3,325 research outputs found
fofb~ and fog~ objects for Max/MSP software and accompanying demonstration/tutorial materials
No full textDetails:
The software is co-authored by Professor Clarke (principal researcher, 75% contribution) with Xavier Rodet (25%, IRCAM,
Paris). Together, the source code for the two objects (written in the C programming language) comprises over 2,500 lines of
code. The development of these objects and the underlying research are described in more detail in the fully refereed
conference paper in the portfolio. The objects are distributed by IRCAM internationally as part of the IRCAM Forum.
Context:
These algorithms are developed from Clarke’s own earlier FOF and FOG unit-generators for MIT’s Csound software package
and were inspired by IRCAM’s CHANT software developed by Xavier Rodet et al. The objects were developed to work in the
different environment of Max/MSP, in particular to take advantage of its orientation towards real-time work. This involved
researching methods for optimising code for real-time use and for adapting control parameters to facilitate real-time operation
and their creative use. Although the underlying algorithms remain in many respects unchanged, their implementation in this new
environment involved significant research and recoding. The fog~ object was also significantly extended to incorporate the
potential for use with data derived from Pitch Synchronous Overlap and Add (PSOLA) analyses of the sound being processed.
This approach provides ways of time stretching and pitch shifting sounds, substantially reducing the side effects that normally
arise with granular based approaches. The design permits other data from the analysis to be used to control the
voiced/unvoiced components of the sound, as well as vibrato and transients
The multiresolution Fourier transform and its application to polyphonic audio analysis
No full textMany people listen to, or at least hear, some form of music almost every day of their lives.
However, only some of the processes involved in creating the sensations and emotions evoked by
the music are understood in any detail. The problem of unravelling these processes has been much
less thoroughly investigated than the comparable topics of speech and image recognition; this has
almost certainly been caused by the existence of a greater number of applications awaiting this
knowledge. Nevertheless, the area of music perception has attracted some attention over the last
few decades and there is an increasing interest in the subject largely arising from the availability of
suitably powerful technology. It is becoming feasible to use such technology to construct artificial
hearing devices which attempt to reproduce the functionality of the human auditory system. The
construction of such devices is both a powerful method of verifying operational theories of the
human auditory system and may ultimately provide a means of analysing music in more detail
than man. In addition to the analytical benefits, techniques developed in this manner are readily
applicable to the creative aspects of music, such as the composition of new music and musical
sounds
A saga de um clã Xavier
No full textThe book brings together historical memories of the Xavier family, of which the author is a member, and includes everything from the heroic episode between members of the Xavier family and Lampião's gang, to a Xavier family tree and tributes to the members of this family, as well as photographic records of known members. The author rescues and preserves important memories of the family, reconstructing facts that, if told orally, could gradually be erased. The story told by Maria do Socorro Cardoso Xavier is also a way of preserving the memory of Ipueira, reporting on the social life and historical setting of the place, using family narrative.O livro reúne registros de memórias históricas da família Xavier, da qual a autora é membro,
e traz desde o episódio heróico entre membros da família Xavier e o bando de Lampião, à
uma árvore genealógica dos Xavier e homenagens aos membros dessa famílias, além de
registros fotográficos dos membros conhecidos. A autora resgata e preserva memórias
importantes da família, reconstituindo fatos que, contados oralmente, poderiam se apagar aos
poucos. A história narrada por Maria do Socorro Cardoso Xavier também é uma forma de
preservar a memória de Ipueira, relatando sobre a vida social e cenário histórico do lugar,
utilizando da narrativa familiar
One and Two Mass Model Oscillations for Voice and Instruments
No full text: Two movements seem possible for the lips of the trumpet player, upward and outward striking. A basic model, using one or the other movement, is proposed so that its behavior can more easily be understood and controlled. The two movements are compared. The model appears as a dynamic system of two loops coupled by a nonlinear function, one loop describes the dynamics of the single mass and the other represents the acoustic wave in the bore. Being much simpler, this model is simulated in real time on a workstation, allowing for easy experimentation of different designs and parameter values. I. Introduction Physical models consisting of an instantaneous nonlinearity and a linear feedback loop are relatively easy to understand and control [Rodet 93a]. But in the case of the trumpet or of the voice, the assumption of a massless reed, hence of an instantaneous nonlinearity, cannot be maintained. The movement of the lips of the trumpet player is discussed for instance in [Yoshikawa 95]. It s..
Physical Constraints for the Control of a Physical Model of a Trumpet: Wim D'haes, Dirk van Dyck and Xavier Rodet
No full textcote interne IRCAM: Dhaes02cNone / NoneNational audiencePhysical Constraints for the Control of a Physical Model of a Trumpe
Variations on the Author
No full text“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
The Diphone program: New features, new synthesis methods and experience of musical use
No full textGeneralized Diphone Control is a powerful means of building a musical phrase from dictionaries of analysed sound units by building sequences of units and concatenating and articulating them. We present new developments and features of the program Diphone 2.0, additive analysis ported on Macintosh, control of the Chant synthesis model and a Chant synthesis engine. We present also the experience that has been obtained about its musical usage after a year of work with musicians and composers. 1. Introduction Generalised diphone control and synthesis has first been proposed for musical applications in [Rodet 88] and an implementation has been described in [Depalle 93]. The first version (v. 0.9) of the Diphone program for Apple Macintosh has been presented at ICMC-96 in Hong-Kong and has been delivered in the IRCAM Forum. Version 2.0, which we present in this paper, will be delivered at the Forum in October 1997. Generalized Diphone control is a powerful means of building a musical phrase..
Control Parameter Estimation for a Physical Model of a Trumpet Using Pattern Recognition: Wim D'haes, Dirk van Dyck and Xavier Rodet
No full textcote interne IRCAM: Dhaes02dNone / NoneNational audienceControl Parameter Estimation for a Physical Model of a Trumpet Using Pattern Recognitio
Sir William Collins and Xavier Herbert
No full textSir William Collins, publisher and Xavier Herbert, author. Hand written comment about the photograph by Xavier Herbert on verso. [Gift of David Rowbotham
San Xavier District pedestrian access and safety study : final report
No full textabstract: The San Xavier District of the Tohono O’odham Nation is home to approximately 2,000 people. Numerous others come to the District to visit the San Xavier del Bac Mission Church. The San Xavier District Pedestrian Access and Safety Study is being prepared to improve the walking and bicycling environment on the San Xavier District for Community members and visitors alike. The study is being funded by the Arizona Department of Transportation Multimodal Planning Division’s Planning Assistance for Rural Areas program.Includes bibliographical references
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