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Science > Acoustics 
probability
Science; Acoustics
A number between 0 and 1 which represents how likely an event is to occur. Events with probability equal to 0 never occur. Events with probability equal to 1 always occur.
peak detector
Science; Acoustics
A peak detector responds in less than 100µs (microseconds), according to the sound level meter standards. A typical response time is 40µs.
pseudo-random noise
Science; Acoustics
A periodic signal where one period is a segment of a random signal. The period is determined by the generator span and the number of generator lines.
spectral leakage
Science; Acoustics
A phenomenon whereby the measured spectral energy appears to leak from one frequency into other frequencies. Spectral leakage occurs when a sampled waveform does not contain an ...
modulation
Science; Acoustics
A process by which a spectral component is modified by another component and sidebands result.
unit of pitch (Mel)
Science; Acoustics
A pure tone frontally presented, having a frequency of 1,000 Hz and a sound pressure level of 40 dB, causes a pitch of 1,000 mels.
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