audiogen.cs

audiogen.cs

    void OnAudioFilterRead(float[] data, int channels)
    {
        for(int i = 0; i < data.Length; i+= channels)
        {          
            data[i] = CreateSine(timeIndex, frequency1, sampleRate);
           
            if(channels == 2)
                data[i+1] = CreateSine(timeIndex, frequency2, sampleRate);
           
            timeIndex++;
           
            //if timeIndex gets too big, reset it to 0
            if(timeIndex >= (sampleRate * waveLengthInSeconds))
            {
                timeIndex = 0;
            }
        }
    }
   
    //Creates a sinewave
    public float CreateSine(int timeIndex, float frequency, float sampleRate)
    {
        return Mathf.Sin(2 * Mathf.PI * timeIndex * frequency / sampleRate);
    }