I’m a new user of Audacity. This seems like a great tool. Props to the people that made it. I recently recorded a family event for a friend. When we played it back, we noticed several times when a cell phone had been too close and the “dit dah dit dddddddd dit dah dit” sounds were very noticable. Is there a way to remove only those sounds? (I tried Click Removal, but they’re apparently not regular enough for that. I am not sure how to isolate the sounds to use them with Noise Removal.)
Any help would be appreciated.
I don’t think there is much that you can do about that kind of interference.
You could try Brian Davies’ excellent ClickRepair software - it costs $40 - but you get a 21day free trial - See http://wwwmaths.anu.edu.au/~briand/sound/software_download/clickrepair_info.html
But I suspect that ClicRepair may not work on this sort of “noise” - worth an experimental try though.
Failing that you can attempt some laborious maual repairs. You will need to identify where in the waveforms the “noise” occurs - zooming in will help. You can then do one of the following:
- select and delete the “noise” - you ill need to ensure that you cut at what are known as “zero crossings” or you will just generate yet another click
- use the redraw tool to manually repair the waveform (in 1.3 there is a Repair effect which can do this, but only for up to 128 samples - and I suspect your “noises” will be longer than that, but maybe not - have a try)
- You could try identifying the “noise” and replacing it with a same length sample copied from a neighbouring bit of good sound. This is probably the trickiest to do - but woth a try if you are feeling up to it.
Good luck - and let us know how you get on,
A slightly sloppier way is to zoom into the pips, select them and Edit > Silence. The holes are a lot less noticeable than those pips.
Thanks Koz and WC. You’ve given me a place to start. I’ll try your suggestions and post the results.