Restoring clipped audio?

[marsoupilami]

Hi there!

I would like to transfer a language track from a vcd into a dvd (both legally purchased). Since this audio is the only available source, I'm looking for a chance to "repair" it.
Clipping occurs in my opinion at about 50% or a little less.
Any ideas?

Many thanks in advance!

[Emulgator]

A sample please ?

[marsoupilami]

Yep!
Here is a sample of highly clipped part

[patrick_]

iZotope RX ($349) usually does a good job.

[mike20021969]

Yep!
Here is a sample of highly clipped part

I just used the DeClipper in Adobe Audition CS5.5.
There was very little (audio) difference after the fix.

[marsoupilami]

Thanks for your answers!

I tried the demo of iZotope (which cannot save the file) and my old version of cooledit of which I think it is the "father" of Adobe Audition...
Both results sound a little better but are not really sufficient.

Obviously what's lost is lost ... :(

Anyway - thanks again!

[Alvisbryant]

iZotope RX is a software that is used for restoring clipped audio,eliminate clicks and crackle,supress unwanted sounds,resynthesize missing audio...

[Ghitulescu]

One cannot restore a clipped audio, if by "restore" one understands getting the signal as before the clipping. What "restoring" software do is to minimize the impact of clipping, either by flattening the part where the clipping occurred (older methods), or by trying to approximate the original curve (newer methods). Depending on how bad the clipping is, the second methods may fail, unless very clever (and thus expensive) algorithms were used.

[marsoupilami]

Hi!

Both "resynthesize missing audio..." and
"trying to approximate the original curve (newer methods)" are exactly what I mean.

What could be a program using a "clever algorithm"?:confused:

[Ghitulescu]

If the question is directed to me, frankly I have no idea, never used it, I always record at -12 - -8dB (for digital).

[Yobbo]

Izotope RX Advanced is probably the best you have, you need to play with the settings. It's expensive for a reason.

Audacity has a de-clipper plugin, but I've never used it.