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monitoring consumer dvd's through my PT rig??help....
Old 11th September 2002
  #1
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cajonezzz's Avatar
 
🎧 15 years
monitoring consumer dvd's through my PT rig??help....

In my effort to get familiar with the surround world, I'm wondering how it would be possible to monitor the 5.1 audio from a DVD through my Pro Tools hardware. To essentially be able to A/B Mixes in progress on the PT rig against films and other stuff utilizing 5.1.
Last night the wife and I sprung for a little Sony all in one DVD surround system called the "Dream System" . I't was our first experience outside a theatre with surround. Yikes, I'm never leaving the living room. (first purchace was Lord of the Rings. yuktyy

M Wagener, can you suggest a 5.1 package system monitors) that would work in a smallish 11' X 11' room? so far the Mackie 624's, Genelec 1029's, Blue Sky's , and the Dynaudio Air system have been suggested by the local shop, none of whom have any real world experience with surround.
Old 12th September 2002
  #2
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cajonezzz's Avatar
 
🎧 15 years
anyone?
Old 12th September 2002
  #3
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C.Lambrechts's Avatar
 
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No, you cannot.

Well yes you can but it's a hassle and illegal on the side too .... tut tut tut

the surrounnd audio on a DVD is encoded into a file format that's called AC3.

You would have to rip those AC3 files from the DVD and tranform them into 6 seperate mono files and import those into ProTools. Quite a hassle if you ask me.

On the other hand what you can do is listen to them the way you would listen to a audio CD. That is by taking the audio outputs from the DVD player and inputting them into your monitoring system through a console or into the PT interfaces or whatever way you input sound into your setup.

If your DVD player has 6 analog outputs this is quite easy .... if they're digital, you have to go through a decoder, like a some commercial pre-amplifiers will do etc etc.


I hope this helps , if not .... describe your setup.





I hope this helps. If this is not clear, describe your setup in detail and how you want to listen to them.
Old 16th September 2002
  #4
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🎧 15 years
Quote:
If your DVD player has 6 analog outputs this is quite easy ....
That's how I do it. I don't usually even hook up the video part. I don't think the sony "Dream" system has six analog outs though. I bought a $180 DVD-audio player and just routed that into my surround system in my control room. I believe if its got the DVD-audio logo on it - it has to have six analog outs capable of 24-96 DA conversion - plus it decodes it for you too. My cd's play better out of it than my old player as well - its also a usefull test device to make sure your clients products will play in a DVD player.
Old 17th September 2002
  #5
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cajonezzz's Avatar
 
🎧 15 years
Quote:
I bought a $180 DVD-audio player and just routed that into my surround system in my control room.
Thanks for the reply. Could you detail how you've routed the DVD audio to your rig and what make the player is ? thanks again, craig
Old 17th September 2002
  #6
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🎧 15 years
The unit is a DVD-RA60

My routing may not help you much. I simply route each of the six outputs from the player to a channel on my DMX-R100. I have a snapshot for the DMX that takes this six inputs and routes each to its own respective speaker (Left to Left speaker only, Right to right, Center to center, Sub to Sub, Ls to Ls and Rs to Rs).

I use five JBL LSR28's + the matching sub for my surrounds. I don't have a bass management system (other than the insufficient one in the JBL subwoofer). I need to get one (I wish the sony mixer had one built in).

If you plan on mixing in surround you don't have a surround mixer, you'll either need to get one or get a surround speaker controller. One benefit of the Air system is that it has these built in.

I've not mixed in surround for an actual release yet - but I've been working on it and recording extra channels for surround in selected tracking sessions.
Old 17th September 2002
  #7
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cajonezzz's Avatar
 
🎧 15 years
Quote:
If you plan on mixing in surround you don't have a surround mixer, you'll either need to get one or get a surround speaker controller. One benefit of the Air system is that it has these built in.
I'll be mixing in Pro Tools (for now) . Assumed that I could just route the 6 channels from 888/882 directly to powered speakers. Is this not the case?
could you explain "bass management" or possibly point me to an explanation on line...thanks again, Craig
Old 18th September 2002
  #8
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🎧 15 years
I am not the surround guru simply because I know how to listen to DVD-audio.
OK - so I own a surround capable studio too - but I digess.

Trust me, you'll really need a hardware volume knob that is between the proTools output and the speaker inputs.

A simple explanation of bass management. Consumer systems (like the one you bought) have built in bass management systems that redirect low end from each normal speaker to the sub-woofer - normally the cross-over point is 80hz. This is similar to Bose style stereo systems that have two small satellites for the highs and mids and redirect the lows to a single subwoofer. If you don't use a bass management system when you mix - and then the listener does use a bass management system when they listen - you potentially have all kinds of low end errors in your mix that they can hear and you couldn't. Therefore, your subwoofer has two jobs : 1 as the monitor for LFE only material 2. as the low end driver for the entire mix through bass management.

I hope not to offend - but it sounds like you don't know much more about surround than those salesmen. Get a hold of some copies Surround magazine (its not the greatest, but is of some use). Try to read some essays by Tomlinson Holman. Educate thyself before spending lots of dough.

http://www.surroundpro.com/
Old 18th September 2002
  #9
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cajonezzz's Avatar
 
🎧 15 years
No offense taken! and thanks for the reading suggestion..did a search for T. Holman and have come up with days of reading...
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