Flac Gain Fix Online
Navigate to the album folder. To write both track and album gain based on the album context:
# Install (macOS/Linux/Windows via cargo) cargo install r128gain r128gain -a /path/to/album/folder flac gain fix
find /path/to/music -name "*.flac" -print0 | xargs -0 metaflac --add-replay-gain (But be careful—this treats your entire library as one giant "album," which is rarely correct. Always scan per album folder.) foobar2000 is the gold standard for audiophiles on Windows. Its ReplayGain scanner is fast, accurate, and offers a preview. Navigate to the album folder