Essentially, all models are wrong, but some are useful - George E.P. Box
The image method, developed by Allen and Berkley in 1979, is probably one of the most commonly used methods in the acoustic signal processing community to create synthetic Room Impulse Responses. A mex-function, which can be used in Matlab, has been created to generate multi-channel Room Impulse Responses using the image method. This function enables the user to control the reflection order, room dimension and microphone directivity.
A method is proposed for simulating the sound pressure signals on a spherical microphone array in a reverberant enclosure. The method employs spherical harmonic decomposition (SHD) and takes into account scattering from a solid sphere. An analysis shows that the error in the decomposition can be made arbitrarily small given a sufficient number of spherical harmonics.
A universal 'cross-platform' DSP Lab based upon an ASIO implementation of PortAudio. This DSP Lab makes it possible to rapidly evaluate algorithms in real-time.
The Teletron-813 is a 2-meter transceiver used by a bus company in Holland. The Teletron 813 was offered for no more than 20 euros by the Jan Corver museum in Budel, The Netherlands. With some modifications this receiver and transmitter could be transformed into a perfect 2 meter, 10 Watt, transceiver. During my time at the Hogeschool Limburg I made all the modifications and made some very nice radio connections. The receiver, transmitter, and control interface (FCM-1) are finished, now everything has to be put into a nice box...
A never ending story...:-)
Doggie-Soft Inc. consisted of two persons, Rob Aerts and Emanuël Habets (that's me). We developed a couple of tools and games for a packet radio program called F6FBB. Some of these applications are widely used all over the world. Our applications are still available for downloading although no support can and will be provided. If anything goes wrong don't blame us, we do no take any responsibility !!!
From 1992 till july 2000 my dad and I worked on a packet radio Bulletin Board System called Gotham City (GC1BBS) located in Maastricht, The Netherlands. Because the number of packet users was decreasing a lot me decided to close GC1BBS on the first of July 2000. During this period we build and improved different types of packet radio modems using FSK modulation techniques working at 1200 and 9600 baud.
A-BLASS-TI stands for An Adaptive BLind Audio Source Separation algorithm using a Texas Instruments DSP. The team consisted of three students (ing. J. Peters, ing. P.A.M. Lokkart and ing. E.A.P.Habets), one Ph.D. student (J. v.d. Laar) and one advising professor (Dr. Ir. P.C.W. Sommen). We implemented a blind source separation algorithm developed at the University of Eindhoven by B. Yin and P.C.W. Sommen in real-time together with a control interface (using the TI RTDX protocol). The algorithm was implemented on a EVM board developed by Texas Instruments which was equipped with a TMS320C6701 DSP. The results were submitted to the TI DSP contest in 2001. The results were also published at the ProRISC 2001 conference in Veldhoven, The Netherlands. The final report of this project with detailed information of the algorithm can be found here.
Debug facilities for non-DSP developer environments like the Borland C++ Builder and Microsoft Visual Studio are usually not very suitable for debugging signal processing applications. The DSP Debugger is an add-in for Visual Studio whish allows you to plot and export arrays of numbers.