Python lyric extractor from audio

This project provides a convenient way to extract vocals from a song and generate a semi-accurate text transcription of the lyrics. It leverages the following tools:

• Demucs: A powerful deep learning-based source separation model for isolating vocals from music. (https://github.com/facebookresearch/demucs)
• AssemblyAI: An AI-powered transcription service. (https://www.assemblyai.com/)

Dependencies

1. demucs: Install with pip install demucs.
2. ffmpeg: Install from your system's package manager or from https://ffmpeg.org/download.html
3. AssemblyAI API Key:
   • Sign up for a free AssemblyAI account.
   • Obtain your API key from your AssemblyAI dashboard.
   • Store your API key in a .env file in the project directory (see section below).
4. Python libraries: assemblyai, dotenv, os, traceback (install with pip install assemblyai dotenv)

Environment Setup

1. Open the .env file: Then input your api key:

   ASSEMBLYAI_API_KEY="YOUR_API"
   

   Important: Make sure to replace YOUR_API with your actual API key.

2. Install dependencies: Run the script in your terminal.

pip install demucs assemblyai dotenv

Usage

1. Place the song file you want to process in the root directory of the project.
2. Run the script from your terminal: python main.py
3. The script will prompt you to enter the full path to your song file.
4. After processing:
   • The isolated vocals will be saved as data/vocals.wav.
   • The generated lyrics will be saved as data/lyrics.txt.

Important Notes

• Transcription Accuracy: The provided transcription is a raw output and will likely contain errors. Manual cleanup, formatting, and editing will be required for optimal results.
• Audio Preprocessing: The quality of vocal separation and transcription can depend on the original audio quality. If needed, consider pre-processing your audio (e.g., normalization, noise reduction) before running the script.

Example

python main.py
Enter the path to the song file: /path/to/your/song.mp3
Lyrics saved to data/lyrics.txt
The lyrics need to be cleaned up and formatted properly. This is just a raw output that most likely contains errors.
The lyrics content is:
[Lyrics Text]