Convert Advanced Audio Coding (.aac) to Windows Media Video (.wmv) online for free. Fast, secure audio conversion with no watermarks or registration.
Upload your .aac file by dragging it into the upload area or clicking to browse.
Choose your output settings. The default settings work great for most files.
Click Convert and download your .wmv file when it's ready.
AAC is a pure audio codec, while WMV (Windows Media Video) is Microsoft's video format built on the ASF container. Converting AAC to WMV creates a video file with a WMA audio track (transcoded from AAC) and either a blank or static-image video track. This conversion is used when Windows Media-based systems require video container input for what is essentially audio content.
Legacy Windows Media-based digital signage, kiosk systems, and corporate streaming servers may only accept WMV files. Some enterprise presentation systems and corporate intranets built on ASP.NET with Windows Media Player ActiveX controls require WMV input exclusively. Wrapping audio in WMV with a static slide image is also a method for publishing audio-visual content to Windows Media Services.
FFmpeg transcodes the AAC audio to WMA (wmav2) and muxes it with a video track (WMV2 codec) into an ASF container with .wmv extension. The video track can be a solid black frame at 1 fps or a static image (company logo, album art). WMV2 encoding is lightweight for static content. The output plays in Windows Media Player without additional codecs.
The audio undergoes AAC-to-WMA transcoding, which introduces one generation of lossy compression. At WMA 192 kbps, the quality difference from the AAC source is minimal. The video track (if blank) adds negligible file size overhead.
| Device | AAC | WMV |
|---|---|---|
| Windows PC | Partial | Native |
| macOS | Native | Partial |
| iPhone/iPad | Native | Partial |
| Android | Partial | Partial |
| Linux | Partial | Partial |
| Web Browser | No |
Resolution: N/A
Bitrate: 320 kbps
OGG Vorbis preferred
Resolution: N/A
Bitrate: 256 kbps
AAC format required
Resolution: N/A
Bitrate: 128 kbps
Lossless FLAC/WAV for best quality
Resolution: N/A
Bitrate: 128 kbps
MP3 mono for spoken word
AAC to WMV is a niche conversion for Microsoft enterprise environments. Modern systems should use MP4, but when Windows Media is the only option, this conversion produces compatible output.
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| No |
| Tính năng | AAC | WMV |
|---|---|---|
| Tên đầy đủ | Advanced Audio Coding | Windows Media Video |
| Phần mở rộng | .aac | .wmv |
| Phù hợp nhất cho | Superior to MP3 | Windows native |