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Sound visualizer in C#

, 15 Aug 2007 GPL3 226K 23.9K 216
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Simple sound sampler with visualization
Screenshot - SoundViewer.jpg

Introduction

This project demonstrates the use of the Fast Fourier Transform and Windows GDI to produce near real-time visualizations of the time and frequency domains of sound.

Background

While looking for information on signal processing for a robotics project, it became apparent that examples written in C# were hard to find. This led me to create some of my own classes, which I have provided here for this demonstration.

Using the Code

Audio input for this demonstration is provided by the Wave classes developed by Ianier Munoz. Wave samples are further processed using the AudioFrame class.

class AudioFrame
{
    private Bitmap _canvasTimeDomain;
    private Bitmap _canvasFrequencyDomain;
    private double[] _waveLeft;
    private double[] _waveRight;
    private double[] _fftLeft;
    private double[] _fftRight;
    private SignalGenerator _signalGenerator;
    private bool _isTest = false;
    public AudioFrame(bool isTest)
    {
        _isTest = isTest;
    }

    /// <span class="code-SummaryComment"><summary>
</span>

License

This article, along with any associated source code and files, is licensed under The GNU General Public License (GPLv3)

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About the Author

Jeff Morton
Systems / Hardware Administrator
United States United States
No Biography provided

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Comments and Discussions

 
GeneralRe: Media file Pin
Ankur Dukare11-Mar-10 22:34
memberAnkur Dukare11-Mar-10 22:34 
GeneralRe: Media file Pin
gerardo_00115-Mar-10 8:15
membergerardo_00115-Mar-10 8:15 
QuestionWhere is the Documentation? Pin
Member 603819619-Mar-09 7:37
memberMember 603819619-Mar-09 7:37 
QuestionaudioFrameSize in waveformat correct ? Pin
radio_gaga8-Mar-09 8:16
memberradio_gaga8-Mar-09 8:16 
AnswerRe: audioFrameSize in waveformat correct ? Pin
Jeff Morton8-Mar-09 9:59
memberJeff Morton8-Mar-09 9:59 
GeneralIt won't work on desktop PC Pin
max_99014-Feb-09 0:15
membermax_99014-Feb-09 0:15 
QuestionInput delays Pin
Joe Wright1-Sep-08 7:12
memberJoe Wright1-Sep-08 7:12 
AnswerRe: Input delays Pin
Jeff Morton1-Sep-08 12:45
memberJeff Morton1-Sep-08 12:45 
GeneralIt works! Pin
Member 470880128-Aug-08 21:08
memberMember 470880128-Aug-08 21:08 
GeneralShutdown addition Pin
firmwaredsp31-Oct-07 22:26
memberfirmwaredsp31-Oct-07 22:26 

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