uberstorm/fifinek688companion

This is a free desktop companion application for Windows users who own the Fifine K688 USB microphone. The app provides a visual interface for controlling audio processing settings that Equalizer APO (a free third-party audio driver layer for Windows) applies to the microphone in real time. Instead of editing Equalizer APO's plain-text configuration file by hand, you adjust knobs and sliders in the app and it writes the changes instantly. The application includes a full audio channel strip: gain controls for input and output levels, a noise gate with adjustable attack, release, and threshold, a compressor, a de-esser for reducing harsh sibilant consonant sounds, and a limiter. There is also a ten-band equalizer with both a parametric mode (where you drag individual frequency nodes) and a graphic mode. A noise gate auto-calibration button listens to your room for five seconds and sets the background noise threshold automatically. A live waveform visualizer runs at 60 frames per second so you can see your voice in real time. A built-in audio monitor lets you hear the effect of your settings through the browser's Web Audio API without needing to open a streaming program or recording application. The app also warns you if your Windows sound settings are not at the recommended 48,000 Hz and 24-bit quality level. Preset management comes with seven factory presets tuned for the K688, including podcast, ASMR, and gaming profiles. You can save and delete your own presets and import or export them as JSON files to share with others. The interface has a dark and a light mode. Setup requires installing Equalizer APO, checking the Fifine K688 in its configuration tool, restarting Windows, and then running the companion app installer from the releases page. The app is built with Electron, React 18, and Vite. It is an unofficial community project with no affiliation with Fifine.