Convert WMV to AAC Online Free
Extract the audio from your WMV Windows Media Video and save it as AAC — the modern, cross-platform audio standard. Perfect for making Windows video audio accessible on mobile, streaming, and Apple devices.
ChangeThisFile extracts audio from your WMV Windows Media Video and encodes it as AAC using FFmpeg on our secure servers. AAC is the modern standard audio format supported natively on iOS, Android, and every major streaming platform. Files are auto-deleted, free with no signup needed.
Convert WMV to AAC
Drop your WMV file here to convert it instantly
Drag & drop your .wmv file here, or click to browse
Convert to AAC instantly
WMV vs AAC: Format Comparison
Key differences between the two formats
| Feature | WMV | AAC |
|---|---|---|
| Type | Microsoft proprietary video container | Lossy audio bitstream (ADTS) |
| Developer | Microsoft | MPEG / ISO standard |
| Audio codec | WMA (Windows Media Audio) | Advanced Audio Coding |
| Platform support | Windows-native, limited mobile | iOS, Android, Windows, macOS, streaming |
| File size | Moderate (video included) | Small — efficient audio only |
| Mobile compatibility | Poor — not natively on smartphones | Excellent — native on all major platforms |
| Use case | Windows video ecosystem | Universal audio — mobile, streaming, automotive |
When to Convert
Common scenarios where this conversion is useful
Convert WMV corporate training audio for mobile devices
Corporate training videos in WMV format do not play natively on smartphones. Extract the audio as AAC to enable employees to listen to training content on their iPhone or Android device during commutes.
Extract WMV presentation audio for streaming
Business presentations and conferences recorded as WMV can have their audio extracted to AAC for upload to podcast platforms, internal streaming services, or SoundCloud for wider audience access.
Modernize Windows-era video audio for cross-platform use
WMV is a Windows-centric format with limited support outside the Microsoft ecosystem. Converting to AAC gives you a format supported universally across all modern operating systems, devices, and streaming platforms.
Extract WMV home video audio for iOS sharing
Early digital camcorders and Windows Video Maker produced WMV files. Extract audio as AAC to share memorable moments from home videos via iMessage, email, or AirDrop on Apple devices.
Create AAC audio from WMV recordings for transcription
Transcription services and speech-to-text tools accept AAC audio files. Convert WMV meeting or interview recordings to AAC for submission to transcription services like Otter.ai or Rev.
How to Convert WMV to AAC
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1
Upload your WMV file
Drag and drop your .wmv file onto the converter or click to browse and select it. Files up to 500MB are supported.
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2
Server-side AAC encoding
Your WMV is uploaded over HTTPS and FFmpeg extracts and decodes the WMA audio track, encoding it as AAC. The video stream is discarded. Processing completes in seconds.
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3
Download your AAC file
Click Download to save the .aac file. The original WMV and converted AAC are automatically deleted from our servers after download.
Frequently Asked Questions
Yes. AAC is Apple's preferred audio format and plays natively on all iPhone, iPad, and Mac devices without any additional apps or codecs.
Both are lossy codecs at comparable quality levels. AAC is generally considered slightly more efficient (better quality at same bitrate) and is far more universally supported. WMA is better integrated with Windows, while AAC works everywhere.
Yes. Converting between lossy codecs (WMA → AAC) involves re-encoding with a small additional quality reduction. At high target bitrates (192 kbps+), this difference is typically imperceptible.
FFmpeg uses a high variable bitrate setting by default, typically 192 kbps VBR AAC. This provides excellent quality for music, speech, and general audio content.
Yes. Android has natively supported AAC since version 1.0. AAC files play in the default music player and all major third-party players on Android.
Yes. Spotify, Apple Music, SoundCloud, YouTube, and virtually all streaming platforms accept AAC audio files. AAC is the most widely accepted audio format for streaming platform submissions.
DRM-protected WMV files cannot be converted. FFmpeg requires unprotected audio access. Only non-DRM WMV files can be extracted to AAC.
Yes. ChangeThisFile is completely free. No signup, no limits, and no fees.
Very fast — typically just seconds. Only the audio stream is processed and the video is discarded.
Yes. All uploads are HTTPS-encrypted and files are deleted from our servers immediately after conversion. We never retain or access your content.
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