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morseAudioTransmitter.py

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+#!/usr/bin/python
+
+# created under Python 2.7
+
+# the sound output works only on a Windows system
+import winsound
+import time
+
+# morse code dictionary
+morseCode = {
+			'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': '----.',
+			}
+#print chr(250)*3 + '-'*3 + chr(250)*3  # chr(250) is more pretty than '.'
+
+# this function will output a list of words in morse code
+def textencoder(textinput):
+	words = textinput.split()
+	encoded = []
+	for w in words:
+		characters = list(w)
+		morse = [morseCode[c.upper()] if c.upper() in morseCode.keys() else 'E' for c in characters]
+		encoded.append(' '.join(morse))
+	return(encoded)
+
+# this function provides audio output for a list of words in morse code
+def soundtransmitter(morsecode):
+	for w in morsecode:
+		characters = list(w)
+		for c in characters:
+			if c == '-':
+				winsound.Beep(800, 400) # frequency, duration
+				time.sleep(0.2)
+			elif c == '.':
+				winsound.Beep(800, 200)
+				time.sleep(0.2)
+			elif c == ' ':
+				time.sleep(0.4)
+		time.sleep(.6)
+
+if __name__ == "__main__":
+	print '*'*67
+	print 'WELCOME, I will translate your text into a morse code audio signal.'
+	print '*'*67
+
+	print '\nYou can type your text and press ENTER, use ctrl+c to quit.\n'
+
+	while True:
+		currenttext = raw_input("Text: ")
+		morsecode = textencoder(currenttext)
+		print(morsecode)
+		soundtransmitter(morsecode)