Audio effects are essential tools in sound design, allowing you to shape and transform the character of your sounds. Effects like delay and reverb add depth, space, and dimension, making audio more interesting and expressive. In a typical signal chain, you connect your sound source—such as a synthesizer—to one or more effects before sending the final output to the speakers. Each effect processes the signal in a unique way: delay repeats the sound after a short interval to create echoes, while reverb simulates the natural reflections of sound in a physical space, adding a sense of environment. By ordering and combining effects, you can craft a wide range of sonic textures and atmospheres, enhancing the musicality and realism of your web-based audio projects.