Home / Technology / Fosi C3: Hear Enemies Before They Hear You
Fosi C3: Hear Enemies Before They Hear You
28 May
Summary
- New sound card enhances FPS game audio for better opponent detection.
- StepSense technology boosts subtle sounds like footsteps and vaulting.
- The C3 also amplifies headphones and connects to speakers and mics.

Fosi Audio has released the C3 Gaming Sound Card, an external device aiming to provide an advantage in first-person shooter games. Its core feature, StepSense technology, was trained on extensive FPS audio data to boost critical positional cues such as opponent footsteps and vaulting noises. This enhancement ensures these sounds are not lost within the game's overall audio mix.
The C3 also functions as a headphone amplifier and includes stereo RCA outputs for speakers. A dedicated 3.5mm input is available for microphones, complete with volume control and noise-canceling capabilities. The device supports 7.1 spatial audio and offers adjustable EQ and sound presets accessible through a web interface.
This versatile sound card is priced at $129.99 and is now available. It is designed for compatibility not only with PCs but also with popular consoles, including the Sony PlayStation 5 and the Nintendo Switch, broadening its appeal to a wider gaming audience.