Sound Waveforms JS Model

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written by Wolfgang Christian

The Sound Waveforms JavaScript Model explores the aural texture of four basic periodic waveforms: sine, triangle, square, and sawtooth. The sine waveform has a single frequency and is the building block of other periodic waves by summing harmonics in a Fourier Series. The richness of the sound is called the timbre and is determined by the amplitude of the harmonics in the Fourier sum.

The One-Dimensional Wave Function Superposition JavaScript Model was developed using the Easy Java Simulations (EJS) version 5. It is distributed as a ready-to-run html page and requires only a browser with JavaScript support.

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download 344kb .zip
Published: February 25, 2016

1 ready-to-run example is available

1 ready-to-edit example is available

Open Sound Waveforms Source Code in Web EJS

1 source code document is available

Subjects	Levels	Resource Types
Mathematical Tools - Series and Functions = Fourier Series Oscillations & Waves - Acoustics = Pitch = The Ear = Wave Analysis and Synthesis - General - Sound Reproduction - Wave Motion = Compound Waves	- Lower Undergraduate - High School - Informal Education - Upper Undergraduate	- Instructional Material = Interactive Simulation

Intended Users	Formats	Ratings
- Learners - Educators	- text/html - application/zip - application/javascript	Currently 0.0/5 Want to rate this material? Login here!

Access Rights:: Free access
License:: This material is released under a Creative Commons Attribution-Noncommercial-Share Alike 3.0 license.
Rights Holder:: Wolfgang Christian
Merlot:: pending
Record Cloner:: Metadata instance created February 27, 2016 by Wolfgang Christian
Record Updated:: September 29, 2023 by Wolfgang Christian
Last Update when Cataloged:: February 25, 2016
Other Collections:: The Open Source Physics

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AAAS Benchmark Alignments (2008 Version)

4. The Physical Setting

4F. Motion

6-8: 4F/M4. Vibrations in materials set up wavelike disturbances that spread away from the source. Sound and earthquake waves are examples. These and other waves move at different speeds in different materials.
6-8: 4F/M7. Wave behavior can be described in terms of how fast the disturbance spreads, and in terms of the distance between successive peaks of the disturbance (the wavelength).
9-12: 4F/H6ab. Waves can superpose on one another, bend around corners, reflect off surfaces, be absorbed by materials they enter, and change direction when entering a new material. All these effects vary with wavelength.

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Record Link

<a href="https://www.compadre.org/portal/items/detail.cfm?ID=13986">Christian, Wolfgang. "Sound Waveforms JS Model." Version 1.0.</a>

AIP Format

W. Christian, Computer Program SOUND WAVEFORMS JS MODEL, Version 1.0 (2016), WWW Document, (https://www.compadre.org/Repository/document/ServeFile.cfm?ID=13986&DocID=4368).

AJP/PRST-PER

W. Christian, Computer Program SOUND WAVEFORMS JS MODEL, Version 1.0 (2016), <https://www.compadre.org/Repository/document/ServeFile.cfm?ID=13986&DocID=4368>.

APA Format

Christian, W. (2016). Sound Waveforms JS Model (Version 1.0) [Computer software]. Retrieved March 17, 2025, from https://www.compadre.org/Repository/document/ServeFile.cfm?ID=13986&DocID=4368

Chicago Format

Christian, Wolfgang. "Sound Waveforms JS Model." Version 1.0. https://www.compadre.org/Repository/document/ServeFile.cfm?ID=13986&DocID=4368 (accessed 17 March 2025).

MLA Format

Christian, Wolfgang. Sound Waveforms JS Model. Vers. 1.0. Computer software. 2016. 17 Mar. 2025 <https://www.compadre.org/Repository/document/ServeFile.cfm?ID=13986&DocID=4368>.

BibTeX Export Format

@misc{ Author = "Wolfgang Christian", Title = {Sound Waveforms JS Model}, Month = {February}, Year = {2016} }

Refer Export Format

%A Wolfgang Christian %T Sound Waveforms JS Model %D February 25, 2016 %U https://www.compadre.org/Repository/document/ServeFile.cfm?ID=13986&DocID=4368 %O 1.0 %O text/html

EndNote Export Format

%0 Computer Program %A Christian, Wolfgang %D February 25, 2016 %T Sound Waveforms JS Model %7 1.0 %8 February 25, 2016 %U https://www.compadre.org/Repository/document/ServeFile.cfm?ID=13986&DocID=4368

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The AIP Style presented is based on information from the AIP Style Manual.

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