Frequency Analysis: Pitch
Since nearly all the sounds useful to the auditory system are complex sounds, the ability of the system to separate these sounds into their separate frequency constituents is one of its most important attributes. Immediately, however, we face a dilemma. Any spectrum analyzer that accomplishes fine frequency resolution will be correspondingly slow in following temporal changes in the signal. We sometimes encounter this accidentally in a loudspeaker system. If the speaker has any sort of resonant peak in the range of interest, signals in that part of the frequency range will be smeared in time—we are apt to say it loses clarity. The sharper the peak the worse it muddles the time pattern at that frequency.
KeywordsAuditory System Pure Tone Frequency Discrimination Critical Band Complex Tone
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