RTTYEncoder_CN.py

import numpy as np
import pyaudio

# RTTY参数
BAUD_RATE = 45.45  # 比特速率
SAMPLE_RATE = 44100  # 采样率
MARK_PHASE = 0  # 标记相位
SPACE_PHASE = np.pi  # 空格相位
BITS_PER_CHAR = 7  # 每个字符的比特数

# 提示用户输入MARK_FREQ和SPACE_FREQ
MARK_FREQ = float(input("请输入标记频率（Hz）："))
SPACE_FREQ = float(input("请输入空格频率（Hz）："))
while True :
    # 文本输入
    text = input("请输入要转换的文本：")

    # RTTY编码函数
    def rtty_encode(text):
        # ASCII转二进制
        binary = ''.join('{:07b}'.format(ord(c)) for c in text)
        # RTTY编码
        rtty = np.array([])
        for bit in binary:
            if bit == '0':
                rtty = np.append(rtty, np.sin(2 * np.pi * MARK_FREQ * np.arange(0, 1 / BAUD_RATE, 1 / SAMPLE_RATE) + MARK_PHASE))
            else:
                rtty = np.append(rtty, np.sin(2 * np.pi * SPACE_FREQ * np.arange(0, 1 / BAUD_RATE, 1 / SAMPLE_RATE) + SPACE_PHASE))
        return rtty

    # RTTY信号生成
    signal = rtty_encode(text)

    # 输出到声卡
    p = pyaudio.PyAudio()
    stream = p.open(format=pyaudio.paFloat32, channels=1, rate=SAMPLE_RATE, output=True)
    stream.write(signal.astype(np.float32).tobytes())
    stream.stop_stream()
    stream.close()
    p.terminate()