def test_ns_contour_invalid():
srand()
ann = Annotation(namespace='pitch_contour')
seq_len = 21
times = np.arange(seq_len)
durations = np.zeros(seq_len)
values = np.linspace(0, 22050, seq_len) # includes 0 (odd symmetric)
ids = np.arange(len(values)) // 4
voicing = np.random.randn(len(ids)) * 2
confidences = np.linspace(0, 1., seq_len)
confidences[seq_len // 2] = None # throw in a None confidence value
for (t, d, v, c, i, b) in zip(times, durations, values, confidences, ids,
voicing):
ann.append(time=t,
duration=d,
value={
'pitch': v,
'id': i,
'voiced': b
},
confidence=c)
ann.validate()
def est_melody():
srand()
freq = np.linspace(110.0, 440.0, 10)
voice = np.sign(np.random.randn(len(freq)))
return create_annotation(values=freq * voice, confidence=1.0,
duration=0.01,
namespace='pitch_hz')
def est_melody():
srand()
freq = np.linspace(110.0, 440.0, 10)
voice = np.sign(np.random.randn(len(freq)))
return create_annotation(values=freq * voice,
confidence=1.0,
duration=0.01,
namespace='pitch_hz')