You are here

Removing residual 'sawtooth' waveforms?

For everything after the recording stage: hardware/software and how you use it.

Removing residual 'sawtooth' waveforms?

Postby Elephone » Sat Jul 06, 2019 7:23 pm

Hi. I don't know quite how to describe this...

I've removed a bass guitar from a drum track, recorded on tape, but there are some 'sawtooth' frequencies leftover from the bass that I can only seem to remove using the healing tool in audition.

If anyone has any idea what I'm taking about, is there another way to go about this? If not, I'll post a screen-shot of the waveform I'm talking about. It sort of rides on the wanted waveform, forming saw-teeth at regular intervals along it.

Thanks.
Elephone
Frequent Poster
Posts: 1136
Joined: Wed Feb 11, 2009 1:00 am

Re: Removing residual 'sawtooth' waveforms?

Postby Hugh Robjohns » Sat Jul 06, 2019 8:11 pm

Are these sawtooth waveforms audible?

It sounds like you're describing harmonics of the bass track...

Either way, you should be able to work out the fundamental frequency of them by looking at their period on the wave display, and that will give a good clue as to the source and the method of removal.
User avatar
Hugh Robjohns
Moderator
Posts: 24561
Joined: Fri Jul 25, 2003 12:00 am
Location: Worcestershire, UK
Technical Editor, Sound On Sound

Re: Removing residual 'sawtooth' waveforms?

Postby Elephone » Sat Jul 06, 2019 8:38 pm

Hugh Robjohns wrote:Are these sawtooth waveforms audible?

It sounds like you're describing harmonics of the bass track...

Either way, you should be able to work out the fundamental frequency of them by looking at their period on the wave display, and that will give a good clue as to the source and the method of removal.

They're audible as raspy clicks that form a low-sounding frequency like toothcomb clicks. When I zoom into the wave, I can see teeth along the otherwise wanted waveform, but they're sparse and so form a low frequency.

Thanks.
Elephone
Frequent Poster
Posts: 1136
Joined: Wed Feb 11, 2009 1:00 am

Re: Removing residual 'sawtooth' waveforms?

Postby James Perrett » Sun Jul 07, 2019 12:17 am

Have you tried using Audition's spectral view? I would expect to see the frequencies of the sawtooth follow the bass line. RX allows you to automatically select harmonics when you select the fundamental of a note which would make removing these easy - I can't remember whether Audition has something similar.
User avatar
James Perrett
Moderator
Posts: 8436
Joined: Mon Sep 10, 2001 12:00 am
Location: The wilds of Hampshire
JRP Music - Audio Mastering and Restoration. JRP Music Facebook Page


Who is online

Users browsing this forum: No registered users