PSYCH 3A03 Study Guide - Psych, Sound Power, Sound Energy

• School: McMaster University
• Department: Psychology
• Course: PSYCH 3A03
• Professor: Paul Faure

Document Summary

Paul a. faure: assume the speed of sound in air (cair) is = 340 m s-1, and the speed of sound in water (cwater) is = 4 cair, a calculator is not necessary to answer these questions. Instructions and tips db = 10 log10 (ix / iref) db = 10 log10 (10-6 db = 10 log10 (106) db = 60. 20 db corresponds to what intensity ratio? db = 10 log10 (ix / iref) 100 = (ix / iref) db = 20 log10 (px / pref) db = 20 log10 (2 / 1) db = 20 log10 (0. 301) db = 6. 02 (or just 6 db) An increase in sound pressure by 3 db corresponds to an increase in sound power by 3 db. 26 db corresponds to what pressure ratio? db = 20 log10 (px / pref) Paul a. faure: a friend is talking to you from poolside while you are swimming.