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HALOWERK Loudness Report
x402
HALOWERK Loudness Report is a paid API for AI agents from medien.halowerk.com, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-31).
Analyzes 1–20 audio or video files for EBU R128 loudness metrics (integrated LUFS, true peak dBTP, loudness range LU, duration) and rates each against standard targets like podcast, streaming, broadcast, and audiobook.
Price / call$0.002
Success—
StatusUnknown
How this service works
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.
Output
A per-file report containing integrated loudness in LUFS, true peak in dBTP, loudness range in LU, and duration; each file is rated pass or fail against each requested target (podcast, streaming, broadcast_ebu, broadcast_atsc, audiobook_acx) with the gain in dB needed to reach that target. Files that cannot be decoded are flagged with an error rather than silently dropped.
Example use cases
Podcast episode pre-publish loudness check
“Before I upload this week's episode, can you measure the loudness of https://cdn.mypodcast.com/ep101.mp3 and tell me if it passes the podcast -16 LUFS standard and what gain I'd need to fix it if not?”
ACX audiobook submission compliance check
“I need to submit a narration to ACX — can you run a loudness report on https://files.example.com/chapter1.wav against the audiobook_acx target and tell me if the integrated LUFS, true peak, and loudness range all pass?”
Batch loudness audit for broadcast
“I have three recordings that need to meet EBU broadcast standards before airing — can you check all three files at https://media.example.com/spot1.wav, https://media.example.com/spot2.wav, and https://media.example.com/spot3.wav against the broadcast_ebu target and report which ones pass?”
Technical details
Endpoint
POSThttps://medien.halowerk.com/v1/loudness-report?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need standards-compliant EBU R128 loudness measurements (LUFS, dBTP, LU) with explicit pass/fail ratings against industry presets (podcast, streaming, broadcast, audiobook) for up to 20 files at once. It is purpose-built for audio/video QA workflows, pre-publication compliance checks, and batch loudness auditing — more targeted and cheaper than sending files to a general-purpose AI transcription or audio processing service.
Side effects
- File exceeds 24 MB limit — reported as error for that file
- File cannot be decoded by ffmpeg — reported with error, not dropped
- URL is inaccessible or times out — reported as error
- More than 20 files submitted — request rejected
- base64 content too large — exceeds field length limit
- Invalid target enum value — request rejected with validation error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| files | array | |
| targets | array |
Tags
x402
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