def _calcChordThread(self, begin, end):
self.updateProgressText.emit("Opening wave...")
wave = wave2.Wave(self.wave.data[begin:end], self.wave.sampleRate)
self.updateProgressText.emit("Analyzing frequencies...")
freqs = freqSet.fromWave(wave)
self.updateProgress.emit(40)
self.updateProgressText.emit("Grouping into notes...")
notes = noteset.fromFreqSet(freqs)
self.updateProgress.emit(80)
self.updateProgressText.emit("Finding chords...")
chords = scalefinder.findTriad(notes)
self.updateProgress.emit(85)
self.updateProgressText.emit("Correcting weights...")
chords = functions.makeWeightsCorrect(chords)
self.updateProgress.emit(90)
self.updateProgressText.emit("Sorting to likeliness...")
chords = sorted(chords, key=lambda x: x[1])
self.updateProgress.emit(0)
self.updateProgressText.emit("")
self.updateResult.emit(ResultTypes.CHORDS, chords)
def _openWave(filename):
if filename != '':
return wave2.getFromFile(filename)
else:
print 'File name not specified.'
return
def _calcChord(wave, begin, end):
'''Analyzes the chords between begin and end point of the wave object
@param wave: wave data
@param begin: beginning point of the wave
@param end: ending point of the wave'''
_wave = wave2.Wave(wave.data[begin:end], wave.sampleRate)
freqs = freqSet.fromWave(_wave)
notes = noteset.fromFreqSet(freqs)
chords = scalefinder.findTriad(notes)
chords = functions.makeWeightsCorrect(chords)
chords = sorted(chords, key=lambda x : x[1])
# The first element in the tuple being the most accurate chord
return (chords[-1][0], chords[-2][0], chords[-3][0])
if __name__ == '__main__':
filename = raw_input("Enter the WAV file name to analyze : ")
[wave, totaltime] = _openWave(filename)
beat = # function to find the beat of the music
intervals = _determineIntervals(beat, totaltime)