OpenClaw 是一个集成了语音识别功能的工具/库,以下是其基本使用方法:

安装与环境配置
安装依赖
# 或从源码安装 git clone https://github.com/OpenClaw/OpenClaw.git cd OpenClaw pip install -e .
安装语音识别引擎
# 安装必要的音频处理库 pip install pyaudio # 录音功能 pip install speechrecognition # 语音识别核心
基本使用方法
简单语音识别
import openclaw
from openclaw.voice import VoiceRecognizer
# 初始化识别器
recognizer = VoiceRecognizer()
# 实时语音识别
text = recognizer.listen_from_microphone()
print(f"识别结果: {text}")
# 识别音频文件
text = recognizer.recognize_file("audio.wav")
完整示例代码
import openclaw
from openclaw.voice import VoiceRecognizer
import threading
class VoiceAssistant:
def __init__(self):
self.recognizer = VoiceRecognizer()
self.is_listening = False
def start_listening(self):
"""开始实时监听"""
self.is_listening = True
print("开始监听... (说'退出'结束)")
while self.is_listening:
try:
# 监听用户语音
text = self.recognizer.listen_from_microphone(
timeout=3, # 超时时间
phrase_time_limit=5 # 单次录音时长
)
if text:
print(f"你说: {text}")
self.process_command(text)
except Exception as e:
print(f"识别错误: {e}")
def process_command(self, text):
"""处理识别到的文本"""
text = text.lower()
if "退出" in text or "停止" in text:
self.stop_listening()
elif "你好" in text:
print("助手: 你好!有什么可以帮您?")
elif "时间" in text:
from datetime import datetime
now = datetime.now()
print(f"助手: 现在是 {now.strftime('%H:%M:%S')}")
# 添加更多命令处理...
def stop_listening(self):
"""停止监听"""
self.is_listening = False
print("停止监听")
# 使用示例
if __name__ == "__main__":
assistant = VoiceAssistant()
# 在新线程中运行监听
listen_thread = threading.Thread(target=assistant.start_listening)
listen_thread.start()
# 等待线程结束
listen_thread.join()
高级功能
支持多种识别引擎
from openclaw.voice import VoiceRecognizer
recognizer = VoiceRecognizer(
engine="google", # 可选: google, whisper, sphinx, azure
language="zh-CN", # 中文
# API配置(如果需要)
api_key="your_api_key"
)
# 或使用 Whisper(需要安装 openai-whisper)
recognizer = VoiceRecognizer(engine="whisper", model="base")
语音唤醒功能
from openclaw.voice import VoiceRecognizer, WakeWordDetector
# 初始化唤醒词检测
wake_detector = WakeWordDetector(
wake_word="小爪", # 自定义唤醒词
sensitivity=0.5
)
recognizer = VoiceRecognizer()
while True:
# 检测唤醒词
if wake_detector.detect():
print("唤醒词检测到!")
# 执行命令识别
command = recognizer.listen_from_microphone()
process_command(command)
流式识别(实时处理)
from openclaw.voice import StreamRecognizer
def on_partial_result(text):
"""部分识别结果回调"""
print(f"部分结果: {text}")
def on_final_result(text):
"""最终识别结果回调"""
print(f"最终结果: {text}")
# 创建流式识别器
stream_recognizer = StreamRecognizer(
on_partial=on_partial_result,
on_final=on_final_result
)
# 开始流式识别
stream_recognizer.start_stream()
配置选项
配置文件示例(config.yaml)
voice:
engine: "google"
language: "zh-CN"
energy_threshold: 300 # 声音敏感度
timeout: 5 # 录音超时
phrase_time_limit: 10 # 最长录音时间
# Whisper 配置
whisper:
model: "base"
device: "cpu"
# Azure 配置
azure:
key: "your_key"
region: "eastasia"
加载配置
import yaml
from openclaw.voice import VoiceRecognizer
# 加载配置
with open("config.yaml", "r") as f:
config = yaml.safe_load(f)
# 使用配置初始化
recognizer = VoiceRecognizer(**config["voice"])
常见问题解决
无法录音
- 检查麦克风权限
- 安装正确的 PyAudio 版本
- Linux 系统可能需要安装 portaudio:
sudo apt-get install portaudio19-dev python3-pyaudio
识别准确率低
- 调整 energy_threshold
- 使用更高质量的麦克风
- 在安静环境下使用
- 选择适合的识别引擎
性能优化
# 使用较小的模型
recognizer = VoiceRecognizer(
engine="whisper",
model="tiny", # tiny, base, small, medium, large
device="cpu" # 或 "cuda"
)
# 启用缓存
recognizer.enable_cache = True
应用场景示例
语音控制机器人
class VoiceControlledRobot:
def __init__(self):
self.recognizer = VoiceRecognizer()
def run(self):
while True:
command = self.recognizer.listen_from_microphone()
if "前进" in command:
self.move_forward()
elif "后退" in command:
self.move_backward()
# ... 其他命令
语音记事本
from datetime import datetime
class VoiceNotepad:
def __init__(self):
self.recognizer = VoiceRecognizer()
def take_note(self):
print("请说出您要记录的内容...")
text = self.recognizer.listen_from_microphone()
if text:
timestamp = datetime.now().strftime("%Y-%m-%d %H:%M:%S")
with open("notes.txt", "a", encoding="utf-8") as f:
f.write(f"[{timestamp}] {text}\n")
print("记录成功!")
是 OpenClaw 语音识别功能的基本使用方法,根据实际需求,可以进一步调整参数和扩展功能。
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