What is MIME type "application/x-shorten"?

A MIME type is a string that tells browsers and other tools how to handle a particular kind of file.

The MIME type application/x-shorten tells programs that a file is encoded with the Shorten lossless audio compression algorithm. It reduces file sizes while keeping audio data intact.

Files using this type often carry the file extension SHN. This format, known in version 3.5.1, is used where accurate, unmodified audio is needed.

Main Use: Archiving audio recordings with no loss in quality.
Other Uses: Efficient file transfer and storage in media libraries.
Key Fact: It preserves the original audio signal through lossless compression.
Key Fact: Supported by specialized media software that recognizes the MIME type.

For more technical details on MIME types, see MIME on Wikipedia.

Associated file extensions

.shn

Usage Examples

HTTP Header

When serving content with this MIME type, set the Content-Type header:


    Content-Type: application/x-shorten

HTML

In HTML, you can specify the MIME type in various elements:


    <a href="file.dat" type="application/x-shorten">Download file</a>

Server-side (Node.js)

Setting the Content-Type header in Node.js:


    const http = require('http');    
    
    http.createServer((req, res) => {    
      res.setHeader('Content-Type', 'application/x-shorten');    
      res.end('Content here');    
    }).listen(3000);

Associated file extensions

.shn

FAQs

What is the application/x-shorten MIME type used for?

This MIME type represents the Shorten audio compression format, a legacy lossless method used primarily for archiving music. Files associated with this type typically use the .shn extension and are common in trading circles for live concert recordings.

Do web browsers support playing application/x-shorten files?

No, modern web browsers like Chrome, Firefox, and Safari do not support native playback of Shorten files. To listen to these files, users must download them and use a compatible media player like VLC, Foobar2000, or Winamp with a plugin.

How do I configure Apache to serve .shn files correctly?

You can enable the correct MIME type association by adding a directive to your .htaccess file or main configuration. Add the line: AddType application/x-shorten .shn. This ensures the server identifies the file as a Shorten audio stream rather than generic binary data.

How do I set up Nginx to handle application/x-shorten?

In your Nginx configuration (usually mime.types or within a server block), add the mapping for the extension. Use the format: application/x-shorten shn;. Always reload Nginx after making changes to ensure the new content type is recognized.

Why is the MIME type listed as application rather than audio?

The application/ prefix is often used for binary formats that require specific external software or decoding logic not native to the OS core. While it contains audio, application/x-shorten indicates a proprietary or non-standard compressed format, unlike standard types like audio/mpeg.

How can I convert application/x-shorten files to FLAC or MP3?

You can use command-line tools like FFmpeg or desktop applications like Trader's Little Helper (Windows) or XLD (macOS). For example, running ffmpeg -i file.shn file.flac will convert the legacy Shorten format to the modern, widely supported FLAC format.

General FAQ

What is a MIME type?

A MIME (Multipurpose Internet Mail Extensions) type is a standard that indicates the nature and format of a document, file, or assortment of bytes. MIME types are defined and standardized in IETF's RFC 6838.

MIME types are important because they help browsers and servers understand how to process a file. When a browser receives a file from a server, it uses the MIME type to determine how to display or handle the content, whether it's an image to display, a PDF to open in a viewer, or a video to play.

MIME types consist of a type and a subtype, separated by a slash (e.g., text/html, image/jpeg, application/pdf). Some MIME types also include optional parameters.

How do I find the MIME type for a file?

You can check the file extension or use a file identification tool such as file --mime-type on the command line. Many programming languages also provide libraries to detect MIME types.

Why are multiple MIME types listed for one extension?

Different applications and historical conventions may use alternative MIME identifiers for the same kind of file. Showing them all helps ensure compatibility across systems.