Created
January 13, 2019 17:08
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# 모스 코드를 음파로 변환합니다. | |
# 제작자 : kcal2845 | |
# 구동 환경 : python 3.6(yaudio와 numpy 모듈 필요) | |
import pyaudio | |
import numpy as np | |
from time import sleep | |
def sin_wave(f,d): # f = 주파수, d = 실행 길이 | |
a = 1 # 진폭 | |
n = np.arange(fs*d) # n(0,1,2... fs*d) | |
return a*np.sin(2*np.pi*f/fs*n) # 샘플링 | |
def translate(word,f): | |
morse_word = '' | |
for i in word: | |
if i == ' ': | |
morse_word += ' ' | |
elif i == '-' or i == '.': | |
morse_word += i | |
else: | |
morse_word += morse_dict[i] | |
morse_word += ' ' | |
print(morse_word) | |
for i in morse_word: | |
if i == ' ': | |
sleep(0.05) | |
elif i == '.': | |
samples = sin_wave(f,0.2) | |
stream.write(samples.astype(np.float32)) | |
sleep(0.1) | |
elif i == '-': | |
samples = sin_wave(f,0.6) | |
stream.write(samples.astype(np.float32)) | |
sleep(0.1) | |
morse_dict = { 'a': '.-', 'b': '-...', 'c': '-.-.', 'd': '-..', 'e': '.', 'f': '..-.', | |
'g': '--.', 'h': '....', 'i': '..', 'j': '.---', 'k': '-.-', 'l': '.-..', | |
'm': '--', 'n': '-.', 'o': '---', 'p': '.--.', 'q': '--.-', 'r': '.-.', | |
's': '...', 't': '-', 'u': '..-', 'v': '...-', 'w': '.--', 'x': '-..-', | |
'y': '-.--', 'z': '--..', '0': '-----', '1': '.----', '2': '..---', '3': '...--', | |
'4': '....-', '5': '.....', '6': '-....', '7': '--...', '8': '---..', '9': '----.' | |
} | |
fs = 44100 # 샘플링 주파수 | |
p = pyaudio.PyAudio() | |
# for paFloat32 sample values must be in range [-1.0, 1.0] | |
stream = p.open(format=pyaudio.paFloat32, | |
channels=1, | |
rate=fs, | |
output=True) | |
print('알파벳을 입력하면 모스부호로 변환합니다.') | |
print('나가려면 exit;를 입력하세요.') | |
while True: | |
words = input() | |
if words == 'exit;': | |
break | |
translate(words,880) | |
sleep(0.1) | |
stream.stop_stream() | |
stream.close() | |
p.terminate() |
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