Index of /~echew/papers/AMCMM2006a

      Name                    Last modified       Size  Description


[DIR] Parent Directory        30-Jun-2008 20:52      -  
[   ] clf-amcmm2006_p137.pdf  03-Nov-2006 09:28   1.6M  
[TXT] reference.txt           03-Nov-2006 10:02     1k  

In this directory are the PDF files for the paper titled

"ESP: Roadmaps as Constructed Interpretations and Guides to Expressive Performance"
by Elaine Chew, Jie Liu and Alexandre Francois ({echew, jieliu, afrancoi}@usc.edu)

The results were presented at the 
First Workshop on Audio and Music Computing for Multimedia
held in conjunction with the 14th ACM International Conference on Multimedia
Firday, October 27, 2006, Santa Barbara, California, USA

The paper is published in the
Proceedings of the First Workshop on Audio and Music Computing for Multimedia
Click on reference.txt for the BibTeX reference.

The conference website is at 
http://www.create.ucsb.edu/amcmm06

THE COMPLETE PAPER, text with figures, can be viewed as a PDF document.
Click on clf-amcmm2006_p137.pdf if you wish to view the paper in PDF format.

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"ESP: Roadmaps as Constructed Interpretations and Guides to Expressive Performance"
by Elaine Chew, Jie Liu and Alexandre Francois ({echew, jieliu, afrancoi}@usc.edu)

ABSTRACT: The Expression Synthesis Project (ESP) literalizes the
driving metaphor to allow users to create expressive performances
through a driving interface. In musical performance, controlled
variations in tempo, dynamics, and articulation, lead to musical
gestures that clarify structural ambiguities and create musical
affect. Guided by the road in ESP, the user changes the tempo by
depressing the gas or brake pedals; dynamics are coupled with
acceleration, and articulation is controlled independently. Straight
road segments suggest opportunities to accelerate, while varying
degrees of road bends prompt slowdowns of different levels. The road
serves as a representation of, and guide to, a particular
interpretation of a piece. This paper focuses on the concepts
underlying the design of the road in ESP, providing case studies on
mapping diverse interpretations to roadmaps. We describe the design of
two roadmaps each for Brahms' Hungarian Dances Nos. 2 and 3. We show
that the road has a distinct influence on the way a driver traverses a
path, presenting empirical results of driving/performance outcomes
using the roads designed, and analyzing the tempo time series. General
trends of slowdowns near curvature extremities and accelerations are
observed.  Statistics show that a particular roadmap has the effect of
constraining the performances to a certain style, with specifically
placed gestures, while allowing the driver latitude in expressive
control. Performances from the same paths are shown to be more similar
to each other than those from different paths, having average
correlation coefficients of 0.39 vs. 0.16 for Dance No.2, and 0.61
vs. 0.38 for Dance No.3. Overall, the interpretation maps resulted in
expressively pleasing performances made available for further
examination.

Categories and Subject Descriptors 
H.5.5 [Information Interfaces and Presentation]: Sound and Music
Computing - methodologies and techniques; H.5.2 [Information
Interfaces and Presentation]: User Interfaces - input devices and
strategies.

General Terms
Design, Experimentation, Human Factors, Performance. 

Keywords
Expression synthesis, driving interface, expressive performance,
musical interpretation, motion metaphor.