QUICKTIME Movie to AU Audio conversion is the process of extracting and re-encoding the audio track from a .MOV (QuickTime) video file into the AU audio format. This converts multimedia container data into a simple Sun/Unix AU audio file, preserving the soundtrack while discarding video data and optionally adjusting sample rate, channels, or compression settings.
Related guides
Practical guides to help you choose formats, preserve quality, and avoid common conversion problems.
Audio file formats shape how music, podcasts, voice notes, archives, and streaming files sound, store metadata, and move between devices. This guide explains MP3, WAV, FLAC, AAC, OGG, and WMA in practical terms, including compression, bitrate, sample rate, conversion workflows, and the tradeoffs behind choosing the best audio format for quality, size, compatibility, and long-term preservation.
Read guide →FLAC and MP3 solve different audio problems. FLAC preserves every sample for archiving, editing, and serious listening, while MP3 creates compact files for phones, cars, streaming libraries, and quick sharing. This guide explains how FLAC to MP3 conversion works, which bitrate settings are most transparent, how to protect tags and album art, and when you should avoid converting at all.
Read guide →Learn how to convert WAV to MP3 with optimal quality settings. This guide covers bitrate selection, CBR vs VBR encoding, step-by-step conversion methods using online tools, Audacity, and FFmpeg, plus expert advice on preserving audio fidelity during compression.
Read guide →Drag your .MOV 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.
MOV files use the MIME type video/quicktime and commonly contain video and audio encoded with codecs like H.264 and AAC. AU files have the MIME type audio/basic and typically store uncompressed or μ-law encoded audio, making them suitable for sound editing and legacy systems. Both formats serve distinct purposes, with MOV targeting video playback and AU focusing on audio processing.
The AU Audio (.AU) format is commonly used for audio. Understanding its characteristics can be helpful when converting to or from other formats like QUICKTIME Movie.
While specific technical details aren't available here, AU Audio files generally serve the purpose of storing audio effectively within their domain.
Easily convert your QUICKTIME Movie (MOV) files to AU Audio format with our reliable online MOV to AU converter. Designed for speed and convenience, our tool allows you to transform video files into high-quality audio recordings in just a few clicks.
QUICKTIME Movie (MOV) is a multimedia container format primarily used for storing video with audio, while AU Audio is a simple audio file format widely used in professional audio applications. MOV files are larger and richer in content, whereas AU files focus solely on audio and are typically more compact and compatible with various sound editing tools.
Keep source MOV files under recommended sizes: for online tools, aim for <250 MB for free conversion to avoid timeouts.
Preserve audio quality by selecting a sample rate and bit depth equal to or higher than the original audio (e.g., 44.1 kHz / 16-bit for CD-quality audio).
For large batches, use desktop converters or a premium service to avoid upload limits and speed throttling; process files in groups to maintain consistent settings.
Note format limitation: AU typically uses simple PCM or mu-law; advanced codec metadata from MOV (e.g., multichannel metadata, embedded chapters) won’t transfer to AU.
This online MOV to AU converter saved me hours in extracting clean audio from my videos.
Emily R.
Music Producer
Fast and easy to use—perfect for converting QUICKTIME Movie files to AU audio without hassle.
Jason M.
Video Editor
The audio quality after conversion was excellent, and the tool worked flawlessly.
Nina K.
Sound Engineer
Start your free MOV to AU conversion now.
Drag your file here to to upload.
Up to 250MB
If you need lossless audio, extract as WAV or FLAC first; converting directly to AU may involve re-sampling or re-encoding that can alter audio subtly.