Sound animations and java applets

Physics animations and java applets:
Electricity	Miscellaneous	Optics: Lenses
General overview	Modern Physics	Sound
Mechanics	Optics	Thermal Physics
Mechanics: energy and motion	Optics: colors	Waves

Horizontaal

Sound

Acoustics and vibration animations animations which visualize certain concepts concerning acoustics and vibration

Air column resonance calculator

Akustische Täuschungen in German

Animations for acoustics education

Audio Beat Frequencies Demonstrating Audio Beat Frequencies

Baffled piston approximation of the sound field radiated by a loudspeaker

Beats caused by the interference between two waves of nearly equal frequency

Beats Beats (periodic rise and fall in intensity) are produced when two waves of nearly equal frequency are added. The beat frequency is the difference of the two frequencies, while the resultant waveform itself varies at the mean of the two frequencies

Beats Primary Beats and Combination Tones, FFT, waveform, frequency difference, frequency discrimination, combination tones

Boventonen in Dutch

Doppler effekt

Doppler effekt Illustrating the wave fronts of a wave for a moving source

Doppler effekt Doppler Effect and Shock Waves

Doppler effekt Doppler effekt explained

Doppler effect The Doppler Effect and Sonic Booms

Doppler effect

Doppler effect This simulation shows waves being produced by a moving source. The crests of the each new wave shows up as an expanding circle around the source, Educypedia

Doppler effect an emergency ambulance with switched on siren passes a person who is standing at the street

Doppler effect observer

Doppler effect source adjust the slider to change the speed of the police car

Dopplereffect en schokgolf bij een bewegende puntbron in Dutch

Doppler effect and sonic booms the sudden change in pitch of a horn as a car passes by (moving source) or in the pitch of a boom boom system in a parked car as you drive by in your car (moving receiver) was first explained in 1842 by Christian Doppler

Doppler effect en Français

Doppler effect, sillage en Français

Doppler Überschall-jet

Equal loudness tester this site allows you to measure equal loudness curves--the frequency response of your own ears. The flash script allows you to play sound files with a range of frequencies and sound levels with the click of a mouse

Fourier

Fourier synthese Fourier synthese explained

Fourier synthese 1 in Dutch

Fourier synthese 2 in Dutch

Fourier synthese 3

Frequency Spectrum for Sound in tubes (open and closed ends)

Group velocity and phase velocity

Harmonics applet The Harmonics Applet allows you to play with harmonics to produce instrument sounds similar to the sounds real instruments make. This applet takes the place of an electric synthesizer

Interaktives akustiklabor hier können sie mit hilfe eines tongenerators testen, wie sich töne auf verschiedene klangkörper auswirken, in German

Interactive sound waves investigate how sound waves travel through the air

Interference of two Circular or Spherical Waves This Java applet shows the interference of two circular respectively spherical waves (e.g. of water or sound waves). The waves spread out from two sources oscillating with the same phase

Interferences pour des vagues circulaires en Français

Listen to Fourier series

Location of a supersonic airplane

Plaatsbepaling van een supersonisch vliegtuig in Dutch

Plane and spherical waves individual particles move back and forth, but the waves travel forward

Reflection of waves from boundaries

Refraction of sound waves when a wave encounters different medium where the wave speed is different, the wave will change directions

Sound fields radiated by simple sources pressure sound fields produced by monopole, dipole, and quadrupole sources

Sound field radiated by a tuning fork

Sound generator

Sound 'pulses' tone beats, shockwave

Sound radiation from cylindrical radiators particle motion and sound fields produced by vibrational modes of a cylinder

Sound Wave What is a sound wave? How can a sound wave be measured? Frequently sound is described using terms such as pitch, tone, frequency, intensity or loudness

Sound Wave pitch, tone, frequency, intensity, loudness

Sound Waves

Sound Waves a tip

Speed of sound simulates the sound wave propagation from a moving source or vehicle, super sonic flow

Schwebungen- oder im Reich der Klavierstimmer in German

Shock waves and expansions

Standing longitudinal waves demonstrates the harmonics of the air in a tube as an example of standing longitudinal waves. It illustrates the movement of the molecules in the air during such an oscillation

Standing waves an animation showing the standing wave patterns that are produced on a medium such as a string on a musical instrument. This type of medium would be said to be fixed at both ends, that is, held motionless at both ends

Synthesizer

Text-to-speech interface

Tube with both ends closed (or string with both ends fixed in place)

Tube with both ends open (or string with both ends free)

Tube with one end open (or string with one end fixed in place)

Vibrational modes of an acoustic guitar

Vibrational modes of an electric guitar study the vibration of an electric guitar in order to determine its natural frequencies and mode shapes

Vibration of the bowstring swf file

Vibration of closed pipe It is a transverse wave display of the fundamental vibration, three time vibration, and five time vibration of the closed pipe as the compressional wave, swf file

Vibration of open tube It is a transverse wave display of the fundamental vibration, the twice vibration, and three time vibration of an open tube as the compressional wave, swf file

Vitesse du son dans les gaz en Français

Wave applet change the shape of a wave and listen to its sound

Waves and energy transport

Zwevingen in Dutch

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