dialer.py

# Copyright 2017 Zulin Liu liuzulin@bu.edu
# Copyright 2017 Jasmine siminz@bu.edu
# Copyright 2017 James Fallacara jafallac@bu.edu
import numpy as np
import scipy.io.wavfile as wavfile
def dialer(file_name,frame_rate,phone,tone_time):
	tonesig =[]
	#some para I want: fs , f, npoint, t, tone
	t = np.linspace(0,tone_time,frame_rate*tone_time,endpoint = False)
	toneeach = {'0':[941,1336],'1':[697,1209],'2':[697,1336],'3':[697,1477],'4':[770,1209],'5':[770,1336],'6':[770,1477],'7':[852,1209],'8':[852,1336],'9':[852,1477]}

	for tone in phone:
		f = toneeach[tone]
		tonesig.extend(np.sin(2*np.pi*f[0]*t)+np.sin(2*np.pi*f[1]*t))
	tonesig = np.array(np.float32(tonesig))
	#print(len(tonesig))
	#print(tonesig)

	wavfile.write(file_name, frame_rate, tonesig)


def main():
	dialer('papapa',4000,'321',0.2)

if __name__ == '__main__':
	main()