International Workshop on Models and Analysis of Vocal Emissions for Biomedical Applications (MAVEBA 1999)
The chromagram is a transformation of a signal's time-frequency properties into a temporally varying precursor of pitch. This transformation is based on perceptual observations concerning the auditory system and has been shown to possess several interesting mathematical properties. We illustrate the use of the chromagram as a fast and robust method for visualizing attributes of a singer's voice, which is relatively invariant to changes in (he vocal tract resonances.
Bibliographic reference. Wakefield, Gregory H. (1999): "Chromagram visualization of the singing voice", In MAVEBA-1999, 24-29.