SpeechRecognition

1. 개발환경 구성

pip3 install SpeechRecognition

# for MAC
brew install portaudio
pip3 install pyaudio

# for Ubuntu
sudo apt-get install python-pyaudio python3-pyaudio
sudo apt-get install portaudio19-dev python-all-dev python3-all-dev
sudo pip install pyaudio

# for api
python3 -m pip install vosk
python3 -m pip install git+https://github.com/openai/whisper.git soundfile

2. 예제 코드

1. Google API

• 코드

import speech_recognition as sr

r = sr.Recognizer()
with sr.Microphone() as source:
    print('listening...')
    audio = r.listen(source, timeout=10, phrase_time_limit=10)
    print("......")

try:
    text = r.recognize_google(audio, language='ko')
    print(text)
except sr.UnknownValueError:
    print("Recognizer Failed..")
except sr.RequestError as e:
    print("Request Failed...", e)

2. Vosk

• 환경 구성
• 모델 다운로드
• https://alphacephei.com/vosk/models
• https://alphacephei.com/vosk/models/vosk-model-small-ko-0.22.zip
• 모델 파일 다운로드 이후에, 프로젝트 폴더 하위에 model 폴더 생성 후 압축해제한다.

• 코드

import speech_recognition as sr

r = sr.Recognizer()
with sr.Microphone() as source:
    print('listening...')
    audio = r.listen(source, timeout=10, phrase_time_limit=10)
    print("......")

try:
    text = r.recognize_vosk(audio, language='ko')
    print(text)
except sr.UnknownValueError:
    print("Recognizer Failed..")
except sr.RequestError as e:
    print("Request Failed...", e)

3. whisper

• 코드

import speech_recognition as sr

r = sr.Recognizer()
with sr.Microphone() as source:
    print('listening...')
    audio = r.listen(source, timeout=10, phrase_time_limit=10)
    print("......")

try:
    text = r.recognize_whisper(audio, language='ko')
    print(text)
except sr.UnknownValueError:
    print("Recognizer Failed..")
except sr.RequestError as e:
    print("Request Failed...", e)

3. 테스트

• 테스트 파일
• 안녕하세요. 이것은 테스트 문장입니다.

• 코드

import speech_recognition as sr
import json

r = sr.Recognizer()
with sr.Microphone() as source:
    print('listening...')
    audio = r.listen(source, timeout=10, phrase_time_limit=10)
    print("......")

try:
    text_google = r.recognize_google(audio, language='ko', show_all=True)
    text_google = dict(text_google)['alternative'][0]['transcript'] if 'alternative' in dict(text_google).keys() else ""
    text_vosk = r.recognize_vosk(audio, language='ko')
    text_vosk = json.loads(text_vosk)['text']
    text_whisper = r.recognize_whisper(audio, language='ko')
    print("[Google]", text_google)
    print("[Vosk]", text_vosk)
    print("[whisper]", text_whisper)
except sr.UnknownValueError:
    print("Recognizer Failed..")
except sr.RequestError as e:
    print("Request Failed...", e)

• 인식 결과

[Google] 안녕하세요 이것은 테스트 문장입니다
[Vosk] 륜 리아의 아이버슨 테스트 문자 입니다
[whisper]  안녕하세요 이것은 테스트 문장입니다

참고

SpeechRecognition

Library for performing speech recognition, with support for several engines and APIs, online and offline.

https://pypi.org/project/SpeechRecognition/