7 terms
Amplitude in acoustics is the size of a sound wave's variation from its resting value, which listeners perceive mainly as loudness.
The decibel is a logarithmic unit that expresses the ratio of two power or amplitude values, used in acoustics and audio to measure level and gain.
An echo in acoustics is a sound reflection that arrives late and strong enough to be heard as a distinct repetition rather than blending into the…
Frequency in acoustics is the number of pressure cycles a sound wave completes per second, measured in hertz, and it largely determines perceived pitch.
Reverberation in acoustics is the dense, decaying sound that persists in a space after the source stops, built from many overlapping reflections.
Sound pressure level in acoustics expresses the effective pressure of a sound in decibels relative to 20 micropascals, the threshold of hearing.
Wavelength in acoustics is the distance a sound wave travels during one cycle, equal to the speed of sound divided by frequency, from meters to millimeters.