Audio Frequency Spectrum Visualizer

Project Overview

Display audio frequency bands from a microphone input.

Objectives

Frequency bins; filtering

Required Hardware / Software

Electret mic, preamp, FFT module, display

Development Plan

1. Define project requirements and technical constraints.
2. Prepare architecture, flowcharts, and component or module list.
3. Implement the core feature in small verifiable stages.
4. Test errors, edge cases, and recovery behavior.
5. Document results and prepare the demonstration and viva.

Testing Checklist

• Check normal operation and expected output.
• Test invalid input, disconnections, and relevant fault cases.
• Record measurements or screenshots as appropriate.
• Document limitations, security, and operating conditions.

Deliverables

Architecture or circuit diagram, annotated code, screenshots or measurements, test report, documentation outline, and demonstration.

Educational project concept with an illustrative image, not a photograph of a completed customer project. Implementation details must be verified before practical use.