Browsing by Author "De La Cuadra Banderas, Patricio"

Now showing 1 - 13 of 13
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    Audiográficos: implementación y evaluación de un programa informático para el aprendizaje de la interpretación y representación matemática de coordenadas a través de la música y el sonido
    (2013) Venegas, Alicia; Tejada, Jesús; Cádiz Cádiz, Rodrigo Fernando; De La Cuadra Banderas, Patricio; Thayer, Tomas; Lecaros, Alberto; Petrovich, Mirko
    In this work, we approach the design, implementation and evaluation of AudioGraphics, a modular computer program intended to provide activities relating mathematics to music and sound. The goal in designing this program was to facilitate mathematic representation learning processes by having pupils draw coordinates on a two-axis graphic representing the variation of sound frequency thru time (pitch patterns). AudioGraphics was designed to pupils aged 9, 10 and 11 in Elementary Chilean Schools. To carry out this work, we followed a thre-stages method: 1) generating significative metaphores relating two-axis graphic representations and sound. 2) Development of a functional prototype with a didactic guide, that passed a usability evaluation process. 3) Assessment of AudioGraphics by teachers and pupils (this last shown here). Pupils’ results of assesment (N=67) at three Chilean prioritary centres show an excelent reception of the computer program. Dimensions of evaluation –math learning, music learning, global and technical- ha ve shown high scores. Furthermore, evaluation shows an excelent positive emotional balance: pupils felt more positive emotions than negative ones in working with the program. This could be an indicator of validation in respect of dimensions aforementioned.
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    Concierto de música contemporánea, Cruces Sonoros
    De La Cuadra Banderas, Patricio
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    Concierto de Música de Cámara
    De La Cuadra Banderas, Patricio
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    Flutist robot, an environment to experiment with flute acoustics
    (European Acoustics Association, EAA, 2023) Hurtado García-Huidobro, Fernando; De La Cuadra Banderas, Patricio; Torres, M. A.; Fabre, B.
    Recent studies on flute-like instruments have raised interest in creating an environment to precisely control and measure the strategies used by flutists while controlling their instruments. A robotic setup is proposed. Capable of independently controlling the three parameters that are crucial to producing a musical sound from the instrument: (1) the length of the air jet, (2) its angle into the flute, (3) the jet’s offset with respect to the labium. It also allows for precise control of the jet speed and the trajectories for every parameter. A custom-designed artificial mouth can move around a fixed flute by a three-axis mechanism operated with stepper motors. The air jet velocity is controlled with a mass flow controller connected to an air compressor. Another robotic mechanism is proposed to emulate the fingerings acting on the keys, creating a versatile testbed to study the musician’s control dynamically. Both, the details of the mechanical design and the future possibilities of the robot will be discussed. We strongly believe that the robot will let us validate many aspects of our knowledge of flute acoustics, understand the details of the instrument design and improve our understanding of the complex relationship between the flutist and its instrument.
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    Kara: A BCI approach to composition
    (National and Kapodistrian University of Athens, 2014) Cádiz Cádiz, Rodrigo Fernando; De La Cuadra Banderas, Patricio
    Kara is a greek word that could be translated as head. In the Kara series of pieces, the musicians wear braincomputer interfaces (BCI) in order to capture their EEG waves while performing. The information from these waves is sent to a computer, where it is processed in order to generate a real-time score, computer generated sounds and a visual display of the data. A closed-loop is formed between the musicians mental activity and the music they generate. As they perform the real-time score generated by their EEG waves, more mental activity is generated, which in turn generates the next portion of the score, and so on. This loop continues for the whole piece, althoughthe score generation algorithms vary along different sections of the musical discourse. This article is presented for the piece+paper modality.
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    Performance control of a &flute physical model using fuzzy logic
    (2007) Cádiz Cádiz, Rodrigo Fernando; De La Cuadra Banderas, Patricio; Fabre, Benoît; Montgermont, Nicolas
    A simple model aimed to emulate the control exerted by a flautist over selected parameters while exciting the flute is proposed. Using a fuzzy logic based control system, a mu-sically meaningful mapping between performance vari-ables and physical model parameters is obtained. The real time implementation in Pd (Pure data) environment shows an adequate matching between the outputs of the fuzzy system and previous experimental data.
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    Point Reyes Modulated Computer Music
    De La Cuadra Banderas, Patricio
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    Recital de Flauta, Violonchelo y canto
    De La Cuadra Banderas, Patricio
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    Recitales de flauta traversa
    De La Cuadra Banderas, Patricio
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    Recitales de flauta traversa
    De La Cuadra Banderas, Patricio
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    Sonification of medical images based on statistical descriptors
    (2015) Cádiz Cádiz, Rodrigo Fernando; De La Cuadra Banderas, Patricio; Montoya Moraga, Aarón; Marín Bley, Verónica; Andía Kohnenkampf, Marcelo Edgardo; Trejos Guerra, Cristián; Irarrázaval Mena, Pablo
    We propose an image sonification approach based on statistical descriptors, with a special emphasis on medical images. These descriptors capture several characteristics of the image data and can be beneficial for a musically interesting sonification of the visual domain. We conducted an experiment where subjects were asked to evaluate the usefulness of an extra layer of sound in tasks of identification of malignant regions in mammograms. Our results show that the addition of a musical domain to the visual data can improve the efficiency and reliability of this task. We believe that this approach could yield interesting and promising results in fields such as the sonification of other kinds of medical images or multidimensional scientific data.
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    Temptur y eQuena
    De La Cuadra Banderas, Patricio