1/3 Octave Pink Noise Readings. http://www.rainfall.com/cdroms/pink_noise.htm Play track 23 ( 1k pink noise ) and adjust volume for 0 db reading. Play the remaining track and record the variation from 0db for the remaining tracks. TRACK CENTER SPL METER READINGs FREQ. 1 2 3 4 5 6: 20 hz _____ _____ _____ _____ _____ 7: 25 hz _____ _____ _____ _____ _____ 8: 32 hz _____ _____ _____ _____ _____ 9: 40 hz _____ _____ _____ _____ _____ 10: 50 hz _____ _____ _____ _____ _____ 11: 62 hz _____ _____ _____ _____ _____ 12: 80 hz _____ _____ _____ _____ _____ 13: 100 hz _____ _____ _____ _____ _____ 14: 125 hz _____ _____ _____ _____ _____ 15: 160 hz _____ _____ _____ _____ _____ 16: 200 hz _____ _____ _____ _____ _____ 17: 250 hz _____ _____ _____ _____ _____ 18: 315 hz _____ _____ _____ _____ _____ 19: 400 hz _____ _____ _____ _____ _____ 20: 500 hz _____ _____ _____ _____ _____ 21: 630 hz _____ _____ _____ _____ _____ 22: 800 hz _____ _____ _____ _____ _____ 23: 1 khz _____ _____ _____ _____ _____ 24: 1.3 khz _____ _____ _____ _____ _____ 25: 1.6 khz _____ _____ _____ _____ _____ 26: 2 khz _____ _____ _____ _____ _____ 27: 2.5 khz _____ _____ _____ _____ _____ 28: 3.2 khz _____ _____ _____ _____ _____ 29: 4 khz _____ _____ _____ _____ _____ 30: 5 khz _____ _____ _____ _____ _____ 31: 6.4 khz _____ _____ _____ _____ _____ 32: 8 khz _____ _____ _____ _____ _____ 33: 10 khz _____ _____ _____ _____ _____ 34: 13 khz _____ _____ _____ _____ _____ 35: 16 khz _____ _____ _____ _____ _____