WINDOWS Media Video to AU Audio conversion is the process of extracting and re-encoding the audio track from a WMV (Windows Media Video) file into the AU (Audio) file format. This converts multimedia video containers that typically hold Windows Media audio/video codecs into a simple audio-only format used historically on Unix and some audio toolchains.
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Read guide →Drag your .WMV file from your computer or use the browse function.
Confirm .au as the selected destination format.
Click "Convert" and download your converted .AU file once ready.
The WMV format typically uses the video/x-ms-wmv MIME type and employs codecs like Windows Media Video for video and WMA for audio. AU files use the audio/basic or audio/au MIME types and commonly contain uncompressed PCM audio or μ-law encoded data. WMV is suited for multimedia playback, while AU files are ideal for audio processing and archival purposes.
The AU Audio (.AU) format is commonly used for video. Understanding its characteristics can be helpful when converting to or from other formats like WINDOWS Media Video.
While specific technical details aren't available here, AU Audio files generally serve the purpose of storing video effectively within their domain.
Convert your WINDOWS Media Video (WMV) files to AU Audio format quickly and easily with our online WMV to AU converter. No downloads or installations needed—just upload your WMV file and get a high-quality AU audio file in moments. Perfect for users looking to extract audio or change formats for compatibility.
WMV is a video file format primarily used for storing video and audio data together, optimized for Windows environments. In contrast, AU is an audio-only format designed for sound playback and editing, commonly used in UNIX systems. Converting WMV to AU separates audio from video, facilitating audio-focused applications where video content is unnecessary.
Keep individual WMV source files under 250 MB for free online converters; larger files may require a desktop tool or paid tier to avoid timeouts.
For best audio fidelity, export AU at 44.1 kHz PCM stereo when the WMV audio is high quality; use 22.05 kHz or mono for speech-only content to save space.
Preserve quality by disabling re-encoding of audio when possible (direct stream copy) or choosing lossless PCM in AU; avoid multiple encode-decode cycles.
Use batch conversion features in desktop apps or paid services for large numbers of files to maintain consistent settings and save time.
This WMV to AU converter saved me hours by quickly extracting clean audio from my videos.
Emily R.
Podcaster
Easy to use and produces high-quality AU files perfect for my editing workflow.
Jason M.
Audio Engineer
Perfect tool for converting lecture WMV videos to audio for student podcasts.
Linda K.
Teacher
Start your free WMV to AU conversion now.
Drag your file here to to upload.
Up to 250MB
Note format limitation: AU is an older, simple audio container that may not store metadata or modern compressed audio features found in WMV; some metadata and codec-specific effects can be lost.