So for a school project I put together a rap and recorded it, but I have a sound that is distracting and annoying through out the whole thing. I think it is just my breathing, but i am not sure. I have already run the noise removal, but can’t get rid of the sound. Rercording isn’t an option so i need to get rid of this with Audacity.
For anyone who is curious the song is Like I am Tobit to the beat of Like a G6. I am aware that it is a god awful song, but it will do for this pupose. Tobit is a Bible book (it is a denominational thing).
I uploaded the files to MegaUpload. I recorded it into two halves so if someone could take a look at these for me and help me that would be much appreciated
I know you said it isn’t an option, but I agree with Koz that the “re-shoot” filter is the best option.
Here’s a short sample from your recording after:
Massively reducing the pops with a “limiter”,
High pass filter,
Manually reducing a couple of the worst pops.
<<Did you ever produce a reverse noise gate? >>
That’s essentially what the “Limiter” is doing.
Some Tips: (things to avoid on the next take)
Avoid blowing on the microphone.
Avoid saving as MP3 if possible (the metallic bubbly sound that you can hear in this sample is due to the MP3 encoding).
If you must use MP3, use a higher quality setting, or make the track mono before exporting.
Yes, it will take forever, but select each peak and Control-L to reduce it to zero, or Amplify to some negative number like -30 or so.
You can follow Steve’s recipe and that will be faster than doing them one by one. I don’t know a good automated way to get rid of those. Pops are one thing, but your noises are more complicated than pops and there’s no voice underneath the noise. Delete the pop and there’s a hole.
I want the Pop Gate to be able to reduce to zero. Then you wouldn’t have had to reduce the really bad pops by hand. They would just all go away – or to some much lower value, and not limited by the volume of the show.
Short samples (up to about 5 seconds) can be uploaded to the forum in WAV or FLAC format. These formats do not cause the “damage” that occurs with MP3 encoding.
(we only need a few seconds of audio to asses the problem).
The sample I posted was done in the following way:
Start (or restart) Audacity for the plug-ins to be recognised.
Import the file (“File menu > Import > Audio”)
Apply the effect “Fast Lookahead Limiter” with the settings: Input gain = 20, Limit = -8, Release Time = 0.5
Apply the effect “High Pass Filter” with the settings: Roll-off = 12 dB, Cut-off Frequency = 250 Hz
Apply the effect “Amplify”: "New Peak Amplitude = -2.5 (that’s “minus two point five”)
I wouldn’t bother tweaking individual pops, it’ll take too long and won’t make it sound much better.
That’s true, but in this case it does not improve the sound much.
Reducing the pops to zero will leave a hole.
The pops are already being reduced by over 24 dB.
An “inverse gate”, or whatever it may be called could perhaps be useful if the damage was a lot less. Are there other uses for such an effect?
But only if you programmed it that way. The advantage of a pop gate is the ability to reduce or eliminate pops without affecting the rest of the show at all. This particular show, for example, might have been passable if you recognized all the much, much higher pop peaks and make them quieter than the rest of the show. Not even to zero. If you play this raw show with a really good sound system, it will scare the cat and spill the tea. There is enormous energy down there. That’s why initially I thought I’d be able to help with high pass filters.
It’s the same controls you have with the Noise Gate. Threshold, rise and fall times, and limit level. They trigger on high instead of low. Or leave everything else alone and reverse Keep and Trash. Something like that. If you need to start over, you’re probably working too hard. 80% of the tool already exists.
I expect one of the phonograph cat hair processors might be useful…
This is a solution in Cubase which you might be able to adapt to Audacity. I made a copy of the track, INVERTED the wave form then applied a gate to it. the inverted wave form gets let through only on the unwanted noise. That only works with real-time audio software, but if you can find a way to make a duplicate track that has ONLY the sounds you want to get rid of (perhaps with click removal???), then invert the wave form, it will cancel out the sound on the original track. Hope this helps.