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adjusted morse module

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This commit is contained in:
DJ2LS 2023-10-29 23:10:12 +01:00
parent b2a068dbfe
commit 4a47c3f58c
3 changed files with 26 additions and 37 deletions
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42
modem/cw.py
View file

@ -6,8 +6,10 @@ import numpy as np
"""
class MorseCodePlayer:
def __init__(self, wpm=150, f=1500, fs=48000):
def __init__(self, wpm=25, f=1500, fs=48000):
self.wpm = wpm
self.f0 = f
self.fs = fs
@ -39,28 +41,26 @@ class MorseCodePlayer:
signal = np.array([], dtype=np.int16)
for char in morse:
if char == '.':
duration = int(self.dot_duration * self.fs)
s = np.sin(2 * np.pi * self.f0 * np.arange(duration) / self.fs)
signal = np.concatenate((signal, s * 32767))
pause_duration = int(self.pause_duration * self.fs)
signal = np.concatenate((signal, np.zeros(pause_duration, dtype=np.int16)))
duration = self.dot_duration # Using class-defined duration
t = np.linspace(0, duration, int(self.fs * duration), endpoint=False)
s = 0.5 * np.sin(2 * np.pi * self.f0 * t)
signal = np.concatenate((signal, np.int16(s * 32767)))
pause_samples = int(self.pause_duration * self.fs)
signal = np.concatenate((signal, np.zeros(pause_samples, dtype=np.int16)))
elif char == '-':
duration = int(self.dash_duration * self.fs)
s = np.sin(2 * np.pi * self.f0 * np.arange(duration) / self.fs)
signal = np.concatenate((signal, s * 32767))
pause_duration = int(self.pause_duration * self.fs)
signal = np.concatenate((signal, np.zeros(pause_duration, dtype=np.int16)))
duration = self.dash_duration # Using class-defined duration
t = np.linspace(0, duration, int(self.fs * duration), endpoint=False)
s = 0.5 * np.sin(2 * np.pi * self.f0 * t)
signal = np.concatenate((signal, np.int16(s * 32767)))
pause_samples = int(self.pause_duration * self.fs)
signal = np.concatenate((signal, np.zeros(pause_samples, dtype=np.int16)))
elif char == ' ':
pause_duration = int(self.word_pause_duration * self.fs)
signal = np.concatenate((signal, np.zeros(pause_duration, dtype=np.int16)))
pause_duration = int(self.pause_duration * self.fs)
signal = np.concatenate((signal, np.zeros(pause_duration, dtype=np.int16)))
pause_duration = int(self.word_pause_duration * self.fs)
#signal = np.concatenate((signal, np.zeros(pause_duration, dtype=np.int16)))
# Convert the signal to mono (single-channel)
#signal = signal.reshape(-1, 1)
pause_samples = int(self.word_pause_duration * self.fs)
signal = np.concatenate((signal, np.zeros(pause_samples, dtype=np.int16)))
pause_samples = int(self.pause_duration * self.fs)
signal = np.concatenate((signal, np.zeros(pause_samples, dtype=np.int16)))
return signal

4
modem/data_handler.py
View file

@ -2856,9 +2856,7 @@ class DATA:
self.enqueue_frame_for_tx([cq_frame], c2_mode=FREEDV_MODE.fsk_ldpc_0.value)
else:
self.enqueue_frame_for_tx([cq_frame], c2_mode=FREEDV_MODE.sig0.value, copies=1, repeat_delay=0)
# FIXME Remove or change this in later versions for full CW support
# Modem.transmitting = True
# modem.MODEM_TRANSMIT_QUEUE.put(["morse", 1, 0, "123"])
#modem.MODEM_TRANSMIT_QUEUE.put(["morse", 1, 0, self.mycallsign])
def received_cq(self, data_in: bytes) -> None:
"""

17
modem/modem.py
View file

@ -29,7 +29,7 @@ import structlog
import ujson as json
import tci
# FIXME used for def transmit_morse
# import cw
import cw
from queues import DATA_QUEUE_RECEIVED, MODEM_RECEIVED_QUEUE, MODEM_TRANSMIT_QUEUE, RIGCTLD_COMMAND_QUEUE, \
AUDIO_RECEIVED_QUEUE, AUDIO_TRANSMIT_QUEUE, MESH_RECEIVED_QUEUE
@ -745,18 +745,7 @@ class RF:
)
start_of_transmission = time.time()
txbuffer = cw.MorseCodePlayer().text_to_signal("DJ2LS-1")
print(txbuffer)
print(type(txbuffer))
x = np.frombuffer(txbuffer, dtype=np.int16)
print(type(x))
txbuffer_out = x
print(txbuffer_out)
#if not HamlibParam.hamlib_radiocontrol in ["tci"]:
# txbuffer_out = self.resampler.resample8_to_48(x)
#else:
# txbuffer_out = x
txbuffer_out = cw.MorseCodePlayer().text_to_signal("DJ2LS-1")
self.mod_out_locked = True
self.enqueue_modulation(txbuffer_out)
@ -808,6 +797,8 @@ class RF:
self.log.debug("[MDM] ON AIR TIME", time=transmission_time)
def enqueue_modulation(self, txbuffer_out):
chunk_length = self.AUDIO_FRAMES_PER_BUFFER_TX # 4800
chunk = [
txbuffer_out[i: i + chunk_length]