AU Audio to AIFF conversion is the process of translating audio data stored in SUN/NeXT AU (.au) format into the Apple Interchange File Format (.aiff), preserving sample rate, bit depth, and channels where possible. This conversion lets you use AU recordings and sounds in macOS- and professional audio-friendly AIFF workflows and applications.
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Read guide →Drag your .AU file from your computer or use the browse function.
Confirm .aiff as the selected destination format.
Click "Convert" and download your converted .AIFF file once ready.
The AU Audio format typically uses the MIME type audio/basic and supports formats like mu-law or PCM codecs. AIFF files use the MIME type audio/aiff and are commonly encoded with uncompressed PCM audio for high-quality sound. AU is often used in legacy Unix environments, while AIFF is favored in professional audio production and editing.
The AIFF (.AIFF) format is commonly used for audio. Understanding its characteristics can be helpful when converting to or from other formats like AU Audio.
While specific technical details aren't available here, AIFF files generally serve the purpose of storing audio effectively within their domain.
Easily convert your AU Audio files to AIFF format using our reliable online AU to AIFF Converter. Whether you need better compatibility or higher quality audio, our tool provides a smooth and quick conversion process ideal for both personal and professional use.
AU Audio is an older audio format primarily used in Unix systems, often limited in compatibility and features. AIFF is a widely supported, lossless audio format commonly used in professional audio applications, providing higher fidelity and better metadata support. While AU files are smaller and simpler, AIFF files offer superior quality and editing capabilities.
Keep original sample rate and bit depth when possible to avoid unnecessary resampling and preserve audio fidelity; convert only when target software requires AIFF.
For optimal storage vs. quality, use 24-bit AIFF for professional mixes and 16-bit AIFF for distribution; use AIFF-C with a lossless codec if you need smaller files without quality loss.
When converting many files, batch conversion tools reduce time and ensure consistent settings; test one file to confirm settings before processing large batches.
Watch out for AU files using µ-law or proprietary encodings—these may require decoding to linear PCM first and can introduce quantization artifacts.
This AU Converter made converting my old recordings to AIFF effortless and fast.
Emily R.
Musician
The audio quality after conversion is impressive, perfect for my mixing projects.
John M.
Audio Engineer
Finally, a tool that converts AU to AIFF online without any complicated steps.
Lisa K.
Podcaster
Start your free AU to AIFF conversion now.
Drag your file here to to upload.
Up to 250MB
Typical web converters limit single-file size; for large multi-hour recordings, use desktop converters or split files to stay within limits.