APU Software TrueGain 4.3.6

The perceived frequency balance of your mix changes dramatically with playback volume. The TrueGain APU is a utility designed to address this fundamental challenge by applying precise frequency compensation gain based on established loudness contours such as ISO 226.

To ensure accurate perceptual modeling, TrueGain features a simple calibration process that aligns the plug-in with the actual Sound Pressure Level at your listening position. Using any standard SPL meter, you can compare the plug-in to your physical environment, ensuring all volume simulations are accurate and repeatable.

Its two main workflows are

Gain compensation segmentation: Apply gain adjustments to maintain the perceived tonal balance of the source audio.

Displacement testing: Without changing the monitor volume, use the target SPL parameter to accurately simulate the sound The sound of your mix at different levels - from quiet listening at home to loud club music.

A comprehensive, real-time spectrum analyzer provides clear visual feedback of your source, destination, and output signals throughout the process.