In This Section
Reflecting on Reflections - June 2014
Audibility of a CD-Standard A/DA/A Loop Inserted into High-Resolution Audio Playback - September 2007
Quiet Thoughts on a Deafening Problem - May 2014
AES Journal Forum
In Search of a Perceptual Metric for Timbre: Dissimilarity Judgments among Synthetic Sounds with MFCC-Derived Spectral Envelopes
Because the spectral envelope of a sound is a crucial aspect of timbre perception, the authors propose a quantitative model of spectral envelope perception using a set of orthogonal basis functions, analogous to the three primary colors in vision. The goal is find a quantitative mapping between the physical description of the spectral envelope and its perception. This allows for a meaningful and reliable way of controlling timbre in sonification. This paper presents a quantitative metric to describe the multidimensionality of spectral envelope perception, i.e., the perception that is specifically related to the spectral element of timbre. Mel-frequency cepstral coefficients (MFCC) were chosen as a metric for spectral envelope perception because of their linearity, orthogonality, and multidimensionality. Quantitative data from two experiments illustrate the linear relationship between the subjective perception of spectrally-varied synthetic sounds and the MFCC.
No AES members have commented on this paper yet.
Subscribe to this discussion
Start a discussion!
If you are not yet an AES member and have something important to say about this paper then we urge you to join the AES today and make your voice heard. You can join online today by clicking here.