Custom Equalization

Special Interest Groups Audio Processing
1

Hi all!

I’m not sure if this is a simple problem or not… I’ve been trying to find a solution for some time now, with no success. Hopefully someone can offer some insight.

I have two different recordings of the same song. One has a slight skip in it, so I want to replace that exact part of the song with a small clip from the other version. The problem is that the other version is much, much lower quality. I don’t mind a small blip in the quality, but I figure if I can at least equalize the clip so that it has the same spectrum as the song, it’ll sound a bit better. Here’s what I’ve done so far: selected the section of the song that I want to replace, and taken a spectrum, then exported the spectrum to a text file. What I want to do is equalize the clip using this spectrum before pasting it into the song. I know audacity has a few preset equalizations, but I want to use the exported spectrum as a custom equalization (and a much more specific one, at that.)

Does anybody know of a way to do this, either in Audacity, or with another piece of free software?

Also… I guess it would be handy to know how to line up a clip such as this. Is there a function in a piece of software that would “snap” the clip to the section most similar to it?

2

This posting may be the bridge between what you’re doing and what you want.

http://audacityteam.org/forum/viewtopic.php?f=20&t=4770

Scroll down. It gets better.

Koz

3

So I guess a first step would be to update to 1.3.x? I forgot to mention that I’m using 1.2.6, the thought hadn’t occurred to me that the beta might have something closer to what I need…

4

Oh, yeah. Anything fancy will have to be in 1.3.x. The 1.2 tools are pretty basic–and in some cases unworkable.

Koz

5

You can have 1.2 and 1.3 on your machine at the same time, just don’t try to open them both at once.

Koz

6

And note that while 1.2 projects can be opened in 1.3 - 1.3 projects won’t open in 1.2 - and once you have opened a 1.2 project in 1.3 and saved it - then it becomes qa 1.3 project unopenable again in 1.2.

WC

7

Great, thanks a lot guys… I tried playing around with the equalizer but I can’t really seem to get the clip to sound any closer to the song… so I’m going to play around later with cleaning up the noise and trying again.