Musical technology - musical gestures in instrumental timbres
The project established the nucleus inside scope of Analysis/Synthesis. It's about a system for analysis of musical gestures in instrumental timbres, using analysis tools wavelet in multiresolution. The research had as focus the conception of more expressive musical synthesis systems.

The project starts in 1997 with the research and development of multimedia browsers and digital interactive services through digital services nets, having Brazil's NEC as partner.
In 1998 was established a cycle of research and development focused in the family of multimedia standards codification MPEG, working initially with codecs MPEG-1 and MPEG-2 (systems for codification and audiovisual decoding in real time).

Projects dealing with research in computation and musical production between 1998 and 2002 had been housed together to the nucleus, exploring techniques, equipment and so diverse programs of synthesis as CSound, MAX/MSP, publishers and conventional sequencers (MIDI), among others.

Is had been, then, integrated to a heterogeneous computational infrastructure (PCs, MACs, SGIs) and to an audiovisual platform, with graphical plates for graphical/video computation, linked to a Digital Betacam platform and analogical VCRs.

For support to the research and production in audio and music, the nucleus possesses a Mackie table with 24 channels (24-4-2), a DAT Tascam Da-30 mkII, one double tape-deck Tascam 202 mkIII, sound/effects processors (Alesis Midiverb), RCF reference monitors, amplifiers.

ONCOPEDIATRIA.ORG - multimedia enlace
The Media Engineering Nucleus acted in the establishment of one multimedia enlace for the Oncopediatria.org project.

Since 1999 the group has been introducing innovative proposals for the market of "consumer electronics" in the conception of digital unknown architectures for "set top boxes", and the prototipation and implementation of a evolutive family of multimedia access platforms, foreseeing since the reception and exhibition of conventional TV until the integration with digital nets of data and systems of exhibition in high resolution (convergence and digital inclusion).

Since 2002 the group has been dedicating strongly to the development of "set top boxes" guided to the convergence of the television (analogical/digital) with interactive digital services, with the capacity to integrate applicatory audiovisuals, interactive programs and access the nets of data (as the Internet), counting on the support of traditional agencies of promotion to the research and development, as well as the partnership of industries and companies of the Brazilian and international productive sector.

RESEARCH AND DEVELOPMENT OF MULTIMEDIA APPLICATIONS IN DIGITAL NETS SERVICES
The project had as focus the viable solutions for implementation of future information, education and entertainment services in bi-directional digital nets.

The specific objectives included the implantation of a distributed studio based in an experimental net of high speed (SDH in 310Mbps) operated between the LSI-EPUSP and the NDB/CPDIA and the development of interactive multimedia applications. The implemented infrastructure of communications allowed the interconnection of the production studio in the LSI to the complete infrastructure of head-end for Handle TV in the NDB/CPDIA. Two interactive applications had been developed from this project: browser for Audio under Demand (AoD) and browser for Video under Demand (VoD).

In 1999 experiments of digital video transmission MPEG-1/2 and interactive services using a high speed net (broad band in 310Mbps), were realized culminating in a live public demonstration (in the TV Cultura's Vitrine Show) of possible offering and accessible services from advanced "set top boxes", the "home gateways" of the future.

POLIMIDIA - video on demand
POLIMÍDIA is a service of video under demand (VoD) conceived to dispose the digitalized quantity of the video sources from the Polytechnical School.

It was conceived to be played in PCs provided with domestic multimedia equipment, connected to a net of video and data servers, the conventional service plays in Internet browsers.

To know more about the project, click here

RECONFIGURABLE DIGITAL MULTIMEDIA PLATFORMS FAMILY
Conscious about the increasing multimedia equipment obsolescence due to the fast development of new multimedia codification technologies in short cycles of time, since 2000 the Nucleus of Medias Engineering has a strategical orientation turned toward reconfigurable systems (hardware/software co-design).

The research line bases on the proposal of a reconfigurable architecture for the construction of access, processing and exhibition of multimedia platforms, with capacity of automatic reconfiguration and update.

A platforms family, with increasing complexity, is under development for ends of validation and availability of this technology.

In 2001 the first archetype of a reconfigurable multimedia platform was produced, guided for tests of the diverse component modules of a global system. In 2002 the second generation of multimedia platforms was developed, guided to the integration of the basic components for processing and audiovisual exhibition, and allowing advancement in the validation of the reconfigurable architecture proposed. In 2003, the third generation of platforms implements diverse ports of entrance and exit, it connects itself to other microprocessed devices, and foresees exits of audio and video (TV), besides supporting applicative games and other interactive ones.

Specific objectives of the project include the construction of archetypes plates of a digital set-top box, microprocessing, with connectivity capacity to TV nets and interfacing with diverse audiovisual equipment (between TV's, video player, sound devices, computers, telephonic nets and wireless, etc.) and with capacity to support the coder/decoder standards of digital media (as MPEG standards for audio and video).

DEVELOPMENT OF ACCESS PLATFORMS TO THE DIGITAL TV
With industrial partnership, the Project of Development of Access Platforms for Low Cost Interactive TV.

Since 1999 the group has been introducing innovative proposals for the market of "consumer electronics" in the conception of digital unknown architectures for "set top boxes", and the prototipation and implementation of a evolutive family of multimedia access platforms, foreseeing since the reception and exhibition of conventional TV until the integration with digital nets of data and systems of exhibition in high resolution (convergence and digital inclusion).

Since 2002 the group has been dedicating strongly to the development of "set top boxes" guided to the convergence of the television (analogical/digital) with interactive digital services, with the capacity to integrate applicatory audiovisuals, interactive programs and access the nets of data (as the Internet), counting on the support of traditional agencies of promotion to the research and development, as well as the partnership of industries and companies of the Brazilian and international productive sector.

IMERSIVE AUDIO FOR COMPLETE SYSTEMS OF VIRTUAL REALITY
Research and implementation project of a flexible and scalable system for the three-dimensional audio reproduction in the Digital Cave of the EP-USP. Objectives include from the implementation of systems decoders for the traditional surround formats (as 5,1, 7,1, 10,2, DTS, Dolby Surround) to the development and availability of more complex formats for the generation and reproduction of 3D audio, still restricted to the high-allegiance and research environments, where not only the reverberation and enveloping surround are important, but mainly the localization of distributed sound objects in a three-dimensional scene, and the synthesis of the acoustic environment.

To know more on the project click here.
Clique aqui para a versão em Portugues.

MPEG Brazil
The MPEG Brazil Group was established in 2003, with the intention of representating the Brazilian technical scientific community, academy and industry, together to MPEG/ABNT/ISO group, aiming the active participation in the developments and deliberations of the MPEG. Moreover, the group objectives the research, management and development in MPEG-1, MPEG-2, MPEG-4, MPEG-7 and MPEG-21.

To know more on the project click here