| import numpy as np | |
| from scipy.io.wavfile import write | |
| # 参数 | |
| duration = 1.0 # 秒 | |
| sample_rate = 16000 # 采样率（Hz） | |
| frequency = 440.0 # 正弦波频率（Hz） | |
| # 时间轴 | |
| t = np.linspace(0, duration, int(sample_rate * duration), endpoint=False) | |
| # 生成正弦波 | |
| waveform = 0.5 * np.sin(2 * np.pi * frequency * t) | |
| # 转换为16位PCM格式 | |
| waveform_int16 = np.int16(waveform * 32767) | |
| # 保存为WAV文件 | |
| write("output.wav", sample_rate, waveform_int16) | |