Join Garrick Chow for an in-depth discussion in this video Removing unwanted background noise, part of Learning Audacity (2012).
Another popular use for Audacity is to remove or at least reduce unwanted background noise.…I've opened up the file interview_mono, let's listen and notice how, because this was recorded…outdoors, you can hear lot of this sort of steady hiss in the background.…(audio playing)…Now this really isn't all that bad, but it's a decent representation of the kind of noise…we can reduce with Audacity.…And this doesn't just have to be for recording outdoors, just about any room you record in…has its own background noise level. This is often referred to as room tone.…
With Audacity you can identify the room tone by creating a noise profile and then use that…profile to remove the tone from the recording.…So the first step is to capture a noise profile.…To do this you need a couple of seconds of the background noise on its own without, in…this case, any of the speaker's voice on top of it.…I have a little over a second of noise at the very beginning of this clip, and you can…see that this is noise just by looking at the waveform, it's not a perfectly straight…
- Creating a new project
- Adding tracks
- Recording two tracks simultaneously
- Making selections
- Splitting clips
- Automating volume
- Adding sound effects
- Using compression
- Inserting silence
- Exporting your project
Skill Level Beginner
Q: Why don't the instructions for downloading the LAME MP3 encoder work?
A: Use the new homepage for Audacity, http://audacityteam.org/, rather than the sourceforge address shown in the course.
Q: This course was updated on 08/14/2015. What changed?
A: The author updated the "Downloading and installing Audacity" videos for Mac and Windows, and added a new video on the LAME MP3 encoder.