Convert WMV to AAC — Free Online Converter

WMV files store audio using the WMA (Windows Media Audio) codec inside an ASF container — a proprietary format that lacks broad cross-platform support. AAC (Advanced Audio Coding) is the international standard for lossy audio, specified in MPEG-2 Part 7 and MPEG-4 Part 3, and used by iTunes, YouTube, Apple Music, Spotify, and virtually every modern platform. Converting WMV to AAC extracts the audio track from Microsoft's proprietary container and encodes it in the universal AAC format.

WMA audio is poorly supported outside the Windows ecosystem — macOS, iOS, Linux, and most web browsers cannot play it natively. By extracting WMV audio to AAC, you get a file that plays on every iPhone, iPad, Mac, Android device, web browser, and streaming platform. AAC also outperforms WMA at the same bitrate, delivering cleaner audio with fewer artifacts.