MUS423 Research Seminars

The CCRMA Music 423 Research Seminar brings graduate students and supervising faculty together for planning and discussion of original research. Students and faculty meet either in small groups or individually, as appropriate for the research topics and interests of the participants. Research carried out is typically presented at the weekly CCRMA Colloquium (if it is of general interest to the CCRMA community) or at a Special DSP Seminar scheduled for that purpose.  In either case, announcements appear on the CCRMA Home Page as Upcoming Events.

Recent DSP Seminars

  • Bowed String Simulation Combining Digital Waveguides and Finite-Difference Time-Domain Frameworks

    Date: 
    Tue, 10/30/2012 - 5:30pm - 6:50pm
    Location: 
    CCRMA Classroom [Knoll 217]
    Event Type: 
    DSP Seminar
    In light of the promising results obtained by driving a low-complexity Digital Waveguide (DW) violin model with synthetic bowing gestures, we are currently exploring the possibilities of combining DW and Finite-Difference Time-Domain (FDTD) frameworks to construct highly realistic physical models of string quartet instruments. Departing from state-of-the-art bowed string simulation paradigms, we extend previous approaches by combining a finite-width bow-string interaction model and a dynamic friction model based on simulating heat diffusion along the width of the bow.
    FREE
    Open to the Public
  • Nonlinear Time-Frequency Processing for Spatial Audio Reproduction

    Date: 
    Thu, 10/25/2012 - 5:30pm - 6:50pm
    Location: 
    CCRMA Classroom [Knoll 217]
    Event Type: 
    DSP Seminar
    This talk will consider the motivation and background of using non-linear time-frequency processing for spatial audio reproduction.  Directional Audio Coding (DirAC) will be reviewed in the talk, which analyzes in short time windows the sound spectrum together with direction and diffuseness in frequency bands of human hearing, and uses this information in synthesis. It has applications in capturing, coding and resynthesis of spatial sound, in teleconferencing, in directional filtering, and in virtual auditory environments.
    FREE
    Open to the Public
  • Digital Modeling of Bridge Driving-Point Admittances from Measurements on Instruments of the Violin Family

    Date: 
    Thu, 10/18/2012 - 5:30pm - 6:50pm
    Location: 
    CCRMA Classroom [Knoll 217]
    Event Type: 
    DSP Seminar
    Be it to understand the physical implications of design choices by makers, or to simulate their behaviour by computer, measuring and studying bridge input admittances of violin-family instruments is not a new topic. In the contex of sound synthesis via physical modeling, a string termination at the bridge can be realized by designing a digital filter whose response resembles the admittance measurement. However, obtaining accurate admittance models as efficient, passive digital filters still remains a difficult task.
    FREE
    Open to the Public
  • Computational Analysis of Bowed-String Performance: From Motion Capture to (i) Sound Synthesis and (ii) Quantification of Interdependence in String Quartets

    Date: 
    Tue, 10/16/2012 - 5:30pm - 6:50pm
    Location: 
    CCRMA Classroom [Knoll 217]
    Event Type: 
    DSP Seminar
     Bowed strings are often regarded as among the most expressive musical instruments. The freedom that is available for the musician to continuously modulate input control parameters (e.g., bowing controls) when interpreting a piece constitutes an excellent opportunity to study instrumental performance. In this talk, we will cover some of our past and present work on computational analysis of bowed string performance. The talk will start by describing motion capture techniques used to acquire bowing control parameters from real performances.
    FREE
    Open to the Public
  • CCRMA Colloquium with Florent Berthaut - The immersive virtual musical orchestra

    Date: 
    Wed, 05/16/2012 - 5:15pm - 6:30pm
    Location: 
    CCRMA Classroom
    Event Type: 
    DSP Seminar
    The immersive virtual musical orchestra
    FREE
    Open to the Public
  • Perceptual Sound Field Reconstruction and Coherent Emulation

    Date: 
    Fri, 04/27/2012 - 3:15pm - 5:05pm
    Location: 
    CCRMA Classroom [Knoll 217]
    Event Type: 
    DSP Seminar

    Professor Zoran Cvetkovic, Centre for Telecommunications Research, Department of Informatics, King's College London, zoran.cvetkovic@kcl.ac.uk

    Open to the Public
  • Talk - Sound Source Separation

    Date: 
    Tue, 03/06/2012 - 5:15pm - 6:45pm
    Location: 
    CCRMA Classroom
    Event Type: 
    DSP Seminar
    Rob Bullen is an acoustician who has been working at CCRMA for six months on a “sound source separation” project. The idea is that this would provide a method of field recording that will allow the recorded sound to be used in a musical context, by separating out individual sounds for processing, re-positioning, etc. At present, “Sonic Distillery” is a prototype with 14 tiny microphones and other odd-looking pieces, and some array processing software.
    FREE
    Open to the Public
  • Sound in the External Environment

    Date: 
    Fri, 11/18/2011 - 4:15pm - 5:05pm
    Location: 
    CCRMA Classroom, Knoll 217
    Event Type: 
    DSP Seminar
    For this week's DSP Seminar, Rob Bullen will be talking about outdoor sound propagation.  Rob's talk covers things we understand and things we don't about external sound propagation, and includes some simple simulations as a starting point for modeling.  Rob's talk will be in the Classroom at 4:15 PM today.  Abstract follows.

    Sound in the External Environment
    Rob Bullen
    Open to the Public
  • Recent Research in the Computational Acoustics Modeling Lab (CAML), McGill University

    Date: 
    Thu, 03/10/2011 - 5:15pm - 6:15pm
    Location: 
    CCRMA Classroom
    Event Type: 
    DSP Seminar
    Recent Research in the Computational Acoustics Modeling Lab (CAML), McGill University
    FREE
    Open to the Public
  • Special Seminar on Faust

    Date: 
    Thu, 02/24/2011 - 5:00pm - 7:00pm
    Location: 
    Classroom
    Event Type: 
    DSP Seminar
    You are invited attend a special seminar given by Yann Orlarey from GRAME (http://www.grame.fr/) and Romain Michon, CCRMA Visiting Researcher, on the Faust programming language. 
     
    Abstracts: 
     
    Towards Faust 2
    ------------------------
    FREE
    Open to the Public