from signal_processing import detect_frequency
from decoder import Decoder
import sys
fs = 44100
CHUNKSIZE = 128
SENSITIVITY = 1500
PACE = .05
p = pyaudio.PyAudio()
stream = p.open(format=pyaudio.paInt16,
channels=1,
rate=fs,
input=True,
frames_per_buffer=CHUNKSIZE)
d = Decoder(PACE, SENSITIVITY, sys.stdout, .003)
timestamps = []
start_time = time()
while time() - start_time < 100:
timestamps.append(time())
data = stream.read(CHUNKSIZE)
np_data = np.fromstring(data, dtype=np.int16)
amplitude = detect_frequency(np_data, 880.0, 44100)
d.add_frame(amplitude, timestamps[-1])
#print('amplitude: {}'.format(amplitude))
deltas = [timestamps[i] - timestamps[i - 1] for i in range(1, len(timestamps))]
avg_delta = sum(deltas) / len(deltas)
print('Average Delta: {}'.format(avg_delta))
