帮我用pycharm实现中文语音识别系统,详细注释
时间: 2024-03-23 11:43:33 浏览: 190
好的,我可以给你提供一个基于百度AI平台的中文语音识别系统的实现方法,使用PyCharm作为开发环境。
1. 创建百度AI平台账号并创建应用
首先需要在百度AI平台上注册账号,并且创建一个语音识别应用。
2. 安装Python SDK
使用pip命令安装Python SDK,命令如下:
```
pip install baidu-aip
```
3. 获取Access Token
在代码中通过调用百度AI平台提供的API获取Access Token,代码如下:
```python
from aip import AipSpeech
APP_ID = 'your app id'
API_KEY = 'your api key'
SECRET_KEY = 'your secret key'
client = AipSpeech(APP_ID, API_KEY, SECRET_KEY)
# 获取Access Token
def get_access_token():
res = client.accessToken()
if 'access_token' in res:
access_token = res['access_token']
return access_token
else:
return None
```
其中,`your app id`、`your api key`和`your secret key`需要替换成你在百度AI平台上创建的应用对应的值。
4. 语音识别
使用PyAudio库录制音频,并调用百度AI平台提供的语音识别API进行识别,代码如下:
```python
import pyaudio
import wave
# 录音
def record_audio(file_name):
CHUNK = 1024
FORMAT = pyaudio.paInt16
CHANNELS = 1
RATE = 16000
RECORD_SECONDS = 5
p = pyaudio.PyAudio()
stream = p.open(format=FORMAT,
channels=CHANNELS,
rate=RATE,
input=True,
frames_per_buffer=CHUNK)
print("* recording")
frames = []
for i in range(0, int(RATE / CHUNK * RECORD_SECONDS)):
data = stream.read(CHUNK)
frames.append(data)
print("* done recording")
stream.stop_stream()
stream.close()
p.terminate()
wf = wave.open(file_name, 'wb')
wf.setnchannels(CHANNELS)
wf.setsampwidth(p.get_sample_size(FORMAT))
wf.setframerate(RATE)
wf.writeframes(b''.join(frames))
wf.close()
# 语音识别
def recognize_speech(file_name):
with open(file_name, 'rb') as f:
res = client.asr(f.read(), 'pcm', 16000, {'dev_pid': 1536})
if 'result' in res:
result = res['result'][0]
return result
else:
return None
```
其中,`file_name`为录制音频的文件名,可以自定义。
5. 完整代码
下面是完整的中文语音识别系统代码:
```python
from aip import AipSpeech
import pyaudio
import wave
APP_ID = 'your app id'
API_KEY = 'your api key'
SECRET_KEY = 'your secret key'
client = AipSpeech(APP_ID, API_KEY, SECRET_KEY)
# 获取Access Token
def get_access_token():
res = client.accessToken()
if 'access_token' in res:
access_token = res['access_token']
return access_token
else:
return None
# 录音
def record_audio(file_name):
CHUNK = 1024
FORMAT = pyaudio.paInt16
CHANNELS = 1
RATE = 16000
RECORD_SECONDS = 5
p = pyaudio.PyAudio()
stream = p.open(format=FORMAT,
channels=CHANNELS,
rate=RATE,
input=True,
frames_per_buffer=CHUNK)
print("* recording")
frames = []
for i in range(0, int(RATE / CHUNK * RECORD_SECONDS)):
data = stream.read(CHUNK)
frames.append(data)
print("* done recording")
stream.stop_stream()
stream.close()
p.terminate()
wf = wave.open(file_name, 'wb')
wf.setnchannels(CHANNELS)
wf.setsampwidth(p.get_sample_size(FORMAT))
wf.setframerate(RATE)
wf.writeframes(b''.join(frames))
wf.close()
# 语音识别
def recognize_speech(file_name):
with open(file_name, 'rb') as f:
res = client.asr(f.read(), 'pcm', 16000, {'dev_pid': 1536})
if 'result' in res:
result = res['result'][0]
return result
else:
return None
if __name__ == '__main__':
access_token = get_access_token()
if access_token:
print('Access Token:', access_token)
file_name = 'test.pcm'
record_audio(file_name)
result = recognize_speech(file_name)
if result:
print('识别结果:', result)
else:
print('识别失败')
else:
print('获取Access Token失败')
```
在运行代码之前,需要将`APP_ID`、`API_KEY`和`SECRET_KEY`替换成你自己的值。
6. 注意事项
在使用语音识别系统时,需要注意以下几点:
- 录制音频时需要保持尽量清晰,并且不要有杂音干扰。
- 如果识别结果不准确,可以尝试调整`dev_pid`参数,具体值可以参考百度AI平台文档。
- 在使用百度AI平台的API时,需要遵守相关的使用协议和法律法规。
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