Built the team for audio DSP/tuning/validation/test. Applying my experience in audio software engineering, product development, manufacturing, acoustics, speech enhancement algorithms, analog circuits, embedded systems, DSP, and audio machine learning to solve cross functional audio problems across the company- conduct acoustic studies for microphone arrays and loudspeakers- develop and support audio test on the manufacturing line- support electrical test at PCB and component end of line- support audio/acoustic hardware in the loop testing and automation- develop test automation and test reporting frameworks- coordinate regression testing for software releases- develop voice processing algorithms - adaptive beamforming, echo cancellation, and noise suppression - for phone calls and voice commands- develop/train/validate machine learning algorithms for voice processing- architect C libraries for audio signal processing- develop sound synthesis playback / support sound design- invent new machine learning architectures based on signal processing first principles- build acoustic data sets and data pipelines for voice processing and ASR speech to text- implement machine learning inference on embedded targets (bare metal/non-OS)- support DSP and software activities hardware design and build milestones- evaluate and bring up embedded audio DSP platforms- manage task assignments across a diverse team- set up git source control repositories and software development policiesMentor software engineers, DSP engineers, algorithm developers, and test engineers in DSP, software engineering, audio engineering and electrical engineering to stay laser focused on improving customer experience and providing value to the organization.

Advancing the state of audio technology, audio DSP, and audio validation at Tesla.

Audio signal processing, software engineering, C++11, Objective-C, iOS frameworks, MATLAB, python/numpy/scipy, test automation frameworks, unit testing, version control using git and svn, speaker protection, feedback control algorithms, noise suppression, echo canceller, limiters, dynamic range compressors, resampling, beamforming.Initiated the sound event detection effort and laid the groundwork for applications and a data collection bootstrap strategy.

FPGA development, embedded systems design, digital signal processing, particle filtering, gps position estimation, embedded microcontroller programming, analog circuit design, power circuit design.

Part-time temporary/consulting employment to investigate adaptive signal processing applied to beamforming.Implemented adaptive beamforming algorithms in MATLAB and demonstrated effectiveness. (LMS beamformer, Frost beamformer, Generalized Sidelobe Canceller (GSC), and robust LMS beamformer). Developed variable beampattern first order differential microphone implemented purely in analog.Built and tested low noise mic preamp circuits.Developed and demonstrated new product prototype.

Developed physical modeling, virtual analog, and audio plugins. Developed course material to teach nonlinear methods for physical modeling of musical instruments. Specialized in nonlinear ODE system simulation of audio circuits and guitar effects. Invented procedure and developed software to programmatically derive real time nonlinear effects from circuit schematic level descriptions.

Investigate nonlinear physical modeling for musical instruments/electronics.Developed expertise in loudspeaker measurements and acoustics.Developed filter design and system identification methods.Ported audio block diagram compiler to run on linux CLISP.

Designed a class H amplifier using analog signal processing, off the shelf DC-DC ICs and a hifi class AB audio amplifier IC. Demonstrated improvement in both power efficiency and THD, validated by measurements with Audio Precision instrumentation.

Designed HV integrated circuits for ultrasonic sensors. Designed PCB and data acquisition for ultrasonic array imaging. Developed signal processing and imaging software from scratch to construct 3D ultrasonic images from pulse echo recordings.

Developed data acquisition to characterize thin film amorphous Si photovoltaic diode arrays manufactured using a reel-to-reel process. Interface probes, sources, relays, IV measurement instruments, DMM using HPIB using Labview and analyzed data in matlab.

Developed web crawler in Java to mine structure data in web resumes. Ported code between versions of Java SDK.