How to convert Windows Media (WMV) to Opus
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Upload your file
Drag and drop a file or click to select one. Keep this page open while the file uploads and converts.
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Convert Windows Media (WMV) to Opus
NexMedia converts Windows Media (WMV) 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 Windows Media (WMV)
Windows Media Video (WMV) is Microsoft's family of video codecs, stored in the ASF container.
Older Windows software, Windows Movie Maker projects and video from the 2000s.
WMV files can carry DRM, and many devices outside Windows do not play WMV.
Convert WMV to Opus online free, no account required — Opus is a modern open lossy codec for speech and music.
Change WMV to Opus without losing quality — convert WMV to Opus free in your browser.
Why does my WMV video refuse to play on my Mac or iPhone? Windows Media Video uses Microsoft codecs that Apple and Android devices don't include, so a conversion to MP4 is the quickest fix.
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 WMV to Opus
- The soundtrack of the WMV 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 WMV, and the picture is dropped.
- WMV files can carry DRM copy protection; protected files are detected and refused, because copy protection is never removed.
Settings you can change
Before you convert WMV 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.
WMV to Opus: questions and answers
Does converting WMV to Opus reduce quality?
The soundtrack of the WMV 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 WMV and Opus?
WMV is Microsoft's Windows Media video format. Opus is a modern open lossy codec for speech and music.
Can I change the settings when converting WMV to Opus?
Before you convert WMV 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 WMV to Opus?
No. You can convert WMV 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 WMV is kept for 2 hours, then deleted automatically.
When I convert WMV to Opus, can I keep just the sound?
Only the sound is kept: the Opus file contains the audio track of your WMV, and the picture is dropped.
What happens if my WMV file is copy-protected?
WMV files can carry DRM copy protection; protected files are detected and refused, because copy protection is never removed.