Safety

ECE 445 Safety Guidelines

  1. No one is allowed to work in the lab alone. At least 2 people must be in the lab at all times.
  2. Everyone must complete a mandatory online safety training in order to be allowed to work in the lab. Certificates of completion must submitted on Compass2g.
  3. Any group planning on working with high voltages is required to complete additional safety training.
  4. Any group charging or utilizing certain battery chemistries must read, understand, and follow guidelines for safe battery usage.
  5. If you're working on any project involving electric current running through a human subject, you must read through and understand these guidelines for Safe Current Limits!

Requirements and Grading

The Laboratory Safety Training must be completed by all students enrolled in ECE 445. This module can be found on University's Division of Research Safety website.

Submission and Deadlines

Certificates of completion must submitted on Compass2g the due date listed on the Course Calendar. Students who have not completed this requirement will have lab access revoked.

VoxBox Robo-Drummer

Craig Bost, Nicholas Dulin, Drake Proffitt

VoxBox Robo-Drummer

Featured Project

Our group proposes to create robot drummer which would respond to human voice "beatboxing" input, via conventional dynamic microphone, and translate the input into the corresponding drum hit performance. For example, if the human user issues a bass-kick voice sound, the robot will recognize it and strike the bass drum; and likewise for the hi-hat/snare and clap. Our design will minimally cover 3 different drum hit types (bass hit, snare hit, clap hit), and respond with minimal latency.

This would involve amplifying the analog signal (as dynamic mics drive fairly low gain signals), which would be sampled by a dsPIC33F DSP/MCU (or comparable chipset), and processed for trigger event recognition. This entails applying Short-Time Fourier Transform analysis to provide spectral content data to our event detection algorithm (i.e. recognizing the "control" signal from the human user). The MCU functionality of the dsPIC33F would be used for relaying the trigger commands to the actuator circuits controlling the robot.

The robot in question would be small; about the size of ventriloquist dummy. The "drum set" would be scaled accordingly (think pots and pans, like a child would play with). Actuators would likely be based on solenoids, as opposed to motors.

Beyond these minimal capabilities, we would add analog prefiltering of the input audio signal, and amplification of the drum hits, as bonus features if the development and implementation process goes better than expected.

Project Videos