SnapOtter/apps/docs/tools/audio/audio-channels.md

description

description
Convert between mono and stereo or swap left and right channels.

Audio Channels

Convert audio between mono and stereo layouts, or swap the left and right channels of a stereo file.

API Endpoint

POST /api/v1/tools/audio/audio-channels

Accepts multipart form data with an audio file and a JSON settings field.

Parameters

Parameter	Type	Required	Default	Description
mode	string	Yes	-	Channel operation: stereo-to-mono, mono-to-stereo, swap

Example Request

curl -X POST http://localhost:1349/api/v1/tools/audio/audio-channels \
  -H "Authorization: Bearer si_your-api-key" \
  -F "file=@audio.mp3" \
  -F 'settings={"mode": "stereo-to-mono"}'

Example Response

{
  "jobId": "a1b2c3d4-e5f6-7890-abcd-ef1234567890",
  "downloadUrl": "/api/v1/download/a1b2c3d4-e5f6-7890-abcd-ef1234567890/audio.mp3",
  "originalSize": 4500000,
  "processedSize": 2300000
}

Notes

• stereo-to-mono mixes both channels into a single mono track.
• mono-to-stereo duplicates the mono channel to both left and right.
• swap exchanges the left and right channels of a stereo file.
• Output format matches the input format.