How to convert Windows Media Audio 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 Windows Media Audio to AAC
NexMedia converts Windows Media Audio 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 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 AAC online free, no account required — AAC is the lossy audio codec that succeeded MP3.
Change Windows Media Audio to AAC without losing quality — convert Windows Media Audio to AAC 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 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 Windows Media Audio to AAC
- The audio is decoded and re-encoded as AAC 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 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.
Windows Media Audio to AAC: questions and answers
Does converting Windows Media Audio to AAC reduce quality?
The audio is decoded and re-encoded as AAC 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 AAC?
Windows Media Audio is Microsoft's Windows Media audio format. AAC is the lossy audio codec that succeeded MP3.
Can I change the settings when converting Windows Media Audio to AAC?
Before you convert Windows Media Audio 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 Windows Media Audio to AAC?
No. You can convert Windows Media Audio 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 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 AAC, is the audio re-encoded?
The audio is decoded and re-encoded as AAC at the default settings, so the result is close to the Windows Media Audio but not bit-identical.