How to convert Windows Media Audio 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 Windows Media Audio to Opus
NexMedia converts Windows Media Audio 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 Audio
Windows Media Audio (WMA) is Microsoft's family of audio codecs, stored in the ASF container, with lossy, lossless and voice variants.
Music bought or ripped with Windows Media Player in the 2000s.
WMA files can carry DRM, and many devices outside Windows do not play WMA.
Convert Windows Media Audio to Opus online free, no account required — Opus is a modern open lossy codec for speech and music.
Change Windows Media Audio to Opus without losing quality — convert Windows Media Audio to Opus free in your browser.
Why does my Android phone refuse to play WMA files? Windows Media Audio never left the Microsoft world, so players elsewhere either skip it or need a conversion to a universal format.
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 Windows Media Audio to Opus
- The audio is decoded and re-encoded as Opus at the default settings, so the result is close to the Windows Media Audio but not bit-identical.
- Windows Media Audio 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 Windows Media Audio 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.
Windows Media Audio to Opus: questions and answers
Does converting Windows Media Audio to Opus reduce quality?
The audio is decoded and re-encoded as Opus at the default settings, so the result is close to the Windows Media Audio but not bit-identical.
What is the difference between Windows Media Audio and Opus?
Windows Media Audio is Microsoft's Windows Media audio format. Opus is a modern open lossy codec for speech and music.
Can I change the settings when converting Windows Media Audio to Opus?
Before you convert Windows Media Audio 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 Windows Media Audio to Opus?
No. You can convert Windows Media Audio 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 Windows Media Audio is kept for 2 hours, then deleted automatically.
What happens if my Windows Media Audio file is copy-protected?
Windows Media Audio files can carry DRM copy protection; protected files are detected and refused, because copy protection is never removed.
When I convert Windows Media Audio to Opus, is the audio re-encoded?
The audio is decoded and re-encoded as Opus at the default settings, so the result is close to the Windows Media Audio but not bit-identical.