I'm surprised this question has not come up before.
I'm converting some rare records to .WAV files by recording and processing them with MAGIX Audio Cleaning Lab 12. The records are 78s, but my turntable only runs at 33 and 45 rpm.
I played the records at 45 rpm, then used the Resampling/Timestretching command in ACL 12 to speed up the recordings to the proper speed.
In the Resampling/Timestretching dialog box, there are separate sliders to control Time factor and Pitch (half-steps). Since 45 divided by 78 is 0.57692, setting the time factor at that number will result in a conversion of the proper length.
However, that still leaves the question of where to set the Pitch slider. By trial and error, I have determined that raising the pitch to 8.6 sounds right. But why? How would I arrive at this number mathematically?
I can't be the first person to have had this problem, and I'm surprised these numbers are not posted somewhere easily accessible.
I'm converting some rare records to .WAV files by recording and processing them with MAGIX Audio Cleaning Lab 12. The records are 78s, but my turntable only runs at 33 and 45 rpm.
I played the records at 45 rpm, then used the Resampling/Timestretching command in ACL 12 to speed up the recordings to the proper speed.
In the Resampling/Timestretching dialog box, there are separate sliders to control Time factor and Pitch (half-steps). Since 45 divided by 78 is 0.57692, setting the time factor at that number will result in a conversion of the proper length.
However, that still leaves the question of where to set the Pitch slider. By trial and error, I have determined that raising the pitch to 8.6 sounds right. But why? How would I arrive at this number mathematically?
I can't be the first person to have had this problem, and I'm surprised these numbers are not posted somewhere easily accessible.