Hello Tom, I Googled Dubbing Industries and only came up with my old field of motion picture dubbing. Do you have a link?
Rod Stephens
--- On Fri, 1/28/11, Tom Fine <[log in to unmask]> wrote:
From: Tom Fine <[log in to unmask]>
Subject: Re: [ARSCLIST] Test tones circa 1978
To: [log in to unmask]
Date: Friday, January 28, 2011, 1:50 PM
Boy now THAT's something you shouldn't hang your hat on!
Shai -- how about a stroboscope wheel in the tape path? That's what I use, just to confirm things are running on-speed. It's made by Dubbings Industries.
-- Tom Fine
----- Original Message ----- From: "Steven Smolian" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Friday, January 28, 2011 4:28 PM
Subject: Re: [ARSCLIST] Test tones circa 1978
> There used to be a guy on eBay selling dubs of test tapes.
>
> Steve Smolian
>
> ----- Original Message ----- From: "Richard L. Hess" <[log in to unmask]>
> To: <[log in to unmask]>
> Sent: Friday, January 28, 2011 3:41 PM
> Subject: Re: [ARSCLIST] Test tones circa 1978
>
>
>> Hi, Shai,
>>
>> You can trust the MRL flutter tapes, not the normal calibration tapes.
>>
>> I think Jay says that some place in the literature.
>>
>> There are better ways to calibrate speed involving long-term
>>
>> Cheers,
>>
>> Richard
>>
>> On 2011-01-28 3:11 PM, Shai Drori wrote:
>>> If I can't trust an MRL test tape for speed accuracy then what options do I have? This is a hot issue for me now since I need to calibrate all machines for speed as well.
>>> Shai
>>>
>>> On 27/01/2011 23:38, Richard L. Hess wrote:
>>>> Hi, Jim,
>>>>
>>>> One thing that I used to do for quick testing was using a Sound Technology 1710A leave it punched on 20 Hz then just go up the scale 20-200-2000-20000 Hz, but that was more for testing than slate tones.
>>>>
>>>> I made a function generator that was nominally 10-100 per band but had a modification switch to go from 10-200 so I could sweep 1K-20K for recorder alignment without range switching.
>>>>
>>>> I would never trust "alignment" tones at the front of the tape for speed setting. In fact, you can't even trust an MRL calibration tape for that, other than the flutter test tapes, and that's not as accurate as you need for setting speed precisely on a recorder (which should be done with a large-diameter TAPE tachometer. This is a whole large issue, actually.
>>>>
>>>> Then, what Tom said, often times the tones were spliced on from a different session.
>>>>
>>>> Cheers,
>>>>
>>>> Richard
>>>>
>>>> On 2011-01-27 1:40 PM, Jim Sam wrote:
>>>>> All,
>>>>>
>>>>> Does anyone know how much test tone generators varied circa 1978?
>>>>>
>>>>> I know not to expect digital accuracy. For example, I would not
>>>>> expect a 10.00 kHz tone, but how much leeway was there? +/- 0.25kHz,
>>>>> +/-0.5 kHz, +/-1.0 kHz, etc.?
>>>>>
>>>>> Thanks,
>>>>> Jim
>>>>>
>>>>
>>>
>>
>> -- Richard L. Hess email: [log in to unmask]
>> Aurora, Ontario, Canada (905) 713 6733 1-877-TAPE-FIX
>> http://www.richardhess.com/tape/contact.htm
>> Quality tape transfers -- even from hard-to-play tapes.
>
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