Definitions for "Colouration"
the timbre of a musical sound; "the recording fails to capture the true color of the original music"
Any change in the character of sound (such as an overemphasis on certain tones) that reduces naturalness.
Colouration refers to a property of loudspeakers that detracts from realistic reproduction. Unlike most defects, which involve failure to reproduce something in the audio signal (such as low frequencies), colouration results from the speaker continuing to emit sound when the signal stops. The cause is resonance, or energy storage, in any part of the speaker or its enclosure, including reflections within the enclosed airspace.
Keywords:  healthy, artist, choice, regard, colors
appearance with regard to color; "her healthy coloration"
choice and use of colors (as by an artist)