AudioBoost is a Firefox web extension designed to improve the audio levels of quiet videos through advanced sound processing. By integrating the Web Audio API, it features a GainNode and DynamicsCompressor to increase volume while preventing distortion from excessive loudness. Users can easily control the audio settings via a user-friendly pop-up window, which includes sliders for gain, threshold, and ratio, allowing for precise adjustments based on individual preferences.

Key features of AudioBoost include an enable/disable button for quick access, a VU meter to monitor audio levels in real-time, and customizable controls for gain and compression. With the ability to set the gain to 1 for no additional amplification or adjust the threshold to define compression levels, users can tailor their audio experience. This extension is particularly useful for those who frequently watch videos with inconsistent sound levels.