SACD and Music videos

Paul Kievits · Post by **Paul Kievits** » Thu Aug 22, 2002 3:50 pm

Perhaps some (probably most) of you have heard of the new audio format that's going to whoop the CD's ass in the near future. SACD. I was curious of how music videos were going to adapt to this new phenomenon, since the sound is much sharper files will probably get bigger as not to have too much loss I guess. The most intresting thing will probably be the multi-channeling, instead of two output channels you get five. This will probably make timing a lot harder but could ultimatley add to the videos quality.

So what do you think, when and on what scale and how will AMV's adjust to SACD?

Vazor · Post by **Vazor** » Thu Aug 22, 2002 3:52 pm

Any idea what SACD stands for (it's probably so obvious I'll kill myself for not thinking of it, but I wanna know)?

FurryCurry · Post by **FurryCurry** » Thu Aug 22, 2002 4:12 pm

Super Audio CD.

I really don't think that its going to make much difference for videos encoded for online distribution, and those are pretty much all using some sort of less-than-CD-quality compression, and I doubt that will change much until we all have fiber into our houses.

I question the need for higher than CD quality anyway. Most typical speakers, and most typical people, for that matter, can't really get much benefit, if any, out of even higher fidelity.

Multichannel audio might be a different story, but I'm going to keep my cash instead of spending it on high priced two channel discs and players I doubt I'll really benefit from.

Vazor · Post by **Vazor** » Thu Aug 22, 2002 4:19 pm

*Vazor kills himself

DJ_Izumi · Post by **DJ_Izumi** » Fri Aug 23, 2002 5:19 am

Well now, here comes the major problem. SACD uses are much high resolution (sample rate) then CDA. (Compact Disk Audio, the normal CD). CDA uses 44.1khz, DVD uses 48khz, I think SACD uses 96khz? Anyway, most of our sound cards can't play at sample rate higher then 48khz. Besides, you're ears and mind can't tell that a CDA isn't real sound, SACD is just overkill, play a CDA and a SACD on the same speakers, and with the same mix down, you won't notice the difference. Trust me.

AbsoluteDestiny · Post by **AbsoluteDestiny** » Fri Aug 23, 2002 6:00 am

It's a stupid thing to compare because we dont use uncompressed audio.

All our audio goes through a fourier series compression so instead of having samples you have an equation which tries to mimick the pattern of those samples. So it's pointless talking about 96khz audio unless you are using uncompressed - which would be just HUGE and pointless.

As for multichannel audio, that already exists and in a compressed form. Ogg Vorbis supports multichannel as does AC3 and DTS, all of which we can already use if we want to but we don't because our source isn't multichannel, usually.

DJ_Izumi · Post by **DJ_Izumi** » Fri Aug 23, 2002 6:02 am

AD is right. At the most SACD will be a pain to rip.

Paul Kievits · Post by **Paul Kievits** » Fri Aug 23, 2002 6:48 am

I agree that it has no practical use for internet distribution, compression is everything on the internet.

BUT... what about DVD's which are sold at conventions and actual convention submissions, now there you can use MPEG2 and you don't necessarily have to compress audio. Wouldn't it be intresting for that kind of use?

DJ_Izumi · Post by **DJ_Izumi** » Fri Aug 23, 2002 6:53 am

Of course not. DVD's use 48khz audio, and all DVD players have a compliance requirment. If you add something new, the old DVD players won't support the DVD's with some freakish useless audio format. And thus, a great many DVD players would become useless. Actually -all- existing DVD players, excluding those that can play SACD's currently (And proabbly not all of them even) wouldn't be able to play the disks. They're still working on replacing VHS. DVD's standard is sticking around for a few good many years. You have to remember, these are console devices, you can't download new softwear, and you definatly can't give it media with information that the DAC couldn't even play back. It's a very very bad idea to use it DVD's.

Look. 44.1khz PCM audio is JUST FINE, we don't need new stuff, because it's already beyond our human abilities to know the difference in the first place. It's just the comsumer world wanting you to buy a new music CD player.

Paul Kievits · Post by **Paul Kievits** » Fri Aug 23, 2002 7:31 am

Oops my bad. ^_^

Seems like SACD will have no impact on the AMV scene whatsoever for years to come then...