M2V to AU Audio conversion is the process of extracting or converting the audio track from an M2V video stream into the AU (Sun/Unix Audio) file format. This conversion isolates audio data embedded in MPEG-2 video files and repackages or transcodes it into AU with optional adjustments to sample rate, channels, and encoding parameters.
Related guides
Practical guides to help you choose formats, preserve quality, and avoid common conversion problems.
MOV files from iPhone, Mac, and editing apps often need conversion before they are easy to share, upload, or play on Windows. This guide explains MOV vs MP4, when you can remux without quality loss, when to re-encode, and the best MP4 settings for web, email, YouTube, Windows, audio, subtitles, HDR, file size, and batch conversion.
Read guide →Turning an MP4 into a GIF is simple, but making one that looks sharp, loads quickly, and works well on social platforms takes a few smart choices. This guide explains why GIFs get large, how frame rate, dimensions, duration, color palettes, and dithering affect quality, and when MP4, WebP, or animated PNG may be the better format.
Read guide →Compare the three most popular video container formats — MP4, MKV, and WebM — across codec support, device compatibility, file size, streaming performance, and editing workflows. Learn which format fits your specific use case and how to convert between them.
Read guide →Drag your .M2V 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.
M2V files use the video/mpeg MIME type and typically store MPEG-2 video streams without audio tracks. AU audio files use the audio/basic or audio/au MIME types and often contain PCM or μ-law encoded audio data. M2V is used in DVD video authoring and digital video applications, whereas AU is favored in Unix and Sun Microsystems environments for audio storage.
The AU Audio (.AU) format is commonly used for video. Understanding its characteristics can be helpful when converting to or from other formats like M2V.
While specific technical details aren't available here, AU Audio files generally serve the purpose of storing video effectively within their domain.
Our online M2V to AU converter allows users to effortlessly extract audio from M2V video files and save it in AU audio format. Whether you need the audio for editing, playback, or archiving, our tool provides a fast and user-friendly solution to convert your M2V files into high-quality AU audio online.
M2V files primarily contain MPEG-2 video streams without audio, while AU is an audio-only format commonly used for sound data. Converting M2V to AU allows users to isolate and work exclusively with the audio component, which is not inherently included in M2V files. AU files are simpler and smaller compared to M2V video files, ideal for audio playback and editing.
Keep individual M2V source files under 250 MB for fastest browser-based conversion; larger files are better handled by desktop tools or a premium upload option.
To preserve audio quality, detect the original audio codec in the M2V; if it's already linear PCM, use direct extraction rather than re-encoding.
For batch conversion, queue files with consistent sample rates and channel layouts to avoid repeated transcoding settings and save time.
Note format limitation: AU is a simple Sun/NeXT audio container primarily for PCM; some compressed audio codecs inside M2V (e.g., AC-3, MP2) will require decoding and re-encoding to PCM, which can introduce quality loss.
This M2V to AU converter saved me hours by extracting the audio perfectly.
Emily R.
Video Editor
Quick conversion with great audio quality every time.
Mark L.
Sound Engineer
Easy to use and no downloads needed, highly recommend for converting M2V files.
Nina S.
Content Creator
Start your free M2V to AU conversion now.
Drag your file here to to upload.
Up to 250MB
If you need smaller file sizes, downsample from 48 kHz to 22.05 kHz and convert stereo to mono, understanding this reduces fidelity.