View Single Post
Old 10-23-2020, 05:55 AM
musicman691 musicman691 is online now
Join Date: Dec 2009
Location: The Sopranos State (NJ)
Posts: 18,015
Default Re: fix distortion in audio restoration project?

Originally Posted by daeron80 View Post
First, congrats! That's a cool gig.

Second, if the distortion was electronic, that's a tough problem, especially if it was transistor breakup. Almost intractable in some cases. Zoom in to the detailed waveform level and see where the discontinuities lie. If they're restricted to the high amplitude portion of the waveform, that's easier to deal with. If they lie along the ramp up or down, several dB below the peaks, then digging out between the overtones may be the best strategy.

If it was mechanical distortion during pressing, which is more similar to clipping, that can sometimes be moderated with the De-clip module of RX. Zoom in and adjust the threshold until it's catching most of the discontinuities. You'll lose some high end detail, but it can be an overall improvement.

Don't forget to try Interpolate and the various Spectral Repair modes. Sometimes they'll surprise you.
I've done vinyl restoration on and off for over a decade using various tools and RX is pure genius with the modules it has. Well worth the money & time spent with it. Is the distortion in one or both channels? If only one channel try bringing audio from the non-distorted channel (if the vinyl is stereo).

Something to think about is it might just be an instrument or instruments played a bit too forcefully and they just got blatty. Or a mic just got overdriven (thinking ribbon mic here).
See profile for system details
iMac dead & retired as of 11/4/17

Reply With Quote