Apple Video to AU Audio conversion is the process of extracting or transcoding the audio track from an M4V (Apple Video) file into the AU (Sun/Next) audio container or converting the audio stream into AU-compatible PCM format. This conversion is used to produce a simple, uncompressed or lightly compressed audio file suitable for legacy systems, audio editing, or archiving separate from the original video.
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Read guide →Drag your .M4V 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 M4V format typically uses the MIME type video/x-m4v and supports video codecs like H.264 with AAC audio codec. AU audio files have the MIME type audio/basic and often contain uncompressed audio data encoded with PCM codecs. M4V is suited for multimedia playback, whereas AU is favored for audio processing and editing workflows.
The AU Audio (.AU) format is commonly used for audio. Understanding its characteristics can be helpful when converting to or from other formats like Apple Video.
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 APPLE Ipod Itoons Video files in M4V format to AU audio format using our efficient online converter. Whether you need to extract audio or change file compatibility, our tool offers a seamless conversion experience without compromising quality.
APPLE Ipod Itoons Video (M4V) is primarily a video container format that includes audio and video data, optimized for Apple devices. AU audio format, on the other hand, is a simple audio file type commonly used for audio editing and playback on various platforms. While M4V focuses on multimedia content, AU is optimized strictly for audio purposes.
Keep individual M4V files under 250 MB for faster free conversions; consider splitting larger files for reliability.
To preserve audio fidelity, export AU as 16-bit or 24-bit PCM at the original sample rate (usually 44.1 kHz or 48 kHz) rather than using u-law/a-law compression.
For batch conversions, ensure consistent audio codec and sample-rate settings across files to avoid resampling artifacts and simplify post-processing.
Note format limitation: many M4V files purchased from Apple may include FairPlay DRM and cannot be converted without removal (which may be restricted by law).
Love this tool for quickly extracting audio from my M4V videos.
Sarah T.
Designer
The converter preserved audio quality perfectly when converting to AU.
Mark D.
Musician
Fast and reliable, helped me prepare audio clips from my iPod videos.
Linda P.
Content Creator
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Up to 250MB
If your M4V contains multiple audio tracks, select the correct track prior to conversion to avoid exporting commentary or alternate-language audio by mistake.