# Acoustics

• Acoustic Impedance - This formula calculates the acoustic impedance of a medium based on its density and the velocity of sound in the medium.
• Acoustic Wave Equation - The acoustic wave equation represents the relationship between speed of sound, time, and distance traveled by a sound wave. Use this calculator to determine the velocity of a sound wave.
• Acoustics - Intensity Level (Decibels) Formula - The intensity level (IL) or sound pressure level (SPL) in decibels (dB) is a logarithmic measure of the sound intensity relative to a reference intensity. This calculator helps calculate the intensity level.
• Beat Frequency - The beat frequency is the absolute difference in frequency between two sound waves. This calculator helps find the beat frequency.
• Frequency of a Sound Wave - The frequency of a sound wave is calculated by dividing the velocity of sound by its wavelength. This calculator helps find the frequency of a sound wave.
• Interaural Time Difference (ITD) for Binaural Hearing - The Interaural Time Difference (ITD) is a psychoacoustic effect that represents the time it takes for a sound to travel from one ear to the other. This formula calculates the ITD for binaural hearing.
• Masking Threshold Calculation - The masking threshold calculation is used in psychoacoustics and audio engineering to understand human perception of sound and design efficient audio algorithms.
• Particle Velocity in Sound Waves - The particle velocity in sound waves is calculated by multiplying the frequency and wavelength of the sound wave. This formula helps find the particle velocity in sound waves.
• Acoustics - Reverberation Time (Sabine Formula) - The Sabine Formula calculates the reverberation time within a space based on its volume and total absorption, providing valuable insights for acoustic engineering and architectural design.
• Sound Transmission Class (STC) Rating - The Sound Transmission Class (STC) rating assesses the ability of materials or assemblies to reduce the transmission of airborne sound. This formula helps in the assessment and measurement of sound insulation performance.
• Sound Transmission Loss (TL) - The sound transmission loss (TL) is a measure of the reduction of sound energy passing through a barrier. This calculator helps find the sound transmission loss in decibels.
• Speed of Sound in Air - The speed of sound in the air can be calculated using the temperature with this formula. This calculator helps calculate the speed of sound in air.