Record the track into Audacity at your chosen speed then select all the track by clicking in the Track Control Panel and click Effect > Change Speed.
33 RPM RECORDS PROFESSIONAL
So, to make a fully professional job of transferring your 78 rpm records, you should open Effect > Filter Curve EQ or Effect > Graphic EQ in Audacity immediately after recording, and apply the inverse of the RIAA playback curve (see the next section). They therefore sound dull if played through modern equipment that applies RIAA playback equalization. The problem is that most 78 rpm records were not cut with such a strong high frequency bias. This equalization is essential when playing records made from the 1950s or later, as it cancels out the high frequency biased "RIAA recording equalization" that such records are cut with, making them sound normal again. This is because the pre-amplification not only provides the necessary amplification for the cartridge signal that is sent to Audacity, but applies what is known as "RIAA playback equalization" to it. When recording 78 rpm records, there is a problem that the pre-amplification built into any consumer-level pre-amplifier or USB turntable will be designed for vinyl records made from the 1950s onwards. Backup (you do not want to lose all this valuable work).Review and Export as WAV, MP3 or whatever.Volume adjustments - normalization and compression.Filtering to reduce high and low frequency noise.Correct the speed via the Change Speed effect.Apply the correct equalization (whatever that may be).Remove any DC offset that may be present.This way you will not be continually swapping the stylus on your cartridge - a risky procedure. The safest way to swap between stylus types (if you are doing this often) is to use a separate headshell and cartridge. Again, search on the Internet for advice. Ideally you should consider more than one stylus width if you are playing really old shellac records, because there was no standardization of groove dimensions until late in the 78 rpm era. You need one which will support tracking at the heavier 4 or 5 gram weights that most 78 rpm recordings need. If you can afford it, use a separate cartridge from the one you use for your LPs. There is wider variation with recordings from the 1920's and older. Typical groove widths on 78's prior to the 1940's range from 2.5 mil to 4 mil. A typical good starter sapphire stylus size is 3 mil or 0.0762 millimeters, but watch how many sides you play as the stylus does not last as long as a diamond one.
![33 rpm records 33 rpm records](https://dygtyjqp7pi0m.cloudfront.net/i/26587/23687694_1.jpg)
If not, search the web for "78 rpm stylus".
33 RPM RECORDS MANUAL
damage to the stylus which will then impair its further use for LP'sĬheck the website or manual for your turntable to see if the manufacturer supplies a special 78 rpm stylus or cartridge.far less accurate reproduction of the music.
![33 rpm records 33 rpm records](https://i.etsystatic.com/21330879/r/il/a12987/2470200090/il_1588xN.2470200090_9c2e.jpg)
The grooves on a 78 are significantly wider and deeper than the grooves on an LP, so a normal stylus will bottom out in the grooves and also bounce from side to side in louder passages. You should not use a normal stylus (needle) to play 78's.