How to convert AVI to Opus
- 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 Opus
NexMedia converts AVI to Opus 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 Opus online free, no account required — Opus is a modern open lossy codec for speech and music.
Change AVI to Opus without losing quality — convert AVI to Opus 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 Opus
Opus is an open, royalty-free lossy audio codec standardised by the IETF in 2012 (RFC 6716). It handles both speech and music well, from very low to high bitrates.
Voice and video calls, WhatsApp voice messages, WebRTC, and the audio track of WebM videos.
Opus always decodes at 48 kHz, and some older players and devices do not support it.
Why convert voice recordings to Opus? It stays clear at very low bitrates, so calls and dictation shrink dramatically without becoming hard to understand.
What changes when you convert AVI to Opus
- The soundtrack of the AVI is re-encoded as Opus at the default settings, so it is close to the original but not bit-identical.
- Only the sound is kept: the Opus file contains the audio track of your AVI, and the picture is dropped.
Settings you can change
Before you convert AVI to Opus, 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 Opus file is kept for 2 hours, then deleted.
AVI to Opus: questions and answers
Does converting AVI to Opus reduce quality?
The soundtrack of the AVI is re-encoded as Opus at the default settings, so it is close to the original but not bit-identical.
What is the difference between AVI and Opus?
AVI is Microsoft's older Windows video container. Opus is a modern open lossy codec for speech and music.
Can I change the settings when converting AVI to Opus?
Before you convert AVI to Opus, 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 Opus?
No. You can convert AVI to Opus without an account; signing in raises the file-size and daily limits.
How long is my converted Opus file kept?
The Opus file you convert from AVI is kept for 2 hours, then deleted automatically.
When I convert AVI to Opus, can I keep just the sound?
Only the sound is kept: the Opus file contains the audio track of your AVI, and the picture is dropped.
Will converting AVI to Opus change my original file?
No. The conversion reads your AVI and writes a new Opus file, leaving your original AVI file untouched.