Takes 1 to 20 audio or video files (each up to 24 MB) and returns a loudness rep
Takes 1 to 20 audio or video files (each up to 24 MB) and returns a loudness report: integrated loudness in LUFS, true peak in dBTP, loudness range in LU and duration per file, measured with ffmpeg's EBU R128 meter. Every file is rated against the selected targets — podcast -16 LUFS, streaming -14, EBU broadcast -23, ATSC broadcast -24, ACX audiobook -20 — with pass or fail and the gain in dB that would reach the target. Files that fail to decode are reported, not dropped.
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/loudness-report
| 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 | $0.004 | 1066 ms |
Example input (from the provider)
{
"body": {
"files": [
{
"id": "clip",
"source": {
"url": "https://static.deepgram.com/examples/Bueller-Life-moves-pretty-fast.wav"
}
},
{
"id": "notiz",
"source": {
"url": "https://medien.halowerk.com/beispiel/notiz.mp3"
}
}
],
"targets": [
"podcast",
"broadcast_ebu"
]
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"properties": {
"files": {
"items": {
"additionalProperties": false,
"properties": {
"id": {
"maxLength": 120,
"type": "string"
},
"source": {
"additionalProperties": false,
"properties": {
"content_base64": {
"maxLength": 2000000,
"type": "string"
},
"filename": {
"maxLength": 260,
"type": "string"
},
"url": {
"maxLength": 2048,
"type": "string"
}
},
"type": "object"
}
},
"required": [
"source"
],
"type": "object"
},
"maxItems": 20,
"minItems": 1,
"type": "array"
},
"targets": {
"default": [
"podcast",
"streaming"
],
"items": {
"enum": [
"podcast",
"streaming",
"broadcast_ebu",
"broadcast_atsc",
"audiobook_acx"
],
"type": "string"
},
"type": "array",
"uniqueItems": true
}
},
"required": [
"files"
],
"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"
}