audio over USB v. optical

**scott_fx** · 02-15-2007, 04:56 PM

heh ;-)

you should check out some of the other posts i've made in her threads :-)

**turbocad6** · 02-15-2007, 05:08 PM

**Road_Dog** · 02-15-2007, 08:01 PM

Durwood and Red
What do you see on each of the audio channels?

4 or 5 pairs of redundant stereo channels?
Will any of the channels be virtualize through an effects processor?
Possibly you may be looking for programmability to how each chanal processes the audio?
Or maybe you want to do what Doede did with multiple DACs/CODEC to get better sound?

I can see using the channels as a seperate audio 'zone' where each listener can hear their own audio. Kids music in back is seperate from each other and the front. Now that may have 'resale' value. ???

Full of questions now.

Road_Dog

**turbocad6** · 02-15-2007, 08:20 PM

all x-overs on the pc.... meaning each speaker output independantly adjusted in console for time delay, x-overs & at least 1/3 octave tunning...

1&2= tweeters, 3&4= mid's... 5&6= front subs.... 7&8= rear subs.... rear speakers? who needs em

most will only have a 2 way front stage though & rear fill could be on 5&6...

**Road_Dog** · 02-15-2007, 08:32 PM

Turbocad6
Thanks for the clarity. Now I see that good use of extra channels. I just sent a PM to durwood for help in wrapping my little head around the output issue. I am such a ...

With your set up, if the channels could be expanded then extra specialized speakers could be added later like those nasty horns you stuff into your cars.

I have read on the forum that switching out to ASIO my break a few FEs. Hopefully there are a few readers who can work/program on that layer besides the firmware layer and the hardware level.

Again thanks for the enlightenment.

Road_Dog

**turbocad6** · 02-15-2007, 08:38 PM

np, rr supports it through winamp... volume is an issue though.... IDEALLY anything we come up with as a solution should include a volume control after the dac's.... not to complicate this even more, but this is necissay & should be considered in the initial design I guess....

**scott_fx** · 02-15-2007, 08:48 PM

yeah, that is definately something that shouldn't/can't be overlooked. volume control is a must. is it possible to control it via software w/o involving kmixer? or does this need to be a hardware solution?

**Road_Dog** · 02-15-2007, 09:19 PM

There are chips that can do volume control using I2C commands. That could possibly lead to the computer adjusting the volume via USB. Let me rummage through my bookmarks.

Here are some DACs/CODECs with 8 to 192kHz Sampling Rate for Stereo Audio
http://www.chipidea.com/website/prod...application=34

Cirrus makes multi-channel DACs/CODECs:
http://www.cirrus.com/en/products/pro/techs/T3.html

Road_Dog

**JasonWW** · 02-15-2007, 09:19 PM

Speaking of Kmixer, does anyone know if it is still the big nasty in the new Vista or is the sound quality improved?

Back to the main thread. Thank you.

**Felix509** · 02-15-2007, 09:34 PM

The AudioStack is completely rebuilt in Vista, no more 'BAD Kernal Mixer' per say.. Supposed to be Much Much better quality.

Vista will also do time alignment and subwoofer Xover out of the box..

Vista Sound explained on the Creative forum..

Vista with Pictures.. YEAH!

Here is a 19 page thread about sound in Vista, with special guest that was Head of the department that developed the audio part of Vista..

VISTA Sound

One main question in the thread was if there would be a way to do 'Bit Perfect' and it was never full answered.. It seems ALL audio goes through the AudioStack, but it is very high quality now.