How To Remove Background Noise In Video

Removing background noise in Audacity on a desktop computer can greatly improve the quality of your audio recordings. Here are some basic instructions on how to do this:
*1. Install Audacity:*
If you haven't already, download and install Audacity from the official website: www.audacityte...
*2. Import Your Audio File:*
Open Audacity and import the audio file you want to clean up by clicking "File" then "Open" and selecting the file from your computer.
*3. Select a Noise Profile:*
First, you need to select a portion of the audio that contains only the background noise (no other sound). This will be used as a reference for Audacity to identify the noise to remove. Follow these steps:
a. Zoom in on a section of your audio where only the background noise is present.
b. Click and drag to select a small portion of this noise (ideally about 1-2 seconds).
c. Click "Effect" "Noise Reduction" "Get Noise Profile." This tells Audacity what the noise sounds like.
*4. Apply Noise Reduction:*
Now that you have a noise profile, you can apply noise reduction to the entire audio track:
a. Select the entire audio track by pressing "Ctrl+A" (Windows/Linux) or "Cmd+A" (Mac).
b. Go to "Effect" and then "Noise Reduction" again.
c. Adjust the settings in the Noise Reduction dialog box:
"Noise Reduction (dB)": This controls the amount of noise reduction. Start with a conservative value like -20 dB.
"Sensitivity": Determines how aggressively noise is reduced. A higher value is more aggressive.
"Frequency Smoothing (bands)": Higher values will preserve more of the original audio but may leave more noise.
d. Click "OK" to apply the noise reduction.
*5. Listen and Fine-Tune:*
Play back your audio to listen to the results. If the noise reduction is too aggressive and distorts the audio, you may need to undo (Ctrl+Z or Cmd+Z) and adjust the settings in the Noise Reduction dialog until you're satisfied.
*6. Export Your Cleaned Audio:*
Once you're satisfied with the noise reduction, you can export your cleaned audio by going to "File" "Export" and selecting your desired audio format and settings.
*7. Save Your Project:*
It's a good practice to save your Audacity project (.aup) as well, so you can make further edits if needed without starting from scratch.
These are the basic steps for removing background noise in Audacity. Keep in mind that the effectiveness of noise reduction may vary depending on the quality of your recording and the nature of the background noise. In some cases, you may need to experiment with different settings to achieve the best results.