Engineer Quality

Xavier Chabot

**** ****** **** *****

Dublin, CA

94568

Home: 925-***-**** *******@*******.*** Cell: 408-***-**** SUMMARY

Audio and

Video Digital Signal Processing Engineer

with broad experience in media processing applications. Combines theoretical

background in Digital Signal Processing applied to audio and video algorithms with

awareness of implementation and optimization issues on embedded systems.

Core

strengths in

Digital Signal

Processing

Implementation

Aware Design of Novel Audio and Video Algorithms

Software

Defined Radio

Audio Codecs,

Audio Post-Processing and Audio Quality Testing

Video Algorithms

for Motion Estimation and Frame Rate Conversion

Software Development,

Benchmarking, and Optimization on VLIW Processors

TECHNICAL SKILLS

Languages

C / C++, Matlab, Perl, Expect, Shell Script, Visual BASIC

SDE

/ Tools

Eclipse, MS

Visual C, Matlab, Audio Precision AP27000, Oscilloscope

PROFESSIONAL EXPERIENCE

TRIDENT MICROSYSTEMS,Sunnyvale,

CA 2010 Present

Contractor for the business line Digital TV systems

Implement

and optimize 2D to 3D conversion algorithm for 3D-enabled digital TVs.

PHILIPS ELECTRONICS, NXP SEMICONDUCTORS, San Jose, CA 1999 2010

Senior Audio

Software Engineer

Developed, as member of TriMedia team, algorithms

for next-generation media processing applications on VLIW-based processor.

Analyzed

quantization noise issues on floating-point and fixed-point IIR filters. Developed low-noise and efficient IIR

structures, including implementation and optimization on TriMedia VLIW

processors. Wrote 80-page application note covering optimization issues,

implementation and theory and analysis of quantization noise in recursive

filter structures and measurements.

Designed

novel global motion estimation algorithms for HD video frame rate conversion,

resulting in higher picture quality in corner cases.

Saved

processor resources in large video and audio applications and created benchmark

measurements to promote TriMedia VLIW processor by prototyping audio and video

algorithms and implementing highly optimized version on TriMedia VLIW

processor-based embedded platform.

Developed,

ported, tested, and optimized high quality acoustic echo cancelling algorithm

onto TriMedia VLIW processor resulting in benchmark measurements and customer

demonstrations.

Developed,

ported, and optimized high quality asynchronous sample rate converter for

module used in nominal sample rate conversion and video-audio synchronization in

digital TV, set-top box and other products.

Developed

efficient prototyping method which provided shorter and safer transition

between advanced development and final product.

PHILIPS

ELECTRONICS, NXP

SEMICONDUCTORS (Continued)

Improved

balance between software, instruction set and co-processor by performing design

space exploration for mapping audio and video algorithms to novel CPU

architectures.

Saved

money and increased time to market of products by creating simple, reliable,

and efficient method for audio codec quality evaluation to allow use of reduced

number of subjects while retaining statistically meaningful results.

Extended

use case coverage and customization for high-end TV and set-top boxes by

developing, optimizing and testing streaming media processing software for

embedded application.

T-SQUARE DESIGN, Santa Clara, CA 1998

1999

Audio Group Project Leader, Audio DSP Algorithm

Engineer

Supervised design and implementation of audio products

including audio-rack, sound effect and drivers as part

of high quality software stack supporting audio chip

product. Led China team to port reference

implementation to target audio

IC product.

Designed

audio algorithms with full reference implementation in Matlab

and C and documentation, including HRTF-based 3D audio, reverberation, EQ,

phantom bass, stereo expansion, virtual surround, sample rate conversion algorithms.

Created

highest audio quality with smallest possible memory footprint by designing

General MIDI Sample Library including wave table sound selection and editing,

and instrument parameterization.

EDUCATION

Ph.D.,

Computer Music, University of California, San Diego, CA

Graduate classes in signal

processing, SCPD, Stanford University,

Palo Alto, CA

MS, French 'DEA': Computer

Science, Paris University VI, France

BS, French 'Maitrise,' Physics, Paris University VI, France

LANGUAGES

Native: French

Fluent: English, Spanish, Italian, German, Japanese

PUBLICATIONS

Three Patent Applications in processor architecture

and speech processing

Seven

Patent Invention Disclosures in video processing, audio processing, and

processor architecture

NXP

Application notes: quantization noise, motion estimation

To

Listen and to See, Leonardo Music Journal, vol. 3, 1993

Gesture

Interfaces, Computer Music Journal, MIT Press, 1989

Presentation

papers in the International Computer Music Conference Proceedings,

19984,85,86,87,89,91,93

STATUS

French citizen; Permanent resident with Green Card

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