def generate_wave(message, wpm=WPM, framerate=FRAMERATE, skip_frame=0, amplitude=AMPLITUDE, frequency=FREQUENCY, word_ref=WORD):
"""
Generate binary Morse code of message at a given code speed wpm and framerate
Parameters
----------
word : string
wpm : int or float - word per minute
framerate : nb of samples / seconds
word_spaced : bool - calculate with spaces between 2 words (default is False)
skip_frame : int - nb of frame to skip
Returns
-------
value : float
"""
lst_bin = _encode_binary(message)
if amplitude > 1.0:
amplitude = 1.0
if amplitude < 0.0:
amplitude = 0.0
seconds_per_dot = _seconds_per_dot(word_ref) # =1.2
for i in count(skip_frame):
bit = morse_bin(i=i, lst_bin=lst_bin, wpm=wpm, framerate=framerate, default_value=0.0, seconds_per_dot=seconds_per_dot)
sine = sine_wave(i=i, frequency=frequency, framerate=framerate, amplitude=amplitude)
yield sine * bit
def preview_wave(message,
wpm=WPM,
frequency=FREQUENCY,
framerate=FRAMERATE,
amplitude=AMPLITUDE,
word_ref=WORD):
"""
Listen (preview) wave
sounddevice is required http://python-sounddevice.readthedocs.org/
$ pip install sounddevice
"""
samp_nb = samples_nb(message=message,
wpm=wpm,
framerate=framerate,
word_spaced=False)
import sounddevice as sd
lst_bin = _encode_binary(message)
amplitude = _limit_value(amplitude)
seconds_per_dot = _seconds_per_dot(word_ref) # 1.2
a = [
calculate_wave(i, lst_bin, wpm, frequency, framerate, amplitude,
seconds_per_dot) for i in range(samp_nb)
]
sd.play(a, framerate, blocking=True)
def preview_wave(message, wpm=WPM, frequency=FREQUENCY, framerate=FRAMERATE, amplitude=AMPLITUDE, word_ref=WORD):
"""
Listen (preview) wave
sounddevice is required http://python-sounddevice.readthedocs.org/
$ pip install sounddevice
"""
samp_nb = samples_nb(message=message, wpm=wpm, framerate=framerate, word_spaced=False)
import sounddevice as sd
lst_bin = _encode_binary(message)
amplitude = _limit_value(amplitude)
seconds_per_dot = _seconds_per_dot(word_ref) # 1.2
a = [calculate_wave(i, lst_bin, wpm, frequency, framerate, amplitude, seconds_per_dot)
for i in range(samp_nb)]
sd.play(a, framerate, blocking=True)
def generate_wave(message,
wpm=WPM,
framerate=FRAMERATE,
skip_frame=0,
amplitude=AMPLITUDE,
frequency=FREQUENCY,
word_ref=WORD):
"""
Generate binary Morse code of message at a given code speed wpm and framerate
Parameters
----------
word : string
wpm : int or float - word per minute
framerate : nb of samples / seconds
word_spaced : bool - calculate with spaces between 2 words (default is False)
skip_frame : int - nb of frame to skip
Returns
-------
value : float
"""
lst_bin = _encode_binary(message)
if amplitude > 1.0:
amplitude = 1.0
if amplitude < 0.0:
amplitude = 0.0
seconds_per_dot = _seconds_per_dot(word_ref) # =1.2
for i in count(skip_frame):
bit = morse_bin(i=i,
lst_bin=lst_bin,
wpm=wpm,
framerate=framerate,
default_value=0.0,
seconds_per_dot=seconds_per_dot)
sine = sine_wave(i=i,
frequency=frequency,
framerate=framerate,
amplitude=amplitude)
yield sine * bit