Loudness Python Packages

loudness

The world's fastest Python package for calculating integrated loudness (LUFS) from audio data as NumPy arrays

libsonare

Dependency-free audio engine for C++, Python, Node.js & WASM: analysis, mastering, mixing, built-in instruments, and a headless-DAW runtime

sounddifff

Audio diff for producers and developers, with CI checks (--fail-if) and a GitHub Action. Continuation of systemBlue's sounddiff (MIT), maintained by jaimefgdev.

fx-dub

Verify a generated dub before anyone hears it — container receipts and spoken-content receipts for AI dialogue pipelines.

loudcheck

Loudness compliance verdicts against formal published standards (EBU R128, ATSC A/85) — pass/fail with exact deltas and remediation, not raw meter output. CLI + MCP over one ffmpeg-based engine.

audio-bed-check

Checks a rendered audio bed for loops and level jumps, and a voiceover mix for separation. Exit codes for CI.

pala

Python Audio Loudness Analysis

matchpatch

Preset normalization and comparison for audio processors

lupy

Python library for Audio Loudness measurements