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Re: Multitrack Recorders

Subject: Re: Multitrack Recorders
From: Dan Dugan <>
Date: Fri, 21 Nov 2003 15:00:55 -0800
Rich Peet, you wrote,

>But if you already own a mult-channel editor (ie Audition) there is
>no problem at all in getting 5 mins of sound with two unlike consumer
>MD recorders to sync and sound ok.  I can record 2 channels on a mz-
>r90 and 2 channels on a mz-r55. Then in post I can easily match them
>for a period over 5 mins.

Sharon Perry and I recently did a test recording with two MD's, 
haven't tried to post it yet. Motion picture experience with 
post-synch of DAT recorders has been that most are usable over a few 
minutes length. Generally we're not looking for phase-accurate 
imaging between front and rear pairs, at least not the way we want it 
between L and R.

>I can rip out the <100 cycles and mix that
>to its own channel

Don't bother with that, no need for it. Playback systems will route 
the low band below the satellite speakers to the sub, it's called 
bass management. LFE material in the recording is only needed for 
effects that would overload the main channels. The LFE channel has 
10dB more gain and is supposed to have 10dB more headroom to 
accommodate very loud LF effects.

>and mix two of the channels together for the
>center and there you have it. 5.1 channels.

You can leave the center out, too, if there's nothing unique in it. 
I'm thinking the center is a good place for dish/shotgun tracks along 
with multichannel ambience on the other four channels.

>But for me I am really only interested in 4 full channels right now.

Should give excellent surround as-is.

-Dan Dugan




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