Step-by-Step Guide to Remove Background Noise in Audacity

Recording clean audio can be a challenge, especially if you’re working in less-than-ideal environments. Background noise, such as hums, clicks, or chatter, can make even the best recordings sound unprofessional. That’s where tools like Audacity come in handy. Audacity is a free, open-source audio editor that offers a powerful Noise Reduction tool, making it easy to remove unwanted sounds from your recordings.

In this article, we will share a full guide to using Audacity to remove background noise and polish your audio to perfection.

指南清單

Part 1. How to Use Audacity to Remove Background Noise

Part 2. Alternative Way to Remove Background Noise

第 3 部分. 常見問題解答

Part 1. How to Use Audacity to Remove Background Noise

Audacity is a popular audio editing program that is free and open-source. It's commonly used for different audio tasks, such as getting rid of background noise. While Audacity doesn’t specifically have a feature called 'background removal' for isolating or removing music and background sounds from vocals, it does offer tools for noise reduction and certain types of audio isolation.

Here’s how you can use it:

Or, you can record an audio file in Audacity directly to capture the sound you want to keep. (Audacity won’t record?)

• Identify a section of your audio that contains only background noise (e.g., silence with a faint hum).

• Highlight this portion by clicking and dragging over it.

• 去 影響 > Noise Removal and Repair > 降噪.

• 點選 Get Noise Profile. Audacity will analyze the sample to create a noise profile.

• Highlight the entire audio track or the section you want to clean.

• Return to 影響 > Noise Removal and Repair > 降噪.

• Adjust the following settings:

1. Noise Reduction (dB): Determines how much noise to remove. Start with 12 dB.

2. Sensitivity (dB): Adjusts the level at which audio is recognized as noise. Try a value between 3 and 6.

3. Frequency Smoothing (bands): Helps avoid distortion. A value of 3 is a good starting point.

• 點選 好的 to apply the changes.

Once the settings are done, export the audio file from Audacity by clicking Export > Export to Computer, then make the output profile like name, destination, format, sample rate, encoding, etc.

Then click 出口 to save the audio file with background noise reduction.

To achieve the best results with Audacity noise reduction, consider these tips:

• Choose a Clean Noise Profile: The cleaner your noise sample, the better Audacity can distinguish between noise and desired audio.

• Avoid Overprocessing: Excessive noise reduction can make your audio sound robotic or distorted.

• Experiment with Settings: Each recording is different, so test various values for Noise Reduction, Sensitivity, and Frequency Smoothing.

Audacity is free, easy to use, and customizable settings.

Part 2. Alternative Way to Remove Background Noise

If you’re looking for an easier or more advanced option, I recommend ArkThinker Video Converter Ultimate. This tool offers an easy but powerful way to eliminate background noise without requiring as much manual tweaking. Compared with Audacity, it is an all-in-one video and audio converter, editor, and enhancer to denoise audio and video for MP4, MKV, MOV, MP3, FLAC, WAV, and more than 1000 formats.

• Quickly get rid of background audio and video noise automatically by AI.

• Eliminate background noise for multiple audio or video files at once.

• Edit audio and video like trim, merge, compress, etc.

• Over 20 tools to refine your video and audio file.

To get rid of background noise in ArkThinker Video Converter Ultimate, follow these steps:

To start, hit the large plus button to upload the audio file you want to clean up by reducing the noise.

If you like, you can adjust additional settings like volume, delay, audio track, etc.

Compared with Audacity, this tool is faster and more automated when removing audio noise.

第 3 部分. 常見問題解答

結論