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18th December 2004, 01:33 | #42 | Link |
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Thanks ahgc for your update!
I'll have to check it out. By the way, so far I haven't heard anything from Milan about ffdshow. To check for updates check the ffdshow website for updates periodically. PS- 200 POSTS! HAPPY 200 POSTS TO ME! Regards, joshbm |
23rd April 2005, 01:16 | #43 | Link |
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Looks like no one posts here anymore, but I have to ask something.
It seems that the InterVideo filter has the same channel order to the Cyberlink filter (which doesn't modify the length of the audio, nor does it mute the first seconds). The question is; where should each channel be swapped for using this as a Pro-Logic II decoder to use with my GameCube? For example, should I swap the channels to match AC3Filter's channel configuration and use that filter before outputting the audio to be rendered? Thanks. |
15th June 2005, 17:25 | #44 | Link | |
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20th June 2005, 09:08 | #45 | Link |
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@dark.soft: Okay... I will do this in the morning... It's quite late here and I'm tired
@hrlslcbr: I have not tried the new Cyberlink DPLII upmixing method. The old one strictly upmixed to DPLI (which made rear right and rear left sound exactly the same). I will try this in the morning as well :-P. Regards, joshbm
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20th June 2005, 17:15 | #46 | Link |
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@dark.soft:
Yes the channel ordering is correct with channel swapping. If you do not believe me, run through this process and encode an ac3 file yourself. Then burn it to a DVD and test it through a 5.1 speaker system. I have run multiple tests and it is the correct channel order. I will post a screen momentarily. PS- What Cyberlink product has DPLII upmixing capabilities (so I can download it, test it, and possibly update the guide)? Regards, joshbm
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20th June 2005, 19:56 | #47 | Link |
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@joshbm
Sorry, you were right: the channel order is correct, I discovered it today, thank you! I have two little OT questions: soft encode is a good AC3 encoder? I can't find out information on a good encoder (excluding ac3enc, wich I don't like). Another thing is: I have 6 mono wavs obtained from a 5.1 wav created by your process, and I need to normalize them individually with sound forge. So, when i choos process>normalize, then I want them at a certain average RMS level, not the standard -31. So, if I have, say, a wav file at -40 db, and I want it at -27, what should I choose in the normalize to slider? And what should I choose at the "if clipping occurs" option to have a better result? Finally, in the scan settings, excluding the "use equal loudness contour option", what other options should I use? I'm very sorry to ask these things here, but in my topic nobody answered, and I see you're pretty good in audio treatment . |
21st January 2007, 12:28 | #50 | Link |
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I'm not sure if this is equivalent, but in the current ffdshow you can simply use the dolby decoder to do upmixing.
This seems to take care of everything including LFE. So, in ffdshow, you would only need to have dolby decoder checked. I also use volume to do normalization, but that's not necessary (although from here you can see that indeed LFE is being generated). Additionally, ac3 output is working. Just make sure you change the output back to 16bit when you're done otherwise ffdshow only decodes to spdif (hence no sound). |
21st January 2007, 14:20 | #51 | Link | |
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Contents (in %) in recovered (') channels from original channels ffdshow Dolby decoder FL FR C LFE SL SR --- --- --- --- --- --- FL' 94 7 17 - 84 9 FR' 6 97 17 - 9 82 C' 48 45 1xx - 10 10 LFE' 10 6 3 - 7 6 SL' 79 0 0 - 1xx 68 SR' 0 79 0 - 69 1xx You can see Cyberlink Audio Effect (Power DVD 7) more effective recover at http://forum.doom9.org/showthread.ph...466#post938466 PowerDVD 6 also work like hrlslcbr say. |
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21st January 2007, 15:13 | #52 | Link | |
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21st January 2007, 16:09 | #53 | Link |
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You are right. If you want a free tool you can use ATSurround plugin for Foobar2000:
Code:
ATSurround-AS2 (Foobar) FL FR C LFE SL SR --- --- --- --- --- --- FL' 67 0 6 - 30 3 FR' 0 67 6 - 3 30 C' 6 6 67 - 1 1 LFE' - - - - - - SL' 7 4 2 - 51 45 SR' 4 7 2 - 45 51 |
22nd January 2007, 02:59 | #54 | Link |
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Thanks
But I've already tried. I get a sharing violation on the destination file after about 62 minutes into the audio when converting to 6ch WAV. BTW, how do you check/generate that information in the table? Last edited by OCedHrt; 22nd January 2007 at 03:06. |
23rd February 2007, 12:43 | #55 | Link | |
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Problems with big file size? Greater than 2 GB or 4 GB? I use a test channel (with channels independents in time) then: wav6 -> Downmix -> wav2_dpl -> Upmix -> wav6' And I compare (volume and phase) output channels with input channels. Of course with real sounds isn't so easy because channel coupling/cancellation, but at least the procedure must work with independents channels. There are a new plugin for Foobar foo_dsp_fsurround with better performance with dpl 2. |
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29th April 2007, 20:56 | #56 | Link |
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No input/output pins for intervideo audio processor Fx in GrapEdit !!!
Here's the screenshot when I tried to load Intervideo Audioprocessor Fx in Graph Edit:
There is no input/output pin to this module to connect anything....what kind of a weird error is this.
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