Adjustment Mode Explanation:
- Volume Gain Adjustment: Manually set volume increase or decrease (dB or percentage); positive values increase, negative values decrease
- Volume Normalization: Automatically adjust audio peaks to the maximum level to fully utilize dynamic range
- Loudness Normalization (EBU R128): Adjust overall loudness according to broadcast standards, suitable for professional use
Features:
- Supports batch processing of multiple audio files
- Customizable volume gain (-20dB to +20dB) or percentage (10% to 500%)
- Supports multiple output formats: MP3, WAV, FLAC, AAC, OGG
- Adjustable output bitrate, sample rate, channels, and other parameters
- Clipping prevention to avoid distortion caused by excessive amplification
Use Cases:
- Unify volume levels across multiple audio files for seamless playback
- Increase volume of quiet recordings to improve audibility
- Reduce overly loud audio to protect hearing
- Standardize volume when producing podcasts, video voiceovers, and other content
- Batch process music libraries to maintain a consistent listening experience
Steps to Operate:
- Select one or more audio files to adjust
- Choose adjustment mode (Gain Adjustment / Normalization / Loudness Normalization)
- Set target volume or loudness value
- Select output format and quality settings
- Click the "Start Processing" button
- Wait for processing to complete, then download the results
Tips:It's recommended to make small adjustments first (e.g., +3dB or -3dB) to preview the effect and avoid quality loss from over-adjustment. Using "Loudness Normalization" ensures professional-level volume consistency, ideal for podcasts and broadcast content.