IRCAM to SND Converter

Repackage IRCAM research audio as SND online

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IRCAM to SND

Move audio from the academic IRCAM format into SND — making research recordings accessible for Unix platforms and audio research.

No Research Tools Needed

Convert IRCAM files without installing Csound or academic audio tools. Process your research audio from any modern browser.

Simple Process

IRCAM files convert to SND rapidly on our cloud servers. Upload your research audio and receive the output promptly.

How to convert IRCAM to SND

1

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

2

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

3

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

About formats

IRCAM sound files originate from the Institut de Recherche et Coordination Acoustique/Musique — one of the world's foremost computer music laboratories, founded by composer Pierre Boulez in Paris. The format was created in the early 1980s to serve the research needs of IRCAM and has since been adopted by academic and artistic communities working at the intersection of science and sound. An IRCAM file begins with a 1024-byte header containing a magic number, sample rate, channel count, and an encoding type field that supports linear PCM (16/32-bit integer and 32-bit float), mu-law, and A-law variants. The header block also accommodates free-form annotation text, allowing researchers to embed experiment metadata directly in the audio file. Because the payload is uncompressed by default, recordings maintain full fidelity through successive analysis and resynthesis cycles — essential in psychoacoustic experimentation. Software such as Csound, libsndfile, and SoX reads and writes the format natively. Key advantages include a well-defined header that eliminates parsing ambiguity, support for floating-point samples essential in scientific DSP work, and deep roots in the computer music community ensuring continued tooling.
Developer: IRCAM
Initial release: 1983
SND is a multi-platform audio file extension used across several computing ecosystems since the late 1980s. On Sun and NeXT workstations, .snd files follow the AU format structure — a header with magic number 0x2e736e64, data offset, encoding type, sample rate, and channel count, followed by raw audio. On MS-DOS PCs, the same .snd extension was used by early sound utilities like Sounder and SoundTool for simple 8-bit unsigned PCM recordings. Macintosh systems also employed .snd for sound resources embedded in the resource fork. Because the extension is shared across incompatible formats, audio processing tools typically inspect the file header to determine which variant they are handling: files beginning with the AU magic number are treated as Sun/NeXT audio, while headerless files are interpreted as raw PCM with assumed parameters. The Sun/NeXT variant supports multiple encodings including mu-law, A-law, 8-bit and 16-bit linear PCM, and ADPCM, making it versatile for both speech and general audio. One advantage of the AU-style SND is its self-describing header, which enables any compliant player to determine sample format and rate without external metadata. The MS-DOS SND variants hold historical value as artifacts of the era when Sound Blaster cards first brought digital audio to personal computers. SND files from all platforms can be processed and converted using SoX and other audio tools.
Initial release: 1988

Frequently Asked Questions

Why convert IRCAM to SND?

SND provides NeXT/Sun audio format. Converting IRCAM research audio to SND makes it accessible for Unix platforms and audio research.

What opens SND files?

Audacity, SoX, VLC can open and play SND files without additional plugins or configuration.

What is IRCAM format?

IRCAM is a specialized academic audio format from the Institut de Recherche et Coordination Acoustique/Musique in Paris, used in computational musicology and acoustic research.

Is quality preserved in the conversion?

The conversion faithfully transfers audio from IRCAM to SND. Output quality depends on the target format encoding settings you choose.

Can I convert multiple IRCAM files?

Upload several IRCAM files and batch-convert them all to SND at once — efficient for processing research audio collections.