public void BuildOnsets()
{
var audioAnalysis = new AudioAnalysis();
var onsetData = audioAnalysis.DetectOnsets(_frameData, 44100, 1024);
_onsets = new FrameData(onsetData, null, 1024);
}
public Song(string fileDirectory)
{
#region cppAnalyzerOld
/*var FloatSamples = Utilities.FloatArrayFromAudio(fileDirectory).ToArray();
* Process audioAnalyzer = new Process();
* string path = @"AubioAnalyzerCpp.exe";
* string currDirectory = Directory.GetCurrentDirectory();
* audioAnalyzer.StartInfo = new ProcessStartInfo(path, '"' + Directory.GetCurrentDirectory() + "\" " + FloatSamples.Length)
* {
* UseShellExecute = false,
* RedirectStandardInput = true,
* RedirectStandardOutput = true,
* };
* audioAnalyzer.Start();
* foreach (float sample in FloatSamples) {
* audioAnalyzer.StandardInput.WriteLine(sample);
* }
*
* string BPMString = audioAnalyzer.StandardOutput.ReadToEnd();
* BeatsPerMinute = (float)Convert.ToDouble(BPMString);
* audioAnalyzer.WaitForExit();
* if (audioAnalyzer.ExitCode != 0) throw new Exception("Audio Analyzer Failed");*/
#endregion cppAnalyzerOld
AudioAnalysis analyzer = new AudioAnalysis();
analyzer.LoadAudioFromFile(fileDirectory);
analyzer.DetectOnsets(out fluxes);
//BPMDetector bpmdet = new BPMDetector(fileDirectory);
//BeatsPerMinute = bpmdet.getBPM();
//msTilStart = bpmdet.getOffset();
Onsets = analyzer.GetOnsets().ToList();
TimePerSample = analyzer.GetTimePerSample();
}
void AnalyseSong(string filePath)
{
// Add the audio file name to the window title
this.Window.Title = "11010841 Proof of Concept - " + filePath;
// Load the audio file from the given file path
audioAnalysis.LoadAudioFromFile(filePath);
// Find the onsets
//audioAnalysis.PerformSpectralFlux(ONSET_SENSITIVITY);
audioAnalysis.DetectOnsets(ONSET_SENSITIVITY);
// Normalize the intensity of the onsets
audioAnalysis.NormalizeOnsets(0);
}
public void Initialize(ISampleSource soundSource, GeneratorOptions options)
{
analysis = new AudioAnalysis();
analysis.PCMStream = soundSource;
analysis.DetectOnsets();
analysis.NormalizeOnsets(0);
analysis.PCMStream.Position = 0;
fps = options.Fps;
Console.WriteLine("Audio analyzer detected " + analysis.GetOnsets().Count(f => f > 0) + " onsets!");
}
