Convert AVI to MP3 to Keep Only the Audio You Need

Can a video file become an audio file? Yes! AVI to MP3 conversion lets you extract audio from an AVI video and save it as an MP3. This is useful when you only want the audio. Below, you will find six of the best ways to do it. Check each method and see which one best fits your needs!

Part 1: AVI vs MP3

AVI vs. MP3 is easy to tell apart. AVI is a video file that can store both video and sound. An MP3 is an audio file that stores only the audio. Since it does not include video, an MP3 file is usually smaller and easier to save. If you only want the sound from an AVI video, converting it to MP3 is a simple option.

Part 2: The 6 Best Ways to Convert AVI to MP3

1. AVAide Video Converter - The All-in-One Powerhouse

The all-in-one powerhouse is like having a full video and audio toolbox in one place. Meet AVAide Video Converter! It can convert AVI to MP3 and convert other video files to audio formats, too.

Got a pile of videos? Its bulk conversion can handle many files at once. You can also fine-tune the channel, sample rate, and bitrate. Plus, its ultra-fast conversion speed gets your MP3 ready in no time!

Step 1Download, install, and open AVAide Video Converter for free. It works on both Windows and Mac.

Step 2Add your AVI file to the program by clicking the Add Files button at the upper left. You can select as many as you want, as it supports batch conversion.

Step 3Open the Format menu on the right. Go to Audio and choose MP3. It is the first option on the list. Do you want to change the sound quality? Click Custom Profile. You can adjust the channel, sample rate, and bitrate.

Step 4Hit the Convert All button and let AVAide Video Converter do the work. The conversion should only take a short time. Once it is done, check the output folder for your new MP3 file.

2. VLC Media Player - The Free Universal Workhorse

VLC Media Player is a free AVI-to-MP3 converter. It can open AVI files and convert their audio into MP3. You can also choose where to save the new file. The built-in conversion feature keeps the whole process in one place.

Step 1Download and install VLC Media Player. Open the program on your computer.

Step 2Click Media > Convert/Save. Click Add, then choose your AVI file.

Step 3Click Convert/Save. Open the Profile list. Choose Audio - MP3. Then, pick where you want to save the new file.

Step 4Click Start. VLC Media Player will extract the audio and save it as an MP3 file. Check the folder when the process ends.

3. FFmpeg - Using Command Line

Want more control over your AVI audio? FFmpeg lets you handle the conversion with a simple command. It can remove the video part and keep only the audio. You can also control the MP3 clarity with its settings. This gives you a direct way to convert your AVI file to MP3.

Step 1Install FFmpeg on your device. Windows users can download it and add its bin folder to PATH. Mac users can use brew install ffmpeg. Linux users can use sudo apt install ffmpeg.

Step 2Open Command Prompt on Windows. On Mac or Linux, open Terminal. Go to the folder that contains your AVI file.

Step 3Enter this command: ffmpeg -i input.avi -vn -c:a libmp3lame -q:a 2 output.mp3.

Step 4Press Enter and wait for FFmpeg to finish. The -vn part removes the video. The command creates an MP3 file with good audio quality.

4. CloudConvert - The Free Online Method

No need to install a desktop program for this one. CloudConvert is an online AVI-to-MP4 converter. You only need to upload your file and choose MP3 as the output. It also supports conversion from AVI to M4A. The converted file can then be saved to your device.

Step 1Open CloudConvert in your web browser. Click Select File and choose your AVI video.

Step 2Click the Select Format drop-down menu and select MP3 under Audio.

Step 3Open the Options button and fine-tune the settings if needed.

Step 4Click Convert. Please wait for the process to finish. Then, save the MP3 file to your device.

5. Echoia MP3 Converter - iPhone

Your iPhone can handle the conversion, too. This AVI-to-MP3 converter can convert video files to MP3 audio. It also gives you useful editing options before the conversion. You can trim a clip and change the volume or bitrate.

Step 1Install the video-to-audio app from the iOS App Store. Open the app after the installation.

Step 2Tap the Video to Audio option. Pick the AVI video that you want to convert.

Step 3Choose MP3 as the output format. You can also trim the clip or change the volume and bitrate.

Step 4Tap Export. The app will convert the video and save the MP3 file. You can then play or share the audio.

6. Audio Extractor: Video to MP3 - Android

Sometimes, you only need the sound from a video. Audio Extractor: Video to MP3 can help with that on Android. It can extract audio from an AVI file and save it as MP3. You can also use it for AVI to WAV conversions. Moreover, you can set the start and end time.

Step 1Install and open Audio Extractor: Video to MP3 on your Android device.

Step 2Tap Extract Audio From Video. Find and select your AVI file from your phone.

Step 3Choose MP3 as the output format. Set the start and end time if you only need part of the video.

Step 4Press Extract Audio. Enter a file name and tap Done. Your new MP3 file will be saved on your device.

Part 3: Which Method Should You Use in Different Situations

This part will help you match each converter with the right situation. Your best choice may depend on your device, the number of files, and how much control you need.

• 1.Need more control? Choose AVAide. It supports batch conversion. You can also change audio settings.
• 2.Already use VLC? Keep it simple. VLC can convert AVI files to MP3 without another converter.
• 3.Like commands and settings? FFmpeg gives you more control. You can also set the MP3 quality.
• 4.No software to install? Use CloudConvert. It works in your browser. Upload your AVI and convert it to MP3.
• 5.Have an iPhone? Echoia can turn video into MP3. You can also trim the audio and change its settings.
• 6.Use Android? Audio Extractor keeps things simple. It can pull audio from AVI videos. You can also choose the part you want.

Part 4: FAQs about Converting AVI to MP3

Why is AVI not used anymore?

AVI is an old video format from Microsoft. It can create large files and has limits with newer features.

How long can MP3 files be?

MP3 has no fixed time limit. A file can last for hours or even longer. The real limit depends on the file size and the device or app you use.

How high-quality is MP3?

MP3 can sound good for normal listening. But it is a lossy format. This means some audio data is removed to make the file smaller. Higher bitrates can give you better sound.

By Sylvie Hyde on Sep 02, 2026