Audacity Forum

I have a job where I am going to perform some cleanup on a client supplied clip. Then I'm going to cause to appear the equalizer and filter curves I used to a client who will take it from there and do production on more clips taken from the same show.

How do I do that with noise reduction? I will create a complex profile and apply it to my sample clip and then need to email the profile along with the application values.

Koz

As always, I would suggest posting to the Forum for the operating system you are intending to use, not in a "General" forum.

I don't know what you mean by a "complex" noise profile, but you could either export the selection(s) you used for the noise profile(s) as a WAV and send it/them to your client; or turn on "CleanSpeech" mode in the Interface Preferences. Doing so means that Audacity will save the latest captured noise profile as "noisegate.nrp" in the "NRP" folder in your Audacity data folder:

* Windows 98/ME: WindowsApplication DataAudacity
* Windows 2000/XP: Documents and Settings<user name>Application DataAudacity
* Windows Vista and 7: Users<user name>AppDataRoamingAudacity
* OS X: ~/Library/Application Support/audacity
* Linux: ~/.audacity-data

If your client also turns on the CleanSpeech mode, then Noise Removal should use that .nrp file if your client drops it in the above location (i.e. they don't do the "Capture Noise Profile" step in Noise Removal or it will overwrite the file you sent them).


Gale

As always, I would suggest posting to the Forum for the operating system you are intending to use, not in a "General" forum.

I don't know that the two computers are the same.

I don't know what you mean by a "complex" noise profile

Select a portion of the show appropriate to the use. Apply custom Effect > Amplify and a custom equalization curve. Only then capture the profile. I suppose I could export and send the pre-capture, processed waveform. That's dangerous because Audacity likes to "do things" to sound files.

Doing so means that Audacity will save the latest captured noise profile as a noisegate.nrp file in the "NRP" folder in your Audacity data folder:

That's good to know. Why is it called CleanSpeech and why doesn't is always do that and just keep overwriting one file in normal use? First Birthday .nrp is zeroed out or blank and becomes a valid value the first time you use Noise Reduction.

Koz

kozikowski wrote:

Doing so means that Audacity will save the latest captured noise profile as a noisegate.nrp file in the "NRP" folder in your Audacity data folder:

That's good to know. Why is it called CleanSpeech and why doesn't is always do that and just keep overwriting one file in normal use? First Birthday .nrp is zeroed out or blank and becomes a valid value the first time you use Noise Reduction.

It's called CleanSpeech because the code comes from a "simplified" version of Audacity optimised for recording sermons.

The single .nrp file is indeed overwritten every time you click "Get Noise Profile" (if you are in CleanSpeech mode). I'll edit my answer to make that clearer.

The point of the file being ready for use when you launch Audacity in CleanSpeech mode is that it saves you the "Get Noise Profile" step (if the noise profile is always the same).

I guess very few people use the Audacity CleanSpeech mode (except in error), though IMO saving multiple noise profile files that could be loaded as presets would be a useful feature for Audacity generally.




Gale

I guess very few people use the Audacity CleanSpeech mode (except in error), though IMO saving multiple noise profile files that could be loaded as presets would be a useful feature for Audacity generally.

That's the point. Why isn't this normal instead of a Special Mode you have to enter?

Koz