78 RPM recorded @45 RPM restoring w/Speed-Pitch Change
Moderator: Martin Hairer
78 RPM recorded @45 RPM restoring w/Speed-Pitch Change
I have no 78 RPM turntable so am recording the record to Amadeus Pro at 45 RPM and attempting to change the pitch/speed in A-Pro. I've arrived at 175% as the approximate correct increase in speed=time on 78 label.
My question:
If I select the LOCK, is the pitch correct when the speed is increased to 175%?
My question:
If I select the LOCK, is the pitch correct when the speed is increased to 175%?
Charlie in the swamp
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78 RPM recorded @45 RPM restoring w/Speed-Pitch Change
It should be. The calculation is ok.
I remember some discussions about recording 78's in the past. Maybe you could search the forum.
Gerard
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I remember some discussions about recording 78's in the past. Maybe you could search the forum.
Gerard
--I have no 78 RPM turntable so am recording the record to Amadeus Pro at 45 RPM and attempting to change the pitch/speed in A-Pro. I've arrived at 175% as the approximate correct increase in speed=time on 78 label.
My question:
If I select the LOCK, is the pitch correct when the speed is increased to 175%?
------------------------
Charlie in the swamp
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Gerard Bik grafische vormgeving
Van Aerssenstraat 263
2582 JM Den Haag
070 3554081
Website: http://www.biknewz.nl
IEDP gecertificeerd
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78 RPM recorded @45 RPM restoring w/Speed-Pitch Change
Will need to equalize the sound -- not quite sure how one would do it
with standard equalization curves.
Gerard Bik wrote:
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with standard equalization curves.
Gerard Bik wrote:
_______________________________________________It should be. The calculation is ok.
I remember some discussions about recording 78's in the past. Maybe you could search the forum.
Gerard
I have no 78 RPM turntable so am recording the record to Amadeus Pro at 45 RPM and attempting to change the pitch/speed in A-Pro. I've arrived at 175% as the approximate correct increase in speed=time on 78 label.
My question:
If I select the LOCK, is the pitch correct when the speed is increased to 175%?
------------------------
Charlie in the swamp
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78 RPM recorded @45 RPM restoring w/Speed-Pitch Change
More accurately, the rate should be 173.333, which is the result of 78 ÷ 45.
I've used this same method to digitize 78s without a 78 player, and have
gotten some very acceptable results.
--Phil M.
saxking20 wrote:
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I've used this same method to digitize 78s without a 78 player, and have
gotten some very acceptable results.
--Phil M.
saxking20 wrote:
_______________________________________________I have no 78 RPM turntable so am recording the record to Amadeus Pro at 45 RPM
and attempting to change the pitch/speed in A-Pro. I've arrived at 175% as
the approximate correct increase in speed=time on 78 label.
My question:
If I select the LOCK, is the pitch correct when the speed is increased to
175%?
------------------------
Charlie in the swamp
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Amadeus forum mailing list
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http://two.pairlist.net/mailman/listinfo/forum_list
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'Equalizer' from Brian Davies:
http://www.clickrepair.net/software_dow ... lizer.html
can correctly convert from RIAA (the microgroove standard) - including at the wrong speed - to a specified 78rpm EQ. See page 11 of the manual. It's free.
http://www.clickrepair.net/software_dow ... lizer.html
can correctly convert from RIAA (the microgroove standard) - including at the wrong speed - to a specified 78rpm EQ. See page 11 of the manual. It's free.
Re: 78 RPM recorded @45 RPM restoring w/Speed-Pitch Change
In real life the speed of old 78s was all over the place. In theory, the real speed was supposed to be 78.26 rpm by somebody's standard, so the percentage would be 173.911 if a record really met that. That's a difference in pitch of 5 or 6 cents.pm@philxmilstein.com wrote:More accurately, the rate should be 173.333, which is the result of 78 ÷ 45.
I've used this same method to digitize 78s without a 78 player, and have
gotten some very acceptable results.
--Phil M.
If you could be sure that the instruments were exactly in tune, you could look at the waveforms and fine tune to A=440. But perhaps one could find a scratch on the record and time its reiterations to 78 or 78.26 per minute.
Doing what sounds good might be as good a standard as any.
I'm researching this because I have a neighbor who had recordings made at the University of Illinois in 1949. For her 90th birthday present, I'm trying to digitize the records and then will make CDs for her and her family. I don't have 78 speed on my turntable, so I'm recording at 45rpm. I did buy a stylus for 78s to prevent damaging the records with an LP stylus.[/quote]
78 RPM recorded @45 RPM restoring w/Speed-Pitch Change
Of course the equalization curves are different and will also be shifted
as the frequencies are different.
On 3/22/18 4:50 PM, stevelee wrote:
as the frequencies are different.
On 3/22/18 4:50 PM, stevelee wrote:
pm@philxmilstein.com wrote:In real life the speed of old 78s was all over the place. In theory, the real speed was supposed to be 78.26 rpm by somebody's standard, so the percentage would be 173.911 if a record really met that. That's a difference in pitch of 5 or 6 cents.More accurately, the rate should be 173.333, which is the result of 78 ÷ 45.
I've used this same method to digitize 78s without a 78 player, and have
gotten some very acceptable results.
--Phil M.
If you could be sure that the instruments were exactly in tune, you could look at the waveforms and fine tune to A=440. But perhaps one could find a scratch on the record and time its reiterations to 78 or 78.26 per minute.
Doing what sounds good might be as good a standard as any.
I'm researching this because I have a neighbor who had recordings made at the University of Illinois in 1949. For her 90th birthday present, I'm trying to digitize the records and then will make CDs for her and her family. I don't have 78 speed on my turntable, so I'm recording at 45rpm. I did buy a stylus for 78s to prevent damaging the records with an LP stylus.