Seminars

Past talks

Speaker: Arthur P. M. Tofani
Date and time: Thursday, September 13, 2012 - 16:00
Place: Room 252-A, at IME/USP
Abstract:

This work researches visually-impaired person's difficulties when studying music as a university career, where musical information is usually forwarded as ink-printed sheet music and the translation of this material to braille involves specific skills and resource availability. In that sense, the musical production demanded from a blind student is accomplished by using braille notation, for taking notes or producing homework for disciplines like Harmony, Musical Analysis, or even to take tests. Clearly the information produced has to be submitted to a conversion process, and finally it can be reviewed by the professor or other students.

The main focus of this research is the understanding of braille music aspects and the problem of generating automatic ink-printed sheet music transcriptions, providing assistive resource for music students. For attaining this goal, an application was developed in order to receive braille music input and translate it to MusicXML format, which can be read by any of the widely MusicXML-compatible softwares available for reading, editing and printing music. The program is distributed as free software under LGPL license, as opposed to currently available alternatives.

The resulting application was tested by visually-impaired and non-visually impaired users, and reviewed trough the application of a survey. The collected data was analyzed, in search for variations on user experience and checking for software improvement needs, as well as uncovering further relevant matters on this subject.

Speaker: Santiago Dávila Benavides
Date and time: Thursday, August 30, 2012 - 16:00
Place: Room 252-A, at IME/USP
Abstract:

Multiple musical multiagent systems have been developed in the last years proving the increasing interest in composition and musical performance systems that exploit intelligent agents technology. Thereis an special focus on systems that integrate algorithmic composition techniques, articial life and interactivity. We can also observe that most of these existing projects show many exibility and scope limitations, as they normally use symbolic musical notation and they solve a single issue or scenario, as well as they have a technical motivation rather than a musical one. In that context, some musical multiagent systems frameworks as Ensemble and Interactive Swarm Orchestra emerge, trying to help the modeling and development of this kind of musical systems, diversifying the applications' types, as they can be composition problems or musical performances, and allowing the inclusion of other kind of musical content communication. Through these new tools we study the musical agent from an internal perspective, focusing on its reasoning components, processes that dene the behavior of an agent on its system's virtual environment and that are essential to determine and improve its compositional value. The studied frameworks show unique features as they support audio as a possible musical notation format; they exploit sound spatialization and they work with interactivity in their applications, including agent-to-agent or human-to-agent interaction. We consider potential users for these tools, as composers and musicians interested in performances or other musical interactive systems enthusiasts

Speaker: Roberto Piassi Passos Bodo
Date and time: Thursday, August 23, 2012 - 16:00
Place: Room A-252 at IME/USP
Abstract:

In this talk we will analyse the use of mobile devices as musical instruments. The following topics will be presented: the evolution of musical instruments, the advantages of mobile devices compared to some digital electronic instruments, the native support current state of some operating systems (such as Android and iOS) for real-time audio processing, examples of audio applications available in the market and the acceptance/use of mobile phones and tablets in the music industry.

Speaker: Antonio Deusany de Carvalho Junior
Date and time: Monday, July 2, 2012 - 12:00
Place: Room 267-A, at IME/USP
Abstract:

In these talks, the main concepts in the field of audio effects processing will be presented. In this seminar, we will present some technics used for sound source separation from mixtures. From the general principles, we will discuss about binaural source separation, separation of sources from single-channel mixtures, and also about some applications.

Speaker: Marcio Tomiyoshi
Date and time: Monday, June 18, 2012 - 12:00
Place: Room 267-A, at IME/USP
Abstract:

In these talks, the main concepts in the field of audio effects processing will be presented. In this seminar, we will present digital versions of the following virtual analog effects: nonlinear resonator, the Moog ladder filter, tone stack, wah-wah filter, phaser, circuit-based valve emulation, plate and spring reverberation, tape-based echo simulation and telephone line effect.

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