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Topic: Car headunit lacks DVD-Audio logo, but plays DVDs (Read 7380 times) previous topic - next topic
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Car headunit lacks DVD-Audio logo, but plays DVDs

So Lincoln and Ford are claiming that their cars can play DVD-Audio discs, when they really mean audio DVDs. I hadn't realized their mistake until after I purchased a 5.1 DVD audio disc for the 5.1 surround sound system in my 2010 Lincoln MKZ (it even lacked the DVD Audio logo-- DUH!). Obviously the disc didn't play.

But I think I might have a solution to this. Since this DVD-Audio disc is 24 bit/96 khz, this would require MLP. But all car headunits play CD audio discs just fine, and those CD audio discs are encoded to PCM. I discovered online that DVD-Audio discs can be encoded to purely PCM only if it's 24/48 or 16/96.

So I'm thinking of ripping the DVD-audio disc and downsampling the sample rate to from 96 to 48 and the reburning all of the files as PCM files. Shouldn't my car be able to play it after this?

Thanks in advance.

Car headunit lacks DVD-Audio logo, but plays DVDs

Reply #1 –
Any audio can be converted to PCM (though I imagine some formats, e.g. SACD, require more work).

You didn't specify what you intend to burn the converted/decoded files to. You mentioned audio CDs, which are 44.1 kHz and 16-bit only. As for 'audio DVDs', I'm not sure of the maximum parameters they support, but if you create one within those supported by your player, I don't see why it wouldn't work.

That's bad advertising, though.

Car headunit lacks DVD-Audio logo, but plays DVDs

Reply #2 –
I plan on burning them to DVD-R's since I'd have no choice with such high sample rates/bit depth.

Also, I think my headunit may be able to decode wav files since it can do mp3.

Car headunit lacks DVD-Audio logo, but plays DVDs

Reply #3 –
As part of your aim seems to be to fit as much music on one disc as possible and you have to convert the incompatible files anyway, why not just convert them straight to MP3 and be done with it?

I have a DVD-R sitting here that holds my favourite 150 CD albums in perceptually transparent (to me) MP3. How much more than that would you need to carry with you if you couldn't tell it from the original?

Car headunit lacks DVD-Audio logo, but plays DVDs

Reply #4 –
Two things:

1) Not all devices that can play MP3s can play (or rather, will *allow* the device to play) WAVs...rather ironic, really.

2) I'd be quite surprised if the audio system could actually play multichannel WAVs.  My guess is that you would have a better chance at getting 5.1 playback by encoding to Dolby Digital, i.e. AC3, and authoring a standard video DVD-R.  Somewhere in the owner's manual they *should* list all the formats the system can play...
"Not sure what the question is, but the answer is probably no."

Car headunit lacks DVD-Audio logo, but plays DVDs

Reply #5 –
Two possibilities if you can decode the 5.1 MLP DVD-A content (that exercise is left to the reader):

1. Encode as 6-channel PCM (16/24-bit, 48/96kHz, up to 6144 kbit/s), which is supposedly supported by the DVD-Video standard.
2. Encode as 6-channel DTS or AC3 and accept the lossless encoding.

Car headunit lacks DVD-Audio logo, but plays DVDs

Reply #6 –
I presume you meant to say "lossy"?

Car headunit lacks DVD-Audio logo, but plays DVDs

Reply #7 –
Quote
So I'm thinking of ripping the DVD-audio disc and downsampling the sample rate to from 96 to 48 and the reburning all of the files as PCM files. Shouldn't my car be able to play it after this?
Your best bet is to go with something standard, which means audio CD or "video" DVD.  (Blu-Ray is also standard, but apparently your player does not play Blu-Ray.)

CDs are easy (assuming you can decrypt and decode the DVD).  But they are stereo, and I assume you want multi-channel digital surround...

In order to create the standard DVD file structure, you'll need a DVD Authoring Program[/u].  Then, you can make an "audio only" DVD or a "slideshow" DVD.  Typically, you'd have a normal DVD menu and there would be a "slide" for each song and the image would include the text of the song title...  The "image" can simply be an image of text with a blank background.

Quote
I plan on burning them to DVD-R's since I'd have no choice with such high sample rates/bit depth
The video NTSC DVD standard (North America) allows 2 formats. LPCM stereo or Dolby AC3 (1 to 6 channels).  All NTSC players are required to play these formats.  PAL players (most of the world) are also required to play MPEG-2 audio.  Many DVD players can play additional audio & video formats, but if you want your DVD to play on "all" DVD players, it should conform to the standards.

Most DVD authoring software is going to limit you to 48kHz stereo LPCM or 48kHz Dolby AC3.  So at some point, you'll need to downsample and transcode the audio.  Depending on what software you choose, your DVD-Audio ripping program, or your DVD-authoring program might be able to make the conversion, or you may need some 3rd-party tools.

Car headunit lacks DVD-Audio logo, but plays DVDs

Reply #8 –
As for authoring, let me suggest "Audio DVD Creator".
Supports AC3 2.0/5.1 @96-640kbps and PCM 48/96kHz @16/24bit.
Just perfect!
 

Car headunit lacks DVD-Audio logo, but plays DVDs

Reply #9 –
Quote from: thenightmancometh on
So Lincoln and Ford are claiming that their cars can play DVD-Audio discs, when they really mean audio DVDs. I hadn't realized their mistake until after I purchased a 5.1 DVD audio disc for the 5.1 surround sound system in my 2010 Lincoln MKZ (it even lacked the DVD Audio logo-- DUH!). Obviously the disc didn't play.


You sure about it was their mistake?

THX advertises THX II for autos as providing
"True 5.1 surround sound plays from DVD-Audio discs and DVD Movies."  That sure sounds like they mean 'DVD-Audio' to me, not HDAD or DAD  (audio-only DVD formats that predated DVD-A, were PCM only, and did not offer surround).

Are you sure you have THX II? Some of the THX audio packages in those cars do NOT include DVD-Audio .  Here's from Brent Butterworth's review of the Lincoln MKT I: 
"The MKT I drove was equipped with a $3,000 upgrade package that includes DVD-Audio playback (remember those?), 5.1 playback, navigation, collision detection, and an indicator that tells you if someone's in your blind spot. The standard THX package with no 5.1 or DVD-Audio runs a reasonable $700."

For those that do have the full package, the DVD-A logo is there (as a hybrid  "DVD Video/Audio" logo) -- this is from the MKT SUV :




Quote
But I think I might have a solution to this. Since this DVD-Audio disc is 24 bit/96 khz, this would require MLP. But all car headunits play CD audio discs just fine, and those CD audio discs are encoded to PCM. I discovered online that DVD-Audio discs can be encoded to purely PCM only if it's 24/48 or 16/96.


So I'm thinking of ripping the DVD-audio disc and downsampling the sample rate to from 96 to 48 and the reburning all of the files as PCM files. Shouldn't my car be able to play it after this?

Thanks in advance.


Before all that, I'd first  confirm

1) that your system can do 5.1 audio  -- from, say, a regular DVD movie -- or from the DolbyDigital/DTS version on your DVD-A discs (all DVD-A discs have an alternate, lossy audio version on them that can be played by any DVD player)
2) if it does, confirm that your DVD-A problem is not something peculiar about the particular DVD-A you tried.  Most DVD-As are MLP encoded (lossless compressed), a few are uncompressed PCM.

Car headunit lacks DVD-Audio logo, but plays DVDs

Reply #10 –
Quote from: krabapple on
(all DVD-A discs have an alternate, lossy audio version on them that can be played by any DVD player)
Not all...  I only have two DVD-Audio discs.  One of them has Video-DVD audio (data in the VIDEO_TS folder) and the other does not.  I do not have a DVD-Audio player, and I cannot play the DVD that only has data in the AUDIO_TS folder.
 

Car headunit lacks DVD-Audio logo, but plays DVDs

Reply #11 –
Quote from: DVDdoug on
Quote from: krabapple on
(all DVD-A discs have an alternate, lossy audio version on them that can be played by any DVD player)
Not all...  I only have two DVD-Audio discs.  One of them has Video-DVD audio (data in the VIDEO_TS folder) and the other does not.  I do not have a DVD-Audio player, and I cannot play the DVD that only has data in the AUDIO_TS folder.



Which one does not have DD/DTS tracks?  That DVD-A is not up to DVD-A spec,  AFAIK.  They are all supposed to be back-compatible with plain DVD players.

Car headunit lacks DVD-Audio logo, but plays DVDs

Reply #12 –
Quote
Which one does not have DD/DTS tracks? That DVD-A is not up to DVD-A spec, AFAIK.
The one I have is Roy Orbison Black & White Night[/color].  It came as a set with the regular full-video DVD, and I assume it's the same program as the video DVD.  (So, I'm not really missing anything.)

The other DVD-Audio disc that I have is  The Beatles Love.  This one has both formats (but no actual video), and it came with an audio CD.

Quote
They are all supposed to be back-compatible with plain DVD players.

I don't think this is required by the DVD-Audio spec...  The DVD FAQ[/color] says:
Quote
DVD-Audio is a separate format from DVD-Video. DVD-Audio discs can be designed to work in DVD-Video players, but it's possible to make a DVD-Audio disc that won't play at all in a DVD-Video player, since the DVD-Audio specification includes new formats and features, with content stored in a separate "DVD-Audio zone" on the disc (the AUDIO_TS directory) that DVD-Video players never look at. New DVD-Audio players are needed, or new "universal players" that can play both DVD-Video and DVD-Audio discs. Universal players are also called VCAPs (video-capable audio players).

Car headunit lacks DVD-Audio logo, but plays DVDs

Reply #13 –
Quote from: DVDdoug on
Quote
Which one does not have DD/DTS tracks? That DVD-A is not up to DVD-A spec, AFAIK.
The one I have is Roy Orbison Black & White Night[/color].  It came as a set with the regular full-video DVD, and I assume it's the same program as the video DVD.  (So, I'm not really missing anything.)


OK, most, but not all, DVD-A discs contain a DVD-V audio version as well. My mistake for assuming back-compatibility was part of DVD-A spec. Every DVD-A I own (a couple of dozen) has a back=compatible DVD-V audio track.