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PBL 2

The document outlines the software and hardware requirements for a voice recognition system using Python, including necessary libraries and APIs. It describes the system architecture, including components like speech recognition, command parsing, and feedback generation. Additionally, it provides a sample program that captures voice commands and executes system tasks based on user input.

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skaveripatil6
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9 views5 pages

PBL 2

The document outlines the software and hardware requirements for a voice recognition system using Python, including necessary libraries and APIs. It describes the system architecture, including components like speech recognition, command parsing, and feedback generation. Additionally, it provides a sample program that captures voice commands and executes system tasks based on user input.

Uploaded by

skaveripatil6
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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6.

Software Requirements:
1. Programming Language: Python (with libraries like
SpeechRecognition, pyttsx3, etc.).
2. Operating System: Windows/Linux/MacOS.
3. IDE: Visual Studio Code, PyCharm, or Jupyter Notebook.
4. APIs: Google Speech-to-Text API or similar for speech recognition.
5. Database: SQLite or any lightweight database for storing user
preferences.
7. Hardware Requirements:
1. Processor: Minimum Intel i3 or equivalent.
2. RAM: At least 4GB (8GB recommended for smoother performance).
3. Microphone: For capturing voice commands.
4. Speakers: For audio feedback.
5. Storage: Minimum 500MB free space for program and dependencies.
SYSTEM DIAGRAM:

User Interface
Input: Microphone Output: Speakers

Speech Recognition (Speech-to-Text)

Command Parser (Intent Recognition Layer)

Execution Module
(Executes system-level actions like opening apps, changing settings, etc.)

Feedback Generation Unit


(Text-to-Speech for audio response)
USECASE DIAGRAM:
User

Provide Voice Command

Speech Recognition System

Command Parsing Unit

Execution module Feedback System


(Perform Task) (Text-to-Speech)

Perform System Task Provide Feedback


PROGRAM:

import speech_recognition as sr
import pyttsx3
import os

# Function to convert text to speech


def speak(text):
engine = pyttsx3.init()
engine.say(text)
engine.runAndWait()

# Function to capture and recognize speech


def listen():
recognizer = sr.Recognizer()
with sr.Microphone() as source:
print("Listening...")
audio = recognizer.listen(source)
try:
command = recognizer.recognize_google(audio)
print(f"You said: {command}")
return command.lower()
except sr.UnknownValueError:
speak("Sorry, I didn't catch that.")
return None
# Function to execute recognized commands
def execute_command(command):
if "open notepad" in command:
os.system("notepad")
speak("Opening Notepad.")
elif "play music" in command:
os.system("start wmplayer") # Command for Windows Media Player
speak("Playing music.")
elif "exit" in command:
speak("Goodbye!")
exit()
else:
speak("Command not recognized.")

# Main program loop


if __name__ == "__main__":
speak("Hello! I am your AI assistant. How can I help you?")
while True:
user_command = listen()
if user_command:
execute_command(user_command)

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