void CheckForBeat()
{
GameObject beatCube = GameObject.FindGameObjectWithTag("Beat Cube");
Renderer cubeRend = beatCube.GetComponent <Renderer>();
float[] rightChannel = new float[SAMPLE_SIZE];
float[] leftChannel = new float[SAMPLE_SIZE];
source.GetOutputData(rightChannel, 0);
source.GetOutputData(leftChannel, 1);
float instantEnergy = AudioAnalyser.GetInstantEnergy(rightChannel, leftChannel);
float localAverageEnergy = AudioAnalyser.GetLocalAverageEnergy(instantEnergyHistory);
float variance = AudioAnalyser.GetEnergyVariance(instantEnergyHistory, localAverageEnergy);
float constant = AudioAnalyser.GetEnergyFormulaConstant(variance);
float[] shiftArray = new float[instantEnergyHistory.Length];
Array.Copy(instantEnergyHistory, 0, shiftArray, 1, instantEnergyHistory.Length - 1);
shiftArray[0] = instantEnergy;
Array.Copy(shiftArray, instantEnergyHistory, shiftArray.Length);
float beatEnergyTarget = constant * localAverageEnergy;
Debug.Log("Instant Energy: " + instantEnergyHistory[0] + "\nAverage Energy: " + localAverageEnergy + "\nEnergy Constant: " + constant + "\nBeat target: " + beatEnergyTarget);
if (instantEnergy > beatEnergyTarget)
{
Debug.Log("Beat Detected");
cubeRend.material.color = Color.green;
beatCount += 1;
}
else
{
cubeRend.material.color = Color.red;
}
}
private Beat CheckForBeat(float[] rightChannel, float[] leftChannel)
{
float instantEnergy = AudioAnalyser.GetInstantEnergy(rightChannel, leftChannel);
float localAverageEnergy = AudioAnalyser.GetLocalAverageEnergy(instantEnergyHistory);
float variance = AudioAnalyser.GetEnergyVariance(instantEnergyHistory, localAverageEnergy);
float constant = AudioAnalyser.GetEnergyFormulaConstant(variance, sensitivity);
float[] shiftArray = new float[instantEnergyHistory.Length];
Array.Copy(instantEnergyHistory, 0, shiftArray, 1, instantEnergyHistory.Length - 1);
shiftArray[0] = instantEnergy;
Array.Copy(shiftArray, instantEnergyHistory, shiftArray.Length);
float beatEnergyTarget = constant * localAverageEnergy;
Debug.Log("Instant Energy: " + instantEnergyHistory[0] + "\nAverage Energy: " + localAverageEnergy + "\nEnergy Constant: " + constant + "\nBeat target: " + beatEnergyTarget);
if (instantEnergy > beatEnergyTarget && instantEnergy > Mathf.Epsilon)
{
return(new Beat(0, 0, instantEnergy, localAverageEnergy, beatEnergyTarget));
}
return(null);
}