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1. Of a vehicle, an angular displacement about an axis parallel to the lateral axis of the vehicle. </dd>
2. In acoustics, that attribute of auditory sensation in terms of which sounds may be ordered on a scale extending from low to high. </dd>
Pitch depends primarily upon the frequency of the sound stimulus, but it also depends upon the sound pressure and waveform of the stimulus. The pitch of a sound may be described by the frequency or frequency level of that simple tone having a specified sound pressure level which is judged by listeners to produce the same pitch. </dd>


This article is based on NASA's Dictionary of Technical Terms for Aerospace Use