My method during the DAT era was one minute of 1kHz from the boards at -15
followed by one minute of digital black. So two minutes before audio
starts. It seems that my 7050 has mechanical issues after spending 6 years
in storage. At the beginning it would accept a cassette and eject it
immediately, then it would accept it and extract the tape and stop with an
error 2-20 or 2-50. Now the cassette is kept hostage inside with the tape
wrapped around the head. I hope my tech can revive it. It’s a spare deck so
I will not spend to much time on it. Or money.
On Sat, 16 May 2020 at 6:21 Corey Bailey <[log in to unmask]> wrote:
> Hi Gary,
> Good point!
> At MGM we used to leave 1 minute of blank (Digital Black, actually)
> then, TC started at 57 minutes with 30 seconds of 1K @ -20DBFS, then
> modulation started at the top of the hour. So, there was, at least, 4
> minutes before audio started on any given DAT. The DAT tape was
> pre-striped and the deck was put in Chase mode, locked to a TC generator
> (locked to house sync) . For DA88's we used to buy them pre-formatted
> (Tascam brand, IIRC) and then pre-stripe the TC to the MGM format. To
> record audio on a DA88, we used the same method as DAT's.
> Corey Bailey Audio Engineering
> On 5/15/2020 4:17 PM, Gary A. Galo wrote:
> > Corey reminded me of something I forgot to mention - I always recorded
> one minute blank on my DAT tapes before I began recording a concert. That
> first minute is were problems can occur.
> > Best,
> > Gary
> > -----Original Message-----
> > From: Association for Recorded Sound Discussion List <
> [log in to unmask]> On Behalf Of Corey Bailey
> > Sent: Friday, May 15, 2020 6:45 PM
> > To: [log in to unmask]
> > Subject: Re: [ARSCLIST] [EXTERNAL] Re: [ARSCLIST] DAT collection
> > Hi All,
> > I wanted to echo the same experiences with some SONY DAT tapes & some
> AMPEX brand. Only, I experienced the playability problems on Sony machines,
> both 7030's & 7040's. Basically, the error rate would exceed what the
> machine could handle. Most of the time, it was for the first minute, or so,
> of the tape The (so called) high resolution formats were another story.
> Very finicky. One word of caution: Learn to hear what a good tape sounds
> like during the exercising process. If you happen to run across a tape that
> has gone SSS (they do exist), you may ruin your machine if you try to play
> it. You will, at least, wind up with a real cleaning job.
> > FWIW: I lump ADAT's, DAT's, DA88's, etc. into a category known as
> "Rotary Head Digital Audio." The DA88 format is also a long story unto
> > The rest of the advice that has been posted is spot on (IMHO).
> > Best,
> > Corey
> > Corey Bailey Audio Engineering
> > www.baileyzone.net
> > On 5/15/2020 2:53 PM, Gary A. Galo wrote:
> >> Over the many years I recorded concerts on DAT I used Maxell, BASF,
> Sony and TDK. The only problems I had were with a couple of Sony tapes in
> the old Panasonic SV-3700 machines. I never had an problems with Sony tapes
> in their own PCM-R500 machines. My practice was to always run two machines
> simultaneously, using two different brands of tape. That way, if I got a
> bad batch of tape, my butt would be covered. There are a couple of concerts
> I would have lost if I had not done this, and in each case it was Sony tape
> in a Panasonic machine. One of those was a Crane Wind Ensemble concert -
> there would have been a lot of unhappy people the next day if I had only
> run one machine. As it was, no one knew anything was wrong.
> >> When I scrapped DAT and began recording with Tascam DV-RA1000HD
> recorders, I still ran two machines at one. I have always believe that,
> with digital audio, redundancy is your best defense. It worked for me.
> >> Best,
> >> Gary
> >> Gary Galo
> >> Audio Engineer Emeritus
> >> The Crane School of Music
> >> SUNY at Potsdam, NY 13676
> >> "Great art presupposes the alert mind of the educated listener."
> >> Arnold Schoenberg
> >> "A true artist doesn't want to be admired, he wants to be believed."
> >> Igor Markevitch
> >> "If you design an audio system based on the premise that nothing is
> >> audible, on that system nothing will be audible."
> >> G. Galo
> >> -----Original Message-----
> >> From: Association for Recorded Sound Discussion List
> >> <[log in to unmask]> On Behalf Of Scott D. Smith
> >> Sent: Friday, May 15, 2020 5:42 PM
> >> To: [log in to unmask]
> >> Subject: [EXTERNAL] Re: [ARSCLIST] DAT collection
> >> This message did not originate from SUNY Potsdam or one of its trusted
> senders. Do not open attachments, click on links, or provide your
> credentials if the source is suspicious.
> >> Generally, the major manufacturers made pretty good tape. As pointed
> out by others, one of the biggest issues is poor storage, and not fully
> winding the tape to either the beginning or the end. And once the tape is
> damaged, that's pretty much the end of it.
> >> The only bad run we ever saw was around 1998 or so, when we did
> production dailies transfers for a major movie, and experienced a
> significant number of Ampex tapes with defective shell housings, which
> caused the tape to bind up and trigger the tension sensors on the deck.
> >> They changed brands quickly once we notified them of the problems, so I
> don't know how widespread it was.
> >> During the time period I did DAT recording for production sound, we
> used mostly BASF and Maxell tapes, along with some 3M and Fuji. The few
> problems I encountered during that period mostly related to the shell
> housings, as opposed to the tape itself.
> >> As you are probably aware, there can be a big difference between decks
> when it comes to compatibility, which is a whole different can of worms!
> >> --S
> >> Scott D.Smith CAS
> >> Chicago Audio Works, Inc.
> >> On 5/13/2020 8:51 AM, Shai Drori wrote:
> >>> Hi all
> >>> I have a collection of DAT tapes that I need to digitize that
> >>> consists of tapes from Ampex, Fuji, HHB, Maxell, and Sony. Has anyone
> >>> run into trouble with any of these in the past? It has been a few
> >>> years since I had such a collection and I do not want to ruin my PCM
> 7050 with a bad tape.
> >>> Cheers
> >>> Shai Drori
> >>> Expert digitization services for Audio Video 3K scanning for film
> >>> 8mm-35mm Timeless Recordings Music Label www.audiovideofilm.com
> >>> [log in to unmask]
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