Media
Audio Caption Sync Checker
Compare SRT or WebVTT cue timing with likely speech activity and flag timing drift.
json· JSON 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-caption-sync-checker' \
-H 'Content-Type: application/json' \
-d '{"filename":"audioFile.ext","contentType":"application/octet-stream","size":12345}'
curl -X POST 'https://api.elysiatools.com/api/upload/presign/audio-caption-sync-checker' \
-H 'Content-Type: application/json' \
-d '{"filename":"captionFile.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-caption-sync-checker' \
-F 'audioFile=uploads/2026/01/01/your-tool-1700000000000-abc123.ext' \
-F 'captionFile=uploads/2026/01/01/your-tool-1700000000000-abc123.ext' \
-F 'captionFormat=auto' \
-F 'toleranceSeconds=0.25'