This site is dedicated to acoustics
applications in Telephony and Multimedia speaker systems and audio
construction. Please visit us regularly as applications and
Our domains of expertise are in:
Acoustic design of music players, toys,
telephones, laptop computers and multimedia speakers.
Simulations methods: Electro-acoustic modeling, Analytical Methods,
Finite and Boundary Elements Methods.
Telephony: artificial ears electro-acoustic models. Receivers,
speakers, microphones modeling and testing.
Expertise in Bruel & Kjaer testing suite
and artificial ears, HATS, Larson Davis and Norsonic analyzers.
Telephonometry. Data analysis programs with Scilab (partially
compatible with Matlab).
ITU and TIA Recommendation, 3GPP, VoIP.
White papers, Standard analysis, Presentations.
Microphone Array / Beamforming Technology
Where spatial filtering can efficiently reduce background noise and
enhance the quality of your recordings or phone handset and handsfree
With the use of cell phones multimedia applications and the need for
quality audio this is a major challenge
Analysis of prior art, patent preparation, patent infringement analysis
with electret microphones. Applications for telephony, small directional
microphones for PC, IC
recorders, covert listening....
notebooks, cell phones, telephones.
Navigate the inter-dependance of
different recommendations from TIA, ITU and ETSI for 3GPP and VoIP
Hardware and software
Finite and Boundary