python怎么实时语音识别文字
时间: 2024-10-03 12:02:18 浏览: 30
在Python中实现实时语音识别并将文字化,可以使用开源库如SpeechRecognition和Google Cloud Speech-to-Text API。以下是基本步骤:
1. 安装必要的库:
- `pip install SpeechRecognition`
- 如果需要Google API支持,还需安装`google-cloud-speech`库,并设置Google Cloud SDK。
2. 导入所需模块:
```python
import speech_recognition as sr
from google.cloud import speech_v1p1beta1 as speech
```
3. 实例化语音识别器:
```python
r = sr.Recognizer()
client = speech.SpeechClient()
```
4. 配置音频输入(麦克风或其他录音设备):
```python
# 录音函数
def record_audio():
with sr.Microphone() as source:
print("请开始说话...")
audio = r.listen(source)
return audio
# Google API的音频文件识别
def transcribe_google(audio):
config = speech.RecognitionConfig(
encoding=speech.RecognitionConfig.AudioEncoding.LINEAR16,
language_code="zh-CN",
sample_rate_hertz=16000
)
response = client.recognize(config=config, audio=audio)
text = ""
for result in response.results:
text += result.alternatives[0].transcript + " "
return text.strip()
# 示例
audio_data = record_audio()
transcribed_text = transcribe_google(audio_data)
print(f"你说的是: {transcribed_text}")
```
请注意,实时语音识别可能会有延迟,而且网络连接对Google API的访问至关重要。同时,免费额度有限,超出后可能需要付费。
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