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10th February 2011, 13:58 | #121 | Link | ||
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"Specifically, normalization applies a constant amount of gain to the selected region of the recording to bring the highest peak to a target level, usually to -1.0, or to -6.0 dB, in order to allow for addition of two channels without exceeding 0.0 dBFS, or 100% (0 dB)" – http://en.wikipedia.org/wiki/Audio_normalization Quote:
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13th February 2011, 01:02 | #123 | Link |
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RC-1 is out
This is the first release candidate. The final v4.00 release is scheduled for 2011-02-20. If you have any showstoppers to report, please do now
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17th February 2011, 22:38 | #124 | Link |
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Stumbled on some bug when updating from 290 (or maybe 268...i'm not sure) something to 316, went check for updates, download, next and then the wma thing kept popping from behind and I couldn't close LameXP due to that, had to close it using Process Explorer (yeah task manager would have worked too).
See http://www.youtube.com/watch?v=_xKTDJs9TCk note that window saying "Download failed" but I never selected to download and installed the wma codecs/tools. |
18th February 2011, 01:14 | #125 | Link | |
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I was able to reproduce the issue: It only happened when the auto-updater was launched by the update-reminder (i.e. not manually by the user) and a new update was available and the user chose to install the update and the WMA decoder component was not installed on the computer yet. I think I found the reason for this mess and it should be fixed by now in build #320. At least I hope so...
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20th February 2011, 00:12 | #126 | Link | |
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Hi MuldeR,
had some time today and gave Build #320 an extensive test run. Results: Uneventful... Everything works as expected, absolutely stable. Still I wish you had found the time to add AC3 output to LameXP. A complete rewrite would have been the perfect occasion. And I also found the time to explore a real bug which had already been present in v. 3.18. Remember my old post? Quote:
The error only happens when the source is AC3, when the source is MP3 everything is fine. Scenario: Source is a 2-channel AC3 file, 48 kHz sampling rate, 16 bit. (Just to make sure that the error is not with the source, I used a couple of different source files created either with Aften or with AC3Enc) My goal was to convert the AC3 to a Wave file with the same depth and sampling rate. Load the AC3 into LameXP, select WAVE as output format, under advanced options leave sampling rate on "Automatic". Resulting file is 48 kHz 16 bit WAVE, and it is rejected by MuxMan. Second test: Same source file, the only difference is that under advanced I set the sampling rate to 48 kHz instead of automatic. Resulting file is also 48 kHz 16 bit Wave, but this time MuxMan accepts it. Open the two files in a hex editor and notice that they have very different headers. These two files should be bit by bit identical. Why aren't they? The fact that MuxMan refuses to open the file which was created with the "automatic" sample rate setting is enough to tell me that the header of this file is corrupt. I hope you can fix this without delaying the final release too much... Cheers manolito |
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20th February 2011, 15:03 | #127 | Link | |||||
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I won't add new features right before the 4.00 release, so translators can finish up their work... Quote:
As long as MuxMan is really the only application that complains, I would suspect the problem there... Quote:
But that doesn't necessarily mean that there is a problem with those files. It needs further investigation... Quote:
Obviously MuxMan likes the Wave/RIFF files written by SoX better. Quote:
But just because one single application (i.e. MuxMan) refuses the files written by ValibDec, this doesn't necessarily mean that ValibDec's files are corrupt. I will have a look, but can't grantee anything. In case it turns out ValibDec really writes invalid files, the AC3Filter developer would need to fix it...
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20th February 2011, 16:44 | #128 | Link | |
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Another strong indication that ValibDec is to blame is that if you open and resave these problematic files in a wave editor (I tried WaveLab, Nero Wave Editor and Audacity), MuxMan has no problems with the resaved files. Cheers manolito |
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20th February 2011, 16:57 | #129 | Link | ||
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Whether the DVD authoring software accepts a specific Wave/RIFF file or not is a complete different question. And it has nothing to do with "DVD compliance". It's the actual PCM audio data - may it be stored in a Wave container or in some other container - that can be DVD compliant (or not) in this case. Quote:
I will try to have a look. Please give me a moment...
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20th February 2011, 18:08 | #130 | Link |
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manolito,
I can reproduce your issue. MuxMan rejects the Wave file written by ValibDec, but piping the file through SoX once makes it accept the file. Unfortunately MuxMan doesn't give any information on WHY it did reject the file. Or do I miss something ??? Anyway, while it is obvious that the files are not bit-identical, I have so far been unable to find a reason that would justify accepting the one file, but rejecting the other. All the analysis tools I tried seem to indicate that format of the files is identical: http://pastie.org/private/n6uyrwqo3nqgihsjidyoa Moreover I tried various applications (Audacity, CoolEdit Pro, Winamp, Foobar2000, MPlayer, VLC Player) and not a single one complained about the file written by ValibDec. Last but not least encoding to FLAC from both Wave files individually results in two 100% bit-identical FLAC files. So the content is identical! Consequently there currently is NO indication that there is anything wrong with the file. I will assume that this is a problem of MuxMan, unless more info is provided...
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20th February 2011, 21:00 | #131 | Link |
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@manolito
@LoRd_MuldeR mano, I can feel the pain your in Some time ago I tried to import wave files into Wavelab (famous wav editor). They were rejected with some kind of stupid error message. Loaded in any mediaplayer or other wav editors they were doing right. So I fired up a hex editor to see the differences between Wavelabs angels and beasts. There were definitly different header informations and rewriting the header of the non working file solved the import failure in Wavelab. Dont ask me how I solved it, it happened a long time ago in the past. I changed my whole workflow since then. Cant even remember the program or binary which wrote the wav's.... |
20th February 2011, 21:20 | #132 | Link |
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Again: You can't compare the Wave files byte-by-byte (e.g. in a Hex-Editor) and then conclude that one of the files is "broken", just because the files are different at some point.
Actually there may be various reasons why the files are different and still both files can be perfectly valid. The one and only thing that matters: Is the file "valid" with respect to the RIFF/Wave specifications? If the file is valid with respect to the specifications, then the reading-application must accept it. And if it doesn't, then it's the reading-application (not the writing-application) that must be fixed. Only if it turns out that the file is "invalid" with respect the the specifications, then the writing-application is to blame... [UPDATE] I just downloaded a Demo version of Wave Lab 5 and finally got it to work on my Windows XP VM. And it turns out that Wave Lab opens the Wave file written by ValibDec flawlessly [/UPDATE]
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20th February 2011, 21:25 | #133 | Link |
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I posted the issue to the MuxMan thread:
http://forum.doom9.org/showthread.ph...39#post1479439 Let's see if mpucoder comes up with something.... Cheers manolito |
21st February 2011, 06:58 | #134 | Link |
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I have been using the 3.18 on my Windows intel core i5 cpu 650@3.2ghz pc and find it runs 8 threads simultaneously when encoding flac files to mp3. I tried the 4.0 build 324 today and it only ran 4 threads simultaneously and was obviously slower. When you release a final 4,0 stable version will it be similarly restricted to 4 threads ?
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21st February 2011, 10:01 | #135 | Link | |
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21st February 2011, 10:55 | #136 | Link | |
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I didn't assume that your program is writing wrong headers or content in wav files. Wavelab 3.0 and 5.0 are opening the files made by your program just fine. It was an older program (dont remember which one) which modified the header so wavelab could not read it. Wavelab is the defacto standard for wav editing. Just wanted to point it out that maybe the information in the header is bringing muxman to its knees. |
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21st February 2011, 11:55 | #137 | Link | |
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With Hexacore processors and Hyperthreading, PC's can have 12 or more (logical) cores nowadays. So I think we definitely need a limit here. Though four was chosen a bit arbitrarily.
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21st February 2011, 14:33 | #138 | Link | |
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LameXP v4.00 Final has been released
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21st February 2011, 16:41 | #139 | Link |
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Many thanks... I've just downloaded it
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aac, aotuv, flac, lame, lamexp, mp3, mp4, ogg, oggenc, opus, vorbis |
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