Audacity remove background noise software#
Audacity remove background noise trial#
Audacity remove background noise free#

The key to success with Audacity’s Noise Reduction effect is for the noise to be constant and not irregular or variable. If you find the Noise Reduction effect is not helping in the clean-up of your recording it may be because your audio is unsuitable for the effect. You just want to record the background noise on its own, two to five seconds should be plenty. Whilst recording the ambient noise, don’t shuffle around or make any noises and listen out for any other sounds. Alternatively, leave your camera/recorder rolling for a few seconds after you have finished speaking. The easiest way to do this is to set your recording level and record some “silence” before you start speaking. Therefore, always try to record a few seconds of ambient noise.

Remember this is the minimum amount of audio that Audacity requires to create a noise profile, but Audacity will usually do a much better job of creating a good noise profile if you provide a longer sample of the noise. This is equivalent to about five-hundredths of a second for a sound file with a sample rate of 44.1kHz. The Noise Reduction effect needs a minimum of 2048 data samples to create a noise profile. It is the noise profile that allows Audacity to differentiate between what is noise and what is speech (or another sound). You will not be providing any additional useful information for Audacity to create a good noise profile. If all you have on your recording of the noise on its own is a tiny section between your spoken phrases, do not copy and paste it to create a larger section of noise for Audacity to analyze.

Audacity remove background noise free#

The sample of noise must last a reasonable length of time and be free of any other sounds. Audacity will use this to learn about the noise and create a noise profile. The most important part of the noise reduction process is ensuring you have a good sample of the noise you want to remove. Remove background noise in Audacity Preparation for noise reduction

Audacity remove background noise software#

Noise Removal Software – Audacity Download.

That’s the basic process for noise removal in Audacity but I’ll now go through the process step by step.

Audacity remove background noise trial#

Use trial and error to find the best amount of Noise Reduction to apply.

Select the section of audio to be filtered.

Use the Noise Reduction effect to sample the noise and generate a Noise Profile.

Select a few seconds of the background noise from the audio waveform.

Ensure your recording includes a section with just the background noise.

To remove the background noise, you will need to do the following. If you already have audio software it may include a noise reduction or noise removal effect, if so, you can follow along since the noise reduction process will be similar.

Audacity allows you to remove static, hiss, hum, and other constant background noises from your audio recordings. I mean those constant background sounds like a fan, air-conditioning unit, refrigerator, or computer fan. I don’t mean background noise like recording under the flight path of a busy airport or on a construction site. It’s always better to record a voiceover for your video without background noise, but sometimes it’s unavoidable.