Emotion-Based Music Harmonizer

The Emotion-Based Music Harmonizer is a Python-based tool that allows users to mix multiple audio tracks (melody, harmony, bass, and percussion) based on a chosen emotion — calm, sad, or energetic. Using pydub for audio processing and tkinter for a GUI, this harmonizer adjusts elements in each track to evoke the desired emotional tone and exports the final mixed audio in WAV format.

Project Structure

The project consists of two main files:

• Emotion_Based_Music_Harmonizer.py: Contains the core audio processing functions and handles the mixing logic.
• GUI_Integration_Using_Tkinter.py: Provides a graphical interface for selecting music tracks and emotion options, and allows exporting the final mixed audio.

Features

• Emotion-Based Mixing: Choose from calm, sad, or energetic moods, each applying unique audio effects.
• Track Customization: Each emotion uses specific processing effects, such as volume adjustments, speed changes, and frequency filtering.
• Audio Export: Save the mixed output as a WAV file with an emotion-specific filename.

Requirements

• Python 3.x
• pydub for audio processing
• tkinter (pre-installed with Python)

To install pydub, run:

pip install pydub

System Requirements

Ensure ffmpeg or libav is installed for pydub to handle WAV file formats.

Usage

Command-Line Interface (CLI):

1. Run Emotion_Based_Music_Harmonizer.py:

   python Emotion_Based_Music_Harmonizer.py

2. Provide paths to melody, harmony, bass, and percussion WAV files.
3. Enter an emotion (calm, sad, or energetic).
4. The script mixes the tracks and saves the output as mixed_audio.wav.

GUI Application:

1. Run GUI_Integration_Using_Tkinter.py to open the graphical interface:

   python GUI_Integration_Using_Tkinter.py

2. Use the "Browse" buttons to load WAV files for each track.
3. Select an emotion from the dropdown.
4. Click Mix and Export to create and save the mixed audio file.

Emotion-Based Mixing Details

Each emotion applies unique adjustments to create the desired soundscape:

• Calm: Reduces percussion volume, adds low-pass filters to bass and harmony for a soothing effect.
• Sad: Lowers high frequencies, reduces volume, and adds a reverb-like effect to bass for a melancholic tone.
• Energetic: Increases tempo, emphasizes percussion, and overlays all tracks for a high-energy mix.

Function Overview

• load_tracks(): Loads WAV files as pydub audio segments.
• mix_calm(), mix_sad(), mix_energetic(): Adjusts audio based on chosen emotion.
• export_mixed_audio(): Exports the mixed audio as a WAV file.

GUI Components

• File Browsing: Load WAV files for each track using "Browse" buttons.
• Emotion Selection: Choose an emotion from a dropdown menu.
• Mix and Export: Generates and saves the mixed audio file based on the selected emotion.

Example

To create a calm mix:

1. Load melody.wav, harmony.wav, bass.wav, and percussion.wav.
2. Select "Calm" in the dropdown.
3. Click Mix and Export.
4. The output file calm_mixed.wav is saved in the directory.

Contributing

Contributions are welcome! Feel free to submit pull requests to add new features or report any issues.

Output