DAT-heads Digest #375

Contents:
  Link Wray Taping ("Sherm Clow")
  blumlein matrixing for surround... ("john e. bogus")
  3:1 Rule  ("john e. bogus")
  ISO orbaddict/gavin (TRANEHEAD@aol.com)
  ISO OADE 7-pin to in/out coax (dave n)
  Clock speed of Sony M1 observation / question ("Gunther Wandtke")


From: "Sherm Clow" <sclow@utah.gov>
Subject: Link Wray Taping
Date: Fri, 28 Jan 2005 10:40:33 -0700

If his wife is with him, and she usually is, she will rip you a new one
if you try to tape.  But if you manage to get anything good, let me
know.



From: "john e. bogus" <bogusisme@surfbest.net>
Subject: blumlein matrixing for surround...
Date: Fri, 28 Jan 2005 13:00:12 -0500

"I too have heard that Blumlein will "expand" or "decode" into surround.
One
of the commercial releases I recorded has tracks recorded with a Blumlein
pair if anyone wants to check it out (I don't have such a system, so I can't
offer an opinion).  Buying the CD is much cheaper than buying the
microphones or a surround system..."

Sure it is....but unless you DO have either an old-school quad decoder, a
surround processor that will perform synthesis, or some other means (such as
computer software or a mixer capable of performing the required phase
inversions, additions, and subtractions) of decoding the matrix by
extracting the out of phase information and placing it properly in the rear
channels, then all you'll get is regular stereo.....and it's impossible to
get surround sound reproduction from two channels, you'll need a surround
system (4-6 channels of amplification and speakers) to listen to any type of
surround sound, there's no getting around it!

Yours Truly,
john e. bogus





From: "john e. bogus" <bogusisme@surfbest.net>
Subject: 3:1 Rule 
Date: Fri, 28 Jan 2005 13:00:03 -0500

"But look what happens when he theoretically places himself 8-12 feet in
front of the stage; the distance based on microphone geometry and the 21'
stack spread.  The 3:1 rule suggests walls should be 24-36 feet away.  This
sounds much more like a small club."

     Hey, that sounds great in theory!  Too bad that position in the venue
(especially the small ones) is determined more by where you're allowed to
set up, and where your stand won't get kicked, bumped, or knocked over at a
crowded, rowdy show, rather than where the acoustics and geometry are
optimal.....at many of the shows I tape, 8-12 feet back from the stage would
place me directly in the center of the 'mosh pit' at worst, or the middle of
a crowd of arm waving, headbanging, screaming, staggering drunks at
best.....THIS sounds much more like a small club, at least the ones I go
to.....
     My "3:1 rule" is unless the venue staff confines you to a back corner
or a balcony, set up safely in front of the soundboard, that way you can
easily keep a good lookout in THREE directions and take protective action if
necessary, rather than have some completely loaded dude twice your weight
come up behind you and mow down everything in his path (including you and
your gear) in his mad, drunken rush to get to the stage when the band starts
into his favorite song, because there's at least ONE of those types at every
show.....

Yours Truly,
john e. bogus




From: TRANEHEAD@aol.com
Subject: ISO orbaddict/gavin
Date: Fri, 28 Jan 2005 16:26:37 EST

hey just trying to get in touch re: luke etc...
thanks,
Geoff



From: dave n <davenolanaudio@earthlink.net>
Subject: ISO OADE 7-pin to in/out coax
Reply-To: dave n <davenolanaudio@earthlink.net>
Date: Fri, 28 Jan 2005 19:45:19 -0500 (GMT-05:00)

SSIA - I lost my Oade cable - wondering if anyone out there is no longer using their M1 or D8 who would like to sell me their old cable...

Thanks in advance if anyone has one of these available...

dave nolan
nyc



From: "Gunther Wandtke" <gunterw@iprimus.com.au>
Subject: Clock speed of Sony M1 observation / question
Date: Sat, 29 Jan 2005 23:05:08 +1100

I timed the clock speed of my Sony M1 today while it was recording under
battery power (lithium batteries) with a stop watch, and found that the
track recording time is actually too fast ! About 20 seconds too fast for a
recording time of 15 minutes. (Meaning the clock shows a recording time of
15' 20", while it has only recorded 15 minutes of sound)
I then timed the playback of my Tascam DA 20 Mk II, which I use for
transfering recordings to my harddrive, this one was spot on !
While assuming so far, that DAT recordings are a safe way to get time and
pitch accurate recordings it appears now that I'll have to correct both time
and pitch of my recordings.
The interesting thing is, that the internal clock of the M1 appears to work
accurately while in standby mode, the observed acceleration only occured in
recording mode. I'd like it if some of you could replicate this experiment
and report your findings to this list, to give a clearer picture of the
timing accuracy of portable DAT recorders.

Gunter



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