The Next Byte Podcast · 12 Dec 2023 · 20m
Hosts Daniel and Forbode discuss how active noise cancellation (ANC) technology, traditionally found in headphones like AirPods Pro, is being adapted for electric and autonomous vehicles to reduce road and wind noise. They explain the engineering challenges of achieving perfect destructive interference in a complex cabin environment, including timing, coverage, and safety constraints. The conversation highlights how software-defined vehicles use algorithms to create a 'quiet bubble' around passengers, allowing manufacturers to reduce the physical mass of sound-deadening foams, thereby improving EV range and efficiency.
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Jesse Will, a contributing editor for Rolling Stone, joins EE Times host David Finch at CES 2019 to discuss emerging automotive technologies. They explore Audi's motion-synchronized VR concepts, Bose's active noise cancellation systems, and Kia's AI-driven emotion-adaptive driving interface. The conversation also covers Continental's structural speaker technology and Intel's vision of cars as roaming home theaters.
Remco Stoutjesdijk, founder of ItsOnlyAudio.com, discusses his journey from building vacuum tube amplifiers to designing audio DSP chains for companies like Wolfson Microelectronics and ASK Industries. He details the technical challenges of implementing active noise cancellation in automotive audio systems, including the use of accelerometers, transfer function estimation, and stability issues in control loops. The conversation covers the transition from analog to digital audio, the economics of high-end car audio brands like Bang & Olufsen and Burmester, and the shift toward software-defined audio platforms using Cortex-M4 and DSP chips.
Semicast research analyst Colin Barden argues that the autonomous vehicle (AV) industry's promise of saving lives is a hubristic distraction from the more viable path of advanced driver assistance systems (ADAS) and driver monitoring. He contrasts the 'left fork' of tech companies like Waymo with the 'right fork' of traditional automakers focusing on collaborative driving. The episode then shifts to a roundtable with EE Times editors Junko Yoshida, Sally Ward-Foxton, and Anne-Françoise Palais on the surge of voice recognition technology in consumer electronics, driven by the need for edge processing to reduce cloud costs and improve privacy.
Lenora Clark, Director of Autonomous Driving and Safety Technology at MacDermid Alpha Electronics Solutions, discusses the shift toward software-defined vehicles and the integration of advanced electronics in automotive design. She explains how sensor fusion (combining cameras, radar, and LiDAR) enables Level 3 autonomy and how in-mold electronics are transforming human-machine interfaces (HMI) through decorative, functional surfaces. The conversation also covers the challenges of EV charging infrastructure reliability, the cost pressures of increased electronic content on vehicle pricing, and the strategic move toward onshoring manufacturing to improve supply chain resilience.
Micheal Worry, CEO of Nuvation Engineering, explains how his 100-person design firm takes clients from marketing requirements to shipping products, emphasizing their 'gut check' process to align budget and schedule early. He details the development of Disco Fish, an autonomous Burning Man vehicle, and the E-Rex electric race car, which served as testbeds for their Nuvation Autopilot and battery management systems. Worry discusses the importance of 'first-time right' engineering, the distinct skills required for FPGA versus embedded work, and how Nuvation Garage fosters innovation through passion projects like the air hockey robot.
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