Center for Computer Research in Music and Acoustics

Summer Workshops 2015 Announced!

2015 Summer Workshop lineup announced! Check https://ccrma.stanford.edu/workshops for details. Register http://app.certain.com/profile/form/index.cfm?PKformID=0x1979858dec1.

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
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Recent Events

Robert Henke shares his favorite sound design tricks with Ableton Live and Max4Live

Date: 
Sat, 04/04/2015 - 10:00am - 4:00pm
Location: 
Knoll Stage, Stanford University Campus
Event Type: 
Guest Lecture

A software as complex as Ableton Live offers many ways to manipulate sound. Some are obvious and some are hidden. Robert Henke shows some examples of creative work with the software, and provides insight into more complex and iterative processes involved in his work flow. The workshop will also deal with questions of sound quality, the idea of 'good sound' and how to achieve this in a real world situation during a performance. In the second part of the workshop Robert Henke will dive into some of his Max4Live devices and will discuss the reasoning for developing own patches or tools. When does it help the creative process and when does it become a distraction?

FREE
Open to the Public

Robert Henke: Finding a New Audiovisual Language Using Lasers and Sound

Date: 
Wed, 04/01/2015 - 5:15pm - 7:00pm
Location: 
Knoll Stage
Event Type: 
Colloquium
Robert Henke talks about his laser based performance project Lumière II which just premiered at Centre George Pompidou in Paris, and provides insight into the artistic and technical challenges of the project.

Artist Bio:

Robert Henke, born 1969 in Munich, Germany, builds and operates machines that create sounds, shapes and structures.
FREE
Open to the Public

Robert Henke Symposium Spring 2015

Date: 
Tue, 03/31/2015 - 6:00pm - Thu, 04/09/2015 - 9:00pm
Location: 
Knoll Stage
Event Type: 
Guest Lecture

Symposium Title:  A totally subjective knowledge dump about sound, performance, reverb, the beauty of repetition and the never ending battle against technology and a lack of inspiration.

FREE
For CCRMA Users Only

Michael Mandel on Auditory bubbles: Estimating time frequency importance functions

Date: 
Fri, 03/20/2015 - 11:00am - 12:30pm
Location: 
CCRMA Seminar Room
Event Type: 
Hearing Seminar
Listeners can reliably identify speech in noisy conditions, but it is not well understood which specific features of the speech they use to do this.  This talk presents a data-driven framework for identifying these features.  By analyzing listening-test results involving the same speech utterance mixed with many different "bubble" noise instances, the framework is able to compute the importance of each time-frequency point in the utterance to its intelligibility, which we call the time-frequency importance function.  These results can be seen as a quantification of a listener's strategy for understanding a 
FREE
Open to the Public
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Recent News

Press Buzz for Jonathan Berger

What a great collection of articles about Jonathan Berger and his opera première and the Music and the Brain Symposium! Enjoy.

I Care if You Listen April 11, 2013
I Care if You Listen April 25, 2013
I Care if You Listen April 27, 2013
KDFC State of the Arts (SOTA) April 8, 2013

Bleeding-Edge Musical Innovation, Live from CCRMA; Full Report, Monolake + Tarik Barri Live

Create Digital Music featured recent events and people at CCRMA centered on the Modulations event series.  Thanks to CCRMA community member and CDM writer Gina Collecchia for the great writeup.

http://createdigitalmusic.com/2013/05/bleeding-edge-musical-innovation-l...

Music Gaming and Neuroplasticity at CCRMA

Students in Music 257, taught by Stanford consultin professor and Dolby Labs Senior Staff Scientist Poppy Crum, studied musical games with an eye toward increasing neuroplasticity. Take a look at this video.

This is Your Brain on Opera

New York Times article: Jonathan Berger's "Visitations" Premiére at Stanford.
PALO ALTO, Calif. — I attended two performances of Jonathan Berger’s “Visitations” at the Bing Concert Hall at Stanford last week here. On Friday evening I sat in the primary motor cortex. The following night, my seat was located off to the side, in Broca’s area.
“Visitations,” a double bill of one-act operas about auditory hallucinations, mixes digital sounds with live voices and a chamber ensemble.
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