Method KeyExtractor

src/algorithms/extractor/keyextractor.cpp:32–41

const char* KeyExtractor::description = DOC("this algorithm extracts key/scale for an audio stream");

KeyExtractor::KeyExtractor(): _frameCutter(0), _windowing(0), _spectrum(0), _spectralPeaks(0),
                              _hpcpKey(0), _key(0) {

  declareInput(_audio, "audio", "the audio signal");
  declareOutput(_keyKey, "key", "see Key algorithm documentation");
  declareOutput(_keyScale, "scale", "see Key algorithm documentation");
  declareOutput(_keyStrength, "strength", "see Key algorithm documentation");

  createInnerNetwork();
}

void KeyExtractor::createInnerNetwork() {
  AlgorithmFactory& factory = AlgorithmFactory::instance();