HEVC to AU Audio conversion is the process of extracting or transcoding the audio track from a video encoded with HEVC (High Efficiency Video Coding, H.265) into the AU audio container format used for simple uncompressed or PCM-based audio. This conversion yields a standalone AU file containing the audio stream from the HEVC source, suitable for legacy Unix-based systems, audio editing, or archival playback.
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Read guide →Drag your .HEVC 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.
HEVC files usually use the MIME type video/hevc and contain video encoded with the High Efficiency Video Coding standard. AU audio files use the MIME type audio/basic or audio/au and typically contain uncompressed or lightly compressed audio encoded with codecs such as μ-law. Converting HEVC to AU extracts audio streams for use in audio-centric applications.
The AU Audio (.AU) format is commonly used for video. Understanding its characteristics can be helpful when converting to or from other formats like HEVC.
While specific technical details aren't available here, AU Audio files generally serve the purpose of storing video effectively within their domain.
Convert your HEVC video files to AU audio format effortlessly with our online converter. Designed for speed and quality, this tool allows you to extract audio from HEVC videos and save it in the AU format without any software installation.
HEVC is a video compression format primarily used for high-efficiency video playback and storage. AU is an audio file format that stores sound data only, typically used in professional audio editing. While HEVC files contain both video and audio streams, converting HEVC to AU extracts just the audio portion, enabling easier audio manipulation and compatibility.
Keep original audio bitrate and sample rate where possible (e.g., 48 kHz/24-bit) to preserve quality when converting to AU; avoid unnecessary upsampling.
For smaller files, prefer downmixing to stereo and 16-bit/44.1 kHz AU to save space without noticeable quality loss for speech and music.
Use batch conversion for multiple files but check each file’s audio codec first; some HEVC files use compressed audio (AAC/AC3) requiring transcoding to PCM in AU.
Be aware AU is typically an uncompressed PCM container—expect larger file sizes compared with compressed formats; plan storage accordingly.
This HEVC to AU converter saved me hours by quickly extracting audio files.
Emily R.
Video Editor
Perfect quality audio output every time, very reliable.
Mark L.
Podcaster
Easy to use and no installs, exactly what I needed for my workflow.
Sophia K.
Sound Designer
Start your free HEVC to AU conversion now.
Drag your file here to to upload.
Up to 250MB
Limitations: AU is less flexible for metadata and streaming than modern containers, and some players may not support high-bit-depth or uncommon channel layouts in AU.