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 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 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
import pianohat
import time
from pygame import mixer
def handle_note(channel, pressed):
if pressed:
my_sounds[channel].play(loops=0)
print("You pressed key {}".format(channel))
else:
print("You released key {}".format(channel))
mixer.init(22050, -16, 2, 512)
mixer.set_num_channels(13)
my_sound_files = [
"/home/pi/moo.wav", "/home/pi/dog.wav", "/home/pi/dog.wav",
"/home/pi/moo.wav", "/home/pi/dog.wav", "/home/pi/moo.wav",
"/home/pi/dog.wav", "/home/pi/moo.wav", "/home/pi/dog.wav",
"/home/pi/moo.wav", "/home/pi/dog.wav", "/home/pi/moo.wav",
"/home/pi/dog.wav"
]
my_sounds = [mixer.Sound(sound_file) for sound_file in my_sound_files]
pianohat.on_note(handle_note)
while True:
time.sleep(0.001)
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()
import pianohat, sys
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()
pianohat.auto_leds(False)
for x in range(16): # Flash all the lights to celebrate
pianohat.set_led(x, True)
time.sleep(0.05)
for x in range(16): # Them turn them off
pianohat.set_led(x,False)
pianohat.auto_leds(True)
correct = True
else:
print('wrong, try again')
def play(note): # Play a note from the dictionary
pygame.mixer.Sound(NOTES[note][1]).play(loops=0)
time.sleep(1)
pianohat.on_note(handle_note) # Set keys to use our handler
while True:
print('Here comes a C')
time.sleep(1)
play('0') # Play a C
time.sleep(2)
correct = False
print('Now identify this note')
time.sleep(2)
note = random.choice(list(NOTES)) # Pick a random note
play(note)
print('press the key for the note you heard')
count = 6 # Set countdown timer
while count > 0 and correct == False:
time.sleep(1)
print("Film 3")
music("seaside.mp3")
player("Blackpool_Issue_Title_Pathe_Pictorial_Goes_To_The_Seaside.mp4")
elif ch == 5:
print("Film 4")
music("seaside.mp3")
player("Blackpool_Promenade_1900.mp4")
elif ch == 7:
print("Film 5")
music("seaside.mp3")
player("Camera_Takes_Easter_Holiday_AKA_Blackpool_Beach.mp4")
elif ch == 9:
print("Film 6")
music("seaside.mp3")
player("Extra_!_Blackpool_Illuminations.mp4")
elif ch == 11:
print("Film 7")
music("seaside.mp3")
player("Holiday_News_Aka_Holiday_Scenes_-_Blackpool.mp4")
elif ch == 12:
print("Film 8")
music("seaside.mp3")
player("The_Pageant_Of_Progress.mp4")
else:
print("Press a key on the Wurlitzer")
pianohat.on_note(handle_touch)
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()
""" 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:
""" Block to keep this program running. """
while True:
