Dafydd Roche


Dafydd Roche is an audio converter systems engineer at Texas Instruments. A graduate of the University of York (U.K.), he pours his passion and knowledge of audio and music into his work, enabling audio design engineers to make products customers can’t wait to use. Aside from his engineering duties, Dafydd is also a musician himself and makes and records music with fellow musicians in the Dallas area.

Soundbar Design From Start To Finish: Software’s Role
The software in an audio system, such as a soundbar or PC speaker, can be split into a few different sections: control and user interface, housekeeping , and audio signal chain processing.
Soundbar Design From Start To Finish: Layout
Design reuse is a big part of modern product design, including home audio systems. Reducing systems to sections that can be copied and pasted over and over again is key to getting to market quickly.
Soundbar Design From Start To Finish: Power Amplifiers, Power Supplies, And ESD Protection
In Part 5 of this series on designing home entertainment sound bars, TI's Dafydd Roche covers amplifier class, analog/digital input decisions,and power-supply issues.
Soundbar Design From Start To Finish: Clocks, Clocks, Clocks
TI's Dafydd Roche completes his 4-part series on sound-bar design with a detailed explanation of clock design for the digital portion of the circuit.
Soundbar Design From Start To Finish: Choosing And Controlling An Audio Processing Scheme
Dafydd Roche's third column on soundbar design covers audio processing and system control
Soundbar Design From Start To Finish: From Specification To Selection
Second part of Soundbar Design from Start to Finish; This one covers parts selection; first was about developing specs.
Soundbar Design From Start To Finish: Setting Design Specifications
First in a series of tutorials about designing state-of-the-art soundbar speakers by Contributing Technical Expert Dafydd Roche of Texas Instruments.
Commentaries and Blogs
Guest Blogs
Sep 16, 2015

What is All This Nanogenerator Stuff, Anyway?

Nanogenerators, which harvest energy from the environment, could be the next big thing in renewable energy....More
Aug 11, 2015

Proof-of-Concept Prototypes versus Manufacturing Design Preparations 4

I have designed many early-stage proof-of-concept (POC) circuits, and observed many others do the same thing. It seems that there is often a huge disconnect between clients and engineers, though, when it comes to the goals of a POC design. In simple terms, an engineer worth his salt will overdesign an early POC circuit. This is because Murphy’s law always applies, and POCs are about overcoming unknowns. By overdesigning the circuit, one is able to prove the client’s product POC can be made to work, and quickly....More
Aug 4, 2015

Inconspicuous Pitfalls in Datasheet Analysis 1

Identifying the limitations of a datasheet saves lots of time, and cost, in terms of troubleshooting and redesigning circuits....More

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