def test_miditofreq(self):
a = list(range(-30, 200)) + [-100000, 10000]
b = miditofreq(a)
#print zip(a, b)
assert_equal ( isnan(b), False )
assert_equal ( isinf(b), False )
assert_equal ( b < 0, False )
def sample(samples):
pitch = pitch_o(samples)[0]
is_beat= T.tempo(samples)
# print(pitch)
if is_beat:
# print "\nBPMS",is_beat,"\n"
tb=T.tempo.get_last_s()
T.beats.append(tb)
if(len(T.beats)>T.median_win_s):
bpms = 60./ diff(T.beats)
T.bpms = median(bpms[-T.median_win_s:])
print "\nBPMS",bpms,"\n"
pitch = int(round(pitch))
confidence = pitch_o.get_confidence()
print confidence
if confidence < 0.8: pitch = 0.
if confidence > 0.8:
n=midi2note(min(pitch,127))
print confidence,pitch,miditofreq(min(pitch,127)),midi2note(min(pitch,127))
# st+=' '+midi2note(int(pitch))
if(n[-1]!='1'):noter(n)
def test_miditofreq(self):
a = range(-30, 200) + [-100000, 10000]
b = miditofreq(a)
#print zip(a, b)
assert_equal(isnan(b), False)
assert_equal(isinf(b), False)
assert_equal(b < 0, False)
def play_taam(seq):
for taam in seq:
# print(taam)
if taam != np.nan:
freq = miditofreq(taam)
sine(frequency=freq, duration=.3)
else:
time.sleep(.3)
def GuessNominalFreqFromFileName(self):
'''tries to guess note frequency from the file name
'''
import aubio
import re
tokens = re.findall('([A-Ga-g][sS#bB+-]*\d+)', self.name)
try:
notename = re.sub('s', '#', tokens[0])
f = aubio.miditofreq(aubio.note2midi(notename))
except (ValueError, IndexError):
f = np.NaN
return f
def run_analysis(self):
print("Starting to listen, press Ctrl+C to stop")
while True:
try:
# read data from audio input
_, data = self._mic.read()
# convert data to aubio float samples
samples = numpy.fromstring(data, dtype=aubio.float_type)
# get the note from the sample data
new_note = self._note_analyzer(samples)
if (new_note[0] != 0):
#note_str = ' '.join(["%.2f" % i for i in new_note])
print str(new_note)
frequency = int(miditofreq(new_note[0]))
print "To frequency: {0}".format(frequency)
self._serial_proxy.send(frequency)
except KeyboardInterrupt:
print("Ctrl+C pressed, exiting")
break
# For posting to ly-server
# st='{"commands":[{"command":"musicxml"},{"command":"mode"}],"data":"relative c {'
st='relative c {'
while True:
samples, read = s()
print samples[0], len(samples)
pitch = pitch_o(samples)[0]
# print(pitch)
pitch = int(round(pitch))
confidence = pitch_o.get_confidence()
if confidence < 0.8: pitch = 0.
if confidence > 0.8:
print len(pitches) * hop_s,miditofreq(pitch),midi2note(int(pitch))
st+=' '+midi2note(int(pitch))
noter(midi2note(int(pitch)))
#print "%f %f %f" % (total_frames / float(samplerate), pitch, confidence)
pitches += [pitch]
confidences += [confidence]
total_frames += read
if read < hop_s: break
# st+=' }"}'
st+=' }'
st=st.replace('#','').lower()
print st
# post(st)
#! /usr/bin/env python
from aubio import miditofreq
from numpy import arange
upsampling = 100.
midi = arange(-10, 148 * upsampling)
midi /= upsampling
freq = miditofreq(midi)
from matplotlib import pyplot as plt
ax = plt.axes()
ax.semilogy(midi, freq, '.')
ax.set_xlabel('midi note')
ax.set_ylabel('frequency (Hz)')
plt.show()
