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This conference talk explores the challenges of designing quality audio solutions for low-cost embedded products, presented by Shree Kumar and Atharva Upadhye at ADCx India 2025. Discover how to overcome the difficulties of achieving high-quality audio in embedded systems that can't reach the production volumes of consumer products. Follow the speakers' iterative process of selecting appropriate components for microcontroller-based solutions, examining various audio codec ICs including Cirrus Logic WM8758, Princeton Tech PT8211, and ultimately the Everest Semiconductor ES8388. Learn about essential concepts like I2S interface (master/slave), codec configuration, and how to optimize clocking architecture using the Raspberry Pi RP2040 microcontroller's PIO peripheral to eliminate discrete crystals and reduce costs. The presentation provides practical insights for engineers seeking to balance audio quality with cost constraints in embedded system design.
