指定在Python中录制音频的最小触发频率

import pyaudio
import numpy as np

# 设置录制参数
sample_rate = 44100  # 采样率
chunk_size = int(sample_rate / 10)  # 每次读取的音频帧大小
min_trigger_frequency = 10  # 最小触发频率

# 初始化PyAudio
pa = pyaudio.PyAudio()

# 打开音频流
stream = pa.open(format=pyaudio.paInt16,
                 channels=1,
                 rate=sample_rate,
                 input=True,
                 frames_per_buffer=chunk_size)

# 录制音频
while True:
    # 读取音频数据
    data = np.frombuffer(stream.read(chunk_size), dtype=np.int16)
    
    # 计算音频的能量
    energy = np.sum(np.abs(data))
    
    # 判断能量是否超过触发阈值
    if energy > min_trigger_frequency:
        # 触发了录制动作，执行相应的操作
        print("Recording...")
        # 进行录制操作
        
# 关闭音频流
stream.stop_stream()
stream.close()

# 终止PyAudio
pa.terminate()