1. Andy Unruh 408·209·0117
15447 Stratford Drive, San Jose, CA 95124, andrew_unruh@yahoo.com
Professional Profile
Accomplished acoustic engineer/algorithm developer with a history of solving difficult and
novel problems in multiple industries and disciplines. Able to effortlessly move between
theoretical, inventive, and implementer modes of work.
 Physical Modeling
 Algorithm Development
 Acoustical Measurement
 Automated Test Design
 Troubleshooting
 Mechanical Design
 Technical Team Management
 Transducer Design
 Training
Professional Accomplishments
Acoustics
 Finite Element Analysis of Head and Torso Simulators and Handsets, Principal
Investigator
 Room Impulse Response Simulation, Principal Investigator
 Linear Array Transducer (LAT), Principal Inventor
 Self-calibrating adaptive subwoofer, Principal Inventor
 Robotic handset positioner, Principal Inventor
 Characterization and calibration of handsets for algorithm parameterization, Principal
Investigator
 Low cost-high accuracy displacement sensor, Principal Investigator
 Multi-Voice Coil loudspeaker to increase efficiency and reduce distortion, Principal
Investigator
Algorithm Development
 Loudspeaker nonlinear distortion reduction, Principal Inventor
 Novel ANC Algorithm with improved bandwidth, Principal Investigator
 3-D virtualization of audio, Principal Developer
 High dynamic range ADC, Principal Inventor
 Automated room equalization using RT-60 metric, Principal Inventor
 Loudspeaker thermal protection, Principal Inventor
 Improved AEC Reference, Principal Inventor
Physical Modeling
 Lumped parameter analysis of the Linear Array Transducer, Principal Investigator
 Simulated handset echo response, Principal Investigator
 An improved loudspeaker blocked impedance model, Co-Investigator
 Model of jump resonance in loudspeakers, Co-Investigator
 Finite Element Analysis of HATS/Handsets in an anechoic environment. Principal
Investigator
 Room Impulse Response Synthesis of Handset in a Room. Principal Investigator
 Solution to nuclear core flow shortfall, Principal Investigator

2. Andy Unruh408-209-0117Andrew_Unruh@yahoo.com
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Management
 Managed Acoustic Applications Engineering group at Audience
 Managed Acoustic Algorithm Engineering at Audience
 Spearheaded technical integration plan between Knowles and Audience
 Created an acoustics knowledge base at Audience
 Managed the engineering group at IAS.
 Technical Project Manager at General Electric
Work History
Principal Eng./Mgr. Audience, Mountain View, CA 2007-Present
Principal Engineer Tymphany, Cupertino, CA 2003-2007
VP, Eng./Cofounder IAS, Berkeley, CA 2001-2003
Owner Unruh Acoustics, San Jose, CA 1999-2001
Sr. Dev. Engineer Aureal Semiconductor, Fremont, CA 1997-1999
Sr. Engineer Microbar, Santa Clara, CA 1996-1997
Sr. Engineer/Proj.
Mgr.
General Electric, San Jose, CA 1989-1996
Education
BS, MS, Engineering U.C. Santa Barbara 1988
References
References are available upon request.