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2nd August 2012, 01:18 | #11742 | Link |
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With Lame you can specify the bitrate (CBR 128 Kb/s is the default) with:
CBR: lame -b 160 - new-file-created.mp3 VBR: lame -V 2 - new-file-created.mp3 With V (0 best .. 5 medium .. 9 low quality) With internal AC3 encoder (448 default for stereo, 640 for 5.1) you can use -192, -224, -256, -320, -384, -448, -512, -576 or -640 to specify your desired bitrate
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10th August 2012, 21:26 | #11747 | Link |
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The header of the DTS core contains a field "Source PCM resolution", which should indicate the bit depth of the original pcm files, before they where compressed with the DTS codec. Nevertheless, this value can be altered manually during / after the encoding, so it can be a fake value. And even if the source PCM really was 24bit PCM, this bit depth is likely to be almost lost, since the DTS core, as already said, is a lossy compression.
Therefore, if I would like to decode a DTS core to a lossless format like PCM or flac using eac3to, I would always use the "-down16" switch, since the additional size of a 24bit target file IMHO is wasted space on my HDD. C.U. Nanobot |
14th August 2012, 09:08 | #11748 | Link |
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Has anyone had issues extracting the Right eye channel from Despicable Me 3D? Every time I do it, I get an out of memory error.
Only the right eye, everything else extracts fine. It even does it if I try and extract it straight from the disc. |
19th August 2012, 18:53 | #11749 | Link |
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So, for 5.1 eac3to writes a 0x0000060F dwChannelMask, but MadFLAC ignores that and does 0x0000003F. I know madFLAC doesn't change all channel masks, because I have some that are odd and they still show through (0x00000107). Seeing that both things are by the same author, why 0x0000060F? 5.1 uses rear speakers, not side. The "S" when labeling "SR" or "SL" doesn't mean "side," it means "surround." Obviously the audio device needs the correct channel mask for mixing or whatever, so I think when eac3to deals with 5.1 it should do 0x0000003F.
Also, if I strip the header off of a WAV file and specify the input parameters, does it eac3to read the standard WAV channel ordering or does it assume some other funky (lpcm) ordering? Last edited by ramicio; 19th August 2012 at 18:55. |
20th August 2012, 11:09 | #11750 | Link | ||
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Quote:
Until XP SP2, if I remember well, only the channel mask 0x0000003F was defined by M$ like standard 5.1 (Surround channels -> Back channels BL-BR), but after XP SP2 the channel mask 0x0000060F was the preferred to 5.1 (Surround channels -> Side channels SL-SR), maintaining the old mask like valid 5.1 Then new soft, M$ compliant, must accept both mask like equivalent for 5.1, and old soft maybe can reject 0x0000060F. I recommended to madshi use always 0x0000003F, but ... Quote:
-override -little -6 -16 -48000 the channel order is assumed like WAV -override -big -6 -16 -48000 the channel order is assumed like PCM
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20th August 2012, 17:27 | #11751 | Link | |
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Quote:
Thank you |
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24th August 2012, 07:38 | #11752 | Link | |
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Hi there, getting a problem with two RAW\PCM 2.0 24bit 96khz tracks on "Beatles - Yellow Submarine" Bluray...
Quote:
EDIT - Did a bit of investigating, looks like there were 3 m2ts in the mpls, the first one had didn't have PCM streams in it and the last one was just black for a few seconds. Just loaded the m2ts directly and seems to have resolved the problem except no chapters hope I can get those out another way but I guess this is RESOLVED. Last edited by tebasuna51; 24th August 2012 at 08:36. |
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31st August 2012, 00:21 | #11755 | Link |
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I need to convert a 7-channels dts to ac3 5.1.
The channels are mapped as this: Front: L C R, Side: L R, Back: C, LFE / Front: L C R, Side: L R, LFE (from MediaInfo). I do not own any commercial DTS encoder, are there any other tools I can use with eac3to to process this file? Thanks |
31st August 2012, 15:27 | #11757 | Link | ||
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Quote:
Quote:
Also, if you mean you don't have any commercial DTS decoder (like ArcSoft or Sonic) then eac3to will using libav to decode and it can only output 5.1 anyway. [EDIT] Not sure in this case you'll need to remap or not.[/EDIT] Last edited by the_weirdo; 31st August 2012 at 15:31. |
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31st August 2012, 19:54 | #11758 | Link |
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The ramicio solution must work always.
- The source is 7.1 then not needed remap (only 6.1 need) - If a decoder like ArcSoft is not installed (Sonic don't decode 7.1, I think) the -down6 is ignored. BTW, there are demo versions of ArcSoft decoder than work with eac3to. Use the search.
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31st August 2012, 22:46 | #11760 | Link | |
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Then, if you have ArcSoft/Sonic decoder the remap is necesary: eac3to <input> <output> -down6 -0,1,2,3,5,6,4
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