def __init__(self, no_patterns: int, steps: int, bpm: float):
"""
:param no_patterns: number of patterns (number of samples to trigger)
:param steps: number of steps
:param bpm: beats per minute
"""
self.time_per_step = 1. / bpm * 60 / 4
self.duration = steps * self.time_per_step
self.offsets = [[0.] * steps for _ in range(no_patterns + 1)]
self.pattern = [[False] * steps for _ in range(no_patterns + 1)]
self.pattern_tables = [
pyo.NewTable(self.duration) for _ in range(no_patterns + 1)
]
self.trigger_tables = [
pyo.TableRead(table, freq=1. / self.duration, interp=1, loop=1)
for table in self.pattern_tables
]
self.trigger_functions = [
pyo.TrigFunc(trigger, lambda: None)
for trigger in self.trigger_tables
]
self.sampling_rate = self.trigger_tables[0].getSamplingRate()
# the last pattern is always on to implement a callback at each step
for step in range(steps):
self.activate(no_patterns, step)
def __init__(self, extractor):
self.extractor = extractor
self.table = pyo.NewTable(extractor.table.length)
self.player = pyo.TableRead(self.table, freq=self.table.getRate())
self.metro = pyo.Metro()
self.trig = pyo.Percent(self.metro)
self.trig_play = pyo.TrigFunc(self.trig, self.play)
self.samples = np.asarray(self.table.getBuffer())
def __init__(self, inp):
self.inp = inp
self.rec = False
self.chain_data = np.zeros((CHAIN_LEN, 3))
self.last_pitch = 0
self.iw = 0
self.ir = 0
self.pitch_track = pyo.Yin(self.inp)
self.vol_track = pyo.Clip(pyo.Follower(self.inp) * 500, 0.1, 1)
self.pitch_table = pyo.NewTable(MAX_NOTE_LEN)
self.vol_table = pyo.NewTable(MAX_NOTE_LEN)
self.pitch_rec = pyo.TableRec(self.pitch_track, self.pitch_table)
self.vol_rec = pyo.TableRec(self.vol_track, self.vol_table)
self.pitch_samples = np.asarray(self.pitch_table.getBuffer())
self.vol_samples = np.asarray(self.vol_table.getBuffer())
self.note_detector = pyo.AttackDetector(self.inp)
self.trig_rec = pyo.TrigFunc(self.note_detector, self.start_rec)
self.trig_stop = pyo.TrigFunc(self.pitch_rec['trig'], self.stop_rec)
def TableWrap(audio, duration):
'''
Records a PyoAudio generator into a sound table, returns a tableread object which can play the audio with .out()
'''
# Duration is in ms, so divide by 1000
audio.play()
tab = pyo.NewTable(length=(float(duration) / 1000),
chnls=rpiset.NUM_CHANNELS)
tabrec = pyo.TableRec(audio, table=tab, fadetime=0.01)
tabrec.play()
sleep((float(duration) / 1000))
tabread = pyo.TableRead(tab, loop=0)
return tabread
def __init__(self):
super().__init__()
self.sine = pyo.CosTable([(0, 0), (100, 1), (1000, .25), (8191, 0)])
self.square = pyo.SquareTable()
self.saw = pyo.SawTable()
self.synth = pyo.NewTable(8192 / 44100)
self.pointer = pyo.Sig(0)
self.morph = pyo.TableMorph(self.pointer, self.synth,
[self.sine, self.square, self.saw])
self.osc = pyo.Osc(self.synth, 440)
self.filter = pyo.Biquad(self.osc)
self.verb = pyo.WGVerb(self.filter).mix(2)
def __init__(self, chain, extractor):
self.chain = chain
self.extractor = extractor
self.table = pyo.NewTable(self.extractor.table.length)
self.window = pyo.HannTable(self.table.size)
self.samples = np.asarray(self.table.getBuffer())
self.pitch = pyo.Sig(0)
self.vol = pyo.Sig(0)
self.env = pyo.Adsr()
self.osc = pyo.Granule(self.table, self.window, dens=100)
self.osc.setSync(False)
self.sin = pyo.Blit(self.pitch, mul=self.vol)
self.vocoder = pyo.Vocoder(self.sin, self.osc, self.pitch)
self.compressor = pyo.Compress(self.vocoder)
def table_wrap(self, audio, duration=None):
"""Records a PyoAudio generator into a sound table, returns a
tableread object which can play the audio with .out()
Args:
audio:
duration:
"""
if not duration:
duration = self.duration
# Duration is in ms, so divide by 1000
# See https://groups.google.com/forum/#!topic/pyo-discuss/N-pan7wPF-o
# TODO: Get chnls to be responsive to NCHANNELS in prefs. hardcoded for now
tab = pyo.NewTable(
length=(float(duration) / 1000), chnls=prefs.NCHANNELS
) # Prefs should always be declared in the global namespace
tabrec = pyo.TableRec(audio, table=tab, fadetime=0.005).play()
sleep((float(duration) / 1000))
self.table = pyo.TableRead(tab, freq=tab.getRate(), loop=0)
def __init__(self, inp):
self.inp = inp
self.sounds = np.zeros((N_SEGMENTS, pyo.secToSamps(MAX_NOTE_LEN)))
self.lens = np.zeros(N_SEGMENTS, dtype=np.int32)
self.iw = 0
self.on = False
self.thresh = pyo.Sig(0.01)
self.follower = pyo.Follower(self.inp, freq=10)
self.up = pyo.Thresh(self.follower, self.thresh, dir=0)
self.down = pyo.Thresh(self.follower, self.thresh, dir=1)
self.table = pyo.NewTable(MAX_NOTE_LEN)
self.rec = pyo.TableRec(self.inp, self.table)
self.trig_start = pyo.TrigFunc(self.up, self.start_rec)
self.trig_save = pyo.TrigFunc(self.down, self.save_sound)
self.trig_drop = pyo.TrigFunc(self.rec['trig'], self.drop_rec)
self.samples = np.asarray(self.table.getBuffer())
def __init__(self, obj, path, chnls):
# instance variables
self._chnls = chnls
self._path = path # root path for recordings
self._table_dur = 120.0 # min 5 sec.
self._current_table_index = -1
self._table_count = 2
self._table_list = [
pyo.NewTable(self._table_dur, self._chnls)
for i in range(self._table_count)
]
self._total_count = 0
# pyo objects
self._getNextTable()
self._rec_obj = pyo.TableRec(
obj, self._table_list[self._current_table_index])
self._tswitch_trig = pyo.TrigFunc(
self._rec_obj['trig'],
self._switchNextTable,
arg=[i for i in range(self._table_count)])
def __init__(self):
super().__init__()
self.wv1 = pyo.CosTable([(0, 0), (4060, 1), (8191, 0)])
self.wv2 = pyo.CosTable([(0, 0.00), (2074, 0.59), (4060, 1.00),
(8191, 0.00)])
self.wv3 = pyo.CosTable([(0, 0.00), (2074, 0.59), (4060, 1.00),
(6117, 0.60), (8191, 0.00)])
self.wv4 = pyo.CosTable([(0, 0.00), (2039, 0.29), (2039, 0.60),
(4060, 1.00), (6117, 0.60), (6117, 0.30),
(8191, 0.00)])
self.wv5 = pyo.CosTable([(0, 0.00), (2039, 0.29), (2039, 0.60),
(3255, 0.29), (4060, 1.00), (4900, 0.30),
(6117, 0.60), (6117, 0.30), (8191, 0.00)])
self.wv6 = pyo.CosTable([(0, 0.00), (769, 1.00), (2039, 0.29),
(2039, 0.60), (3255, 0.29), (4060, 1.00),
(4900, 0.30), (6117, 0.60), (6117, 0.30),
(7333, 1.00), (8191, 0.00)])
self.wv7 = pyo.CosTable([(0, 0.00), (769, 0.00), (769, 1.00),
(2039, 0.29), (2039, 0.60), (3255, 0.29),
(4060, 1.00), (4900, 0.30), (6117, 0.60),
(6117, 0.30), (7333, 1.00), (7333, 0.00),
(8191, 0.00)])
self.wv8 = pyo.CosTable([(0, 0.00), (769, 0.00), (769, 1.00),
(2039, 0.29), (2039, 0.60), (3255, 0.29),
(3255, 1.00), (4900, 1.00), (4900, 0.30),
(6117, 0.60), (6117, 0.30), (7333, 1.00),
(7333, 0.00), (8191, 0.00)])
self.synth = pyo.NewTable(8192 / 44100)
self.pointer = pyo.Sig(0)
self.morph = pyo.TableMorph(self.pointer, self.synth, [
self.wv1, self.wv2, self.wv3, self.wv4, self.wv5, self.wv6,
self.wv7, self.wv8
])
self.osc = pyo.Osc(self.synth, 440)
self.filter = pyo.Biquad(self.osc)
self.verb = pyo.WGVerb(self.filter).mix(2)
def __init__(self, input, buf_size=SAMPLE_RATE, buffer_count=2, overlap=0):
"""
Parameters
----------
input : PyoObject
Parent PyoObject
length : int
Number of samples per buffer
buffer_count : int
Number of buffers used to record (min 2)
overlap : int
Number of overlapping samples between adjacent buffers
"""
self.buf_size = buf_size
duration = (buf_size - overlap) / SAMPLE_RATE
self.last_thread = None
self.data_ready = pyo.Trig()
self.rec_triggers = []
self.tables = []
self.ends = []
self.overlap = overlap
self.overlap_buffer = np.zeros(self.overlap)
self.buffer_count = buffer_count
self.curr_buf = 0
self.playing = False
self.np_buffer = None
for i in range(buffer_count):
self.rec_triggers.append(pyo.Trig())
self.tables.append(pyo.NewTable(duration))
table_rec = pyo.TrigTableRec(input, self.rec_triggers[i],
self.tables[i])
self.ends.append(pyo.TrigFunc(table_rec['trig'], self._table_full))
self._base_objs = self.data_ready.getBaseObjects()
self._trig_objs = self._base_objs
import pyo s = pyo.Server().boot() s.start() #audioIn = pyo.Input(chnl=[0,1], mul=0.7) a = pyo.Noise(.25) fft = pyo.FFT(a, size=1024, overlaps=1, wintype=2) re = fft['real'] im = fft['imag'] bin = fft['bin'] mag = pyo.Sqrt(re * re + im * im) magTable = pyo.NewTable(1024) tablerec = pyo.TableRec(mag, magTable) refreshTrig = pyo.Select(bin, value=0) pyo.TrigFunc(refreshTrig, tablerec.play) value = pyo.TableIndex(magTable, bin) s.gui(locals())
def main():
'''Main method. Inits gpio, bridge, jack, and pyo. Then reads effects and starts handling gpio'''
# If GPIO is enabled, initialize the pins and GPIO module.
if GPIO_CAPABLE:
GPIO.setmode(GPIO.BCM)
GPIO.setwarnings(False)
GPIO.setup(button_pin, GPIO.IN, GPIO.PUD_UP)
GPIO.setup(23, GPIO.OUT)
gpio_controller = gpiocontrol.GpioController()
# Initialize the bridge to allow the app to accept connections.
bridge_conn = bridge.Bridge()
# Set up custom options for the sockets
s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM) #UDP SOCKET
sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM) #TCP SOCKET
s.setblocking(0)
sock.setblocking(0)
s.bind(('', 10000))
sock.bind(('', 10001))
jack_id = jackserver.start_jack_server()
# give the application time for JACK to boot.
time.sleep(5)
# JACK and Pyo set up procedures
pyo_server = start_pyo_server()
pyo_server.setJackAuto()
# Read input from the audio device on channel 0
# and apply the necessary effects from the config file
enabled_effects = chain_effects(pyo.Input(chnl=0), configparser.get_effects())
apply_effects( enabled_effects )
# Create necessary variables used by the GPIO controller module
record_table = []
audio_recorder = []
loop = []
record_table.append(pyo.NewTable(length=60, chnls=1, feedback=0.5))
audio_recorder.append(pyo.TableRec((enabled_effects[len(enabled_effects) - 1]), table=record_table[-1], fadetime=0.05))
already_recording = False
recording_time = 0
inactive_end_time = 0
signal.signal(signal.SIGINT, partial(signal_handler, jack_id, pyo_server))
while True:
# Executes GPIO and loop machine logic flow.
if GPIO_CAPABLE:
# Read the state of the button press.
BUTTON_STATE = gpio_controller.update_gpio()
# Perform actions dependent on the state of the button press.
if BUTTON_STATE == 'INACTIVE' or BUTTON_STATE == 'LOOPING':
inactive_end_time = time.time()
if BUTTON_STATE == 'RECORDING':
recording_time = time.time()
if not already_recording:
print("Recording audios for 5 segundos")
(audio_recorder[-1]).play()
already_recording = True
elif BUTTON_STATE == 'ACTIVATE_LOOP':
loop_len = recording_time - inactive_end_time
loop.append(
pyo.Looper(
table=record_table[-1],
dur=loop_len, xfade=0,
mul=1).out()
)
record_table.append(
pyo.NewTable(
length=60,
chnls=1,
feedback=0.5)
)
audio_recorder.append(
pyo.TableRec(
(enabled_effects[len(enabled_effects) - 1]),
table=record_table[-1],
fadetime=0.05)
)
print("ACTIVATING LOOP")
gpio_controller.set_state("LOOPING")
already_recording = False
elif BUTTON_STATE == 'CLEAR_LOOP':
loop = []
record_table = []
audio_recorder = []
record_table.append(
pyo.NewTable(
length=60,
chnls=1,
feedback=0.5)
)
audio_recorder.append(
pyo.TableRec(
(enabled_effects[len(enabled_effects) - 1]),
table=record_table[-1],
fadetime=0.05)
)
gpio_controller.set_state("INACTIVE")
# See if we got a message from the frontend application
res = bridge_conn.backend(s,sock)
if res:
print(res)
if 'UPDATEPORT' == res[0]:
# There was a request to update the ports. Kill the
# JACK server and restart it with the new ports.
print("Request to update ports")
pyo_server.shutdown()
jackserver.kill_jack_server(jack_id)
time.sleep(2)
jack_id = jackserver.start_jack_server(jackserver.filter_port_selection(res[1]), jackserver.filter_port_selection(res[2]))
time.sleep(2)
pyo_server.reinit(**PYO_INIT_SETTINGS)
pyo_server.boot()
pyo_server.start()
enabled_effects[-1].stop()
enabled_effects = chain_effects(pyo.Input(chnl=0), configparser.get_effects())
apply_effects( enabled_effects )
time.sleep(0.0001)
