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15th September 2012, 11:50 | #1 | Link |
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Stereo Downmix with Besweet
I am trying to downmix 5.1 to stereo (not DPLI or DPLII) with Besweet v1.5b31. I have six mono wavs and have made a .mux file.
The channel order in the .mux file is as follows. "C:\L.wav" "C:\R.wav" "C:\C.wav" "C:\LFE.wav" "C:\SL.wav" "C:\SR.wav" I am using the following command line. "BeSweet.exe" -core( -input "file.mux" -output "file.wav" -2ch -logfile "file.log" ) -azid( -s stereo --maximize ) -ota( -g max ) When I input my command line, the process that finds the maximum gain runs until completion, but when "transcoding..." appears nothing happens, no matter how long I leave it. An empty file appears on my hard drive that is labelled SR_1.WAV and the logfile suggests that nothing has been transcoded. [00:00:00:000] +------- BeSweet ----- [00:00:00:000] | Input : C:\.mux [00:00:00:000] | Output: C:\SR_1.wav [00:00:00:000] | Floating-Point Process: No [00:00:00:000] | Overall Track Gain: 0.714dB [00:00:00:000] | Source Sample-Rate: 48.0KHz [00:00:00:000] +--------------------- It does not appear that anything other than the last wav in the mux file (i.e. SR.wav) is being read. I also tried the Belight GUI, but the same happens. When I load the .mux file into Belight, the filename given in the GUI is SR.Wav and the description next to it is WAV - Mono - 768kbps - 48000Hz, which deepens my suspicion that only that last wav is being read. I am aware of other methods of downmixing to stereo but am unhappy with the output and want to try Besweet's to compare. Any help would be appreciated. Operating system: Windows 7 Home Premium (64bit) |
15th September 2012, 17:43 | #2 | Link |
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Only AC3 sources can be downmixed, because is the Azid decoder the only soft included with BeLight/BeSweet than can do the job.
Please explain your problem with other downmixing methods. You can obtain the 3 Azid methods (stereo, dpl I, dpl II), or make your personal downmix, with BeHappy.
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15th September 2012, 18:18 | #3 | Link | ||
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Quote:
Quote:
This is the procedure I followed with Behappy. Downmix Normalize to 100% Convert sample to 24 bit int |
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15th September 2012, 20:21 | #4 | Link |
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With BeHappy you can select between modes: DPL II, DPL II (LFE), DPL I and Stereo
If you select DPL II and Normalize 100% is the same than use eac3to -down2 -normalize (I passed the same parameters from BeHappy to Madshi to make the downmix)
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15th September 2012, 22:00 | #5 | Link | |
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By the way, I thought that Eac3to normalizes automatically when -down2 is selected and that -Normalize is no longer needed. Is this not true? Last edited by Richard1485; 15th September 2012 at 23:23. |
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16th September 2012, 01:01 | #6 | Link | ||
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The mix for DPL II (BeHappy or eac3to) is: fl' = 0.3254xFL + 0.2301xFC + 0.2818xSL + 0.1627xSR fr' = 0.3254xFR + 0.2301xFC - 0.1627xSL - 0.2818xSR The mix for Stereo in BeHappy is: fl' = 0.2929xFL + 0.2071xFC + 0.2071xLFE + 0.2929xSL fr' = 0.2929xFR + 0.2071xFC + 0.2071xLFE + 0.2929xSR I can add to BeHappy other personalized mix if you want. Quote:
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16th September 2012, 09:07 | #7 | Link | |
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One difference seems to be that stereo downmixes the LFE, whereas the DPLII does not. In terms of what you posted above, I do not understand how the center and surround channel are matrixed in with DPLII and how to avoid this matrixing in when making a pure stereo mix. Thanks for the information about the -Normalize switch in Eac3to. |
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Tags |
besweet, downmix, mux file, stereo |
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