MPEG to AU Audio conversion is the process of extracting or transcoding the audio stream from an MPEG video file (such as MPEG-1, MPEG-2, or MPEG-4 containers) and saving it in the AU audio file format used by Sun/UNIX systems. This converts compressed or encoded audio inside a moving-picture MPEG container into an AU container with chosen encoding parameters like sample rate and bit depth for playback or archival purposes.
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Read guide →Drag your .MPEG 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.
MPEG files typically use MIME types such as video/mpeg or audio/mpeg and employ codecs like MP3 or MPEG-2 Audio Layer II. AU files have the MIME type audio/basic and often use PCM encoding for uncompressed audio. MPEG is widely used for streaming and playback, whereas AU files are favored for audio processing and legacy software compatibility.
The AU Audio (.AU) format is commonly used for video. Understanding its characteristics can be helpful when converting to or from other formats like MPEG.
While specific technical details aren't available here, AU Audio files generally serve the purpose of storing video effectively within their domain.
Easily convert your MPEG files to high-quality AU audio format using our fast and reliable online converter. Whether you need AU audio for editing, compatibility, or archiving, our tool simplifies the process with no downloads or installations required.
MPEG is a compressed multimedia format commonly used for video and audio streaming, prioritizing small file size and broad compatibility. AU audio is an older, uncompressed or lightly compressed audio format designed primarily for Unix systems, offering high-fidelity audio but larger file sizes. While MPEG is ideal for general media consumption, AU is preferred for professional audio editing and archiving.
Keep individual MPEG source files under 250MB for free online conversions to avoid timeouts; larger files may require a desktop tool or a premium service.
To preserve audio quality, export AU using the same sample rate and higher bit depth (e.g., 44.1 kHz or 48 kHz at 16/24-bit) rather than resampling to lower rates.
For many speech or archival needs, use mu-law (u-law) only when you require compatibility with legacy UNIX telephony systems; otherwise prefer PCM in AU.
When converting many files, use batch conversion in a dedicated converter or script (ffmpeg) to keep metadata consistent and save time.
This MPEG to AU converter saved me hours of manual conversion.
John M.
Audio Engineer
The audio quality after conversion is outstanding and perfect for my projects.
Lisa K.
Music Producer
Quick, easy, and reliable—exactly what I needed to convert my files.
Mark D.
Podcaster
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Note format limitation: AU is primarily an audio container without advanced metadata support; album art and complex tags may be lost in conversion.