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); }