I helped transfer a 1/2” Dictaphone tape from the Manhattan Communications Dispatch of the NYC Fire Dept. for the 9/11 Commission. It was 20 discrete tracks plus time code. We absolutely needed that machine to get everything off that reel we needed, with the corresponding time stamps. Supposedly you could bitmap the time code, but I haven’t actually seen it done.
On Tue, 25 Jun 2019 19:30:04 -0400, Richard L. Hess <[log in to unmask]> wrote:
>I believe 1/2-inch Dictaphone was 10/20 tracks and 1-inch was 20/40
>tracks, but I've never put together a comprehensive listing of logging
>track formats. Each manufacturer seemed to have a different track
>configuration (and steps). I started at one point and maybe I should
>research it sometime.
>My logging machines went to Chris Brown a couple of years ago and I was
>glad to get rid of them. I did save some of the heads if you're up to
>mounting them. I'm pretty certain I have a 20-track head assembly. The
>courtroom playback machines were a 40-channel mixer and one output. I
>did some preliminary work to provide 40 outputs and gave that to Chris.
>I don't know if he's implemented that.
>You do know that one 10.5-inch reel of logging tape (typically 3600
>feet) holds about 25 hours of material...and with 20 tracks, that's 500
>hours of audio!
>Speed was almost universally 15/32 in/s.
>The timecode can be read with a reader if you have one, but I've had
>success reading IRIG timecodes in the DAW by actually reading bits.
>I've never seen a bitmap for the Dictaphone time code.
>On 2019-06-25 5:41 p.m., Shai Drori wrote:
>> My machine is 1" 40 tracks. Is it possible that the 1/2" will be 20 tracks?
>> Shai Drori
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>> On Wed, Jun 26, 2019 at 12:38 AM John Schroth <[log in to unmask]>
>>> Does anyone on this list have the ability to transfer 1/2" open reel
>>> audiotape recorded on a Dictaphone 4000/5000 machine. I believe it is 12
>>> tracks. I have a local law enforcement agency that is looking to have a
>>> tape digitized. Were there other track formats than 12 for these machines?
>>> Kind Regards,
>>> John Schroth
>>> Media Transfer Service, LLC
>>> High Quality Conversion Of:
>>> Video - Audio - Motion Picture - Still Image
>>> Phone: 585-248-4908
>>> Web: www.mediatransferservice.com
>>> Find out what's new at MTS:
>Richard L. Hess email: [log in to unmask]
>Aurora, Ontario, Canada 647 479 2800
>Quality tape transfers -- even from hard-to-play tapes.