public IFrameData MakeSummaryData(IFrameData input, int ratio)
{
var max = new List<float>();
input.BeginChunkyRead(ratio);
IFrameDataSubset subset = null;
while(input.ReadChunk(ref subset))
{
var maxmag = Math.Max(subset.Left.Max(), subset.Right.Max());
var minmag = Math.Min(subset.Left.Min(), subset.Right.Min());
max.Add(Math.Max(maxmag, Math.Abs(minmag)));
}
return new FrameData(max.ToArray(), null, ratio);
}
public IFrameData MakeSummaryData(IFrameData input, int ratio)
{
var max = new List <float>();
input.BeginChunkyRead(ratio);
IFrameDataSubset subset = null;
while (input.ReadChunk(ref subset))
{
var maxmag = Math.Max(subset.Left.Max(), subset.Right.Max());
var minmag = Math.Min(subset.Left.Min(), subset.Right.Min());
max.Add(Math.Max(maxmag, Math.Abs(minmag)));
}
return(new FrameData(max.ToArray(), null, ratio));
}
public float[] DetectOnsets(IFrameData waveData, int samplesPerSecond, int sampleWindowSize, float sensitivity = 1.5f)
{
_onsetDetection = new OnsetDetection(sampleWindowSize, samplesPerSecond);
waveData.BeginChunkyRead(sampleWindowSize);
IFrameDataSubset subset = null;
while(waveData.ReadChunk(ref subset))
{
var mono = ConvertStereoToMono(subset);
_onsetDetection.AddFlux(mono);
}
var onsets = _onsetDetection.FindOnsets(sensitivity);
_onsetDetection.NormalizeOnsets(onsets, 0);
return onsets;
}
public float[] DetectOnsets(IFrameData waveData, int samplesPerSecond, int sampleWindowSize, float sensitivity = 1.5f)
{
_onsetDetection = new OnsetDetection(sampleWindowSize, samplesPerSecond);
waveData.BeginChunkyRead(sampleWindowSize);
IFrameDataSubset subset = null;
while (waveData.ReadChunk(ref subset))
{
var mono = ConvertStereoToMono(subset);
_onsetDetection.AddFlux(mono);
}
var onsets = _onsetDetection.FindOnsets(sensitivity);
_onsetDetection.NormalizeOnsets(onsets, 0);
return(onsets);
}
