IPB

Welcome Guest ( Log In | Register )

 
Reply to this topicStart new topic
Announcing Lplex - Wave/Flac to DVD-V and Back Again (Free/Open-Source
aval57
post Jul 19 2006, 18:42
Post #1





Group: Members
Posts: 12
Joined: 14-July 06
Member No.: 32897



Folks, announcing the release of Lplex 0.2 Beta, a simple drag-and-drop open-source win32 console utility intended to provide a free, quick, and hopefully painless way to
  • create a playable full-resolution "audio-only" dvd-video disc from
    wave or flac audio filesets, with md5 verification and archival
    content.
  • extract unencrypted lpcm audio streams from dvd-video to wave or
    flac in an md5-verified process.
2006-08-08 : Version 0.2 beta released
Please take a moment to look at the changelog and updated readme.

Download
Home
Forum
Mail: <audioplex-lpcm@lists.sourceforge.net>

This post has been edited by aval57: Aug 8 2006, 19:58
Go to the top of the page
+Quote Post
neomoe
post Jul 29 2006, 11:20
Post #2





Group: Members
Posts: 302
Joined: 18-June 03
From: Europe/Germ./MA
Member No.: 7255



why has noone posted a reply?

havn't tested yet but thank you! if it holds its promise definitely a nice app! smile.gif

This post has been edited by neomoe: Jul 29 2006, 11:21


--------------------
[url="http://www.ergosum-apple.de"]www.ergosum-apple.de[/url]
Go to the top of the page
+Quote Post
kwanbis
post Jul 29 2006, 13:51
Post #3





Group: Developer (Donating)
Posts: 2390
Joined: 28-June 02
From: Argentina
Member No.: 2425



QUOTE (neomoe @ Jul 29 2006, 10:20) *
why has noone posted a reply?

I personally don't have an use for "DVD-V audio only" discs. But is always good to see people contribute.


--------------------
MAREO: http://www.webearce.com.ar
Go to the top of the page
+Quote Post
HotshotGG
post Jul 29 2006, 16:33
Post #4





Group: Members
Posts: 1593
Joined: 24-March 02
From: Revere, MA
Member No.: 1607



QUOTE
I personally don't have an use for "DVD-V audio only" discs. But is always good to see people contribute.


Yeah, why not just write an authoring tool for creating DVD-A discs? they support LPCM do they not? A developer named Dave Chapman was working on that and posted a link to it on this forum here sometime ago.


--------------------
College student/IT Assistant
Go to the top of the page
+Quote Post
Shifty
post Aug 5 2006, 12:25
Post #5





Group: Members
Posts: 10
Joined: 5-August 06
Member No.: 33662



Well, I must say, something that shows a lot of promise! I have been looking for something like this (I know there is a similar program for DVD-A, but I really don't have a compatible player at the moment). I have been experimenting, and the only things I have found that seem to need a bit of work are:

1) When using "seamless" and "indescrete" modes, there were pops between every track as it changed tracks

2) I tried the "discrete" setting, but it crashed twice (have not tried the "none" mode yet)

3) I completely understand that DVD music is recorded in 48 Khz, but this means it is not just a simple drag and drop of folders with music files onto the .exe for processing; you have to convert all .wav and .flac files from 44 to 48 Khz first. Any way to implement this being done automatically?

4) Never could get it to work in decode mode from a DVD with audio files (tried Depeche Mode Violator - DVD)

Still, the program is something that I am looking forward to watching develop! Keep up the good work!

Shifty
Go to the top of the page
+Quote Post
aval57
post Aug 5 2006, 14:46
Post #6





Group: Members
Posts: 12
Joined: 14-July 06
Member No.: 32897



QUOTE (Shifty @ Aug 5 2006, 07:25) *
1) When using "seamless" and "indescrete" modes, there were pops between every track as it changed tracks

2) I tried the "discrete" setting, but it crashed twice (have not tried the "none" mode yet)

3) I completely understand that DVD music is recorded in 48 Khz, but this means it is not just a simple drag and drop of folders with music files onto the .exe for processing; you have to convert all .wav and .flac files from 44 to 48 Khz first. Any way to implement this being done automatically?

4) Never could get it to work in decode mode from a DVD with audio files (tried Depeche Mode Violator - DVD)



Shifty, a couple of follow-up questions:

1) Was the input audio continuous? Are these pops present when using a software player or after burning? Are they a silence or an actual noise? Would it be possible (using audacity or something) to record and attach snippets of both the original and the Lplex 'seamless' transitions?

To clarify: there's supposed to be a gap in both 'discrete' and 'indiscrete' modes, but no gap in 'seamless' mode.

1,2) Would you mind, immediately after recreating each failure, retrieving, zipping and attaching the file Lplex.log, which would be in your user home directory (type %USERPROFILE% in the Explorer address bar to go there). If there was no crash, you'll find Lplex.log in the 'XTRA' subfolder of the '_DVD' output folder. I can't help you much without more details.

3) Sorry, no upsampling support, but there are several free/easy resamplers you might want to look at: Shibatch, SRCdrop, and WaveFS44, all available at rarewares, and also r8brain. SRCdrop is a win32 frontend for SRC, which is incorporated into (and recommended by) Audacity. I wrote the program mainly to give people without dvd-audio players access to hi-res audio.

4) This would be an encrypted commercial dvd. Lplex only processes unencrypted audio. It may also be that the audio is not lpcm. The contents of Lplex.log would clarify this too.

This post has been edited by aval57: Aug 5 2006, 15:28
Go to the top of the page
+Quote Post
Shifty
post Aug 6 2006, 09:20
Post #7





Group: Members
Posts: 10
Joined: 5-August 06
Member No.: 33662



aval57,

Back again wink.gif

1) I used the Lplex .iso image, but I'll try with some different audio today in seamless mode.

2) As for the error message, I get "No audio to process". I have checked the output of the LPCM track from the Depeche Mode and it is 48 Khz and 16 bit (it has the whole album and some extra tracks in LPCM format). Just to verify the encryption, I tried a different DVD-A/V (Yes - Fragile) that I know is encrypted and droppped it into Lplex straight off of the disc. Lplex gave me a warning that it does not support encryption (which I expected), but then crashed (no log file).

Hope all this is helping.

Thanks again,
Shifty
Go to the top of the page
+Quote Post
jlt
post Aug 6 2006, 15:26
Post #8





Group: Banned
Posts: 89
Joined: 6-August 06
Member No.: 33714



QUOTE (neomoe @ Jul 29 2006, 04:20) *
havn't tested yet but thank you! if it holds its promise definitely a nice app! smile.gif


you're right.
from the "readme"

" Lplex presently
attempts to support the varieties marked '+'.

Rate Depth : Channels
(khz) (bits) : 1 2 5(+1) 8
-------------------------------------------
48 16 : Yes+ Yes+ Yes+ Yes+
20 : Yes Yes Yes -
24 : Yes+ Yes+ Yes+ -
96 16 : Yes+ Yes+ - -
20 : Yes Yes - -
24 : Yes+ Yes+ - -
"

thank you aval57,go ahead(i register in the forum after read this thread)
cool.gif
Go to the top of the page
+Quote Post
Pio2001
post Aug 6 2006, 15:44
Post #9


Moderator


Group: Super Moderator
Posts: 3936
Joined: 29-September 01
Member No.: 73



QUOTE (Shifty @ Aug 6 2006, 10:20) *
I have checked the output of the LPCM track from the Depeche Mode and it is 48 Khz and 16 bit


Stange, in Music for the Masses, the LPCM tracks are 24 bits. Use DVD Decrypter to rip just one track, demuxing the audio content to an extra file. There you can check if it is a 16 or a 24 bits wav. DVD players may not recognize properly the stream properties.
Go to the top of the page
+Quote Post
Shifty
post Aug 8 2006, 14:17
Post #10





Group: Members
Posts: 10
Joined: 5-August 06
Member No.: 33662



aval57,

OK ... was using some different audio files (ripped from CD to hard disc and converted to 48 Khz). Both test images (using "seamless") still have a 'pop' as it shifts from one track to the next. Contact me and I can send you the log files from both test files.

Hope I can help,

Shifty
Go to the top of the page
+Quote Post
aval57
post Aug 8 2006, 15:59
Post #11





Group: Members
Posts: 12
Joined: 14-July 06
Member No.: 32897



Hi Shifty,
Zip them together and attach them to a new topic (maybe "Lplex log files") in the upload forum and I'll retrieve them.

btw, are you getting the pops in both upsampled and non-upsampled files? Have there been any 'seamless' tests without pops? If anyone else is getting pops in 'seamless' mode, please report.
Go to the top of the page
+Quote Post
aval57
post Aug 8 2006, 19:53
Post #12





Group: Members
Posts: 12
Joined: 14-July 06
Member No.: 32897



------------------------------------------------------------------------
CHANGELOG: Lplex v 0.2 beta win32
------------------------------------------------------------------------
  • Default black screen size is now 352x240-NTSC/352x288-PAL, and
    can be user-set to any of the valid dvd-compatible dimensions.
    If overwriting a previous v 0.1 beta installation, you can delete
    'black_NTSC.jpg' and 'black_PAL.jpg', which are no longer required.
  • Partial authoring to either of raw lpcm, m2v, mpeg, or dvd stages
    is now enabled. 'isoCreate' (-b) option is now deprecated in favor
    of new general 'create' (-c)* option.

    *note: 'cleanup' short switch is now changed to -C.
  • A dvdStyler-compatible xml file can now be generated for authoring menus.
  • Flac compression level can now be user-specified.
  • Tightened input validation:
    1. Titleset audio consistency is now enforced.
    2. Dvd-compatibility of jpeg dimensions is now enforced.
    3. Non-canonical wave headers and non-lpcm wave data are now rejected.
    4. 32-byte iso volume id limit is now enforced.
    5. Dvd start/end sectors are now cross-checked for consistency with pts endpoints during extraction.
  • bugfix: Terminal empty chapter no longer causes crash during extraction.
Go to the top of the page
+Quote Post
Shifty
post Aug 8 2006, 22:09
Post #13





Group: Members
Posts: 10
Joined: 5-August 06
Member No.: 33662



aval57,

Have uploaded a log file (using beta2) into the uploads section under "Lplex log files". As for your questions, no, I have not tried a non upsampled file yet, and no, every test I have done still comes out with a pop between tracks. Keep me posted, and thanks for the help!

Shifty
Go to the top of the page
+Quote Post
aval57
post Aug 9 2006, 01:12
Post #14





Group: Members
Posts: 12
Joined: 14-July 06
Member No.: 32897



Shifty, this looks like a completely normal run. A couple of things to try, just to eliminate other possible causes (no doubt you've already done some of these, and apologies beforehand for suggesting the obvious)

-try different upsamplers (I'll also do a few upsampled tests to see if I get any pops). What resampler did you use? I'm assuming that when you play the resampled source files in foobar or winamp there are no pops.

-try some non-resampled hi-res content.

-try different software players (VLC, Mplayer, MPC, Powerdvd, Windvd, etc.) to see if the pops are always present.

-if you've burned a disc, try it on different dvd players if available.

Also, extract your test dvds with Lplex and verify that you get a "md5 ok" message. (Btw, retry the extraction that was giving you problems before; I made two changes in the new version that might help with that).

I'll try and replicate your conditions based on the log file, and see what I get.
Go to the top of the page
+Quote Post
aval57
post Aug 10 2006, 17:55
Post #15





Group: Members
Posts: 12
Joined: 14-July 06
Member No.: 32897



Shifty, it could be that the pops are upsampled cd-audio SBEs.

I tried to replicate your situtation by taking a 30-second 16/44 wav snippet and cutting it at random into three sample-aligned files (using the EAC sound editor), and verified the presence of SBE errors using shntool. Then I authored and extracted a cd-audio image to get a set of extracted wavs with SBE errors.

I upsampled both the original and the SBE set to 16/48 using SRCdrop and authored a 2 title PAL 'seamless backward' mode dvd.

In Audacity I captured the playback of both the original anf the SBE set, and then the corresponding playback from the dvd. The waveforms for the source, and the dvd are exactly the same . The original set has no pop. the SBE set has a faint pop which is present on the extracted wavs and naturally carries through to the dvd.

This was the only way I could get any sort of pop, so the question now is are you sure your cd-audio sources don't contain SBE errors, and do you get pops with non cd-audio sources?

This post has been edited by aval57: Aug 12 2006, 13:20
Go to the top of the page
+Quote Post
kaoruAngel
post Aug 24 2006, 01:48
Post #16





Group: Members
Posts: 23
Joined: 27-May 05
Member No.: 22323



How many minutes of audio can be expected to fit on one 4.7 GB DVD+R disc? I just noticed the readme link and noticed it supports numerous bit-depths, sampling rates and channel configurations, but I am referring only to simple, CD-source stereo audio (I believe that would fall under the category of 48kHz-resampled, 16-bit, 2-channel audio). I have no high-definition audio and am only interested in whether this may allow more than 80 mins of audio per disc. Thanks.
Go to the top of the page
+Quote Post
Patsoe
post Aug 24 2006, 10:42
Post #17





Group: Members (Donating)
Posts: 591
Joined: 11-February 03
From: UK
Member No.: 4952



QUOTE (kaoruAngel @ Aug 24 2006, 01:48) *
How many minutes of audio can be expected to fit on one 4.7 GB DVD+R disc? I just noticed the readme link and noticed it supports numerous bit-depths, sampling rates and channel configurations, but I am referring only to simple, CD-source stereo audio (I believe that would fall under the category of 48kHz-resampled, 16-bit, 2-channel audio). I have no high-definition audio and am only interested in whether this may allow more than 80 mins of audio per disc. Thanks.


Quick and dirty calculation:
the sample rate is ~ 10% higher, and CD-audio is 1440kbps -> we get something like 1600kbps = 200kBps.
So 10s of audio is approx 2MB and one minute approx 12MB. This shows you can easily store 80 mins in 1GB, even when I'm grossly exaggerating the overhead. Approx six hours per dvd, then, and perhaps more towards seven...

By the way, I think this is a very cool project! Easy way to make some hi-res recordings I made available to friends. Thanks!
Go to the top of the page
+Quote Post
aval57
post Aug 25 2006, 06:17
Post #18





Group: Members
Posts: 12
Joined: 14-July 06
Member No.: 32897



Thanks, Patsoe, and a good estimate too. Here's my rough calculation based on the actual overhead:

CODE
   MINUTES OF AUDIO (dvd+r/rw, black 352x240 NTSC)

   bits/khz    channels
   ------------[1]---[2]---[6]---[8]
   16/48       678   365   128   97
   24/48       475   250   86     -    
   16/96       365   190    -     -        
   24/96       250   128    -     -

PAL capacities are just a tiny bit less.
Go to the top of the page
+Quote Post
kaoruAngel
post Aug 25 2006, 09:29
Post #19





Group: Members
Posts: 23
Joined: 27-May 05
Member No.: 22323



11.3 hours? ohmy.gif
Oh my... I really don't know what I'd do with all that capacity.
Hmm, on second thought, maybe I do. That's the perfect duration for the storage of a sunset-to-sunrise dance mix! biggrin.gif Here in Miami, that is almost precisely the length of time from dusk till dawn at this time of year (http://www.timeanddate.com/worldclock/astronomy.html?n=156). Coincidence? I think NOT.

Thanks, aval, for doing the math for me.

kaoruAngel
the nocturnal
Go to the top of the page
+Quote Post
Patsoe
post Aug 25 2006, 10:15
Post #20





Group: Members (Donating)
Posts: 591
Joined: 11-February 03
From: UK
Member No.: 4952



QUOTE (kaoruAngel @ Aug 25 2006, 09:29) *
11.3 hours? ohmy.gif


That's for mono recordings wink.gif
Go to the top of the page
+Quote Post
webvan
post Nov 22 2010, 10:18
Post #21





Group: Members
Posts: 1
Joined: 22-November 10
Member No.: 85903



QUOTE (Shifty @ Aug 5 2006, 12:25) *
1) When using "seamless" and "indescrete" modes, there were pops between every track as it changed tracks

2) I tried the "discrete" setting, but it crashed twice (have not tried the "none" mode yet)


Been a while but I wonder if that got resolved because I was told about lplex today to burn the Hi-Res 24/96 Paul McCartney "Band on the Run" I recently purchased and have the exact same problem.

Config is a Quadcore PC with Vista x64.

Thanks !
Go to the top of the page
+Quote Post
litobispo
post Jan 21 2013, 11:14
Post #22





Group: Members
Posts: 1
Joined: 18-January 13
Member No.: 105986



used and tested this software many times and it work wonders....highly recommended for audiophiles who want to back up their files unto DVD-R and would play on any stand alone DVD players... biggrin.gif
Go to the top of the page
+Quote Post

Reply to this topicStart new topic
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:

 



RSS Lo-Fi Version Time is now: 25th December 2014 - 13:43