TY - JOUR AU - Sawatzky, Devon PY - 2008/12/01 Y2 - 2024/03/28 TI - Sense what you can't hear JF - Canadian Acoustics JA - Canadian Acoustics VL - 36 IS - 4 SE - Technical Articles DO - UR - https://jcaa.caa-aca.ca/index.php/jcaa/article/view/2109 SP - 54-56 AB - In this project a device was constructed that could help deaf people by vibrating when it detects sudden noises that may indicate impending danger. The device was tested to determine how well it would respond to different frequencies. The test revealed that the device responded to mid frequencies the best, and that overall it worked well. ER -