使用PyAudio和NumPy同时录制和播放音频

import pyaudio
import numpy as np

# 音频参数
FORMAT = pyaudio.paInt16
CHANNELS = 1
RATE = 44100
CHUNK = 1024

p = pyaudio.PyAudio()

def record_callback(in_data, frame_count, time_info, status):
    # 将音频数据转换为NumPy数组
    audio_data = np.frombuffer(in_data, dtype=np.int16)
    
    # 在此处添加音频处理逻辑
    
    return (in_data, pyaudio.paContinue)

def play_callback(in_data, frame_count, time_info, status):
    # 在此处添加音频处理逻辑
    
    # 从NumPy数组中获取音频数据
    audio_data = np.zeros(frame_count, dtype=np.int16)
    out_data = audio_data.tobytes()
    
    return (out_data, pyaudio.paContinue)

# 打开录制音频的音频流
stream_in = p.open(format=FORMAT,
                   channels=CHANNELS,
                   rate=RATE,
                   input=True,
                   frames_per_buffer=CHUNK,
                   stream_callback=record_callback)

# 打开播放音频的音频流
stream_out = p.open(format=FORMAT,
                    channels=CHANNELS,
                    rate=RATE,
                    output=True,
                    frames_per_buffer=CHUNK,
                    stream_callback=play_callback)

# 开始录制和播放音频
stream_in.start_stream()
stream_out.start_stream()

while stream_in.is_active() or stream_out.is_active():
    pass

# 停止录制和播放音频
stream_in.stop_stream()
stream_out.stop_stream()

# 关闭音频流
stream_in.close()
stream_out.close()

p.terminate()