在PC上复刻小爱音箱功能

右仆射卧龙 / 2024-09-24 / 原文

1.离线语音唤醒，用Picovoice实现

相关链接：

Picovoice官网

Picovoice github 主要用于查看python如何调用

python实现示例

import pvporcupine
import pyaudio
import struct

def main():
    # 初始化 Porcupine
    porcupine = pvporcupine.create(
        access_key="xxxxxxxx",  # 替换为你的 Picovoice access key
        keyword_paths=["./hey-amy_en_windows_v3_0_0.ppn"]  # 替换为你的关键词文件路径
    )

    # 初始化 PyAudio
    audio = pyaudio.PyAudio()

    # 获取默认的输入设备
    stream = audio.open(
        rate=porcupine.sample_rate,
        channels=1,
        format=pyaudio.paInt16,
        input=True,
        frames_per_buffer=porcupine.frame_length
    )

    print("Listening for wake word...")

    try:
        while True:
            # 从麦克风中读取音频数据
            pcm = stream.read(porcupine.frame_length)
            pcm = struct.unpack_from("h" * porcupine.frame_length, pcm)

            # 处理音频数据，检测是否包含唤醒词
            keyword_index = porcupine.process(pcm)

            if keyword_index >= 0:
                print("识别到了")
    except KeyboardInterrupt:
        print("Stopping...")
    finally:
        # 清理资源
        stream.close()
        audio.terminate()
        porcupine.delete()

if __name__ == "__main__":
    main()