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source: python/aubio/task/pitch.py @ 6610143

feature/autosinkfeature/cnnfeature/cnn_orgfeature/constantqfeature/crepefeature/crepe_orgfeature/pitchshiftfeature/pydocstringsfeature/timestretchfix/ffmpeg5pitchshiftsamplertimestretchyinfft+

Last change on this file since 6610143 was 83376e9, checked in by Paul Brossier <piem@altern.org>, 19 years ago
update task.pitch.{eval,plot} update task.pitch.{eval,plot}
Property mode set to `100644`
File size: 6.3 KB

Rev	Line
[13c3fba]	1	from aubio.task.task import task
	2	from aubio.task.silence import tasksilence
	3	from aubio.task.utils import *
	4	from aubio.aubioclass import *
	5
	6	class taskpitch(task):
	7	def __init__(self,input,params=None):
	8	task.__init__(self,input,params=params)
	9	self.shortlist = [0. for i in range(self.params.pitchsmooth)]
	10	self.pitchdet = pitchdetection(mode=get_pitch_mode(self.params.pitchmode),
	11	bufsize=self.params.bufsize,
	12	hopsize=self.params.hopsize,
	13	channels=self.channels,
	14	samplerate=self.srate,
[83376e9]	15	omode=self.params.omode,
	16	yinthresh=self.params.yinthresh)
[13c3fba]	17
	18	def __call__(self):
	19	from aubio.median import short_find
	20	task.__call__(self)
	21	if (aubio_silence_detection(self.myvec(),self.params.silence)==1):
	22	freq = -1.
	23	else:
	24	freq = self.pitchdet(self.myvec)
	25	minpitch = self.params.pitchmin
	26	maxpitch = self.params.pitchmax
	27	if maxpitch and freq > maxpitch :
	28	freq = -1.
	29	elif minpitch and freq < minpitch :
	30	freq = -1.
	31	if self.params.pitchsmooth:
	32	self.shortlist.append(freq)
	33	self.shortlist.pop(0)
	34	smoothfreq = short_find(self.shortlist,
	35	len(self.shortlist)/2)
	36	return smoothfreq
	37	else:
	38	return freq
	39
	40	def compute_all(self):
	41	""" Compute data """
	42	mylist = []
	43	while(self.readsize==self.params.hopsize):
	44	freq = self()
	45	mylist.append(freq)
	46	if self.params.verbose:
	47	self.fprint("%s\t%s" % (self.frameread*self.params.step,freq))
	48	return mylist
	49
	50	def gettruth(self):
	51	""" extract ground truth array in frequency """
	52	import os.path
	53	""" from wavfile.txt """
	54	datafile = self.input.replace('.wav','.txt')
	55	if datafile == self.input: datafile = ""
	56	""" from file.<midinote>.wav """
	57	# FIXME very weak check
	58	floatpit = self.input.split('.')[-2]
	59	if not os.path.isfile(datafile) and len(self.input.split('.')) < 3:
	60	print "no ground truth "
	61	return False,False
	62	elif floatpit:
	63	try:
[5d1c070]	64	self.truth = float(floatpit)
	65	#print "ground truth found in filename:", self.truth
	66	tasksil = tasksilence(self.input,params=self.params)
[13c3fba]	67	time,pitch =[],[]
	68	while(tasksil.readsize==tasksil.params.hopsize):
	69	tasksil()
	70	time.append(tasksil.params.step*tasksil.frameread)
	71	if not tasksil.issilence:
	72	pitch.append(self.truth)
	73	else:
	74	pitch.append(-1.)
	75	return time,pitch #0,aubio_miditofreq(float(floatpit))
	76	except ValueError:
	77	# FIXME very weak check
	78	if not os.path.isfile(datafile):
	79	print "no ground truth found"
	80	return 0,0
	81	else:
	82	from aubio.txtfile import read_datafile
	83	values = read_datafile(datafile)
	84	time, pitch = [], []
	85	for i in range(len(values)):
	86	time.append(values[i][0])
[83376e9]	87	if values[i][1] == 0.0:
	88	pitch.append(-1.)
	89	else:
	90	pitch.append(aubio_freqtomidi(values[i][1]))
[13c3fba]	91	return time,pitch
	92
[5d1c070]	93	def oldeval(self,results):
[13c3fba]	94	def mmean(l):
	95	return sum(l)/max(float(len(l)),1)
	96
	97	from aubio.median import percental
	98	timet,pitcht = self.gettruth()
	99	res = []
	100	for i in results:
	101	#print i,self.truth
	102	if i <= 0: pass
	103	else: res.append(self.truth-i)
	104	if not res or len(res) < 3:
	105	avg = self.truth; med = self.truth
	106	else:
	107	avg = mmean(res)
	108	med = percental(res,len(res)/2)
	109	return self.truth, self.truth-med, self.truth-avg
	110
[83376e9]	111	def eval(self,pitch,tol=0.5):
[13c3fba]	112	timet,pitcht = self.gettruth()
[5d1c070]	113	pitch = [aubio_freqtomidi(i) for i in pitch]
	114	for i in range(len(pitch)):
	115	if pitch[i] == "nan" or pitch[i] == -1:
	116	pitch[i] = -1
	117	time = [ i*self.params.step for i in range(len(pitch)) ]
[83376e9]	118	#print len(timet),len(pitcht)
	119	#print len(time),len(pitch)
	120	if len(timet) != len(time):
	121	time = time[1:len(timet)+1]
	122	pitch = pitch[1:len(pitcht)+1]
	123	#pitcht = [aubio_freqtomidi(i) for i in pitcht]
	124	for i in range(len(pitcht)):
	125	if pitcht[i] == "nan" or pitcht[i] == "-inf" or pitcht[i] == -1:
	126	pitcht[i] = -1
	127	assert len(timet) == len(time)
[5d1c070]	128	assert len(pitcht) == len(pitch)
	129	osil, esil, opit, epit, echr = 0, 0, 0, 0, 0
	130	for i in range(len(pitcht)):
	131	if pitcht[i] == -1: # currently silent
	132	osil += 1 # count a silence
[83376e9]	133	if pitch[i] <= 0. or pitch[i] == "nan":
[5d1c070]	134	esil += 1 # found a silence
	135	else:
	136	opit +=1
	137	if abs(pitcht[i] - pitch[i]) < tol:
	138	epit += 1
	139	echr += 1
	140	elif abs(pitcht[i] - pitch[i]) % 12. < tol:
	141	echr += 1
	142	#else:
	143	# print timet[i], pitcht[i], time[i], pitch[i]
	144	#print "origsilence", "foundsilence", "origpitch", "foundpitch", "orig pitchroma", "found pitchchroma"
	145	#print 100.esil/float(osil), 100.epit/float(opit), 100.*echr/float(opit)
	146	return osil, esil, opit, epit, echr
[13c3fba]	147
	148	def plot(self,pitch,wplot,oplots,outplot=None):
	149	import numarray
	150	import Gnuplot
	151
	152	downtime = self.params.step*numarray.arange(len(pitch))
[83376e9]	153	pitch = [aubio_freqtomidi(i) for i in pitch]
	154	oplots.append(Gnuplot.Data(downtime,pitch,with='lines',
[13c3fba]	155	title=self.params.pitchmode))
	156
	157
[83376e9]	158	def plotplot(self,wplot,oplots,outplot=None,multiplot = 1, midi = 1):
[13c3fba]	159	from aubio.gnuplot import gnuplot_init, audio_to_array, make_audio_plot
	160	import re
	161	import Gnuplot
	162	# audio data
	163	time,data = audio_to_array(self.input)
	164	f = make_audio_plot(time,data)
	165
	166	# check if ground truth exists
	167	timet,pitcht = self.gettruth()
	168	if timet and pitcht:
	169	oplots = [Gnuplot.Data(timet,pitcht,with='lines',
	170	title='ground truth')] + oplots
	171
	172	t = Gnuplot.Data(0,0,with='impulses')
	173
	174	g = gnuplot_init(outplot)
	175	g('set title \'%s\'' % (re.sub('.*/','',self.input)))
	176	g('set multiplot')
	177	# hack to align left axis
	178	g('set lmargin 15')
	179	# plot waveform and onsets
	180	g('set size 1,0.3')
	181	g('set origin 0,0.7')
	182	g('set xrange [0:%f]' % max(time))
	183	g('set yrange [-1:1]')
	184	g.ylabel('amplitude')
	185	g.plot(f)
	186	g('unset title')
	187	# plot onset detection function
	188
	189
	190	g('set size 1,0.7')
	191	g('set origin 0,0')
	192	g('set xrange [0:%f]' % max(time))
[83376e9]	193	if not midi:
	194	g('set log y')
	195	#g.xlabel('time (s)')
	196	g.ylabel('f0 (Hz)')
	197	g('set yrange [100:%f]' % self.params.pitchmax)
	198	else:
	199	g.ylabel('pitch (midi)')
	200	g('set yrange [%f:%f]' % (40, aubio_freqtomidi(self.params.pitchmax)))
[13c3fba]	201	g('set key right top')
	202	g('set noclip one')
	203	g('set format x ""')
	204	if multiplot:
	205	for i in range(len(oplots)):
	206	# plot onset detection functions
	207	g('set size 1,%f' % (0.7/(len(oplots))))
	208	g('set origin 0,%f' % (float(i)*0.7/(len(oplots))))
	209	g('set xrange [0:%f]' % max(time))
	210	g.plot(oplots[i])
	211	else:
	212	g.plot(*oplots)
	213	g('unset multiplot')
	214

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