AU to MAUD Converter

Transform your AU recordings into MAUD online

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Bulk Conversion

Convert an entire folder of AU recordings to MAUD at once. Just upload all files and let the batch converter handle the rest.

Effortless Workflow

Upload your AU, pick MAUD as the target, and download the result. Three steps, no learning curve, no registration wall.

Custom Settings

Adjust sample rate, bit depth, channels, and codec parameters before converting your AU to MAUD for full control over the output.

How to convert AU to MAUD

1

Select files from Computer, Google Drive, Dropbox, URL or by dragging it on the page.

2

Choose maud or any other format you need as a result (more than 200 formats supported)

3

Let the file convert and you can download your maud file right afterwards

About formats

AU is an audio file format introduced by Sun Microsystems for its Unix workstations and the NeXT platform. It features a minimal 24-byte header specifying data offset, size, encoding type, sample rate, and channel count, followed by the audio payload. AU supports numerous encodings, including uncompressed linear PCM at various bit depths, mu-law and A-law companding (logarithmic compression used in telephone systems), and several ADPCM variants. This versatility made AU a workhorse across early Unix environments, web audio (Java applets defaulted to AU), and telephony applications. One advantage is simplicity: the compact header and straightforward structure make it trivial to parse, generate, and stream programmatically. The built-in mu-law option provides another benefit, delivering reasonable voice quality at just 8 KB per second — half the rate of 16-bit uncompressed audio — invaluable when storage and bandwidth were scarce. Although modern formats have largely supplanted AU in consumer applications, it retains a foothold in scientific computing and audio processing pipelines where minimal overhead and reliable cross-platform behavior are valued.
Developer: Sun Microsystems
Initial release: 1992
MAUD is an audio file format developed by MacroSystem for the Commodore Amiga platform, introduced in the early 1990s as part of their digital video and audio production tools. Built on the Amiga IFF (Interchange File Format) chunk architecture, MAUD files organize data into clearly delineated chunks — MHDR for the header, MDAT for sample data, and optional annotation chunks for metadata. The format supports mono and stereo layouts with bit depths of 8 or 16 bits and sample rates up to 48 kHz, which represented professional-grade specifications on Amiga hardware. Both signed linear PCM and A-law/mu-law encodings are available, offering a choice between fidelity and file size. MAUD saw primary use in the Amiga video production community, where MacroSystem Retina and VLab Motion boards demanded synchronized audio that the standard 8SVX format could not deliver. Conversion support exists today through SoX and libsndfile, ensuring vintage Amiga productions remain recoverable. Three distinct advantages stand out: clean IFF-based structure that any chunk-aware parser can navigate, 16-bit stereo capability ahead of typical Amiga audio, and lightweight overhead that left maximum CPU headroom for video rendering.
Initial release: 1992

Frequently Asked Questions

Why convert AU to MAUD?

Since AU is a dated Sun Microsystems format, moving to MAUD brings your audio into a modern, widely recognized container.

How do I open a MAUD recording?

Use Amiga audio players, SoX, Audacity to play or edit MAUD recordings. These tools offer reliable compatibility with the format.

Does converting AU to MAUD affect quality?

Lossless-to-lossless conversions preserve all audio data. When the target uses lossy compression, some quality reduction is inherent in the codec.

Does the converter support batch AU conversion?

Absolutely. You can upload a batch of AU files and convert them all to MAUD together, saving significant time on large collections.

Are my AU uploads kept private?

Yes. Uploaded AU files are deleted right after conversion, and the MAUD output is removed from our servers within 24 hours automatically.

Can I use this on a Chromebook or tablet?

Yes. The converter runs in any modern web browser. There are no platform restrictions — Chromebooks, tablets, and phones all work fine.