Sonic Velocity: The speed at which sound waves are transmitted. The speed of the transmission of sound waves varies with the temperature of the medium and is generally considered to be 344 m/s.
Wavelength: The distance from the starting point to the end point and up and down to the period of a full waveform. The unit of the wavelength is: m (m)
Frequency: The number of times the sound waves vibrate for a period of one second. Frequency units: Hertz (Hz)
Sound pressure: Refers to the fluctuation of atmospheric pressure caused by sound waves. Unit: DB (DB)
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