Voice Modifier Web App

A simple web application to upload or record your voice, tweak pitch/speed, and download the transformed audio.
Built with Flask and PyDub.

Features

• Upload or record voice (supports .wav)
• Pitch shift (up/down semitones)
• Speed control (time-stretch)
• Optional robot (ring modulation) effect
• Download processed audio

Tech Stack

• Backend: Flask, PyDub
• Frontend: HTML, CSS, JavaScript
• Audio Processing: PyDub, ffmpeg

Project Structure

voice-modifier/ │── app.py # Flask backend │── requirements.txt # Dependencies │── static/ # CSS, JS, frontend assets │── templates/ # HTML templates │── uploads/ # Temporary uploaded files (ignored by git) │── outputs/ # Processed audio files (ignored by git) │── .gitignore # Ignored files/folders │── README.md # Project documentation

Setup Instructions

1. Clone repo in your bash git clone cd voice-modifier
2. Create virtual environment python -m venv .venv source .venv/bin/activate # Mac/Linux .venv\Scripts\activate # Windows
3. Install dependencies pip install -r requirements.txt
4. Run the app python app.py Open the port in your browser

Notes

• Only .wav files under 25 seconds are supported (due to processing limits).
• uploads/ and outputs/ are ignored in git (.gitignore).