Help in removing Squeaks and Creaks -Sound Forge - PC

Subject:Help in removing Squeaks and Creaks Posted by: Cumulous Date:9/11/2003 8:09:22 PM Hi! I'm working on a machine with Sound Forge 6.0. I have a sound file recording of a lecture hall. Needless to say, the voice quality is negligible at best. :) However, the problem is that the recording is full of squeaks and creaks from the hinging chairs that everyone has. I am not an expert user of Sound Forge by any means, but I'm not a complete beginner either. However, I'm not sure what the best way is to remove these offending sounds while maintaining the vocal frequencies as intact as possible. Any help would be appreciated. :) Thanks!
Subject:RE: Help in removing Squeaks and Creaks Reply by: keether Date:9/12/2003 11:34:10 AM The general idea is that if you can isolate the offending noise (a few moments of creaks without speech) and let SF measure that, SF can "remove" just that part of the waveform from the rest of the file. I believe you need Sonic Foundry's Noise Reduction plug-in to do this right, if you only work with Sound Forge. As I've been finding out, however, when dealing with music files, some time is needed to learn how best to remove noise without also removing subtle aspects of the music itself. Luckily Noise Reduction lets you listen to what you have removed, as well as what you have left. But it's quite tricky and the fact that I suffer from ringing in the ears doesn't help matters! I would guess, though, that it may be much easier to retain acceptable voice and speech than music. There are many on this forum who will give you precisely the information you need. Good luck!
Subject:RE: Help in removing Squeaks and Creaks Reply by: rraud Date:9/12/2003 12:06:26 PM Noise Reduction-2 is real good at attenuating din type noise. (HVAC, distant traffic, ect.) Momentary sounds like squeaks, coughs and stuff like that are another story. The click removal or vinyl restore applets of NR-2 may work to some extent, try the demo if you haven't already. Your other opitions are replacing some of the unwanted sounds with "room tone"... but this only can be done if they occur between words and sentences. This can take a very long time. The mulit-band compressor may also help, if you can zero in on the offending frequency. Either way your just polishing a turd. Sorry, there isn't a whole lot you can do.

Subject:Help in removing Squeaks and Creaks

Posted by: Cumulous

Date:9/11/2003 8:09:22 PM

Hi! I'm working on a machine with Sound Forge 6.0. I have a sound file recording of a lecture hall. Needless to say, the voice quality is negligible at best. :)

However, the problem is that the recording is full of squeaks and creaks from the hinging chairs that everyone has.

I am not an expert user of Sound Forge by any means, but I'm not a complete beginner either. However, I'm not sure what the best way is to remove these offending sounds while maintaining the vocal frequencies as intact as possible.

Any help would be appreciated. :) Thanks!

Subject:RE: Help in removing Squeaks and Creaks

Reply by: keether

Date:9/12/2003 11:34:10 AM

The general idea is that if you can isolate the offending noise (a few moments of creaks without speech) and let SF measure that, SF can "remove" just that part of the waveform from the rest of the file.

I believe you need Sonic Foundry's Noise Reduction plug-in to do this right, if you only work with Sound Forge.

As I've been finding out, however, when dealing with music files, some time is needed to learn how best to remove noise without also removing subtle aspects of the music itself. Luckily Noise Reduction lets you listen to what you have removed, as well as what you have left. But it's quite tricky and the fact that I suffer from ringing in the ears doesn't help matters!

I would guess, though, that it may be much easier to retain acceptable voice and speech than music. There are many on this forum who will give you precisely the information you need. Good luck!

Subject:RE: Help in removing Squeaks and Creaks

Reply by: rraud

Date:9/12/2003 12:06:26 PM

Noise Reduction-2 is real good at attenuating din type noise. (HVAC, distant traffic, ect.) Momentary sounds like squeaks, coughs and stuff like that are another story. The click removal or vinyl restore applets of NR-2 may work to some extent, try the demo if you haven't already.

Your other opitions are replacing some of the unwanted sounds with "room tone"... but this only can be done if they occur between words and sentences. This can take a very long time.

The mulit-band compressor may also help, if you can zero in on the offending frequency.

Either way your just polishing a turd. Sorry, there isn't a whole lot you can do.