Mid/Side Encode

Encode a stereo file into Mid/Side channels

Converts stereo audio into Mid/Side: Mid = (L+R) and Side = (L-R), with adjustable scaling. Helpful for mastering workflows, stereo width control, or processing center and ambience separately before later decoding.

Audio File *

Click to upload file or drag and drop file here

Maximum file size: 200MB Supported formats: audio/*

Mid Level (0-1.0)

0 0.5 1

Scaling for the Mid channel (sum of L+R).

Side Level (0-1.0)

0 0.5 1

Scaling for the Side channel (difference L-R).

Output Format

API Documentation

Request Endpoint

POST /en/api/tools/audio-mid-side-encode

Request Parameters

Parameter Name	Type	Required	Description
audioFile	file (Upload required)	Yes	-
midLevel	range	No	Scaling for the Mid channel (sum of L+R).
sideLevel	range	No	Scaling for the Side channel (difference L-R).
outputFormat	select	No	-

File type parameters need to be uploaded first via POST /upload/audio-mid-side-encode to get filePath, then pass filePath to the corresponding file field.

Response Format

{
  "filePath": "/public/processing/randomid.ext",
  "fileName": "output.ext",
  "contentType": "application/octet-stream",
  "size": 1024,
  "metadata": {
    "key": "value"
  },
  "error": "Error message (optional)",
  "message": "Notification message (optional)"
}

File: File

AI MCP Documentation

Add this tool to your MCP server configuration:

{
  "mcpServers": {
    "elysiatools-audio-mid-side-encode": {
      "name": "audio-mid-side-encode",
      "description": "Encode a stereo file into Mid/Side channels",
      "baseUrl": "https://elysiatools.com/mcp/sse?toolId=audio-mid-side-encode",
      "command": "",
      "args": [],
      "env": {},
      "isActive": true,
      "type": "sse"
    }
  }
}

You can chain multiple tools, e.g.: `https://elysiatools.com/mcp/sse?toolId=png-to-webp,jpg-to-webp,gif-to-webp`, max 20 tools.

Supports URL file links or Base64 encoding for file parameters.

If you encounter any issues, please contact us at [email protected]