Media
Audio Description Ducking
Mix an audio-description narration into program audio while ducking the program when narration is present.
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-audio-description-ducking' \
-H 'Content-Type: application/json' \
-d '{"filename":"programFile.ext","contentType":"application/octet-stream","size":12345}'
curl -X POST 'https://api.elysiatools.com/api/upload/presign/audio-audio-description-ducking' \
-H 'Content-Type: application/json' \
-d '{"filename":"descriptionFile.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-audio-description-ducking' \
-F 'programFile=uploads/2026/01/01/your-tool-1700000000000-abc123.ext' \
-F 'descriptionFile=uploads/2026/01/01/your-tool-1700000000000-abc123.ext' \
-F 'duckingDepthDb=-12' \
-F 'outputFormat=mp3'