Eric Bezzam bio photo

Eric Bezzam

From the Bay Area (California) but currently based in Lausanne. Passionate about signal processing, audio/music, and teaching.

Twitter   G. Scholar LinkedIn GitHub e-Mail

Projects

Below are some projects that I have worked on during my studies, at internships, and over weekends at hackathons. Links are provided wherever available!

Research

Internships

  • DSP Concepts (Masters internship, 2017)
    During a six-month internship at DSP Concepts, I investigated various beamforming strategies and developed a Beamformer Design Tool. With the tool, fixed beamforming weights in the frequency domain could be designed given a certain set of parameters such as the microphone array geometry, the microphone directivities, a desired source direction, a desired minimum beamwidth, and the expected signal and diffuse noise levels.


    Different beamformers could be compared and evaluated interactively over a variety of criteria such as SNR gain, polar patterns, beamwidth, and uncorrelated noise gain. Finally, the tool was linked with DSP Concept’s proprietary tool - AudioWeaver - in order to conveniently export the designed weights and/or design the beamformer(s) within AudioWeaver. A white paper which describes some of the beamforming and DOA strategies can be found here and another on voice user interfaces here.

  • Fraunhofer IDMT (Bachelor internship and thesis, 2014 & 2015)
    As part of a three-month internship during my Bachelors, I worked at Fraunhofer IDMT in Ilmenau, Germany. There, I investigated and prototyped algorithms in Octave for GSM codec identification and (for a couple codecs) tampering detection. For my thesis, I ported the implementation to C++ so that it could be integrated with IDMT’s other codec identifiers. Finally, I used IDMT’s annotation and testing framework to evaluate the performance of the developed algorithms.

Hackathons