Five-Band Audio Equalizer
Developed a fully functional audio equalizer using operational amplifier (op-amp) based active filters, enabling the adjustment of gains across the low, mid, and high-frequency ranges.
For detailed documentation and source code, visit my GitHub Repository.
The Five-Band Audio Equalizer project focuses on the development and implementation of a graphic equalization circuit that can manipulate audio signals across five specific frequency bands. Designed as part of the Laboratory Practice module in semester 3, this project aims to enhance hands-on skills in electronics by creating a fully functional audio equalizer using operational amplifier (op-amp) based active filters, enabling the adjustment of gains across the low, mid, and high-frequency ranges.
Features
- Adjustable Frequency Bands: Control over five specific frequency ranges for detailed audio customization.
- Low: 20-300Hz
- Low Mid: 300-1kHz
- Mid: 1kHz-4kHz
- High Mid: 4kHz-10kHz
- High: 10kHz-20kHz
- Active Filtering: Utilization of low-pass, high-pass, and band-pass filters to isolate and adjust specific frequency bands.
- Op-Amp Circuits: Employment of operational amplifiers for the filter circuits, ensuring high-quality signal processing.
Tools Used
- Circuit Design & Simulation: Filter Pro for filter calculations and NI Multisim for circuit simulation.
- PCB Design: Altium Designer for creating the printed circuit board layout.
- Enclosure Design: SolidWorks for designing the custom enclosure.
Circuit Design
Schematic Diagram
PCB 3D View
Circuit Design
Enclosure Design
The enclosure design was developed using SolidWorks, focusing on aesthetics, functionality, and durability.
Enclosure
