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Worker Communication Technology: solving the HIGH NOISE barrier CAVCOM, Made in the U.S.A. under US Patent No. 6175633. © 2011 CavCom Inc. OSHA Standards for Shipyard Employment 76 FR 24702, May 2, 2011 • 1915.84(a) Except as provided in § 1915.51(c)(3) of this part, whenever an employee is working alone, such as in a confined space or isolated location, the employer shall account for each employee • 1915.84(a)(1) Throughout each work shift at regular intervals appropriate to the job assignment to ensure the employee's safety and health; and • 1915.84(a)(2) At the end of the job assignment or at the end of the workshift, whichever occurs first. • 1915.84(b) The employer shall account for each employee by sight or verbal communication. *http://www.osha.gov/pls/oshaweb/owadisp.show_document?p_table=STANDARDS&p_id=193 CAVCOM, Made in the U.S.A. under US Patent No. 6175633. © 2011 CavCom Inc. Surviving at Work Without Effective Communication… CAVCOM, Made in the U.S.A. under US Patent No. 6175633. © 2011 CavCom Inc. The Result of Inadequate Communication in HIGH NOISE and with RESPIRATORS… Degraded production resulting from poor communication Misinterpreted instructions contributing to accidents Noise Induced Hearing Loss CAVCOM, Made in the U.S.A. under US Patent No. 6175633. © 2011 CavCom Inc. How BIG Is The Problem? • Hearing Loss was the #2 OSHA Recordable Illness for Manufacturing in 2007. Source: National Safety Council. (2008) Injury Facts®, Itasca, Il: Author. #1 • Hearing Loss was the OSHA Recordable Illness for Manufacturing in 2008, 2009, 2010 and 2011! Source: Bureau of Labor Statistics: (http://www.bls.gov/news.release/pdf/osh.pdf). CAVCOM, Made in the U.S.A. under US Patent No. 6175633. © 2011 CavCom Inc. Hearing Loss Claims In The Military • Hearing Loss and Tinnitus are the two most common Compensation Claims for VA. • 8% increase from 2007 to 2008 • 1,223,590 Hearing Loss claims in FY 2009 • ANNUAL federal expenditure of $1.1 billion in 2009 Source GA)-11-114 CAVCOM, Made in the U.S.A. under US Patent No. 6175633. © 2011 CavCom Inc. Shipyard Risks Exposed • Moll van Charante, AW Moulder, Study of Shipyard workers in the Netherlands. • Risk Factors found: – Alcohol consumption – hearing loss greater than 20dB – loud noise greater than 82dB. • Risks attributable to noise and hearing loss together accounted for 43% of the injuries. – Source: http://www.ncbi.nlm.nih.gov/pubmed/2316497 CAVCOM, Made in the U.S.A. under US Patent No. 6175633. © 2011 CavCom Inc. SCA Occupational Injury and Illness Survey No lost time cases on OSHA 300 YEAR TOTAL ILLNESS HEARING LOSS 2007 6 0 2008 13 2 2009 24 1 2010 27 22 Annual voluntary survey data accumulated by Shipbuilders Council of America CAVCOM, Made in the U.S.A. under US Patent No. 6175633. © 2011 CavCom Inc. Why people with high frequency hearing loss have difficulty understanding speech: VOWELS A-E-I-O-U CONSONANTS S–F–TH–V-Z CAVCOM, Made in the U.S.A. under US Patent No. 6175633. © 2011 CavCom Inc. Without the ability to hear consonants speech isn’t complete • High Frequency hearing loss is like reading a newspaper with holes in it: – Our aw ih on ah twel lor. – Did Reda rr ah warng lul? – Ray ah lit ree daggr. CAVCOM, Made in the U.S.A. under US Patent No. 6175633. © 2011 CavCom Inc. Poor speech discrimination IS the most critical communication problem. Our aw ih on ah twel lor. (Our office is on the twelfh floor) Did reda rr ah warng lul? (Did Freddie hear the warning whistle?) Ray ah lit ree daggr to ah leh. (Raise the lift three degrees to the left.) CAVCOM, Made in the U.S.A. under US Patent No. 6175633. © 2011 CavCom Inc. Speech Discrimination Studies on Radio Communication for Firefighters • Fire Ground Speech Discrimination Scores using radios in 8 acoustic environments 1. 2. 3. 4. 5. 6. 7. 8. No Noise – no mask No Noise with mask Mask with low air alarm Pumper truck work panel Two PASS alarm with mask Hose with fog nozzle and mask Chain saw cutting wood and mask Rotary saw cutting metal door 89% 78% 58% 42% 16% 11% 4% 2% Source: US Dept Commerce, National Telecommunications and Information Administration CAVCOM, Made in the U.S.A. under US Patent No. 6175633. © 2011 CavCom Inc. Hearing Protection IS a Communication Problem Hearing Protection and Personal Listening Devices Cause Adaptive (induced) Hearing Loss CAVCOM, Made in the U.S.A. under US Patent No. 6175633. © 2011 CavCom Inc. Attenuation from hearing protectors affects workers’ ability to hear: • NRR 32 Freq in Hz 125 250 500 1000 2000 3150 4000 6300 8000 Avg. Atten. in dB 41 36 41 42 41 45 44 45 48 CAVCOM, Made in the U.S.A. under US Patent No. 6175633. © 2011 CavCom Inc. Making sense of it all: Hearing protection on top of hearing loss Even AMPLIFIED sound cannot be heard! CAVCOM, Made in the U.S.A. under US Patent No. 6175633. © 2011 CavCom Inc. Radios and/or speaker mics cannot be heard due to HIGH NOISE and use of HEARING PROTECTION “SHUT THE MACHINE DOWN!” Did he say send more Grit down? Interesting Note: Workers claim to ignore their radios because they can’t understand them anyway CAVCOM, Made in the U.S.A. under US Patent No. 6175633. © 2011 CavCom Inc. Respirators and Blasting/Welding Hoods further complicate communication I’m going to remove this dang thing, so he can understand me! WA, WA WA WA, WA, WA WA WA WA! CAVCOM, Made in the U.S.A. under US Patent No. 6175633. © 2011 CavCom Inc. CavCom® Technology is “Talk Through Your Ears” We’ve miniaturized bulky components to achieve: •Optimum comfort •Superior hearing protection •Safe listening levels CAVCOM, Made in the U.S.A. under US Patent No. 6175633. © 2011 CavCom Inc. CavCom Technology: Both Microphone and Speakers are inside the hearing protection device protected by the HPD CAVCOM, Made in the U.S.A. under US Patent No. 6175633. © 2011 CavCom Inc. RADIO GEAR™ and CAVCOM® ear sets Ear set options with miniaturized speaker and microphone components: OMNI Universal NRR32 Custom Fit NRR26 QUAD Universal NRR32 CAVCOM, Made in the U.S.A. under US Patent No. 6175633. © 2011 CavCom Inc. Puget Sound Naval Shipyard Trials Communication is possible with the most difficult jobs: Workers agreed Survey Ability To Results Ability To Hear Radio Hearing Hear Radio 1 Lowest With 10 Highest Protection In Noise Respirator Personal Comfort Safety To You and Others With Radio Abrasive Blasters 9 7.7 8 7.2 9.2 Riggers and Crane Operators 8.75 8.85 NA 8.5 8.5 Welders 8.6 9.6 9.2 8.4 9.2 Note: Results were averaged from total surveys among each individual group CAVCOM, Made in the U.S.A. under US Patent No. 6175633. © 2011 CavCom Inc. Versatility of CavCom® • Performs in areas well over 100 dB with protection values up to NRR 34 • Integrates with any PPE, including respirators and double hearing protection • Variety of comfortable universal or custom fitted ear sets. • Intrinsically Safe models available • Adapts to any 2-Way Radio CAVCOM, Made in the U.S.A. under US Patent No. 6175633. © 2011 CavCom Inc. LEADING THE WAY in 2-Way Radio Communication Solutions and Hearing Protection CAVCOM, Made in the U.S.A. under US Patent No. 6175633. © 2011 CavCom Inc.