Dive into a comprehensive video tutorial on audio filters and their applications in improving sound quality. Learn about various types of filters including compressors, notch filters, shelf filters, and limiters. Explore the setup for measuring audio signals, understand the ADAU1452 board for audio processing, and delve into concepts like low pass filters, peaking filters, and signal-dependent filters. Discover the loudness algorithm for adjusting sound to the human ear, room acoustic correction techniques, and the inner workings of audio compressors. Gain insights into volume manipulation, attack-decay-sustain-release (ADSR) envelopes, audio dithering, and different dB types. Master the art of setting up filters for optimal sound, understand active noise cancellation, and differentiate between limiters and compressors in this extensive audio engineering guide.