This is a recording of three different musical instruments playing the same pitch at the same amplitude and for the same duration. The recording can be used to discuss timbre and spectrum.

Excellent simulation of wave interference from the PhET project based out of the University of Colorado.

A simulation from the PhET project by the University of Colorado of waves on a string. Includes configurable boundary conditions. Also can be used as an introduction to the concept of resonance.

This is the second experiment in an lab manual that was used at Northern Illinois University. The lab manual was written by Thomas Rossing. This experiment is a combination of a Hooke's law laboratory and a simple harmonic motion of a spring-mass system laboratory.

The National Center for Environmental Health (NCEH) has a comic book for introducing how hearing works to students as well as preventing noise induced hearing loss. This resource is free to use.

These are some wave-related javascript simulations that run well in modern web browsers.

amroc calculates the modes of rooms on the fly and has a built in function generator for playing those modes. amray is a ray tracing program that allows you to do ray tracing and impulse responses on the fly in real time for a room you draw.

A wave pulse on a long spring hits a free-end boundary, interfering with itself to knock over a single cup but missing others. Recorded by students in Wake Forest University's Physics of Music class (2016)

This is an entry in the assessment library from the National Institute for Learning Outcomes Assessment. The resources include a sample syllabus from a class, a rubric for assessing the project, and the project description. Credit for this resource: Running, D., & Kern, J. (2016). Design and build a musical instrument. Bridgewater State University.

An exercise for measuring reverberation times at home using free software written by the author.

The use of the authors free iOS app, "Polar Pattern Plotter", enables the measurement of sound directivity for microphones and one or more speakers. Features on the cover of The Physics Teacher in February 2018

An interactive JavaScript page that allows students to vary physical parameters to obtain graphs & numerical values for other constants of the motion. Could be used as "self-check homework", whereby students try to calculate constants by hand & use the app to check.

Using two smartphones with the free PhyPhox smartphone app and a tape measure, you can use the "acoustic stopwatch" feature to get the travel time between the two phones. Video instructions available.

Simulator URL: http://ophysics.com/w8.html This simulator is close enough to the “real” physical apparatus we use in my lab for measuring standing waves in strings (and many other physics educators use a very similar setup), that during COVID I allowed students to use the simulator instead of the physical apparatus. The finite step size of the values obtained using the sliders is a feature rather than a bug, as it prevents students from getting “perfect” results while still being very close to the “ideal” values.

An e-learning platform that offers an interactive and playful environment for teaching and learning the principles of acoustics and vibration. The platSimulations with COMSOL in

This tool allows you to train your own deep learning models with your own raw speech data (fiwGAN or a ciwGAN) using our GPUs in a high performance computing space.

Base acoustiques / architecture / exigences de normes / acoustique de chantier / acoustique intérieur /

This is a collection of graphics that depict different scenarios where the Doppler effect may be observed. Each image has a sound source (truck horn) and an observer (a person on a bicycle). Students should examine the images and write down the appropriate equation for each scenario. The images could be used in an electronic document or could be printed out individually to make a card sort activity.

This is a set of activities, in the form of worksheets, that are designed to build and reinforce student skills and conceptual understanding of topics related to acoustics (waves and sound) at the advanced high school or introductory college level. Many of the applications are specifically related to musical acoustics. These activities are intended to be done by small groups of students in a collaborative learning setting, either in-person or online. Many of the activities make use of free online resources, such as PhET simulations, the Desmos graphing calculator, and Raven sound analysis software.

It is a real time online spectrogram of the microphone data. It also allows the user to select a musical scale and play it like a harp, add harmonics, and filter them.

It allows visualizing sound signals from the microphone across time scales. It also allows to record them and transform them through basic operations such as changing the speed or reversing.

It allows to easily generate and visualize sound signals. The user can easily create several pure tones and see the individual waveforms and the additive waveform. It also allows to create complex tones. Best used with a touchscreen.