Definite pitch
From Wikipedia, the free encyclopedia
In music and hearing, a sound or note of definite pitch is one of which it is possible or relatively easy to discern the pitch or frequency of the fundamental. Sounds with definite pitch have harmonic frequency spectra or close to harmonic spectra.
A sound or note of indefinite pitch is one of which it is impossible or relatively difficult to discern the pitch or frequency of the fundamental. Sounds with indefinite pitch do not have harmonic spectra or have altered harmonic spectra.
Note that it is still possible for two sounds of indefinite pitch to clearly be higher or lower than one another, for instance, a snare drum invariably sounds higher in pitch than a bass drum because its sound contains higher frequencies. In other words, it is possible and often easy to roughly discern the relative pitches of two sounds of indefinite pitch, but any given sound of indefinite pitch does not neatly correspond to a given definite pitch.
Not to be confused with absolute pitch.
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