Takes an audio or video file and the text spoken in it, and returns your text wi
Takes an audio or video file and the text spoken in it, and returns your text with timings: every word with start and end, every line with start and end, and ready SRT, WebVTT and LRC (karaoke/lyrics) files built from your own lines, so your spelling, punctuation and line breaks are kept. The recording is transcribed with word timestamps and your words are laid onto the recognised words by global sequence alignment.
Answeringour last check, 2026-10-31
1 of 1checks answered this week
1404 msmedian answer time
$0.025listed price per call
$0.025price it asked us
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
POST https://medien.halowerk.com/v1/forced-align
| Category | Image and media |
|---|---|
| Provider host | medien.halowerk.com |
| Networks | eip155:8453 |
| Payment schemes | exact |
| Self-reported calls, 30 days | 1 from 1 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-10-31 | valid payment request | 402 | $0.025 | 1404 ms |
Example input (from the provider)
{
"body": {
"duration_minutes": 1,
"language": "en",
"source": {
"url": "https://static.deepgram.com/examples/Bueller-Life-moves-pretty-fast.wav"
},
"text": "Life moves pretty fast.\nIf you don't stop and look around once in a while, you could miss it."
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"properties": {
"duration_minutes": {
"description": "Length in started minutes \u2014 this is what you are billed for.",
"maximum": 30,
"minimum": 1,
"type": "integer"
},
"language": {
"description": "BCP-47 code of the spoken language. Strongly recommended.",
"maxLength": 12,
"type": "string"
},
"source": {
"additionalProperties": false,
"description": "The recording. Either url or content_base64.",
"properties": {
"content_base64": {
"maxLength": 11000000,
"type": "string"
},
"filename": {
"maxLength": 260,
"type": "string"
},
"url": {
"maxLength": 2048,
"type": "string"
}
},
"type": "object"
},
"text": {
"description": "The text spoken in the recording. Line breaks define the lines of the SRT, VTT and LRC output.",
"maxLength": 60000,
"minLength": 1,
"type": "string"
}
},
"required": [
"source",
"duration_minutes",
"text"
],
"type": "object"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
},
"method": {
"enum": [
"POST",
"PUT",
"PATCH"
],
"type": "string"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method",
"bodyType",
"body"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}