 14:53 | #6 | Link |
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I thought:
Code:
[-dynrng #] Dynamic Range Compression profile 0 = Film Light 1 = Film Standard 2 = Music Light 3 = Music Standard 4 = Speech 5 = None (default) would add drc when encoding with aften,... |
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