def register(self):
"""Register the callback methods with pianohat
"""
if not pianohat:
return
startup_lights(pygame.display.update)
pianohat.on_note(self.handle_note)
pianohat.on_octave_up(self.handle_octave_up)
pianohat.on_octave_down(self.handle_octave_down)
pianohat.on_instrument(self.handle_instrument)
pianohat.auto_leds(True)
def __init__(self, container, sound_index):
super(Piano, self).__init__(sound_index)
self.container = container
pianohat.on_note(self.handle_note)
pianohat.on_octave_up(self.handle_octave_up)
pianohat.on_octave_down(self.handle_octave_down)
pianohat.on_instrument(self.handle_instrument)
pianohat.auto_leds(True)
def setActive (self, state):
if debug:
print(self.name, "setActive", state)
#
# use default implementation to start up SPI
#
adapter.adapters.Adapter.setActive(self, state);
self.bool_auto_leds = self.isTrue( self.parameters['auto_leds'] )
pianohat.auto_leds( self.bool_auto_leds )
pianohat.on_note(self.handle_touch)
pianohat.on_octave_up(self.handle_touch)
pianohat.on_octave_down(self.handle_touch)
pianohat.on_instrument(self.handle_touch)
def setActive (self, state):
if debug:
print(self.name, "setActive", state)
#
# use default implementation to start up SPI
#
adapter.adapters.Adapter.setActive(self, state);
self.bool_auto_leds = self.isTrue( self.parameters['auto_leds'] )
pianohat.auto_leds( self.bool_auto_leds )
pianohat.on_note(self.handle_touch)
pianohat.on_octave_up(self.handle_touch)
pianohat.on_octave_down(self.handle_touch)
pianohat.on_instrument(self.handle_touch)
def do_processing(input_signal):
global max_amplitude_input
global is_first_sample
global max_amplitude_output
# Listen to controller events
note = pianohat.on_note(controller)
oct_up = pianohat.on_octave_up(switch_up)
oct_down = pianohat.on_octave_down(switch_down)
oct_inst = pianohat.on_instrument(effect_on)
# Convert to native array using the 'array' module for faster processing
input_signal = array('f', input_signal)
# Apply audio effects that have been selected by the user
if effects[0]['effect_on'] is True:
input_signal = amp_convolution(input_signal, hanning)
f1.write('Amp Convolution : on')
f1.write('\n')
# Add little amounts to the effect amount to prevent 0 division
if effects[1]['effect_on'] is True:
amount = effects[1]['effect_amount']
input_signal = mod_effect(input_signal, amount + 0.01)
f1.write('Modulation : on')
f1.write('\n')
if effects[2]['effect_on'] is True:
amount = effects[2]['effect_amount']
input_signal = hard_clipping(input_signal, float(amount) / 100 + 0.005)
f1.write('Distortion : on')
f1.write('\n')
if effects[3]['effect_on'] is True:
amount = effects[3]['effect_amount']
input_signal = chorus_effect(input_signal, 10, amount + 0.01)
f1.write('Chorus : on')
f1.write('\n')
# Convert back to numpy array
input_signal = np.array(input_signal)
# Normalise output using a global maximum
local_max = np.max(np.abs(input_signal))
if local_max > max_amplitude_output:
max_amplitude_output = local_max
input_signal = np.float32(input_signal / float(local_max))
return input_signal
if channel < len(samples) and pressed:
print('Playing Sound: {}'.format(files[channel]))
samples[channel].play(loops=0)
next()
def handle_instrument(channel, pressed):
pass
def handle_octave_up(channel, pressed):
pass
def handle_octave_down(channel, pressed):
pass
for x in range(16):
pianohat.set_led(x, False)
pianohat.on_note(handle_note)
pianohat.on_octave_up(handle_octave_up)
pianohat.on_octave_down(handle_octave_down)
pianohat.on_instrument(handle_instrument)
pianohat.set_led(current_note(), True)
signal.pause()
key_names = [
"C_lo", "C#", "D", "D#", "E", "F", "F#", "G", "G#", "A", "A#", "B", "C_hi",
"Octave_down", "Octave_up", "Instrument"
]
pianohat.auto_leds(True)
def handler(key, evt):
if not evt: # key release
print("PianoHat key: " + str(key) + "; name: " + key_names[key])
pianohat.on_note(handler)
pianohat.on_octave_up(handler)
pianohat.on_octave_down(handler)
pianohat.on_instrument(handler)
line = sys.stdin.readline()
while line:
line = line.strip()
if not line:
pass # ignore blank input
elif line.startswith("hi"):
print("Hello from PianoHat!")
else:
print("echo: " + line)
#
line = sys.stdin.readline()
f = open(".pianohash", "w+")
f.write(hashed)
f.close()
print "Password has been saved."
# Launch procedure to encode text....
encode_text()
def handle_octave_up(channel, pressed):
global octave
if pressed and octave < octaves:
octave += 1
print('Selected Octave: {}'.format(octave))
def handle_octave_down(channel, pressed):
global octave
if pressed and octave > 0:
octave -= 1
print('Selected Octave: {}'.format(octave))
pianohat.on_note(handle_note)
pianohat.on_octave_up(handle_octave_up)
pianohat.on_octave_down(handle_octave_down)
pianohat.on_instrument(confirm_password)
load_samples(patches[patch_index])
signal.pause()
print("Initializing subsystem...")
pygame.mixer.pre_init(SAMPLERATE, -BITRATE, 4, 256)
pygame.mixer.init()
pygame.mixer.set_num_channels(32)
print("Generating samples...")
for f in [
261.626, 277.183, 293.665, 311.127, 329.628, 349.228, 369.994, 391.995,
415.305, 440.000, 466.164, 493.883, 523.251
]:
notes['sine'] += [
generate_sample(f, volume=volume['sine'], wavetype=wave_sine)
]
notes['saw'] += [
generate_sample(f, volume=volume['saw'], wavetype=wave_saw)
]
notes['square'] += [
generate_sample(f, volume=volume['square'], wavetype=wave_square)
]
pianohat.auto_leds(False)
pianohat.on_note(play_sample)
pianohat.on_instrument(handle_instrument)
pianohat.on_octave_up(handle_instrument)
pianohat.on_octave_down(handle_instrument)
update_leds()
print("Now, make beautiful music...")
signal.pause()
277.183,
293.665,
311.127,
329.628,
349.228,
369.994,
391.995,
415.305,
440.000,
466.164,
493.883,
523.251
]:
notes['sine'] += [generate_sample(f, volume=volume['sine'], wavetype=wave_sine)]
notes['saw'] += [generate_sample(f, volume=volume['saw'], wavetype=wave_saw)]
notes['square'] += [generate_sample(f, volume=volume['square'], wavetype=wave_square)]
pianohat.auto_leds(False)
pianohat.on_note(play_sample)
pianohat.on_instrument(handle_instrument)
pianohat.on_octave_up(handle_instrument)
pianohat.on_octave_down(handle_instrument)
update_leds()
print("Now, make beautiful music...")
signal.pause()
#!/usr/bin/env python
import signal
import pianohat
print("""
This simple example shows you how to make Piano HAT keypresses do something useful.
You should see details of each press appear below as you touch Piano HAT's keys
Press CTRL+C to exit.
""")
pianohat.auto_leds(True)
def handle_touch(ch, evt):
print(ch, evt)
pianohat.on_note(handle_touch)
pianohat.on_octave_up(handle_touch)
pianohat.on_octave_down(handle_touch)
pianohat.on_instrument(handle_touch)
signal.pause()
#!/usr/bin/env python
print("""
This simple example shows you how to make Piano HAT keypresses do something useful.
You should see details of each press appear below as you touch Piano HAT's keys
Press CTRL+C to exit.
""")
import pianohat
import signal
pianohat.auto_leds(True)
def handle_touch(ch, evt):
print(ch, evt)
pianohat.on_note(handle_touch)
pianohat.on_octave_up(handle_touch)
pianohat.on_octave_down(handle_touch)
pianohat.on_instrument(handle_touch)
signal.pause()
pianohat.set_led(13, True)
pianohat.set_led(14, False)
if (ch == 14):
bank = 1
pianohat.set_led(13, False)
pianohat.set_led(14, True)
# toggle record on off, off also erases
if (ch == 15):
if (rec == True):
rec = False
recordings = [[-1], [-1], [-1], [-1], [-1], [-1], [-1], [-1]]
pianohat.set_led(15, False)
else:
rec = True
pianohat.set_led(15, True)
# create sound objects for all .wav files
sounds.append(settings.createSoundObjects(settings.files1))
sounds.append(settings.createSoundObjects(settings.files2))
# piano key handlers
pianohat.on_octave_up(changeSettings)
pianohat.on_octave_down(changeSettings)
pianohat.on_instrument(changeSettings)
pianohat.on_note(handleNote)
# start the led animation, also causes the app to keep listening for key presses
nextStep()
def leds_off() -> None:
""" Turn off all LEDs on the Piano Hat """
for i in range(15):
pianohat.set_led(i, False)
pygame.init()
pygame.mixer.init()
pygame.mixer.music.set_volume(volume)
leds_off()
pianohat.auto_leds(enable=False)
pianohat.on_octave_down(volume_down)
pianohat.on_octave_up(volume_up)
pianohat.on_instrument(pause_music)
pianohat.on_note(play_song)
def shutdown() -> None:
""" Things we need to do to gracefully shut this program down. """
leds_off()
sys.exit(0)
def handle_sigterm(signal, frame) -> None:
shutdown()
def main_loop() -> None: