private static double GetAverage(List <byte[]> sampleList, int start = 0)
{
long sum = 0;
long totalLength = 0;
for (int j = start; j < sampleList.Count; j++) // (byte[] samples in sampleList)
{
byte[] samples = sampleList[j];
var shorts = new short[samples.Length / 2];
Buffer.BlockCopy(samples, 0, shorts, 0, samples.Length);
totalLength += shorts.Length;
sum = shorts.Aggregate(sum, (current, t) => current + Math.Abs((int)t));
}
return(sum / (double)totalLength);
}
private static double GetRMS(IList <byte[]> sampleList, int start = 0)
{
long sum = 0;
long totalLength = 0;
for (int j = start; j < sampleList.Count; j++) // foreach (byte[] samples in sampleList)
{
byte[] samples = sampleList[j];
var shorts = new short[samples.Length / 2];
Buffer.BlockCopy(samples, 0, shorts, 0, samples.Length);
totalLength += shorts.Length;
sum = shorts.Aggregate(sum, (current, t) => current + (t * t));
}
double average = sum / (double)totalLength;
return(Math.Sqrt(average));
}