How to convert AVI to AAC
- 1
Upload your file
Drag and drop a file or click to select one. Keep this page open while the file uploads and converts.
- 2
Convert AVI to AAC
NexMedia converts AVI to AAC on its own servers. Processing time depends on the file size and how busy the queue is.
- 3
Download the converted file
When the conversion finishes, the download appears on this page. Your converted file is kept for 2 hours, then deleted.
About AVI
AVI (Audio Video Interleave) is a container format Microsoft introduced in 1992 for video on Windows.
Older cameras, Windows software and video collections from the 1990s and 2000s.
AVI predates modern codecs and has no native support for features such as variable frame rate, so it is rarely used for new video.
Convert AVI to AAC online free, no account required — AAC is the lossy audio codec that succeeded MP3.
Change AVI to AAC without losing quality — convert AVI to AAC free in your browser.
Why is my AVI file so much bigger than modern video? The container predates efficient codecs like H.264, so an hour of video can take many gigabytes that an MP4 would store in a fraction of the space.
About AAC
AAC (Advanced Audio Coding) is the lossy audio codec standardised in MPEG-2 and MPEG-4 as the successor to MP3; at the same bitrate it generally sounds better than MP3.
It is the audio in most MP4 videos, in Apple Music and on YouTube; a .aac file is a bare AAC stream without a container.
A bare .aac stream has only limited room for tags and cover art, so music players usually expect AAC inside an M4A file.
Why convert music to AAC instead of MP3? At the same bitrate AAC sounds better, and every modern phone, computer and streaming service decodes it.
What changes when you convert AVI to AAC
- The soundtrack of the AVI is re-encoded as AAC at the default settings, so it is close to the original but not bit-identical.
- Only the sound is kept: the AAC file contains the audio track of your AVI, and the picture is dropped.
Settings you can change
Before you convert AVI to AAC, you can adjust: Audio codec, Rate control, Audio bitrate, Quality (VBR), Sample rate, Channels, Normalize loudness, Trim start, Trim duration, and Keep tags.
Limits
Each plan sets a maximum file size and a number of conversions per day, and video and audio files also have a maximum length. Guests can convert files up to 100 megabytes and 5 per day; a free account raises this to 500 megabytes and 25 per day; paid plans go up to 100 gigabytes.
Your converted AAC file is kept for 2 hours, then deleted.
AVI to AAC: questions and answers
Does converting AVI to AAC reduce quality?
The soundtrack of the AVI is re-encoded as AAC at the default settings, so it is close to the original but not bit-identical.
What is the difference between AVI and AAC?
AVI is Microsoft's older Windows video container. AAC is the lossy audio codec that succeeded MP3.
Can I change the settings when converting AVI to AAC?
Before you convert AVI to AAC, you can adjust: Audio codec, Rate control, Audio bitrate, Quality (VBR), Sample rate, Channels, Normalize loudness, Trim start, Trim duration, and Keep tags.
Do I need an account to convert AVI to AAC?
No. You can convert AVI to AAC without an account; signing in raises the file-size and daily limits.
How long is my converted AAC file kept?
The AAC file you convert from AVI is kept for 2 hours, then deleted automatically.
When I convert AVI to AAC, can I keep just the sound?
Only the sound is kept: the AAC file contains the audio track of your AVI, and the picture is dropped.
Will converting AVI to AAC change my original file?
No. The conversion reads your AVI and writes a new AAC file, leaving your original AVI file untouched.