Media
Audio Sidechain Compress
Mix two tracks using sidechain compression (e.g., voice or ads audio when overlaying sidechain audio)
file· File resultOpen tool
Quick start
Call this tool from your code in three languages.
cURL
# 1) Request a presigned URL → returns { uploadUrl, storageKey }
curl -X POST 'https://api.elysiatools.com/api/upload/presign/audio-sidechain-compress' \
-H 'Content-Type: application/json' \
-d '{"filename":"mainAudio.ext","contentType":"application/octet-stream","size":12345}'
curl -X POST 'https://api.elysiatools.com/api/upload/presign/audio-sidechain-compress' \
-H 'Content-Type: application/json' \
-d '{"filename":"sidechainAudio.ext","contentType":"application/octet-stream","size":12345}'
# 2) PUT the file bytes directly to the presigned uploadUrl
curl -X PUT '<presigned uploadUrl>' \
--data-binary @/path/to/file.ext
# 3) Call the tool, passing the returned storageKey for each file field
curl -X POST 'https://api.elysiatools.com/en/api/tools/audio-sidechain-compress' \
-F 'mainAudio=uploads/2026/01/01/your-tool-1700000000000-abc123.ext' \
-F 'sidechainAudio=uploads/2026/01/01/your-tool-1700000000000-abc123.ext' \
-F 'offset=e.g., 5 or 00:00:05' \
-F 'threshold=-20dB' \
-F 'ratio=4' \
-F 'attack=20' \
-F 'release=300' \
-F 'outputFormat=mp3' \
-F 'sampleRate=auto' \
-F 'channels=auto'