def test_glissando_line(self):
p0 = old.PitchInterpolation(3, mel.SimplePitch(0, 300))
p1 = old.PitchInterpolation(4, mel.SimplePitch(0, 0))
p2 = old.PitchInterpolation(0, mel.SimplePitch(0, -300))
line = interpolations.InterpolationLine((p0, p1, p2))
gliss = old.GlissandoLine(line)
interpol0 = gliss.interpolate(1)
self.assertEqual(interpol0, (300, 200, 100, 0, -100, -200, -300))
def test_pitch_interpolation(self):
p0 = old.PitchInterpolation(3, mel.SimplePitch(0, 200))
p1 = old.PitchInterpolation(0, mel.SimplePitch(0, 0))
p2 = old.PitchInterpolation(0, mel.SimplePitch(0, 0))
self.assertNotEqual(hash(p0), hash(p1))
self.assertEqual(hash(p1), hash(p2))
interp0 = (200, 100, 0)
self.assertEqual(p0.interpolate(p1, 3), interp0)
def test_interpolation(self):
p0 = old.PitchInterpolation(3, mel.SimplePitch(0, 300))
p1 = old.PitchInterpolation(4, mel.SimplePitch(0, 0))
p2 = old.PitchInterpolation(0, mel.SimplePitch(0, -300))
line = interpolations.InterpolationLine((p0, p1, p2))
interpol = line(1)
self.assertEqual(interpol, (300, 200, 100, 0, -100, -200, -300))
self.assertRaises(
ValueError, lambda: interpolations.InterpolationLine((p0, p0, p1))
)
def from_concert_pitch(
cls,
name: str,
concert_pitch: float = None,
tempo_estimation_method: str = "essentia",
) -> "Transcription":
root = cls._get_root("{}.svl".format(name))
frequency_range = root[0][0].attrib["minimum"], root[0][0].attrib[
"maximum"]
data = cls._filter_data_from_root(root)
if concert_pitch is None:
concert_pitch = data[0][0]
new_data = []
for tone in data:
freq = tone[0]
cents = mel.SimplePitch.hz2ct(concert_pitch, freq)
pitch = mel.SimplePitch(concert_pitch_freq=concert_pitch,
cents=cents)
new_data.append((pitch, ) + tone[1:])
melody = cls._convert_data2melody(new_data, name,
tempo_estimation_method)
return cls(name, tuple(melody), frequency_range)
def test_vibrato_line(self):
p0 = old.PitchInterpolation(2, mel.SimplePitch(0, 300))
p1 = old.PitchInterpolation(4, mel.SimplePitch(0, 200))
p2 = old.PitchInterpolation(0, mel.SimplePitch(0, 600))
p3 = old.PitchInterpolation(4, mel.SimplePitch(0, -200))
p4 = old.PitchInterpolation(2, mel.SimplePitch(0, -600))
p5 = old.PitchInterpolation(0, mel.SimplePitch(0, -900))
r0 = old.RhythmicInterpolation(6, rhy.Unit(2))
r1 = old.RhythmicInterpolation(0, rhy.Unit(2))
line0 = interpolations.InterpolationLine((p0, p1, p2))
line1 = interpolations.InterpolationLine((p3, p4, p5))
line2 = interpolations.InterpolationLine((r0, r1))
vib0 = old.VibratoLine(line0, line1, line2, "up")
vib1 = old.VibratoLine(line0, line1, line2, "down")
interpol0 = vib0.interpolate(0.5)
interpol1 = vib1.interpolate(0.5)
self.assertNotEqual(interpol0, interpol1)
self.assertEqual(
tuple(round(n, 2) for n in interpol0),
(
-0.0,
275.0,
-0.0,
-371.43,
-0.0,
257.14,
-0.0,
-600.0,
-0.0,
485.71,
-0.0,
-900.0,
),
)
self.assertEqual(
tuple(round(n, 2) for n in interpol1),
(
0.0,
-257.14,
0.0,
225.0,
0.0,
-485.71,
0.0,
371.43,
0.0,
-750.0,
0.0,
600.0,
),
)
def mk_division_floats() -> tuple:
cents = MonochordString.mk_cents()
return tuple(mel.SimplePitch(1, ct).freq for ct in cents)
def __call__(self, melody: old.Melody) -> old.Melody:
new_melody = melody.copy()
melody_size = len(melody)
for idx, tone in enumerate(new_melody):
halved_duration = tone.duration * 0.5
# only add ornamentation if there isn't any glissando yet
if (not tone.glissando and not tone.pitch.is_empty
and halved_duration > self.__minima_gissando_duration):
previous = None
following = None
previous_distance = None
following_distance = None
if idx != 0 and not melody[idx - 1].pitch.is_empty:
previous = melody[idx - 1]
previous_distance = previous.pitch.cents - tone.pitch.cents
if idx + 1 != melody_size and not melody[idx +
1].pitch.is_empty:
following = melody[idx + 1]
following_distance = following.pitch.cents - tone.pitch.cents
beginning_and_end_glissando = (
previous is not None
and abs(previous_distance) > self.__minima_gissando_size,
following is not None
and abs(following_distance) > self.__minima_gissando_size,
)
if any(beginning_and_end_glissando):
if next(self.__al):
if all(beginning_and_end_glissando):
glissando_type = next(
self.__glissando_type_generator)
else:
glissando_type = beginning_and_end_glissando.index(
True)
glissando_type = ((True, False), (False, True),
(True, True))[glissando_type]
glissando_line = []
is_first = True
for is_allowed, distance in zip(
glissando_type,
(previous_distance, following_distance)):
if is_allowed:
data = self.get_glissando_values(
halved_duration, distance)
remaining_time = halved_duration - data[1]
if is_first:
data = (
old.PitchInterpolation(
data[1],
mel.SimplePitch(0, data[0])),
old.PitchInterpolation(
remaining_time,
mel.SimplePitch(0, 0)),
)
else:
data = (
old.PitchInterpolation(
remaining_time,
mel.SimplePitch(0, 0)),
old.PitchInterpolation(
data[1], mel.SimplePitch(0, 0)),
old.PitchInterpolation(
0, mel.SimplePitch(0, data[0])),
)
else:
data = [
old.PitchInterpolation(
halved_duration, mel.SimplePitch(0, 0))
]
if not is_first:
data.append(
old.PitchInterpolation(
0, mel.SimplePitch(0, 0)))
glissando_line.extend(data)
is_first = False
new_melody[idx].glissando = old.GlissandoLine(
interpolations.InterpolationLine(glissando_line))
return new_melody
