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Computer Program Detail Page

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Microphone Sound Analyzer JS Model
written by Wolfgang Christian
The Microphone Sound Analyzer JavaScript Model records the sound from a computer or mobile device microphone and displays its amplitude and frequency spectrum.  Users can vary the recording length by selecting the number of data points. The number of points must, however, be a power of 2 in order to utilize the audio processor's Fast Fourier Transform (FFT) to compute the sound's frequency spectrum.  Because the domain of the computed frequency spectrum is usually too large for audio signals between 20 Hz to 20 kHz, users can set the minimum and maximum values on the graph to display only the range of interest.

The Microphone Sound Analyzer is designed for classroom demonstration and student experimentation. It was developed using the Easy JavaScript Simulations (EjS) version 5.3 and is distributed as a ready-to-run html page and requires only a browser with JavaScript support. This model runs on all platforms, including mobile devices, that support the W3C Media Devices API.

https://developer.mozilla.org/en-US/docs/Web/API/MediaDevices
1 source code document is available
Subjects Levels Resource Types
Oscillations & Waves
- Acoustics
= Wave Analysis and Synthesis
- Instruments
= Air Column Instruments
= Tuning Forks
- Lower Undergraduate
- Middle School
- High School
- Upper Undergraduate
- Tool
= Software
Intended Users Formats Ratings
- Learners
- Educators
- text/html
- application/zip
- application/javascript
  • Currently 5.0/5

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Access Rights:
Free access
License:
This material is released under a Creative Commons Attribution-Noncommercial-Share Alike 3.0 license.
Rights Holder:
Wolfgang Christian
Record Cloner:
Metadata instance created October 10, 2019 by Wolfgang Christian
Record Updated:
December 5, 2019 by Wolfgang Christian
ComPADRE is beta testing Citation Styles!

Record Link
AIP Format
W. Christian, Computer Program MICROPHONE SOUND ANALYZER JS MODEL (2019), WWW Document, (https://www.compadre.org/Repository/document/ServeFile.cfm?ID=15172&DocID=5103).
AJP/PRST-PER
W. Christian, Computer Program MICROPHONE SOUND ANALYZER JS MODEL (2019), <https://www.compadre.org/Repository/document/ServeFile.cfm?ID=15172&DocID=5103>.
APA Format
Christian, W. (2019). Microphone Sound Analyzer JS Model [Computer software]. Retrieved December 7, 2019, from https://www.compadre.org/Repository/document/ServeFile.cfm?ID=15172&DocID=5103
Chicago Format
Christian, Wolfgang. "Microphone Sound Analyzer JS Model." https://www.compadre.org/Repository/document/ServeFile.cfm?ID=15172&DocID=5103 (accessed 7 December 2019).
MLA Format
Christian, Wolfgang. Microphone Sound Analyzer JS Model. Computer software. 2019. 7 Dec. 2019 <https://www.compadre.org/Repository/document/ServeFile.cfm?ID=15172&DocID=5103>.
BibTeX Export Format
@misc{ Author = "Wolfgang Christian", Title = {Microphone Sound Analyzer JS Model}, Year = {2019} }
Refer Export Format

%A Wolfgang Christian
%T Microphone Sound Analyzer JS Model
%D 2019
%U https://www.compadre.org/Repository/document/ServeFile.cfm?ID=15172&DocID=5103
%O text/html

EndNote Export Format

%0 Computer Program
%A Christian, Wolfgang
%D 2019
%T Microphone Sound Analyzer JS Model
%U https://www.compadre.org/Repository/document/ServeFile.cfm?ID=15172&DocID=5103


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Microphone Sound Analyzer JS Model:

Is Based On Easy Java Simulations Modeling and Authoring Tool

Use the Easy Java Simulations Modeling and Authoring Tool to edit and to explore the source code for the Microphone Sound Analyzer JS Model.

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