def bells():
def makebell(freq):
synth = WaveSynth()
duration = 2
divider = 2.2823535
fm = Triangle(freq / divider, amplitude=0.5)
s = synth.sine(freq, duration, fm_lfo=fm)
# apply ADSR envelope that resembles bell amp curve, see http://www.hibberts.co.uk/make.htm
s.envelope(0, duration * 0.25, .5, duration * 0.75)
s.echo(2, 5, 0.06, 0.6)
return s.make_32bit(False)
b_l1 = makebell(key_freq(56))
b_l2 = makebell(key_freq(60))
b_h1 = makebell(key_freq(78)).amplify(0.7)
b_h2 = makebell(key_freq(82)).amplify(0.7)
b_h3 = makebell(key_freq(84)).amplify(0.7)
bells = b_l1.mix_at(1.0, b_h1)
bells.mix_at(1.5, b_h2)
bells.mix_at(2, b_h3)
bells.mix_at(3, b_l2)
bells.mix_at(4, b_h2)
bells.mix_at(4.5, b_h3)
bells.mix_at(5, b_h1)
bells.make_16bit()
with Output.for_sample(bells) as out:
out.play_sample(bells)
def bells():
def makebell(freq):
synth = WaveSynth()
duration = 2
divider = 2.2823535
fm = Triangle(freq/divider, amplitude=0.5)
s = synth.sine(freq, duration, fm_lfo=fm)
# apply ADSR envelope that resembles bell amp curve, see http://www.hibberts.co.uk/make.htm
s.envelope(0, duration*0.25, .5, duration*0.75)
s.echo(2, 5, 0.06, 0.6)
return s.make_32bit(False)
b_l1 = makebell(key_freq(56))
b_l2 = makebell(key_freq(60))
b_h1 = makebell(key_freq(78)).amplify(0.7)
b_h2 = makebell(key_freq(82)).amplify(0.7)
b_h3 = makebell(key_freq(84)).amplify(0.7)
bells = b_l1.mix_at(1.0, b_h1)
bells.mix_at(1.5, b_h2)
bells.mix_at(2, b_h3)
bells.mix_at(3, b_l2)
bells.mix_at(4, b_h2)
bells.mix_at(4.5, b_h3)
bells.mix_at(5, b_h1)
bells.make_16bit()
with Output.for_sample(bells) as out:
out.play_sample(bells)
def demo_song():
synth = WaveSynth()
notes = {note: key_freq(49+i) for i, note in enumerate(['A', 'A#', 'B', 'C', 'C#', 'D', 'D#', 'E', 'F', 'F#', 'G', 'G#'])}
tempo = 0.3
def instrument(freq, duration):
harmonics = [(1, 1), (2, 1/2), (4, 1/4), (6, 1/6)]
a = synth.harmonics(freq, duration, harmonics)
return a.envelope(0.05, 0.2, 0.8, 0.5)
print("Synthesizing tones...")
quarter_notes = {note: instrument(notes[note], tempo) for note in notes}
half_notes = {note: instrument(notes[note], tempo*2) for note in notes}
full_notes = {note: instrument(notes[note], tempo*4) for note in notes}
song = "A A B. A D. C#.. ; A A B. A E. D.. ; A A A. F#.. D C#.. B ; G G F#.. D E D ; ; "\
"A A B. A D C#.. ; A A B. A E D. ; A A A. F#.. D C#.. B ; G G F#.. D E D ; ; "
with Output(synth.samplerate, synth.samplewidth, 1) as out:
for note in song.split():
if note == ";":
print()
time.sleep(tempo*2)
continue
print(note, end=" ", flush=True)
if note.endswith(".."):
sample = full_notes[note[:-2]]
elif note.endswith("."):
sample = half_notes[note[:-1]]
else:
sample = quarter_notes[note]
out.play_sample(sample)
print()
def demo_song():
synth = WaveSynth()
notes = {
note: key_freq(49 + i)
for i, note in enumerate(
['A', 'A#', 'B', 'C', 'C#', 'D', 'D#', 'E', 'F', 'F#', 'G', 'G#'])
}
tempo = 0.3
def instrument(freq, duration):
harmonics = [(1, 1), (2, 1 / 2), (4, 1 / 4), (6, 1 / 6)]
a = synth.harmonics(freq, duration, harmonics)
return a.envelope(0.05, 0.2, 0.8, 0.5)
print("Synthesizing tones...")
quarter_notes = {note: instrument(notes[note], tempo) for note in notes}
half_notes = {note: instrument(notes[note], tempo * 2) for note in notes}
full_notes = {note: instrument(notes[note], tempo * 4) for note in notes}
song = "A A B. A D. C#.. ; A A B. A E. D.. ; A A A. F#.. D C#.. B ; G G F#.. D E D ; ; "\
"A A B. A D C#.. ; A A B. A E D. ; A A A. F#.. D C#.. B ; G G F#.. D E D ; ; "
with Output(synth.samplerate, synth.samplewidth, 1) as out:
for note in song.split():
if note == ";":
print()
time.sleep(tempo * 2)
continue
print(note, end=" ", flush=True)
if note.endswith(".."):
sample = full_notes[note[:-2]]
elif note.endswith("."):
sample = half_notes[note[:-1]]
else:
sample = quarter_notes[note]
out.play_sample(sample)
print()
import time
from collections import OrderedDict
from synthesizer.sample import Sample
from synthesizer.playback import Output
from synthesizer.synth import WaveSynth, key_freq, octave_notes, major_chord_keys, note_freq, key_num
from synthesizer.synth import Sine, Triangle, Pulse, Square, SquareH, Sawtooth, SawtoothH, WhiteNoise, Linear, Harmonics
from synthesizer.synth import FastSine, FastPulse, FastSawtooth, FastSquare, FastTriangle
from synthesizer.synth import EchoFilter, EnvelopeFilter, AbsFilter, ClipFilter, DelayFilter
# some note frequencies for octaves 1 to 7
notes = [
None,
OrderedDict(
(note, key_freq(4 + i)) for i, note in enumerate(octave_notes)),
OrderedDict(
(note, key_freq(16 + i)) for i, note in enumerate(octave_notes)),
OrderedDict(
(note, key_freq(28 + i)) for i, note in enumerate(octave_notes)),
OrderedDict(
(note, key_freq(40 + i)) for i, note in enumerate(octave_notes)),
OrderedDict(
(note, key_freq(52 + i)) for i, note in enumerate(octave_notes)),
OrderedDict(
(note, key_freq(64 + i)) for i, note in enumerate(octave_notes)),
OrderedDict(
(note, key_freq(76 + i)) for i, note in enumerate(octave_notes))
]
def demo_tones():
synth = WaveSynth()
import time
from collections import OrderedDict
from synthesizer.sample import Output, Sample
from synthesizer.synth import WaveSynth, key_freq, octave_notes, major_chord_keys, note_freq, key_num
from synthesizer.synth import Sine, Triangle, Pulse, Square, SquareH, Sawtooth, SawtoothH, WhiteNoise, Linear, Harmonics
from synthesizer.synth import FastSine, FastPulse, FastSawtooth, FastSquare, FastTriangle
from synthesizer.synth import EchoFilter, EnvelopeFilter, AbsFilter, ClipFilter, DelayFilter
# some note frequencies for octaves 1 to 7
notes = [
None,
OrderedDict((note, key_freq(4+i)) for i, note in enumerate(octave_notes)),
OrderedDict((note, key_freq(16+i)) for i, note in enumerate(octave_notes)),
OrderedDict((note, key_freq(28+i)) for i, note in enumerate(octave_notes)),
OrderedDict((note, key_freq(40+i)) for i, note in enumerate(octave_notes)),
OrderedDict((note, key_freq(52+i)) for i, note in enumerate(octave_notes)),
OrderedDict((note, key_freq(64+i)) for i, note in enumerate(octave_notes)),
OrderedDict((note, key_freq(76+i)) for i, note in enumerate(octave_notes))
]
def demo_tones():
synth = WaveSynth()
with Output(nchannels=1) as out:
for wave in [synth.square_h, synth.square, synth.sine, synth.triangle, synth.sawtooth, synth.sawtooth_h]:
print(wave.__name__)
for note, freq in list(notes[4].items())[6:]:
print(" {:f} hz".format(freq))
sample = wave(freq, duration=0.4).fadein(0.02).fadeout(0.1)
out.play_sample(sample)
