Upcoming Events

  • Application of Acoustics for Underwater ROVs

    Date: 
    Wed, 04/29/2015 - 5:15pm - 7:00pm
    Location: 
    CCRMA Classroom
    Event Type: 
    Colloquium

    Signaling and navigating in the underwater world presents challenges for traditional approaches such as radio waves and light. Both are readily absorbed in water. Light also tends to scatter and reflect over short distances. Sound waves are much more adaptable to use in this world. While they also present challenges – especially absorption and reflection – they can be used effectively over much greater distances in the order of kilometers.

     

    FREE
    Open to the Public
  • Acoustic Source Localization in Wireless Sensor Networks: Model and Numerical Algorithm

    Date: 
    Thu, 04/30/2015 - 5:15pm - 7:00pm
    Location: 
    CCRMA Classroom [Knoll 217]
    Event Type: 
    DSP Seminar

    Acoustic Source Localization in Wireless Sensor Networks: Model and Numerical Algorithm

    Abstract: Jianhua Yuan will present a series of techniques, based upon the energy based acoustic features, to locate a sound source given measurements of the sound field. For wireless ad hoc sensor network applications, energy based acoustic features is an appropriate choice since the acoustic power emitted by targets, such as moving vehicles usually varies slowly with respect to time. In this approach, mathematical models and new numerical methods may be used to yield higher accuracy in terms of source location estimates compared to the earlier method.
     

    FREE
    Open to the Public
  • Naomi Harte - ViSQOL, An objective measure for speech quality

    Date: 
    Fri, 05/01/2015 - 11:30am - 1:00pm
    Location: 
    CCRMA Seminar Room (Top Floor of the Knoll)
    Event Type: 
    Hearing Seminar
    This talk gives an overview of ViSQOL – the Virtual Speech Quality Objective Listener. It is a signal-based, full-reference, intrusive metric that models human speech quality perception using a spectro-temporal measure of similarity between a reference and a test speech signal. The metric has been designed to be particularly robust for quality issues associated with Voice over IP (VoIP) transmission. The talk will explore how the original idea for associating visual similarity with spectrogram changes developed. I’ll show results from a full evaluation of the metric against PESQ and POLQA in a range of scenarios, including how it handles VoIP degradations. The research to develop ViSQOL was sponsored by Google Chrome in Mountainview CA.   Bio: Dr.
    FREE
    Open to the Public
  • Don Knuth: Constraint-based composition

    Date: 
    Thu, 05/07/2015 - 5:15pm - 6:15pm
    Location: 
    CCRMA Classroom (Room 217)
    Event Type: 
    Guest Lecture
    Don Knuth will come and discuss/explain the peculiar(?) methods that he is using as he tries to compose a major work for pipe organ.
    Biography
    FREE
    Open to the Public
  • Bruno Ruviaro: Cinema For The Ears

    Date: 
    Fri, 05/08/2015 - 7:30pm - 9:00pm
    Location: 
    Braun Rehearsal Hall
    Event Type: 
    Concert
    A movie without images: what does that look like? Or should we say, how does it sound? In this immersive surround-sound concert, Brazilian composer Bruno Ruviaro becomes the DJ to guide you through a full evening dedicated to your ears. But is it music or cinema? With this unusual, genre-defying combination of dialogue, sound, music, and ambiance, let your imagination boldly go where it has never gone before!

    Bruno will use CCRMA's 25.6 3D system currently set up at Braun Rehearsal Hall in the Braun Music Center to dazzel your mind/ears.

    Directions: music.stanford.edu/venues/campbell/directions-parking



    FREE
    Open to the Public
  • Pat Scandalis - Physically Modeled Musical Instruments on Mobile Devices

    Date: 
    Thu, 05/14/2015 - 5:15pm - 6:30pm
    Location: 
    Classroom
    Event Type: 
    Guest Colloquium
    Handheld mobile computing devices are now ubiquitous. These devices are powerful, connected and equipped with a variety of sensors. Their pervasiveness has created an opportunity to realize parametrically controlled, physically modeled, virtual musical instruments. moForte inc was founded to develop a line of sonic and musical applications for handheld devices. We developed the "moForte Guitar Stack" which models the guitar family of instruments. This stack has been used to used to develop applications for mobile devices.

    We give an overview of the history of physical modeling with many sound examples, and then brief overview of the current state of modeling on mobile devices using a few apps based on the moForte Guitar Stack.
    FREE
    Open to the Public
  • Alex Brandmeyer on High-frequency Neural oscillations for Auditory Perception

    Date: 
    Fri, 05/22/2015 - 11:30am - 1:00pm
    Location: 
    CCRMA Seminar Room (Top Floor of the Knoll)
    Event Type: 
    Hearing Seminar
    Our transparent everyday experience of sound belies the complex perceptual processes which transform acoustic energy in the environment into rich representations of sound-emitting objects. Since the publication of Bregman’s seminal work on ‘Auditory Scene Analysis’, much progress has been made in understanding the neural mechanisms that support the formation of auditory streams and object representations. This talk will focus on the functional role of neural oscillations in audition, and the interplay between top-down (i.e. attentional and executive processes) and bottom-up (sensory) processes during the formation of perceptual representations.
    FREE
    Open to the Public
  • François-Xavier Féron - Retracing the impact of musical acoustics on Gérard Grisey’s creative process in the 1970s: from spectral models to spectrogram transcriptions

    Date: 
    Wed, 05/27/2015 - 5:15pm - 6:30pm
    Location: 
    Classroom
    Event Type: 
    Guest Colloquium

    From its emergence in France at the beginning of the 1970s, spectral music has represented one of the main musical streams. Composed by Gérard Grisey over a decade, from 1974 to 1985, the six-piece cycle Les espaces acoustiques illustrates a new approach towards composition, one that deals with acoustic properties and is constantly preoccupied with the modalities of auditory perception. This cycle is based on a harmonic spectrum with fundamental frequency 41,2 Hz (E1). Grisey also collaborated with the acoustician Michèle Castellengo, with whom he analysed instrumental sounds spectrograms in order to compose "synthetic spectra" and "spectral polyphony".

    FREE
    Open to the Public
  • Wet Ink

    Date: 
    Thu, 05/28/2015 - 7:00pm - 9:00pm
    Location: 
    CCRMA STAGE
    Event Type: 
    Concert

    FREE
    Open to the Public
  • Effects of cognitive load on perception

    Date: 
    Fri, 05/29/2015 - 11:00am - 12:30pm
    Location: 
    CCRMA Seminar Room
    Event Type: 
    Hearing Seminar
    How is it that we recognize audio, in impoverished environments?  How does our cognitive state, and the load our brains are suffering under, effect how we perceive and understand audio? Speech gives us a convenient model to talk about syntax, but the same considerations probably apply to music.  While this talk describes a speech paradigm, I believe it applies to all forms of auditory perception. 

       Who: Sven Mattys (University of York, UK)
       What: Effects of cognitive load on perception
       When: May 29, 2015 at 11AM
       Where: CCRMA Seminar Room
       Why: Because perception depends on cognition
    FREE
    Open to the Public
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