Department of Computer Science - Institute of Mathematics and Statistics - University of São Paulo - Brazil
Languages
Seminars
Past talks
Speaker: Roberto Piassi Passos Bodo
Date and time: Wednesday, March 13, 2013 - 16:00
Place: Room B-101 at IME/USP
Abstract:
Date and time: Wednesday, March 13, 2013 - 16:00
Place: Room B-101 at IME/USP
Abstract:
In this talk we will present Roger Dannenberg's paper entitled "An On-Line Algorithm for Real-Time Accompaniment" (ICMC 1984). The author presents a new approach to the real-time musical accompaniment problem in which the computer has the ability to follow a solo musician. Three sub-problems are considered: process the input from the soloist in real-time (using symbolic code), compare this entry with the original score (using a matching algorithm) and generate the accompaniment in accordance with the musician's progress (using a virtual clock). The paper's highlight is the use of a well-known dynamic programming algorithm for the input/original score matching.
Speaker: Antonio Deusany de Carvalho Junior
Date and time: Thursday, December 6, 2012 - 16:00
Place: Sala 268-A do IME/USP
Abstract:
Date and time: Thursday, December 6, 2012 - 16:00
Place: Sala 268-A do IME/USP
Abstract:
The aim of this work is to propose four methods for composer classification in symbolic data based on melodies making use of the Prediction by Partial Matching (PPM) algorithm, and also to propose data modeling inspired on psychophysiological aspects. Rhythmic and melodic elements are combined instead of using only melody or rhythm alone. The models consider the perception of pitch changing and note durations articulations then the models are used to classify melodies. On the evaluation of our approach, we applied the PPM method on a small set of monophonic violin melodies of five composers in order to create models for each composer. The best accuracy achieved was of 86%, which is relevant for a problem domain that by now can be considered classic in MIR.
Speaker: Thilo Koch
Date and time: Thursday, November 29, 2012 - 16:00
Place: Room 268-A, IME/USP
Abstract:
Date and time: Thursday, November 29, 2012 - 16:00
Place: Room 268-A, IME/USP
Abstract:
Wave field synthesis (or WFS) is the attempt to reproduce in a different environment an acoustic scene exactly like the original one. In the past 20 years several wave field synthesis systems have been developed which use holographic techniques. Using multi-channel systems, WFS tries to resynthesize a two-dimensional sound field in a spatial environment based on the idea of superposition/interference of small sound sources represented by a large number of loudspeakers close to each other.
In this talk we will present a WFS project implemented at the Technical University of Berlim, and based on that experience we will discuss aspects of environmental acoustics, mathematics, audio infrastructures and computer programming.
Speaker: Gilmar Dias and André J. Bianchi
Date and time: Thursday, November 22, 2012 - 16:00
Place: Room 268-A at IME/USP
Abstract: Faust is a programming language designed for Digital Signal Processing, based in block algebra. In this seminar, we will present Faust's basic syntax and the FaustWorks development environment. A Faust program can be compiled for using with audio processing tools as Pure Data and Csound, audio architectures as Jack, OSS and ALSA, and plugin standards as LADSPA and LV2. We suggest that the participants bring their computers so they can follow the presentation and examples. Faust and FaustWorks can be downloaded in the following link: http://faust.grame.fr/index.php/downloads
Date and time: Thursday, November 22, 2012 - 16:00
Place: Room 268-A at IME/USP
Abstract: Faust is a programming language designed for Digital Signal Processing, based in block algebra. In this seminar, we will present Faust's basic syntax and the FaustWorks development environment. A Faust program can be compiled for using with audio processing tools as Pure Data and Csound, audio architectures as Jack, OSS and ALSA, and plugin standards as LADSPA and LV2. We suggest that the participants bring their computers so they can follow the presentation and examples. Faust and FaustWorks can be downloaded in the following link: http://faust.grame.fr/index.php/downloads
Speaker: Marcio Tomiyoshi
Date and time: Thursday, October 25, 2012 - 16:00
Place: Sala 268-A do IME/USP
Abstract:
Date and time: Thursday, October 25, 2012 - 16:00
Place: Sala 268-A do IME/USP
Abstract:
In this talk we'll analyze our currently options to make music performances through a computer network focusing on the residential Internet available in Brazil. It will be presented an overview of this computer music sub-area so that we can discuss implementation aspects of softwares like JackTrip, SoundJack and Skype. We will also describe the procedures taken to make automated testing with those applications and the techniques used to analyze the results.
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