On 11 May 2002 at 12:52, ... hellothisisalex ... wrote:
quoted 2 lines Can anyone tell me what the rising tone at the beginning and end of> Can anyone tell me what the rising tone at the beginning and end of
> cassette tapes was for? I was listening to some old tapes and wondered.
It was the set-up tone to check frequency response and azimuth when
they did dubbings off big machines, to make sure the transfer was
recording correctly. Much like mastering engineers would send test
tones to the lathe operators who cut records, to make sure that their
masters were cut without any equalisation.
For instance, 1 kHz at 0 dB, 10 kHz (high frequency) and 50 Hz (low
frequency). These were common at the beginning of all 1/4" master
tapes sent for reproduction.
quoted 1 line Also--any programs or suggestions on how to make the tone?> Also--any programs or suggestions on how to make the tone?
Any tone generator will be able to duplicate that sound - simple sine
waves, no harmonics. Most professional mixing desks have a signal
generator built in that produce sine wave tones. Anything that can
produce pure sine wave tones can produce those noises.
< quote from my husband Tully, who knows these things. I just
thought it was to give you fair warning that the cassette was coming
to an end :-) >
I
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