Title :
Contour representations of sound
Author :
Yoonseob Lim ; Shinn-Cunningham, Barbara ; Gardner, Timothy
Author_Institution :
Dept. Cognitive & Neural Syst., Boston Univ., Boston, MA, USA
Abstract :
We consider how the continuity of form in natural sounds may be used to discover sparse time-frequency representations. To proceed, we describe a method to represent any sound as a collection of contours in the time-frequency plane. By analysing the signal in many time-scales, an over-complete set of shapes is generated for a given sound. From this redundant set of shapes the simplest, most parsimonious mathematical forms may be selected.
Keywords :
audio signal processing; signal representation; time-frequency analysis; contour representations; natural sounds; sparse time-frequency representations; time-frequency plane; Atomic measurements; Humans; Speech; Gestalt principle; kernel optimization; sparse representation; time-frequency analysis;
Conference_Titel :
Applications of Signal Processing to Audio and Acoustics (WASPAA), 2011 IEEE Workshop on
Conference_Location :
New Paltz, NY
Print_ISBN :
978-1-4577-0692-9
Electronic_ISBN :
1931-1168
DOI :
10.1109/ASPAA.2011.6082322
