ChangeMyFile - Free Online File ConverterChangeMyFile
Trusted by thousands of users worldwide

Convert AVI to AAC - Extract Quality Audio from Video

Convert AVI to AAC - Extract Quality Audio from Video

Step 1: Upload your files

You can also Drag and drop files.

Step 2: Choose format
Step 3: Convert files

Read Terms of use before using

Share:fXin@
500+ Formats
Lightning Fast
100% Secure
Always Free
Cloud Processing

Extract Audio from AVI Videos

AVI files contain both video and audio streams, but sometimes you only need the audio. Whether it's a soundtrack, voice recording, or sound effects embedded in an AVI video, extracting it to AAC gives you a high-quality audio file that plays on virtually every modern device.

AAC (Advanced Audio Coding) delivers better sound quality than MP3 at the same file size. It's the audio format Apple, Spotify, and YouTube standardized on-and for good reason. In our testing, a 256 kbps AAC file sounds noticeably cleaner than a 320 kbps MP3, especially in the high frequencies where MP3 tends to lose detail.

How to Convert AVI to AAC

  1. Upload your AVI file - Drag and drop or click to select your video
  2. Select AAC as output - Choose AAC for the best quality-to-size ratio
  3. Download your audio - Get your extracted AAC file instantly

The entire process happens in your browser. No software installation, no account creation, no waiting in queues.

Why Choose AAC Over MP3?

When extracting audio from AVI files, you have options. Here's why AAC is typically the better choice:

  • Better compression efficiency - AAC produces smaller files at equivalent quality
  • Superior high-frequency handling - AAC supports 8 kHz to 96 kHz vs MP3's 16-48 kHz range
  • Cleaner stereo imaging - AAC's stereo coding preserves spatial detail that MP3 often smears
  • Industry standard - Apple Music, YouTube, Spotify all use AAC as their primary format

At bitrates below 128 kbps, the difference is especially clear. In our testing, AAC files maintained clarity while MP3 files at the same bitrate sounded muddy and compressed. If you're working with limited storage or bandwidth, AAC stretches further.

Need maximum compatibility instead of optimal quality? Consider AVI to MP3 conversion-MP3 plays on literally everything, including older devices that might not support AAC.

Understanding AVI Audio Streams

AVI (Audio Video Interleave) is a container format Microsoft introduced in 1992. It's essentially a wrapper that can hold various audio and video codecs together. The audio inside your AVI file might already be encoded as:

  • PCM - Uncompressed audio (large files, perfect quality)
  • MP3 - Common in DivX/XviD encoded videos
  • AC3 - Dolby Digital, often found in DVD rips
  • DTS - High-quality surround sound

Our converter handles all these audio codecs automatically. Whatever's inside your AVI file gets extracted and converted to AAC without you needing to know the technical details.

Common Use Cases

Extracting Music from Video

Recorded a concert or music video? Extract just the audio to listen on your phone or MP3 player without the video overhead. AAC files are typically 10-15x smaller than the original video.

Podcast and Voiceover Extraction

Have interview footage or recorded presentations in AVI format? Pull out the audio track for podcast distribution or transcription. AAC is the standard format for podcast apps.

Sound Effects and Samples

Video editors and musicians often need to extract specific sounds from video clips. Converting to AAC preserves quality while making the audio easy to import into DAWs and editing software.

Archiving Audio from Old Videos

AVI was the dominant video format in the early 2000s. If you have old home videos or downloaded content, extracting the audio to AAC creates a modern, future-proof backup of the sound.

Quality Expectations

The quality of your extracted AAC file depends on the original audio in the AVI. If the source was recorded at CD quality (44.1 kHz, 16-bit), your AAC will sound excellent. If the original was heavily compressed, extraction won't add quality that wasn't there.

In our testing with typical AVI files from various sources:

  • DVD-quality AVI - Extracted AAC sounds nearly identical to original
  • DivX/XviD videos - Good quality, especially at 192+ kbps AAC
  • Low-bitrate web videos - Limited by source quality, but AAC preserves what's there

We recommend 256 kbps AAC as the sweet spot-excellent quality with reasonable file sizes. For voice-only content, 128 kbps AAC is perfectly adequate.

Device Compatibility

AAC works on more devices than most people realize:

  • Apple devices - iPhone, iPad, Mac (native support since day one)
  • Android - Full support since Android 1.0
  • Windows - Supported in all modern Windows versions
  • Gaming consoles - PlayStation, Xbox, Nintendo Switch all support AAC
  • Car stereos - Most Bluetooth-enabled car systems play AAC

The only devices that might struggle with AAC are very old MP3 players from the early 2000s. If you need to support those, convert to MP3 instead.

Alternative Audio Formats

AAC is ideal for most situations, but other formats have their place:

  • AVI to WAV - Uncompressed audio for editing, large files
  • AVI to FLAC - Lossless compression, audiophile quality
  • AVI to MP3 - Maximum compatibility, universal support
  • AVI to M4A - AAC in Apple's container format

Choose WAV or FLAC if you plan to edit the audio further. Choose MP3 if you need to support very old devices. For everything else, AAC offers the best balance.

Batch Conversion

Have multiple AVI files to process? Upload them all at once. Our converter handles batch jobs efficiently, extracting audio from each file and packaging the results for easy download. This is especially useful when archiving a collection of old videos or preparing audio for a project with multiple sources.

Works in Your Browser

No software to download, no plugins to install. Our AVI to AAC converter runs entirely in your web browser:

  • Windows, Mac, Linux, Chromebook
  • Chrome, Firefox, Safari, Edge
  • iPhone, iPad, Android tablets and phones

Your files stay on your device-we don't upload them to external servers. Conversion happens locally using your browser's processing power.

Pro Tip

For the best quality-to-size ratio, use 256 kbps AAC. In our testing, this bitrate is virtually indistinguishable from the original audio for most content, while 128 kbps AAC still outperforms 128 kbps MP3 noticeably.

Common Mistake

Expecting AAC extraction to improve audio that was already low-quality in the source AVI. Conversion preserves quality but can't add detail that wasn't recorded. Check your source file quality first.

Best For

Extracting music, podcasts, or sound effects from AVI videos for playback on phones, tablets, and modern media players. Ideal when you want better quality than MP3 with smaller files.

Not Recommended

If you need to support very old dedicated MP3 players from the early 2000s, use MP3 instead. Also, if you plan to edit the audio extensively, extract to WAV or FLAC first to avoid re-compression losses.

Frequently Asked Questions

This conversion extracts only the audio track from your AVI file-the video is discarded. The audio quality depends on your source file but is preserved as well as possible during conversion.

Quality depends on the original audio in your AVI file. If the source has high-quality audio (like DVD rips), the AAC output will sound excellent. At 256 kbps, AAC is virtually indistinguishable from the original for most listeners.

Yes, AAC typically delivers better sound quality at the same file size. At 128 kbps, AAC sounds noticeably cleaner than MP3. At higher bitrates like 256-320 kbps, the difference is subtle but AAC maintains an edge in high-frequency detail.

Yes. Android has supported AAC playback since version 1.0. Every modern Android phone and tablet plays AAC files without any additional apps or configuration.

Video data is much larger than audio data. A 700MB AVI video might produce a 30-50MB AAC audio file because you're keeping only the sound track. This is normal and expected.

For music, 256 kbps offers excellent quality with reasonable file sizes. For voice content like podcasts or interviews, 128 kbps is sufficient. For critical listening or archiving, use 320 kbps.

Yes, our converter supports batch processing. Upload multiple AVI files and convert them all to AAC in one operation. You'll get individual AAC files for each video.

Absolutely. AAC is Apple's preferred audio format. iTunes, Apple Music, and all Apple devices play AAC files natively without any conversion or additional software.

AAC is the audio codec (compression method). M4A is a file container that typically holds AAC audio. They're essentially the same audio-M4A is just AAC wrapped in Apple's MPEG-4 container. Both play on the same devices.

Yes. Our converter works in mobile browsers on both iPhone and Android. Upload your AVI file, convert to AAC, and download the result directly to your phone.

No, conversion happens directly in your browser using your device's processing power. Your files aren't uploaded to external servers, keeping your content private and secure.

Our converter extracts the primary audio track from your AVI file. If your video has multiple language tracks or commentary, the main audio track will be converted to AAC.

AVI Conversions & Related Converters

Quick access to the most commonly used file conversions.