Learn to master envelopes and filters in this 20-minute video tutorial focusing on the Cherry Audio Elka X synthesizer. Explore fundamental concepts including envelope phases (Attack, Decay, Release), filter types with emphasis on Low Pass Filters, and advanced techniques like Keyboard Tracking and Time-Based Envelopes. Discover how to create dynamic sounds using envelope inversion and understand the relationship between filter parameters and envelope settings for more expressive sound design capabilities.