Audacity Forum

Every USB turntable includes RIAA playback EQ. This playback EQ is actually done in the phono pre-amp stage. A USB turntable must include a phono pre-amp to a) apply the proper playback EQ, and b) boost the tiny signal from the cartridge so that the analog-to-digital converters have a large enough ...

The equalizer inside the turntable assumes each tone coming from the record needs its own special, specific processing. If you play the record at the wrong speed, all the tones are in the wrong place. Is this EQ done by the TT or by the pre-amp? This is exactly what I was asking a previous poster. ...

Bill, thank you for that very clear answer...and yes you did talk me out of it. Despite the fact that I have been "talked out of it", I am still a bit confused by the RIAA EQ thing. I understand that the curve applied during mastering was based on the normal playback speed what I do not understand i...

Ah, I get it now thanks for the explanation.

Could you elaborate on the loss of fidelity when recording this way (high speed). Is it caused by the high speed recording or by the later software speed reduction?

Thanks again for all the help/info.
Steve

As I explained earlier the RIAA applies is a function of the record type being played rather that the speed of playback. It is possible that the T you have has cunning enough circuitry to apply different RIAA curves when playing at different speeds - but for the price of the device I somehow doubt ...

Thanks for your reply...a followup question The differeent RIAA equalizations are for the different types of the recording shellac 78s versus vinyl LPs &45s- the playback speed iself has no bearing on this. You will need to pass the signal through a phono preamp (or your TT may have a built in pream...

As the subject says I am wondering what would be the impact of recording 33 1/3 RPM lps at the faster 78 RPM then using Audacity's "Change Speed" feature to slow the audio back down. Here is the thing, I have several LPs to convert and thought that I could shorten the task by recording them at high ...

This page from the manual http://manual.audacityteam.org/index.php?title=Noise_Removal describes how the Noise Removal tool works, but it has to get the noise profile for each tape, because each will be different. I don't know any way to do that other than manually. PO'L Yes I read that page but wh...

We're clear what you want to do. The reason nobody's leapt to your rescue is there is no rescue. We would be hard put to fix these performances one at a time by hand and some of them are in doubt. Chains will only manage simple, predetermined tasks. So, no, I don't think this job is going to happen...

I thought maybe a more complete explanation of what I am doing might help to generate the most useful solutions. So here is that explanation. I am recording these phone conversations (currently saved on micro cassettes) to wav files on my PC. The playback of the tape, for recording to the PC, is don...