Seminars

Past talks

Speaker: Antonio José Homsi Goulart
Date and time: Wednesday, August 26, 2015 - 12:00
Place: Auditório do CCSL, IME/USP
Abstract: In this talk we will present various techniques for the processing of signals resulted from an AM/FM decomposition of a musical signal. Different methods for the decomposition and possibilities for operation on the AM/FM domain will be discussed. Uma das aplicações que vamos explorar será a síntese de sinais ressonantes a partir de análise-processamento-ressíntese de sinais gerados com o sintetizador TB-303. Além da técnica será também apresentada uma avaliação baseada em métricas psicoacústicas das sonoridades obtidas. Outra aplicação que vamos explorar é a implementação de efeitos de áudio também baseados na decomposição AM/FM. Exemplos de áudio serão utilizados ao longo do seminário para ilustrar as técnicas. One application which will be explored is the synthesis of resonant signals with analysis-smoothing-resynthesis of signals generated with the TB-303 bass synthesizer. Besides the technique, a psychoacoustic assessment of the sounds obtained will be presented. Another application to be discussed is the the use of the technique as a framework for the implementation of audio effects. Audio examples will be played throughout the talk to illustrate the techniques.


(video presentation in portuguese)

Speaker: Antonio Deusany de Carvalho Junior
Date and time: Wednesday, August 19, 2015 - 12:00
Place: Auditório do CCSL, IME/USP
Abstract: In this talk we present the SuperCopair package, which is a new way to integrate cloud computing into a collaborative live coding scenario with minimum efforts in the setup. This package, created in Coffee Script for Atom.io, is developed to interact with SuperCollider and provide opportunities for the crowd of online live coders to collaborate remotely on distributed performances. Additionally, the package provides the advantages of cloud services offered by Pusher. Users can share code and evaluate lines or selected portions of code on computers connected to the same session, either at the same place and/or remotely. The package can be used for remote performances or rehearsal purposes with just an Internet connection to share code and sounds. In addition, users can take advantage of code sharing to teach SuperCollider online or fix bugs in the code.


(video presentation in portuguese)

Speaker: Wilson Kazuo Mizutani
Date and time: Wednesday, August 12, 2015 - 12:00
Place: Auditório do CCSL, IME/USP
Abstract: In games, a common strategy to provide a more engaging player expericence is to allow the game's soundtrack to react, in real-time, to the happenings inside the virtual universe, since that provides a complementary interaction to the user beyond the conventional expression through visual aspects. However, given the non-linearity of this audiovisual media, many challenges of artistic, practical and technological order arise from this dynamic approach. In this work, we look for a middleware solution capable of mitigating such complexities, specially having composers and sound designers in mind as final users.


(video presentation in portuguese)

Speaker: Antonio Deusany de Carvalho Junior
Date and time: Monday, June 29, 2015 - 13:00
Place: Auditório do CCSL, IME/USP
Abstract:

In this talk we will present an application that can send all events from any sensor available on an Android device using OSC and through Unicast or Multicast network communication. Sensors2OSC permits the user to activate and deactivate any sensor at runtime and has forward compatibility with any new sensor that may become available without the need to upgrade the application for that. The sensors rate can be adjusted from the slowest to the fastest, and the user can configure any IP and port to set receivers for OSC messages. The application is described in detail with some discussion about Android device limitations and the advantages of this application in contrast with so many others that are available on the market. The audience is invited to use the application during the demonstrations.


(video presentation in portuguese)

Speaker: Guilherme Feulo do Espírito Santo
Date and time: Monday, June 1, 2015 - 13:00
Place: 144-B
Abstract:

In this seminar we present the paper "A Influência do Conteúdo Espectral na percepção de acordes Consonantes e Dissonantes e seu reflexo na Atividade Cerebral" (The Influence of Spectrum Content in the Perception of Consonant and Dissonant Chords and its reflex on Brain Activity) developed in partnership with Antonio Goulart and Micael Antunes, that tackles the basis for the musical consonance analysis and its relationship with the spectral content of chords present in the tonal system and, based on this, propose an experiment that explores through electroencephalography a relation between the harmonic nature of musical instruments and the brain response to the auditory stimulus.


(video presentation in portuguese)

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