Convert WMA to AAC

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WMA vs AAC Format Comparison

Aspect WMA (Source Format) AAC (Target Format)
Format Overview
WMA
Windows Media Audio

WMA is a proprietary audio format by Microsoft, available in both lossy and lossless variants.

Lossy Proprietary
AAC
Advanced Audio Coding

AAC is a standardized lossy format offering better audio quality than MP3 at similar bitrates.

Lossy Standardized
Technical Specifications
Sample Rates: 8–48 kHz
Bit Rates: 64–320 kbps
Compression: Lossy (WMA codec)
Channels: mono, stereo
Sample Rates: 8–96 kHz
Bit Rates: 8–320 kbps
Compression: Lossy (AAC-LC, HE-AAC)
Channels: mono, stereo, multichannel
Advantages
  • Integrated support on Windows platforms
  • Available in both lossy and lossless modes
  • Good quality at mid-range bitrates
  • Superior quality vs MP3 at same bitrate
  • Wide hardware and software support
  • Efficient streaming with HE-AAC
Disadvantages
  • Proprietary format with licensing
  • Poor support on non-Windows devices
  • Less efficient than modern codecs
  • Lossy compression with some data loss
  • HE-AAC may introduce artifacts at low bitrates
  • Requires modern decoder support
File Size
Typical Size: Medium
~3–5MB per minute (192–256 kbps)
Typical Size: Small
~1–2MB per minute (128–192 kbps)
Compatibility
Good: Windows Media Player
Limited: Some mobile/Unix players
Excellent: All modern devices
Good: Streaming platforms
Quality vs Size
Quality: Very Good
Efficiency: Good
Quality: Very Good
Efficiency: Excellent
Common Uses
  • Windows Media streaming
  • Corporate audio distribution
  • Legacy Windows devices
  • Music distribution (iTunes, YouTube)
  • Mobile and web streaming
  • Podcasts and broadcast

Why Convert WMA to AAC?

AAC delivers better audio quality at similar bitrates compared to WMA and enjoys universal support across devices and platforms. Converting WMA to AAC reduces file sizes while maintaining high fidelity, making it ideal for streaming, mobile playback, and multimedia applications. Use AAC for maximum compatibility and efficiency.