查看“Picovoice”的源代码

Picovoice是一家语音AI技术公司。提供一些产品，如Porcupine（离线唤醒词）。
	
==简介==
===时间轴===


==Porcupine ==
Porcupine，产品全称Porcupine Wake Word，是一款离线轻量级的唤醒词引擎，支持多语言，多平台。免费账号每个月只支持3个用户和3个唤醒词训练。

{{了解更多
|[https://picovoice.ai/platform/porcupine/ Picovoice 官网：Porcupine]
|[https://picovoice.ai/docs/porcupine/Picovoice Picovoice 文档：Porcupine ]
|[https://github.com/Picovoice/porcupine  Github：Picovoice/porcupine]
}}

=== 快速开始 ===
以[[Python]]语言示例，使用[[PyAudio]]录音，需要先安装好。：
* 注册或登录https://console.picovoice.ai/ 获取AccessKey。
* 安装pvporcupine：	<code>pip3 install pvporcupine</code>。
* 如果需要自定义唤醒词，需要在线训练，并下载指定文件位置，https://console.picovoice.ai/ppn。
* 使用非英语语言模型，需要下载指定位置，https://github.com/Picovoice/porcupine/tree/master/lib/common。
<syntaxhighlight lang="python" >
import struct
import pyaudio
import pvporcupine

porcupine = pvporcupine.create(
    access_key='你的AccessKey',
    keyword_paths=['/存储/路径/自定义唤醒词_zh_raspberry-pi_v3_0_0.ppn'],
    model_path='/存储/路径/语言模型/porcupine_params_zh.pv',
    )

# Initialize PyAudio
audio = pyaudio.PyAudio()
stream = audio.open(
    rate=porcupine.sample_rate,
    channels=1,
    format=pyaudio.paInt16,
    input=True,
    frames_per_buffer=porcupine.frame_length,
)

# Main loop
print("Listening for keywords...")
try:
    while True:
        # Read audio data from the microphone
        audio_data = stream.read(porcupine.frame_length)
        audio_frame = struct.unpack_from("h" * porcupine.frame_length, audio_data)

        # Process audio frame with Porcupine
        keyword_index = porcupine.process(audio_frame)

        if keyword_index == 0:
            print("Keyword 0 detected!")
        elif keyword_index == 1:
            print("Keyword 1 detected!")
finally:
    # Clean up resources
    stream.stop_stream()
    stream.close()
    audio.terminate()
    porcupine.delete()
</syntaxhighlight>

{{了解更多
|[https://picovoice.ai/docs/quick-start/porcupine-python Picovoice 文档：Porcupine Wake Word Python Quick Start]
}}

==资源==
===官网===
* Picovoice 官网：https://picovoice.ai
* Picovoice 文档：https://picovoice.ai/docs

===文章===
* [https://www.labno3.com/2021/07/30/wake-word-detection-on-the-raspberry-pi-with-porcupine/ Labno3：树莓派语音识别，详细步骤安装和配置Porcupine检测唤醒词]