pip install pyaudio

conda install -c anaconda pyaudio

import pyaudio
 
# 初始化PyAudio對象
p = pyaudio.PyAudio()

# 獲取系統(tǒng)中音頻設備的數量
device_count = p.get_device_count()
print(f"系統(tǒng)中音頻設備的數量: {device_count}")
 
# 獲取每個設備的詳細信息
for i in range(device_count):
    device_info = p.get_device_info_by_index(i)
    print(f"設備{i}: {device_info['name']}")

# 設置音頻參數
FORMAT = pyaudio.paInt16  # 16位深度
CHANNELS = 1  # 單聲道
RATE = 44100  # 采樣率
CHUNK = 1024  # 每個緩沖區(qū)的幀數
 
# 打開音頻流用于播放（output=True）
stream = p.open(format=FORMAT, channels=CHANNELS, rate=RATE, output=True, frames_per_buffer=CHUNK)

import wave
 
# 打開一個WAV文件
wf = wave.open("example.wav", 'rb')
 
# 將音頻數據寫入音頻流中播放
data = wf.readframes(CHUNK)
while data:
    stream.write(data)
    data = wf.readframes(CHUNK)
 
# 停止和關閉流
stream.stop_stream()
stream.close()
 
# 關閉WAV文件
wf.close()

# 打開音頻流用于錄制（input=True）
stream = p.open(format=FORMAT, channels=CHANNELS, rate=RATE, input=True, frames_per_buffer=CHUNK)
 
print("開始錄制...")
frames = []
 
# 錄制音頻
for i in range(0, int(RATE / CHUNK * 5)):  # 錄制5秒
    data = stream.read(CHUNK)
    frames.append(data)
 
print("錄制結束")
 
# 停止和關閉流
stream.stop_stream()
stream.close()
 
# 保存錄制的音頻為WAV文件
wf = wave.open("output.wav", 'wb')
wf.setnchannels(CHANNELS)
wf.setsampwidth(p.get_sample_size(FORMAT))
wf.setframerate(RATE)
wf.writeframes(b''.join(frames))
wf.close()

import numpy as np
 
# 設置音頻參數
FORMAT = pyaudio.paInt16
CHANNELS = 1
RATE = 44100
CHUNK = 1024
 
# 打開音頻流用于實時處理（input=True, output=True）
stream = p.open(format=FORMAT, channels=CHANNELS, rate=RATE, input=True, output=True, frames_per_buffer=CHUNK)
 
print("開始實時音頻處理...")
try:
    while True:
        # 讀取音頻數據
        data = stream.read(CHUNK)
        
        # 將音頻數據轉換為numpy數組
        audio_data = np.frombuffer(data, dtype=np.int16)
        
        # 在這里可以對audio_data進行實時處理
        # 例如：降低音量
        audio_data = audio_data * 0.5
        
        # 將處理后的數據寫回音頻流
        stream.write(audio_data.tobytes())
except KeyboardInterrupt:
    print("停止實時音頻處理")
 
# 停止和關閉流
stream.stop_stream()
stream.close()
 
# 終止PyAudio對象
p.terminate()