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小智智能助手/README.md
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小智智能助手/README.md
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# 🎙️ 智能语音助手 “小智”
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一个基于 **百度智能云语音识别 + 合成** 和 **DeepSeek-R1 对话模型** 的智能语音助手,支持以下功能:
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* 🎤 **语音唤醒与自动录音**
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* 🧠 **自然语言理解(LLM)问答**
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* 🔊 **语音合成回应**
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* 🕹️ **Python 本地运行,无需前端或网页**
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---
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## ✅ 功能概览
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| 功能模块 | 描述 |
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| ----------- | ---------------------------------- |
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| 语音唤醒 | 检测是否说出“小智”关键词,触发问答流程 |
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| 自动录音 | 使用 WebRTC VAD 进行语音活动检测,自动判断语音开始和结束 |
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| 百度语音识别 | 调用百度智能云 API,将语音识别成文本 |
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| DeepSeek 问答 | 将用户问题发送到 DeepSeek-R1 模型,获取智能回复 |
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| 百度语音合成 | 将 AI 回复转换为音频并使用 `pygame` 播放 |
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---
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## 📦 环境依赖(requirements.txt)
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```txt
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requests
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pyaudio
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pygame
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webrtcvad
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openai
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```
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安装依赖:
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```bash
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pip install -r requirements.txt -i https://pypi.tuna.tsinghua.edu.cn/simple/
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```
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如遇 `pyaudio` 安装失败,推荐使用:
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```bash
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pip install pipwin
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pipwin install pyaudio
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```
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---
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## 🔐 API 配置
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打开 `main.py` 或脚本文件,将以下参数替换为你自己的:
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```python
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# 百度智能云 API
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BAIDU_API_KEY = "你的API Key"
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BAIDU_SECRET_KEY = "你的Secret Key"
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# DeepSeek-R1 API
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DEEPSEEK_API_KEY = "你的DeepSeek API Key"
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```
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---
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## 🚀 启动方式
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```bash
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python main.py
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```
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启动后助手进入循环监听状态,等待用户说出 **唤醒词“小智”**,进入问答流程。
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---
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## 🎧 示例流程
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1. **你说:“小智”**(唤醒)
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2. 程序回应:“好的,小智在。请说出你的问题。”
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3. **你说:“今天北京天气怎么样?”**
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4. 小智回答:“今天北京的天气是晴转多云,最高气温27度。”
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---
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## 🔊 技术细节
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* 📍 **自动录音**:基于 `webrtcvad` 自动结束语音(检测静音)
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* 📍 **语音识别**:百度 `vop.baidu.com/server_api`
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* 📍 **语音合成**:百度 `tsn.baidu.com/text2audio`
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* 📍 **AI对话**:调用 DeepSeek-R1 `chat.completions` 接口(通过 OpenAI SDK)
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---
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## 🛠️ 注意事项
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* 程序使用 `pyaudio` 进行录音,需麦克风硬件支持
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* 百度语音识别需中文 `16kHz 单声道 PCM`
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* 请保持联网状态,所有服务需调用在线 API
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小智智能助手/app.py
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小智智能助手/app.py
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import requests
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import base64
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import time
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import wave
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import pyaudio
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import pygame
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import webrtcvad
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from openai import OpenAI
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# --------------------- 配置参数 ---------------------
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# 百度智能云 API 配置(请替换为您的 API Key 和 Secret Key)
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BAIDU_API_KEY = "4icZSO1OlMCU2ZiRMhgGCXFu"
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BAIDU_SECRET_KEY = "6wJldJ08m1jIX9hb0ULcJrIJ9D1OJW3c"
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# DeepSeek API 配置(请替换为您的 DeepSeek API Key)
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DEEPSEEK_API_KEY = "sk-f15b44b6b3344cdd820e59acebce9d2c"
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# 录音参数
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CHUNK = 1024
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FORMAT = pyaudio.paInt16
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CHANNELS = 1
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RATE = 16000
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# 设备 ID(可以随意设定)
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DEVICE_ID = "raspberry_pi"
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# --------------------- 工具函数 ---------------------
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def get_baidu_token():
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"""获取百度智能云 API 访问令牌"""
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url = "https://aip.baidubce.com/oauth/2.0/token"
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params = {
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"grant_type": "client_credentials",
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"client_id": BAIDU_API_KEY,
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"client_secret": BAIDU_SECRET_KEY,
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}
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response = requests.post(url, data=params)
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if response.status_code == 200:
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return response.json().get("access_token")
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print("获取百度 Token 失败")
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return None
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def record_audio_vad(filename, max_duration=10):
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"""使用 WebRTC VAD 语音活动检测实现自动录音"""
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vad = webrtcvad.Vad(1) # 设置 VAD 灵敏度(0-3,越大越严格)
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p = pyaudio.PyAudio()
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# 🛠 **确保录音格式符合 WebRTC VAD 要求**
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stream = p.open(format=pyaudio.paInt16, channels=1, rate=16000, input=True, frames_per_buffer=320)
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print("开始录音(自动检测静音停止)...")
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frames = []
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silence_count = 0
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max_silence = 150 # 允许最多 1 秒静音(30 帧)
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while True:
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data = stream.read(320, exception_on_overflow=False) # **🛠 WebRTC VAD 需要 10ms 帧大小**
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frames.append(data)
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# 检查是否有语音
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is_speech = vad.is_speech(data, 16000)
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silence_count = 0 if is_speech else silence_count + 1
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if silence_count > max_silence: # 如果连续 1 秒静音,则停止录音
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print("检测到静音,录音结束。")
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break
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# 限制最大录音时长
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if len(frames) > int((16000 / 320) * max_duration):
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print("达到最大录音时长,录音结束。")
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break
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stream.stop_stream()
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stream.close()
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p.terminate()
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# 保存录音为 WAV 文件
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wf = wave.open(filename, 'wb')
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wf.setnchannels(1)
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wf.setsampwidth(p.get_sample_size(pyaudio.paInt16))
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wf.setframerate(16000)
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wf.writeframes(b''.join(frames))
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wf.close()
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def speech_recognition(audio_file, token):
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"""调用百度语音识别 API 将音频转文本"""
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with open(audio_file, "rb") as f:
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speech_data = f.read()
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speech_base64 = base64.b64encode(speech_data).decode('utf-8')
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payload = {
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"format": "wav",
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"rate": RATE,
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"channel": 1,
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"token": token,
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"cuid": DEVICE_ID,
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"len": len(speech_data),
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"speech": speech_base64,
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"word_list": ["小智","小志","小至"] # 添加热词,提高识别准确率
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}
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url = "http://vop.baidu.com/server_api"
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headers = {'Content-Type': 'application/json'}
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response = requests.post(url, json=payload, headers=headers)
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result = response.json()
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if result.get("err_no") == 0:
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return result.get("result", [""])[0]
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print("语音识别错误:", result.get("err_msg"))
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return None
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def wake_word_detected(text):
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"""检查文本是否包含唤醒词"""
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wake_words = ["小智", "小志", "小知", "晓智"]
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return any(word in text for word in wake_words)
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def deepseek_conversation(user_text):
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"""调用 DeepSeek API 获取 AI 回答"""
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try:
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client = OpenAI(api_key=DEEPSEEK_API_KEY, base_url="https://api.deepseek.com")
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response = client.chat.completions.create(
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model="deepseek-chat",
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messages=[{"role": "system", "content": "你是一名叫小智的助手,回复不需要使用markdown格式,请直接以文本形式回复。"},
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{"role": "user", "content": user_text}],
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stream=False
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)
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return response.choices[0].message.content
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except Exception as e:
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print("DeepSeek API 调用异常:", e)
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return "抱歉,我无法获取答案。"
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def text_to_speech(text, token, output_file="answer.mp3"):
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"""调用百度语音合成 API,将文本转换为语音"""
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MAX_CHAR = 1024
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text = text[:MAX_CHAR] if len(text) > MAX_CHAR else text
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params = {
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"tex": text,
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"tok": token,
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"cuid": DEVICE_ID,
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"ctp": 1,
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"lan": "zh"
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}
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url = "http://tsn.baidu.com/text2audio"
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response = requests.post(url, data=params)
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if response.headers.get('Content-Type') == "audio/mp3":
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with open(output_file, "wb") as f:
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f.write(response.content)
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return output_file
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print("语音合成错误:", response.text)
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return None
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def play_audio(file_path):
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"""播放音频文件"""
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pygame.mixer.init()
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pygame.mixer.music.load(file_path)
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pygame.mixer.music.play()
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while pygame.mixer.music.get_busy():
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time.sleep(0.1)
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# --------------------- 主程序 ---------------------
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def main():
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print("启动智能助手小智...")
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token = get_baidu_token()
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if not token:
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return
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while True:
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print("等待唤醒词 '小智' ...")
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record_audio_vad("wake.wav", max_duration=3)
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wake_text = speech_recognition("wake.wav", token)
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if wake_text and "小智" in wake_text:
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print("唤醒成功,小智回应:好的,小智在。")
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# 语音合成回应 "好的,小智在。"
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response_audio = text_to_speech("好的,小智在。请说出你的问题。", token, output_file="wakeup_response.mp3")
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if response_audio:
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play_audio(response_audio) # 播放唤醒成功音频
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print("请说出您的问题:")
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record_audio_vad(filename="query.wav")
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user_query = speech_recognition("query.wav", token)
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if user_query:
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print("用户说:", user_query)
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# 使用 DeepSeek-R1 模型获取回答
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answer = deepseek_conversation(user_query)
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print("小智回答:", answer)
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# 使用百度语音合成将回答转换为语音
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audio_file = text_to_speech(answer, token, output_file="answer.mp3")
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if audio_file:
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play_audio(audio_file)
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else:
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print("未能识别您的问题,请重试。")
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time.sleep(1)
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if __name__ == '__main__':
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main()
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小智智能助手/requirements.txt
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小智智能助手/test.py
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BAIDU_API_KEY = "gQyEX2mdkEa3gHvaYxcXMSv3"
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BAIDU_SECRET_KEY = "M5s4mMH3B5yeX5LDP4RME3rdlxATb3lO"
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# 设备唯一标识(可设置为行空板的设备 ID 或 MAC 地址)
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DEVICE_ID = "your_device_id"
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# DeepSeek API 配置(请替换为实际接口地址及参数)
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DEEPSEEK_API_URL = "https://api.deepseek.com"
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DEEPSEEK_API_KEY = "sk-f15b44b6b3344cdd820e59acebce9d2c"
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"""
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curl https://api.deepseek.com/chat/completions \
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-H "Content-Type: application/json" \
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-H "Authorization: Bearer <sk-f15b44b6b3344cdd820e59acebce9d2c>" \
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-d '{
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"model": "deepseek-chat",
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"messages": [
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{"role": "system", "content": "You are a helpful assistant."},
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{"role": "user", "content": "Hello!"}
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],
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"stream": false
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}'
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"""
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小智智能助手/流程图.md
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```mermaid
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graph TD
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A[用户说话] --> B[语音录音模块pyaudiowebrtcva]
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B --> C[语音识别模块百度语音识别API]
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C --> D[语义理解模块DeepSeek大模型]
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D --> E[语音合成模块百度语音合成API]
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E --> F[音频播放模块pygame]
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F --> G[返回语音回答]
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G --> H{是否继续交互}
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H -- 是 --> B
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H -- 否 --> I[结束程序]
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```
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小智智能助手/附件2:作品说明文档.doc
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小智智能助手/附件4:参赛选手承诺书.docx
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