def create_window():
win = QtGui.QMainWindow()
win.resize(1000,600)
win.setWindowTitle('HypnoPy')
pg.setConfigOptions(antialias=True) # Enable antialiasing for prettier plots
plot_widget = create_plot_widget('Spiral')
sidebar_width = 200
slider_widget1 = create_slider_widget(label='SPL threshold',
unit='dB',
min_value=-50,
max_value=50,
init_value=0,
step=1,
connect=_update_SPL_THRESHOLD,
max_width=sidebar_width)
slider_widget2 = create_slider_widget(label='Window size',
unit='',
min_value=256,
max_value=len(get_buffer()),
init_value=len(get_buffer()),
step=2,
connect=_update_WINDOW_SIZE,
max_width=sidebar_width)
sidebar = create_sidebar(sidebar_width, slider_widget1, slider_widget2)
layout = pg.LayoutWidget()
layout.addWidget(plot_widget)
layout.addWidget(sidebar)
layout.show()
return layout, plot_widget
def button_released():
global time_marker_start, time_marker_size
button_press_start = time.time()
print("* saving buffer")
snapshot = audio.get_buffer()
time_marker_start = 1
time_marker_size = 6
threading.Thread(target=theaterChaseAnimation).start()
threading.Thread(target=do_button_press_actions, args=(snapshot,)).start()
def update(blobs, buf=None):
if buf is None:
buf = get_buffer()
buf = list(buf)[-get_WINDOW_SIZE():]
densities = sound_power_densities(buf)
ranking = sorted([(spd, i) for i, spd in enumerate(densities)],
reverse=True)[:len(blobs)]
frequencies = np.fft.rfftfreq(len(buf), 1./RATE)
for j, el in enumerate(ranking):
spd, i = el
if display(spd):
freq = frequencies[i]
blob = blob_coordinates(freq, spd, min_intensity=_SPL_THRESHOLD, max_intensity=96.)
blobs[j].setLine(*blob)
else:
blobs[j].setLine(0, 0, 0, 0)
def launch_gui(blob_count=100, freq_test=None):
# pyqtgraph initialization
app = QtGui.QApplication([])
layout, plot_widget = create_window()
blobs = [QtGui.QGraphicsLineItem() for _ in xrange(blob_count)]
for blob in blobs:
plot_widget.addItem(blob)
blob.setPen(pg.mkPen(color=(255, 255, 128)))
draw_spiral(plot_widget)
if freq_test is None:
update_fun = lambda : update(blobs)
else:
buf = make_pure_tone(freq_test, len(get_buffer()), RATE)
update_fun = lambda : update(blobs, buf)
timer = QtCore.QTimer()
timer.timeout.connect(update_fun)
timer.start(20)
QtGui.QApplication.instance().exec_()
import numpy as np
from audio import RATE, get_buffer
from fourier import sound_power_densities, make_pure_tone
from note_utils import BASE_FREQUENCIES, get_base_frequency_and_power_of_two, get_frequency
from pyqtgraph.Qt import QtGui, QtCore
import pyqtgraph as pg
_SPL_THRESHOLD = 0. # we do not display frequencies whose SPL is below this limit
_WINDOW_SIZE = len(get_buffer())
def _update_SPL_THRESHOLD(i):
global _SPL_THRESHOLD
_SPL_THRESHOLD = i
def display(intensity):
return intensity > _SPL_THRESHOLD
def _update_WINDOW_SIZE(i):
global _WINDOW_SIZE
_WINDOW_SIZE = i
def get_WINDOW_SIZE():
return _WINDOW_SIZE
def get_polar_coordinates(freq, r_scale=1.):
"""Returns a tuple (r, theta) representing polar coordinates of a frequency `freq`.
The twelve notes of the Pythagorician scale can be displayed on a 2D spiral, with
differences in angles proportional to the differences in frequencies.
Higher octaves of a fundamental note N are represented with the same angle theta and a
def main():
global time_marker_start
if os.geteuid() != 0:
exit("You need to have root privileges to run this script: rerun it using 'sudo'. Exiting.")
if "BASE_ID" not in os.environ:
sys.stderr.write("Error: unknown base station ID\n")
sys.exit(1)
setproctitle("recap")
GPIO.output(UNDO_LED_PIN, False)
# Startup animation
strip.begin()
theaterChaseAnimation()
#threading.Thread(target=bootupAnimation).start()
th = threading.Thread(target=networking.start_device_discovery)
th.daemon = True
th.start()
th = threading.Thread(target=server.start_server)
th.daemon = True
th.start()
th = threading.Thread(target=audio.start_recording)
th.daemon = True
th.start()
encoder = gaugette.rotary_encoder.RotaryEncoder.Worker(ROTARY_A_PIN, ROTARY_B_PIN)
encoder.start()
start = time.time()
last_button_press = 0
try:
while True:
if not GPIO.input(MAIN_BUTTON_PIN) and time.time() - last_button_press > 0.2:
print("* button pressed")
last_button_press = time.time()
snapshot = audio.get_buffer()
threading.Thread(target=theaterChaseAnimation).start()
threading.Thread(target=do_button_press_actions, args=(snapshot,)).start()
time.sleep(0.1)
#delta = encoder.get_delta()
#if delta != 0 and GPIO.input(MAIN_BUTTON_PIN):
# if time_marker_start + time_marker_size + delta > LED_COUNT:
# time_marker_start = LED_COUNT - time_marker_size
# elif time_marker_start + delta < 0:
# time_marker_start = 0
# else:
# time_marker_start += delta
# updateStrip()
except (KeyboardInterrupt, SystemExit):
raise
except Exception as e:
sys.stderr.write(str(e))
stream.stop_stream()
stream.close()
