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29th June 2008, 18:41 | #5342 | Link | |
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p.s. you can always do the following test to check: decode the track with Sonic (only 5.1 channels) to wavfile1 decode the track with Arcsoft (all 7.1 channels) to wavfile2 split the channels of the wavfile1 and wavfile2 with Wavewizard. compare wavfile1_ch0 with wavfile2_ch0 and if they are byte by byte identical then eac3to handles the track correctly. Last edited by xkodi; 29th June 2008 at 19:02. |
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29th June 2008, 18:44 | #5343 | Link |
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I have sent these samples (we have the same disc) to madshi a long time ago, but he has forgot to add support for them. If he doesn't have them anymore, i have samples cut and ready from the first time, so you can count on me for that.
Last edited by nautilus7; 29th June 2008 at 18:46. |
29th June 2008, 18:44 | #5344 | Link | |||
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I know. I don't think it's important because there's not a single movie in the world (at least as far as I know) which uses 7.1 E-AC3. There's only a Dolby demo. Or am I wrong? Quote:
No, I didn't... I just decided that there are more important things to do. Last edited by madshi; 29th June 2008 at 18:46. |
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29th June 2008, 18:53 | #5345 | Link | |
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You do know that eac3to can output mono wavs, right?
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Last edited by nautilus7; 29th June 2008 at 18:56. |
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29th June 2008, 18:54 | #5346 | Link | |
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Now with: eac3to seven_channel.wav output.wav -extensible the 7th channel is doubled to 8th channel without remapping then is always wrong. |
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29th June 2008, 18:58 | #5347 | Link | |||
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i am still testing and not sure, but i think that on one of the sample ArcSoft do not output noise when is set to 24bit. is there any chance that ArcSoft can detect from what source WAV file the E-AC3 track is made - 16bit or 24bit? Quote:
yes, i know, but to be honest totally forgot about that, thanks to remind me. Last edited by xkodi; 29th June 2008 at 19:08. |
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29th June 2008, 19:11 | #5348 | Link | ||
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madshi,
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However, I find the idea proposed by tebasuna51 (here), based on the distribution of acoustic power, very convenient. For 6.1-->7.1 it would mean: Back_new(l,r) * cos(30) = 0.5 * Back_old ==> Back_new(l,r) = 0.5 * Back_old / cos(30) taking sqrt: Back_new(l,r) should be 0.76 * Back_old In theory we should also subtract the newly added x-component from the side channel, but I think this can be neglected. |
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29th June 2008, 19:21 | #5349 | Link |
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i confirm that there are E-AC3 tracks that ArcSoft output without noise when set to 24bit and that there are E-AC3 tracks that ArcSoft output without noise only when set to 16bit. ArcSoft decodes the DTS-HD MA correctly only when the right parameters are set, so maybe it is the same with the E-AC3 track and somehow ArcSoft finds the resolution of the source WAV file from which the E-AC3 track is made. probably, the best is madshi to look at that, when there are no more important things to do, i will be happy to provide the samples when the time comes.
Last edited by xkodi; 29th June 2008 at 20:29. |
29th June 2008, 21:51 | #5351 | Link |
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DTS-MA Demux/Conversion: Lengths don't match?!
Hi, all...
I've installed ArcSoft's TotalMedia Theater 15-day trial... and have eac3to v2.50. I'm trying to rip my copy of Ice Age 2. I thought this one would be easy as it's not seamless branched and it's only MPEG2 instead of x264! It's a WinXP Pro SP2 box. The curveball here is that the audio is DTS MA... I've had success with AC3 but DTS-MA is new for me... eac3to log: Code:
eac3to v2.50 command line: "E:\Video_Encoding\eac3to\eac3to.exe" "E:\Ice_Age_2\BDROM\BDMV\STREAM\00001.m2ts" 3: "E:\Ice_Age_2\BDROM\BDMV\STREAM\test3.wav" -down2 ------------------------------------------------------------------------------ M2TS, 1 video track, 5 audio tracks, 1:30:36 1: Chapters, 25 chapters 2: MPEG2, 1080p24 /1.001 (16:9) 3: DTS Master Audio, English, 5.1 channels, 24 bits, 48khz 4: AC3, French, 5.1 channels, 448kbit/s, 48khz, dialnorm: -27dB 5: AC3, Spanish, 5.1 channels, 448kbit/s, 48khz, dialnorm: -27dB 6: AC3, English, 2.0 channels, 224kbit/s, 48khz, dialnorm: -27dB 7: AC3, English, 2.0 channels, 224kbit/s, 48khz, dialnorm: -27dB [a03] Extracting audio track number 3... [a03] Downmixing multi channel audio to stereo... Loading white noise (needed for dithering)... [a03] Decoding with ArcSoft DTS Decoder... [a03] Writing WAV... [a03] Creating file "E:\Ice_Age_2\BDROM\BDMV\STREAM\test3.wav"... Video track 2 contains 130338 frames. eac3to processing took 15 minutes, 50 seconds. Done. I've not bothered just chopping the tail off the audio yet... more puzzled at the moment. What happens if I try to mux the audio as it it stands? |
29th June 2008, 22:10 | #5352 | Link | ||||||
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"AC3 and E-AC3 tracks do not have a fixed bitdepth. If there is noise when decoding the tracks to 24bit with ArcSoft then this is a clear bug in ArcSoft. The native output of any AC3/E-AC3 decoder is floating point. Which is much more than 24bit." Quote:
I see no reason to add support for the TrueHD decoder, as the libav decoder is virtually perfect. I might consider adding support for the (E-)AC3 decoder later. But xkodi's reports don't really encourage me to do that. I don't like wasting hours on integrating a buggy decoder. FWIW, integrating the ArcSoft decoders into eac3to is a pain in the ***. So I will do that only if it's really worthwhile... |
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29th June 2008, 22:46 | #5354 | Link |
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@madshi
two interesting DTS-HD MA samples, both decode perfectly with eac3to, but the first one is the only 16bit, 6.1 channels DTS-HD MA track i found so far and the second has some weird channel order i think it is the same as Shoot 'Em Up Internal Affairs II, DTS-HD MA, 6.1, 16bit, 48kHz: http://rapidshare.de/files/39868411/....ma.dtshd.html Pan's Labyrinth, DTS-HD MA, 7.1, my tests made me think it has interesting channel order: http://rapidshare.de/files/39868422/....ma.dtshd.html i found a workaround for the noise problem - if i set the bit depth in ArcSoft decoder control panel before connect the graph there is no noise and the decoded sound is normal. other than that i don't know how to test the ArcSoft (E-)AC3 decoder, because of that not integer thing that you have explained. Last edited by xkodi; 29th June 2008 at 23:13. |
30th June 2008, 01:59 | #5355 | Link |
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madshi,
"Program too big to fit in memory" I get this error no matter what I run, be it on files, a folder, -test or just eac3to by itself for help. This is about the third time I've gotten this error. The first time(s) I've attributed it to something I did, but this time I was just trying to list the contents of a folder after successfully muxing/converting another folder. No matter what I do after this, this is all eac3to will return. I solved it in the past by deleting eac3to and replacing it. Is there something else I can do on my end to fix it when this happens or is deleting it the best course of action? I've currently got the bad eac3to in a separate folder and I'll keep it until I know if there is anything you want me to check it for. The current one I just unzipped back into my 2.50 folder works fine. edit: Took a closer look at the files, eac3to.exe weighs in at 141,284 bytes instead of 1,484,288 bytes as it should. Not sure why this happened.
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Eac3to And More GUI Last edited by Yraen; 30th June 2008 at 03:11. |
30th June 2008, 08:57 | #5356 | Link |
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Problem converting from .dtshd to .ac3
Hi madshi,
I tried converting from .dtshd file which i have to .ac3and its giving me an error as below: Code:
C:\Documents and Settings\ramki\Desktop\tools\eac3to_v2.48>"C:\Documents and Se ttings\ramki\Desktop\tools\eac3to_v2.48\eac3to.exe" "C:\Documents and Settings\ ramki\Desktop\tools\eac3to_v2.48\12-24kbps-32tone-10.dtshd" "C:\Documents and S ettings\ramki\Desktop\tools\eac3to_v2.48\12-24kbps-32tone-10.ac3"-64 The format of the source file could not be detected. 12-24kbps-32tone-10.dtshd Regards, Ramki. Last edited by ramki067; 30th June 2008 at 09:00. |
30th June 2008, 09:18 | #5357 | Link | |||
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This file is "DTS-HD Low Bitrate" which is not supported by eac3to yet. These files do not have a conventional DTS core. They only consist of DTS-HD packages. That's not a stream type which eac3to supports right now. But this type of audio track is usually only used for PiP audio. So is this DTS track PiP audio? Or where did you get it from? |
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30th June 2008, 10:36 | #5358 | Link | |
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I would have thought that also except for two bits of information I accidently left off, probably due to lack of sleep. I've ran scandisk and it finds no errors. And one time this happened was on a separate computer. It probably is something I'm doing since no one else has reported anything like this.
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Eac3to And More GUI |
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30th June 2008, 12:56 | #5359 | Link | |
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Yes madshi, it is used for PiP audio which is used in our product. Its actually a file from our Customer. We have many such files which needs to be converted to .wav file ultimately. Is their any such tool for converting this low bitrate .dtshd file or can you please include support in the next release of your application? Thanks, Ramki. Last edited by ramki067; 30th June 2008 at 13:15. |
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30th June 2008, 13:20 | #5360 | Link | |
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If I may ask - just for my interest (but not really important): Who is "we" and what is "our product"? You don't need to answer if you don't want to. |
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