Hearing Seminars

CCRMA hosts a weekly Hearing seminar. All areas related to perception are discussed, but the group emphasizes topics that will help us understand how the auditory system works. Speakers are drawn from the group and visitors to the Stanford area. Most attendees are graduate students, faculty, or local researchers interested in psychology, music, engineering, neurophysiology, and linguistics. Meetings are usually from 11AM to 12:30 (or so, depending on questions) on Friday mornings in the CCRMA Seminar Room.

The current schedule is announced via a mailing list. To be added to the mailing list, send email to hearing-seminar-request@ccrma.stanford.edu.  If you have any questions, please contact Malcolm Slaney at hearing-seminar-admin@ccrma.stanford.edu.

Recent Hearing Seminars

  • Jieun Oh on Understanding the Affect of Laughter

    Date: 
    Fri, 11/22/2013 - 11:00am - 12:30pm
    Location: 
    CCRMA Seminar Room
    Event Type: 
    Hearing Seminar
    Laughter is a universal human response to emotional stimuli. Though the production mechanism of laughter may seem crude when compared to other modes of vocalization such as speech and singing, the resulting auditory signal is nonetheless expressive. By implementing prototypes for interactive laughter synthesis and conducting crowdsourced experiments using the synthesized laughter stimuli, this project investigates how acoustic features may give rise to emotional meaning. By focusing on the affective dimensions of laughter, this work complements prior works on laughter synthesis that have primarily emphasized the acceptability criteria.
    FREE
    Open to the Public
  • Lloyd Watts on Commercializing Auditory Neuroscience

    Date: 
    Fri, 11/15/2013 - 11:00am - 12:30pm
    Location: 
    Seminar Room
    Event Type: 
    Hearing Seminar
    Audience is one of the biggest commercial successes from the auditory work that we all love (and talk about at the Hearing Seminar). Lloyd has been a regular attendee at the Hearing Seminar, and he parlayed his auditory expertise into a newly public company that sells audio-processing chips for PCs and cellphones.

    Lloyd has a wealth of knowledge and models of the auditory processing system. Real-time visualizations and all. And some of it might actually be part of your smartphone. Come to CCRMA to find out more.

    Lloyd Watts founded Audience in 2000 as a spin-off from Interval Research, with the mission to commercialize Auditory Neuroscience, producing chip products for PCs and cellphones.

    FREE
    Open to the Public
  • Jacek Dmochowski on Measuring Audience Engagement with Neural Signals

    Date: 
    Fri, 10/25/2013 - 11:00am - 12:30pm
    Location: 
    Seminar Room
    Event Type: 
    Hearing Seminar
    Title: "Measuring Audience Engagement with Neural Signals"

    Abstract: In this talk, I will present the results of a series of experiments which measure the brain's response to natural stimuli (i.e., film clips) with electroencephalography (EEG). I present evidence suggesting that the amount of across-subject correlation in the neural responses of the audience corresponds to the level of engagement exerted by the stimulus. I propose some neural mechanisms which explain this result, and discuss the role of attention and emotion in bringing about neural synchrony. I also draw on results from functional magnetic resonance imaging (fMRI) to demonstrate that higher-order visual and auditory processing regions of the brain comprise the first two "dimensions" of viewer engagement.

    FREE
    Open to the Public
  • Jens Ahrens on The Psychoacoustics of Synthetic Sound Fields

    Date: 
    Fri, 10/18/2013 - 11:00am - 12:30pm
    Location: 
    CCRMA Seminar room
    Event Type: 
    Hearing Seminar
    The Psychoacoustics of Synthetic Sound Fields Abstract: Sound fields that are evoked by electro-acoustic systems can differ substantially from sound fields that arise in nature. This is mainly due to the circumstance that with electro-acoustic systems usually two or more transducers radiate coherent signals simultaneously and therefore create sound fields with complicated physical structures. In this talk, we will summarize the current state of research of the psychoacoustic mechanisms that govern the perception of such synthetic sound fields. We will cover traditional Stereophony as well as methods like Wave Field Synthesis that employ large-scale loudspeaker arrays, and a lot in between.
    FREE
    Open to the Public
  • Decoding Imagined Sounds with EEG

    Date: 
    Fri, 10/04/2013 - 11:00am - 12:30pm
    Location: 
    Seminar Room
    Event Type: 
    Hearing Seminar
    I’d like to talk about some EEG experiments we did at the Telluride Neuromorphic Engineering Workshop this last summer. We were interested in seeing whether we could measure and characterize the response to imagined sounds. This is a form of top-down signal, important for how we understand the complicated world around us. I’ll talk about the motivation for our work, the experiment, the preliminary results, and where we go next.

    This is very preliminary work, no final results, so I expect this will evolve into a general discussion of EEG and auditory perception.

    FREE
    Open to the Public
  • Resonance in the Perception of Musical Pulse

    Date: 
    Wed, 08/14/2013 - 2:00pm - 3:30pm
    Location: 
    CCRMA Seminar Room
    Event Type: 
    Hearing Seminar

    Resonance in the Perception of Musical Pulse II: Developments in Childhood

    Leon van Noorden, Institute for Psycho-acoustics and Electronic Music (IPEM) Ghent University

    Keywords: resonance for musical pulse, synchronisation to the beat of music, children, social aspects of tapping together, arousal

    FREE
    Open to the Public
  • Pierre Divenyi on Phonetic Restoration

    Date: 
    Fri, 04/26/2013 - 1:15pm - 2:30pm
    Location: 
    CCRMA Seminar Room
    Event Type: 
    Hearing Seminar

        aaaaaaaaa BUZZ aaaaaaaaaaaaa

     

    If the buzz is loud enough, people will hear a continuous vowel sound. This is known as phonetic restoration.  Al Bregman (author of the tome Auditory Scene Analysis) says that this is an example of old-plus-new. I suspect it is an example of top-down influences.  All examples of the same process that help us understand the auditory world around us.

     

    FREE
    Open to the Public
  • Claudia Freigang:Behavioral and Electrophysiological Evidence for Impaired Central Auditory Space Processing in Older Adults

    Date: 
    Fri, 04/12/2013 - 1:15pm - 2:30pm
    Location: 
    Seminar Room, The Knoll
    Event Type: 
    Hearing Seminar
    Behavioral and Electrophysiological Evidence for Impaired Central Auditory Space Processing in Older Adults Claudia Freigang University of Leipzig Aging is associated with a decline in hearing sensitivity as well as substantial changes in the perception of auditory objects – though both phenomena must not occur jointly. Most prominently, older adults show difficulties in understanding speech in challenging acoustic environments. As a part of speech perception, location of sound sources have to be processed in order to assign auditory objects (i.e. speakers) to distinct spatial positions and also to differentiate multiple sound sources (for instance, multiple speakers and transient background sounds). There is evidence that localization performance is impaired in older adults.
    FREE
    Open to the Public
  • Jason Bishop on the perception and processing of prosody

    Date: 
    Fri, 03/15/2013 - 1:15pm - 2:30pm
    Location: 
    CCRMA Seminar Room
    Event Type: 
    Hearing Seminar
    Prosody conveys information about emotion and the intention of the speaker.  In this way it is much like music---conveying information that is not in the words. We know its there, we know that babies understand it before they understand the words, but we don't really know how it's perceived. And arguably, music is mostly prosody, so this is really relevant to all you music types too!!!
    FREE
    Open to the Public
  • Laurel Trainor @ CCRMA Hearing Seminar - Auditory Development in Infants: From Perceiving Music to Social Behavior

    Date: 
    Fri, 03/08/2013 - 1:15pm - 2:15pm
    Location: 
    Knoll 3F seminar room
    Event Type: 
    Hearing Seminar
    I will present behavioural and EEG studies showing that infants and young children acquire sensitivity to the pitch and rhythmic structures of the music in their environment without formal training, just as they learn the language in their environment.  I will then discuss the effects of musical training on brain and behaviour and show that such effects can be demonstrated in the first year after birth.  Next I will examine rhythm and the human ability to entrain movement to an auditory beat whether with tapping a finger or dancing with full body movement.  I will present data showing that auditory and motor systems interact in the brain and that these interactions are present early in development.  Finally, I will show that when two people
    FREE
    Open to the Public