Sine Wave Generator

Sathyanarayana Hadadi January 15, 20132 comments Coded in C

Generates a sine wave ampliture*sin(angularfrequency * time) by plotting every sample

/*************************************************************************************************************
sineWaveGeneration
*************************************************************************************************************/
void sineWaveGeneration(unsigned long amplitude, unsigned long frequency, unsigned long time)
{
    const double angularfrequency = (2.0 * pi) * (double)frequency;
    const double pi = 3.141592654;
    double timeperiod;
    const double samplingrate = 48000;
    double displacement;

    //declare values
    
    //obtain omega(the angular frequency)
        // creates a 'for' loop that continues until 'endtime'
    for (timeperiod = 0; timeperiod <= (double)time; timeperiod = timeperiod+(1/samplingrate))
    {
        //creates the sine wave A*sin(wt) by plotting every sample.
        displacement = sin(angularfrequency * timeperiod) * amplitude;
    }
    return;
}