24 bit audio on dvd?

[bassgoonist]

Is there an audio format I could put on a dvd that is 24 bit? My friend has an amp with a dvd player built in and it has a 192/24 DAC and I'm wondering if there's anyway I could get 24 bit audio to play on it.

[bassgoonist]

Well, I have the raw mlp track...but muxman doesn't seem to know what that is...

[specise_8472]

You will have to use DTS 96/24 format for DVD-V
IF you can play Audio DVD format on your player, you will need a program such as Crome to author an Audio DVD with MLP.

[bassgoonist]

I have the dvd-a disc...so if that was an option I wouldn't bother with all this :-p

[guada2]

@specise_8472
you will need a program such as Crome to author an Audio DVD with MLP

" CROME " Where can i find it?
Google no...

Bye.

[bassgoonist]

I have a friend who has the DTS HD encoder, perhaps he can help :D

[Midzuki]

@specise_8472
you will need a program such as Crome to author an Audio DVD with MLP

" CROME " Where can i find it?
Google no...

Bye.

discWelder CHROME, @ minnetonkaaudio DOT com.

[Slogra]

About DTS 24/96. Why would you want a format with 24bit/96khz that is LOSSY?? It sounds completely useless to me. Any advantages over 16bit/48khz will surely be lost by its lossy nature.

It should be possible to create a 24/48 or 24/96 PCM track. Check wiki http://wiki.multimedia.cx/index.php?title=PCM#DVD_PCM

[SomeJoe]

About DTS 24/96. Why would you want a format with 24bit/96khz that is LOSSY?? It sounds completely useless to me. Any advantages over 16bit/48khz will surely be lost by its lossy nature.

It should be possible to create a 24/48 or 24/96 PCM track. Check wiki http://wiki.multimedia.cx/index.php?title=PCM#DVD_PCM


You can place 96 kHz / 24 bit audio in PCM, but this is not legal on DVD. If you use a PCM track on a DVD, it is limited to 48 kHz, 16 bit, 2 channel.

DTS 96/24 is lossy, yes, but how much you lose is dependent on the audio itself. Certain audio passages that are not difficult to compress can be nearly lossless, while others may lose a decent amount of fidelity. To determine if DTS 96/24 would be detrimental to his audio content, he would have to perform his own ABX tests.

But if he's set on putting 96 kHz 24 bit audio on DVD, the only way to do it is DTS 96/24.

Also remember that standard 1510 kbps DTS is nearly transparent for 48 kHz 16 bit 5.1 audio. If he is encoding 96 kHz 24 bit, but only 2 channel, DTS should also be nearly transparent:

Compression factor for 48/16/5.1: 48000 * 16 * 6 / 1510000 = 3.05.

Compression factor for 96/24/2: 96000 * 24 * 2 / 1510000 = 3.05.

[guada2]

OK ...discWelder CHROME

:thanks:
Midzuki

[bassgoonist]

I'm pretty sure I'd take a good lossy 24 bit source over a 16 bit lossless source for playback purposes...

[leeperry]

I'm pretty sure I'd take a good lossy 24 bit source over a 16 bit lossless source for playback purposes...
wow, you listen louder than 96dB, great! :devil:

[bassgoonist]

Listen louder than? What are you talking about. It represents the difference between the lowest possible noise and the loudest possible noise. And that's under ideal conditions...I'm not sure where it starts. But lets just say it starts at 0, well...I'd think 96 would be BARELY enough room.

[leeperry]

lets just say it starts at 0, well...I'd think 96 would be BARELY enough
so you do listen louder than 96dB, watch out for your ears!

[bassgoonist]

Are you even reading what I'm saying? It's giving more room for dynamic contrast. Actually reproduction volume is irrelevant. If they play something at 96db, and then crescendo to 120...you're not going to hear any difference with 16 bits. Lets say your system is set at a max volume of 80db. Well, at 16 bit it would crescendo from 80 to 80. But at 24 bit it could go from like 53 to 66 or so. At least that's how I understand it.

[leeperry]

good point...but there's no bit depth in lossy audio AFAIK.

[nurbs]

Yes, lossy audio doesn't have a fixed bit depht.

@bassgoonist:
I don't know much about audio, but I'm sure you vastly overestimate the effect going from 24 to 16 bit has on the dynamic range. While the numbers are correct, it isn't audible in practice since the result of dithering from 24 to 16 bit is not the loudest noises being cut to some lower volume as you describe it. If it was truly that way the 16bit and 24bit versions of files should be easily distinguishable if they have a certain dynamic range, but they generally aren't. The consensus on hydrogenaudio seems to be that while 24 bit is important during the mastering it's impossible for most people to notice a difference in a blind ABX test even with special samples. You'd basically have to listen at a volume that damages your hearing with near perfect speakers and even then it's unlikely you'll hear a difference.

http://www.hydrogenaudio.org/forums/index.php?showtopic=12108
http://www.hydrogenaudio.org/forums/index.php?showtopic=49843

[bassgoonist]

Hmm, well, this are quite extraordinarily good recordings of the 9 beethoven symphonies. Lots of dynamic contrast...I dunno...:-S

[nurbs]

Dither them down to 16 bit with eac3to and do an ABX test with foobar2000 then you'll know.

[bassgoonist]

So apparently iTunes has some sort of high pass filter built in. Everything else I try to play these with gives me this terrible hissing noise. I looked at the file and there was all sorts of noise above 25khz. Not sure why I can hear it or whatever...but if I downsample to 44.1 or play in iTunes it works fine...still fiddling with trying to figure out why that noise is there.

[kolak]

As far as I remember 24bit/96kHz (but 192kHz not) 2.0 track can be used on standard DVD. You need Pro authoring software to do this. 2.0 24bit/48kHz is not a problem at all- there are quite few DVD like this.

For 2.0/192kHz or surround 96kHz tracks you need to do DVD-A (DVD-Audio) disc with MLP lossless compression. You also need special plyer, which does support DVD-A discs- they are not so common.
It's probably better to do BD disc now.

Andrew