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13th August 2008, 11:27 | #5741 | Link |
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I think you're right. I did a test...it muxes the track, but the playback seems problematic. But if tsMuxer improves in the future, it might still be a handy option to have in your program, although it would be rarely used offcourse.
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13th August 2008, 19:38 | #5742 | Link | |
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To get transparency q=0.35 is enough. Anyway, no big deal to set the -quality 0.X switch, itīs just a suggestion. ---------- Edit: Short question concerning -down2: When doing AC3-5.1 --> 2CH-WAV manually using besweet, I can specify how channel-mixing have to be done. For example: Code:
beSweet.exe -core( -input "audio.ac3" -output "audio.wav" -2ch ) -azid( -n1 -s stereo -c light -L -3db ) -ota( -norm 0.98 ) Code:
eac3to input.whatever output.m4a -down2 greets LTJ Last edited by LessThanJake; 13th August 2008 at 20:08. |
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13th August 2008, 22:13 | #5743 | Link | |||
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http://en.wikipedia.org/wiki/Dolby_Pro_Logic probably, eac3to uses exactly the same matrix. with -mixlfe, LFE is included in the downmix too. [edit] @madshi i took the DPLII matrix from wikipedia and with mplayer and the "pan" filter i'm doing: Quote:
Last edited by xkodi; 13th August 2008 at 22:25. |
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13th August 2008, 22:22 | #5744 | Link |
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Can eac3to take a DTS-HD or MA or DTS-ES discreete and ouput a wav for each channel all 6.1 of them? I ask this because DTS Surround Suite from DTS is the same price as the surcode product and it is able to encode DTS-ES so we wouldn't be stuck with surcodes 5.1 support.
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13th August 2008, 22:32 | #5745 | Link | |
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14th August 2008, 09:06 | #5746 | Link | |
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Your mix is: Lt' = FL + 0.707xFC + 0.707xLF - 0.8165xBL - 0.5774xBR Rt' = FR + 0.707xFC + 0.707xLF + 0.5774xBL + 0.8165xBR The default downmix in BeHappy is: Lt' = 0.3254xFL + 0.2301xFC + 0.2818xBL + 0.1627xBR Rt' = 0.3254xFR + 0.2301xFC - 0.1627xBL - 0.2818xBR Differences: - The LFE channel is not used by Dolby recommendation, but is optional in BeHappy and eac3to. - The coefficients are normalized (100%). With your matrix you can obtain overflows until 380.79 %. - The coefficients in surround channels have a little correction, 0.866 and 0.5 instead 0.8165 and 0.5774 (un-normalized values). Is based in a old Besweet-Azid discussion and was assumed to produce a better channel separation. Verified by my test using PowerDVD dpl2 soft decoder. - The signs in surround channels are inverted. With original signs the BL channel is inverted when use PowerDVD dpl2 soft decoder. Last edited by tebasuna51; 14th August 2008 at 09:15. |
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14th August 2008, 09:57 | #5747 | Link |
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tebasuna51, thank you very much for providing excellent information as always!
i read you post about downmixing with AviSynth, but AFAIU it is not on-the-fly during playback. are there other plugins like the mplayer pan filter that are capable to do downmixing on-the-fly? is there a place where i can find more good downmix matrices for things like 5.1->2.0, 6.1->2.0, 7.1->2.0, 7.1->5.1, etc? it would be very cool if there is DirectShow filter that accept any downmix matrix as settings and output the the downmixed audio. Last edited by xkodi; 14th August 2008 at 10:29. |
14th August 2008, 12:59 | #5749 | Link | |
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- .avs files can be played by mpc and others players. - with DS ffdshow and ac3Filter you can define any matrix. - you can use these coeficients with mplayer (some versions have problems with multichannel remapping) |
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15th August 2008, 00:49 | #5752 | Link |
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It does not crash on my PC.
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15th August 2008, 15:19 | #5754 | Link |
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@Madshi
I converted M2TS video file to MKV video file with Eac3to as backup. But now i want to convert it back to M2TS container. I tried to extract MKV file, it gave me Video File in AVI Container. Can you tell me how to further extract Original VC-1 file from AVI container? Regards, Sehgal |
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