WMA to AAC
Convert your video files quickly and easily with our professional online converter
Input Format
What is WMA?
WMA (Windows Media Audio) is a Microsoft audio format designed for efficient compression. The .wma extension can represent lossy or lossless audio, depending on the encoder.
History
WMA was introduced in 1999 as part of the Windows Media framework and was widely used in Windows-based media players.
How it works
WMA typically uses the ASF container and applies proprietary compression to reduce file size while maintaining acceptable quality.
How to open WMA files
WMA is supported on Windows and by many cross-platform players:
- Windows Media Player
- VLC Media Player
- Foobar2000
- Winamp
- Kodi
- Android music players
- Most Windows devices
Tips for working with WMA files
WMA is best for Windows ecosystems, but conversion can help:
- Convert WMA to MP3 or AAC for broader compatibility
- Check if the file is lossless before converting
- Avoid multiple re-encodes to preserve quality
- Tag metadata for better organization
- Use higher bitrates for music
Useful links
Explore WMA and Windows Media audio:
- Windows Media Audio overview
- WMA vs MP3 comparison
- ASF container basics
Output Format
What is AAC?
AAC (Advanced Audio Coding) is a modern lossy audio codec that delivers better quality than MP3 at the same bitrate. The .aac extension is common in streaming, mobile devices, and video containers.
History
AAC was standardized by the MPEG group in the late 1990s as the successor to MP3 and became the default codec for many platforms.
How it works
AAC uses advanced psychoacoustic models and flexible block sizes to compress audio efficiently while preserving clarity at lower bitrates.
How to open AAC files
AAC plays on most modern devices and media players:
- Apple Music or iTunes
- VLC Media Player
- Windows Media Player
- Android music players
- Foobar2000
- Audacity
- Most smartphones and tablets
Tips for working with AAC files
AAC is a strong choice for streaming and portable audio:
- Use AAC for better quality at low bitrates
- Store AAC in M4A for metadata support
- Avoid re-encoding from AAC to AAC
- Convert to MP3 for older devices
- Keep a lossless master for archiving
Useful links
More about AAC and modern audio coding:
- MPEG AAC overview
- AAC vs MP3 comparison
- Streaming audio best practices
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Free
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Quality
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Frequently Asked Questions
File Size & Length
Maximum file size?
Up to 4GB for free users. For larger files, use our video compressor or upgrade.
Maximum video length?
No length restrictions - convert videos of any duration.
Conversion Options
Change format?
Use our converter for any format. Try our compressor to reduce file size.
Change frame rate?
Use our FPS changer or compressor.