AudioBinary

`audio/basic`

μ-law Audio

Reference for audio/basic, the MIME type for 8-bit μ-law audio at 8kHz used in telephony and legacy systems.

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Expected extensions: .au, .snd

HTTP Content-Type Header

HTTP Header

Content-Type: audio/basic

Associated File Extensions

.au.snd

Quick Facts

MIME Type	audio/basic
Category	Audio
Type	Binary
Extensions	.au, .snd

Common Usage

audio/basic defines 8-bit μ-law encoded audio at 8000 Hz mono, originally from Sun Microsystems. It is one of the earliest digital audio formats and was used in telephony, voicemail, and early Unix systems.

Rarely used today except for legacy compatibility.

Code Examples

HTML

<!-- Link or embed with explicit type -->
<link rel="stylesheet" href="file.au" type="audio/basic">

<!-- Or for script/media elements -->
<script type="audio/basic" src="file.au"></script>

Node.js

// Express.js
app.get('/file', (req, res) => {
  res.type('audio/basic');
  res.send(data);
});

// Node.js http
res.writeHead(200, { 'Content-Type': 'audio/basic' });

nginx

# nginx.conf — add to types block or use default
types {
    audio/basic  au snd;
}

# Or set for a specific location
location /api/ {
    default_type audio/basic;
}