Page  507 ï~~Giuseppe Di Giugno IRIS STUDIO REPORT IRIS SRL Parco La Seva, 151 03018 PALIANO (FR) ITALY Fax +39 775 533343 - Tel. +39 775 533441 E-mail: Enzo Maggi Fabio Armani 1. Introduction IRIS (Istituto di Ricerca per l'Industria dello Spettacolo) is a research organization founded by the BONTEMPI-FARFISA Group in May 1988, under Prof. DI GIUGNO scientific direction. 2. Objectives The main objective of IRIS was to develop a task force, in the field of digital musical instruments. Today IRIS competence extends in numerous disciplines such as: " Acoustics and psychoacoustics " Digital Signal Processing, and Algorithms " VLSI (Very Large Scale Integrated circuits) Design and Processor architectures " Hardware design and packaging " Micro-programming, Real-Time Software, Musical and Graphical User interface (GUI) Software " Music " Digital programmable musical workstation and sound generation boards to be used in professional musical instrument. 3. Organization IRIS personnel is presently composed by 26 people, 21 of which are researchers organized in four functional groups and 5 employeers for administration. Basic research on DSP, Sounds algorithms, processor architectures etc, takes place in the Research Group. As IC are an important development, IRIS'core is the Design Center whose purpose is to turn the engineer's concepts into silicon Chips. The Design Center process involves design and simulations (functional and logic) of the Chip. At the end of the process, functional chips are to be tested in operational situations. Developing and building evaluation and prototype boards are the Hardware Group's task along with small series production. Software programming at all levels such as: " microcode of dedicated DSP's, " Real Time control software hosted by microcontrollers, " User-friendly graphical interface to configure and debug sound generation boards, is the responsibility of the Software Group. 4. Facilities IRIS is located 50 km south-east of ROME, 2 km from the "Al ROMA-NAPOLI" throughway. The 600 center is located in an ancient (but restored!) agricultural building, in the vicinity of an ornithological parc close to the small city of PALIANO. Computer are IRIS' main tools: " UNIX based local area network composed by: 5 HP/APOLLO color workstations (HP700, DN5500) with Mentor Graphics CAD Software dedicated to the Design Center for VLSI and PCBs development. Software tools include Schematic Editor, Logical Simulation and heuristic Fault Analyzer with Cells library from various silicon foundries. 5 HP/APOLLO b.w. workstations (425, 400 dl) for software development and C and C++ programming languages. " Personal computer network composed by several 486 PCs and MAC INTOSH for applications development. Former ATARIs are in replacement. " Small listening facilities are found around the building, together with two small studios equipped with analog and digital processing and recording facilities. " Various peripherals (laser printers, plotters) and analyzers (Real Time FFT, logic signal analyzers) are available as well as a complete electronic laboratory for prototype ICMC Proceedings 1994 507 Education, Studio Reports

Page  508 ï~~building and testing. 5. Collaboration IRIS' internal industrial activities are mostly devoted to its sponsor, nevertheless the center is also involved in,numerous external research programs such as: " the italian strategic program on "Fast and parallel Computers", (IRIS is the only industrial research organization of the working group). " the European ESPRIT III - OMI (Open Microprocessor System Initiative) program " the JESSI program (Joint European Submicron Silicon Initiative) " the MEPI program (ESPRIT special action for Microelectronics in Italy) " the ECHOSEA on a new high-resolution, high acoustic power echographic system for the sea bottom exploration that was awarded of the EUREKA status and approved by italian government. " IRIS is liason partner in ChipShop project (Esprit Project for the diffusion of Microelectronics in Europe). Musical cooperation is planned with FRANCE's, IRCAM, ITALY's Luciano BERIO, and several italian universities (Padova, Napoli, Pisa, Genova). Collaboration agreement were signed with cultural and scientific centres (Tempo Reale - Firenze, Edipan - Roma, MM&T - Milano, Spazio Musica - Cagliari, Stiftung - Friburg, Musik Akademie - Basel). 6. Main achievements In addition to several chips developed by IRIS for Bontempi-Farfisa Group following main achievements can be reported: 6.1 MARS The Musical Audio Research Station (MARS) is a specialized digital machine for realtime audio processing applications developed by IRIS as an integrated environment in which a graphical user interface, an embedded real-time operating system and two powerful and fully programmable IRIS digital audio processors (X20) are linked together to create a universal sound processing machine. A proprietary development system, the IRIS EDIT2O software package, provides musicians a graphic user-friendly interactive tool for programming and performing, through the connection and the immediate sound feedback of audio "objects" coming from an expandable library to build every kind of patch and DSP algorithms for musical/signal processing such as sampling, analysis and synthesis, filters and sound effects. Several original applications are available already: LPC analysis and synthesis, Vocoder, physical models, graphic FFT... and many others can be developed by C-programmers using APPLI20 toolkit. Some works of Computer Music have been produced (S. Sciarrino, L. Berio, W. Prati). Real-time digital audio multi-algorithm processing, programmable links between MIDI controls and physical algorithm parameters, dynamic allocation for timbres and voices, make the MARS a powerful interactive and integrated environment to be used for audio research, musical production and Computer Music pedagogy, and, once configured, as a musical MIDI instrument that can be played by using sequencers, or programming language such as MAX. MARS is actually interfaced with Atari ST and TI computers via the VME bus, and porting on MAC and PC is actually in progress. 6.2 MEDUSA MEDUSA is a MIDI device that works as a patcher, processor (filter, splitter, transposer,....), and fader box. The system core consists of an ASIC single chip developed using semicustom technology (standard cells). It was designed within the European project OMI/DE-ARM and in its current prototype configuration, it consists of two distinct parts: a rach module and a fader box, which are connected by a dedicated cable, and it was designed focusing on two main aspects: 1. power and flexibility; 2. ease of use; The system includes many features of MIDI patch-bays, master keyboards and processors available on the market, plus few other functions. This feat has been achieved by means of a configurable architecture, careful software, and user friendly devices such as a large LCD, wheels and joystick. Education, Studio Reports 508 ICMC Proceedings 1994