Welcome to Focus Fidelity. We create software to advance the state-of-the-art of music reproduction in your home. Our software effectively calibrates audio playback for your loudspeakers and room acoustics, resulting in, quite simply, Higher Fidelity.

The calibration and playback process is called Digital Room Correction (DRC) or Digital Room Calibration or Digital Room Equalization. It is the process of filtering an audio signal during playback. The filter combined with room and loudspeaker characteristics produces a total result that is more accurate than the loudspeakers and room alone.

Our software generates the filters from measurements taken of the room and loudspeakers. The measurement process and, more importantly, the filter design process are the critical elements to arriving at an accurate result. Focus Fidelity software uses multiple measurements taken at several positions in the listening area. The measurements combined with user-specified targets are the inputs to our proprietary filter design process. As a result, you can expect accurate bass reproduction, improved stereo imaging, elimination of loudspeaker induced phase & impulse response distortions, and total control of tonal balance.

The filter design application generates filters compatible with software such as Accurate Sound's HLC, Roon, JRiver Media Center, and HQPlayer.

Future developments will include digital crossovers, bass management, and multiple subwoofer optimization.


There are two software packages for download on this website. The first is the filter design application, which is available for purchase.

The second is our measurement application called Impala. Impala is simple to use and free of charge. Performing the required measurements is quick and easy.

Windows and macOS versions are available. The macOS versions are universal binaries for Intel and Apple Silicon.

Download our freeware measurement application for Microsoft Windows and macOS here,

For updates on the latest releases, development progress & new products,