Welcome to the goertzel wiki!

I created this repo to share my expericence with goertzel algorithm, caller id, signal modulation(especially fsk) and etc. I will share all my work in github. You will see the the whole development with all the nudity.

Quick test.

If you want to test how it decodes signal data coming from mic here are the steps:

1. Download the repo

2. Open it with visual studio (created in vs2015)

3. Select GoertzelFSKDecoder as start-up project.

4. In the code, modify the constructor method of Form1.

    public Form1()
    {
        InitializeComponent();
   
        gd.TargetFreqs.Add(697);
        gd.TargetFreqs.Add(770);
        gd.TargetFreqs.Add(852);
        gd.TargetFreqs.Add(941);
        gd.TargetFreqs.Add(1209);
        gd.TargetFreqs.Add(1336);
        gd.TargetFreqs.Add(1477);
        gd.TargetFreqs.Add(1633);
   
        gd.OnGoertzelDecoded += GdOnOnGoertzelDecoded;
   
        gd.RunGoertzel();
    }
   

You can add the your desired frequencies to test the algorithm.

All the feedbacks are highly appreciated.