Z0 = ρ0 × c Z0 is the specific acoustic impedance of air and c is the speed of sound. In SI units with dry air at 20°C (68°F), the speed of sound c is 343 m/s.

The speed of sound in air c is determined by the air itself and is not dependent upon the amplitude, frequency, or wavelength of the sound.

Sound level SPL, pressure, pascal, and intensity level (SIL) conversion · Speed of sound in air and the significant temperature calculation.

Sound pressure p (RMS) as Sound field quantity: The auditory threshold is used as the reference sound pressure p0 = 20 µPa = 2 × 10−5 Pa.

The atmospheric pressure is not the same as the sound pressure. Sound pressure or acoustic pressure is the local pressure deviation from the ambient

The formulas for voltage and power and the level calculation. To use the calculator, simply enter a value. The calculator works in both directions.

Acoustic calculation of the wavelength of a wave (sound wave) in air when frequency and temperature is known. Enter the given values in the upper gray boxes ...

Table of sound levels (dB scale) and the corresponding units of sound pressure and sound intensity (examples)

The instantaneous particle velocity, v, of a sound wave within the plane wave can be related to the sound pressure, p, through the equation: v = p / (ρ0 × c) in ...

It is produced by the thermal agitation of the charges in an electric conductor and is proportional to the absolute temperature of the conductor.

The effect of temperature and sound pressure: Sound pressure and Sound power – Effect and Cause. Acousticians and sound protectors ("noise fighters") need ...

... of sound pressure to sound intensity sound recording calculations sound units formulas wheel - Eberhard Sengpiel sengpielaudio.

... versus dB sound at different distances microphone calculator distance level drop ratio dampening - Eberhard Sengpiel sengpielaudio.

Frequency period formula angular frequency cycle per second hertz Hz amplitude equation formulary acoustic time wavelength Hz to millisecond ms cycle ...

The inverse distance law 1/r and the sound pressure effect decay no square scale sound field quantity not for sound intensity as sound energy quantity ...

... energy formulas impedance Z units audio engineering sound recording calculations sound units formulas - Eberhard Sengpiel sengpielaudio.

... (herz) calculator ¢ convert hertz semitones ¢ minor third major equation semi tone keyboard - Eberhard Sengpiel sengpielaudio.