Audio Normalizer

AnkiWeb addon 1940848907

Measures card audio and creates verified, volume-adjusted copies for consistent loudness, with batch, preview, automatic, and original-restoring options.
AI-generated summary; may contain mistakes.

note-management beta

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AnkiWeb

Votes: 1 (👍 1 · 👎 0)
Updated: 2026-08-12
Anki versions: 26.05~
License: MIT (from the license file in the package)
Virus scan: No ClamAV match A match does not prove malware. No match does not prove that the code is safe.
Languages: Python, JSON
Description language: en

Maintenance

active

Last update or commit: 2026-08-12 (81 days before the snapshot).

GitHub

Repository: namidanokisetsu/anki-audio-normalizer · more by namidanokisetsu
Stars: ⭐ 0
Last commit: unknown

Will it work on my Anki?

Version branches

Min Anki	Max Anki	Updated
25.09.4	26.05+	2026-08-12

History across monthly snapshots

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Description

Audio Normalizer - Consistent Card Loudness

Audio from different sources often plays at inconsistent volumes. Audio Normalizer measures card audio and creates verified, volume-adjusted copies so you do not need to change the volume while reviewing.

Highlights

Normalize a deck, an Anki search, the current Browser results, or selected notes
Preview a representative sample before changing anything
MP3 output or source-container preservation for supported formats
Optional automatic runs after startup, sync, or note edits
Cancellable background processing with a detailed report
Restore eligible note references to retained originals

Processing is local. Card text and audio are never uploaded. The add-on does not download or install executables.

Important safety information

The add-on creates new media files and relinks matching notes. Original files are never overwritten or deleted. Before a broad first run, export an all-decks .colpkg with Include media. Do not use Check Media -> Delete Unused until you have verified the result, because retained originals may appear unused.

Automatic normalization is disabled by default. Generated files use additional local and AnkiWeb media storage.

Requirements

Anki 25.09.4 or newer (tested through 26.05)
Windows x64, macOS Intel/Apple silicon, or Linux x64/ARM64
A current FFmpeg installation containing loudnorm, libmp3lame, libopus, aac, flac, and pcm_s16le

Installation and FFmpeg instructions, source code, privacy details, and issue reporting:

https://github.com/namidanokisetsu/anki-audio-normalizer

Version 0.9.0 beta. MIT licensed.