MP3Gain uses 89 dB as default, but you can change to 87.
⚠️ MP3Gain works only on MP3, not WAV/FLAC.
4.1 Loudness Measurement
4.2 Gain Calculation
4.3 Peak Limiting and Safety
4.4 Metadata Handling
4.5 Batch and Streaming
6.1 Test Materials