Audit Audio Track Loudness and True Peak Headroom for Broadcast Standards
Mastering podcast episodes and streaming audio for Apple Podcasts, Spotify, and YouTube requires hitting strict loudness standards, but improper limiter settings lead to platform volume penalties and digital inter-sample distortion. Enter your audio track integrated LUFS, maximum true peak readings, and platform standards to audit compliance and flag true peak violations.
1 · audio segment name | integrated LUFS (negative number) | max true peak in dBTP
FIRST-LOAD
HYPOTHESIS / PROTOTYPE — checkout unavailable. Calculation is local. A draft is saved automatically in this browser profile when storage is available; Reset to sample clears it. Optional Pro history stores only five summaries and has its own deletion control. State links encode your inputs and can remain in browser history, clipboard or recipients’ records; share only non-sensitive rows. Optional external AI formatting leaves this device. The required site analytics beacon reports page activity; shared URLs contain encoded inputs. Do not treat an encoded URL as private. The calculator has no input-collection endpoint.
Data note: The loudness-compliance board processes audio segment name | integrated LUFS (negative number) | max true peak in dBTP locally. Starter/sample selection and Run compute in this tab; no input is sent by the calculator. A local draft may be saved; explicit state-link sharing or optional external AI formatting can disclose inputs. Use non-sensitive labels.
Perspective: Before: mastered podcast episodes were rejected or distorted by platform volume normalization. After: integrated LUFS and true peak headroom are audited directly against streaming broadcast standards.
2 · Read the loudness-compliance board
Audio engineering loudness arithmetic only, not digital signal processing certification or acoustic broadcast warranty. Streaming platform delivery specifications and transcoding codecs evolve over time. Test final masters in target listening environments.
Paid layer: loudness-compliance board filing layer
one-time step · the free reading above stays complete
Free tier
- one complete unwatermarked loudness-compliance board run in the app
- three labeled samples and unlimited article-demo calculations
- complete result text and a user-triggered input-state link
What $4 one-time adds
- unlimited subsequent loudness-compliance board app calculations after a local convenience signal
- print the loudness-compliance board with visible assumptions and its safety boundary
- CSV of the displayed LUFS and row workings; conditional estimate uses your manual-retyping minutes
- five local reading summaries (headline/count/time), not saved full inputs or cross-device backups
HYPOTHESIS / PROTOTYPE: $4 is a proposed one-time price for filing the loudness-compliance board, not a current sales offer. No measured time saving or buyer demand is claimed. The optional manual-retyping baseline above estimates one export’s retyping budget only; it does not change the calculation or guarantee savings.
Local history (this device)
- No saved runs yet — your first run files here.
Checkout is unavailable. Browser-local, profile-scoped convenience gating is best-effort, not server-verified access. A URL or browser flag is not proof of payment. Clearing browser data removes local state; no account or cross-device recovery is provided.
Boundary and sources
Audio engineering loudness arithmetic only, not digital signal processing certification or acoustic broadcast warranty. Streaming platform delivery specifications and transcoding codecs evolve over time. Test final masters in target listening environments.
- Method: Select your target broadcast platform benchmark (-14.0 LUFS for Spotify and Apple Podcasts; -16.0 LUFS for public radio / European standards).
- All sample records, dates, quantities and labels are invented. No outside policy, contract, rate, clock offset, measurement or accessibility standard is represented as verified.
- Google’s official pricing documentation, fetched 2026-09-30, says AI Studio is free in available regions. Optional formatting may require a Google account; manual local entry requires none. Limits can change and free-tier content may be used to improve products. Do not send private records.
Mechanism: competence-autonomy-loop
Optional AI formatting, never the calculation
Manual entry completes this loudness-compliance board for free without signup. If available to you, the free AI Studio interface linked in the sources may format fictional or non-sensitive notes; external access may require an account. No API key or AI call is built into this tool. Free-tier content may be used to improve products. Review each cell and transcribe it to the labeled row schema; do not paste the JSON object into the row box.
Format only these fictional or non-sensitive notes for a loudness-compliance board. Return strict JSON shaped as {"rows": [{"label": "string", "cells": ["string", "string"]}], "setting": "string"}. The columns are audio segment name | integrated LUFS (negative number) | max true peak in dBTP; the setting is Target platform integrated LUFS standard. Keep all supplied strings and quantities exactly; do not calculate, infer missing entries, invent dates or add advice. If any required value is missing, return an empty rows array and ask me for it separately. I will verify every cell against my source and manually transcribe rows using vertical bars before running the local calculator.An AI response is not executed, fetched or trusted as a result. Missing values remain questions; the strict local parser checks the rows you actually enter.