Initial Concept
Noise Cancelling Headphones - Initial Concept
Group Information
Group name: Noise--
| Name | E-mail address | Phone |
|---|---|---|
| Stuart McKim | mckims at engr dot oregonstate dot edu | 541.738.8159 |
| Jon Provanche | provancj at engr dot orst dot edu | 503.290.4179 |
| Crystal Gupta | guptac at onid dot orst dot edu | 503.332.2287 |
| Bangda Yang | yangba at onid dot orst dot edu | 503.810.5731 |
General Description
We will build a set of noise-reducing headphones that can be both portable and powered by AC power. The amount of noise-cancelling will be adjustable to allow for fine tuning based on the user's surroundings at time of use. The electronics will be housed in an enclosure that is separate from the headphones so that the headphones can also be used without the noise-cancelling unit attached.
Requirements
Musts
- works both with and without music playing
- AC and battery powered
- $100 maximum cost for prototype and test units
- maximum limit of cancelling intensity to prevent hearing damage
- maximum enclosure size 5x7x3 inches
- maximum headphone weight: 500g
Wants
- Total cost under $50
- Enclosure size 5x5x3 inches
Resources
- 4 team members x 7 hours per week x 6 weeks = 168 man hours
- $25 per team member = $100 total
- Tekbot charger board
- Extra cable for microphones (Stuart)
- Headphones (possible)
References
- Balzano, Laura, et al. "Sound Cancellation by Signal inversion" http://www.owlnet.rice.edu/~elec301/Projects99/soundcancel/
- Ryckebusch, Jules. "Build These Noise-Canceling Headphones". http://www.headwize.com/projects/noise_prj.htm
- "Theory of Active Noise Control" http://www.wa.wb.utwente.nl/Lectures/113172/avicrdr.pdf
Bangda Yang
- Denenberg, Jeffrey N. "NOISE CANCELLATION: QUIETING THE ENVIRONMENT." <http://doctord.dyndns.org:8000/Pubs/POTENT.htm >.
- R.W. Dyson, et al. "Simulating nonlinear stator noise for active control." <http://purl.access.gpo.gov/GPO/LPS55021 >.
- Hänsler, Eberhard. "Acoustic echo and noise control." Hoboken, NJ: Wiley-Interscience, c2004
- Pohlmann, Ken C. "Principles of digital audio." Indianapolis: Howard W. Sams, 1989.
Jon Provancher
- http://www.physics.brocku.ca/www/faculty/sternin/231/NCE.html -Schematic
- Handbook of noise and vibration control / [edited] by Antony Barber.
- http://www.faqs.org/faqs/active-noise-control-faq/
Crystal Gupta