{"content":[{"text":"HUSHCORE™ Acoustical General Information \n Products & Systems Terminology & Definitions \n Product Types \n Treatment Strategies \n Applications/Uses \n Technical Discussion \n Fundamentals Of Noise Control \n Problem Solving \n Effective acoustical design in the The sketches and descriptions on the \n Industrial, OEM, HVAC, Architectural next page will illustrate in more detail \n and Environmental markets relates to the most basic treatment strategies \n the simple Source/Path/Receiver model. using engineering controls. \n In most cases the simple model is more Please note that prior to implementing \n complex as there are multiple sources noise control treatments, mechanical \n generating the noise, multiple equipment should be checked for proper \n transmission paths and multiple installation, balancing and routine \n receivers or receiver areas that are maintenance. Poorly maintained \n targeted for noise control. Furthermore, equipment will generate higher noise \n the source can be airborne and/or levels. \n structure-borne and the transmission Proper selection and sizing of \n path can be direct and/or indirect equipment or modifications to the \n (reflected). Each of these areas in the operating speeds should also be \n noise control model need to be reviewed prior to instituting engineering \n evaluated to determine where the controls. Slower operating speeds will \n simplest most cost-effective treatment generally result in lower noise levels. \n can be applied while meeting all of the In end user applications, \n project requirements. Important factors administrative controls can reduce \n in addition to the overall acoustic employee/receiver noise dose/exposure. \n performance include cost, safety, This is done by limiting the daily \n accessibility, visual access, ease of duration of operation for noisy \n installation, useful life, aesthetics and equipment or time shifting employees to \n minimizing the disruption of daily bring down the overall time weighted \n operation of the process, system or average. \n equipment.","bbox":{"left":0.117647,"top":0.025,"width":0.735608,"height":0.6177119999999999}},{"text":"Source/Path/Receiver Model \n The sketches and descriptions on the next page illustrate in more detail the most \n basic treatment strategies using engineering controls. “Typical” noise reductions \n associated with each strategy are listed below.","bbox":{"left":0.147059,"top":0.681742,"width":0.698785,"height":0.08294000000000001}},{"text":"SOURCE \n CONTROL","bbox":{"left":0.170392,"top":0.775758,"width":0.09688200000000002,"height":0.0382880000000001}},{"text":"DIRECT PATH \n CONTROL","bbox":{"left":0.323922,"top":0.775758,"width":0.13160700000000003,"height":0.0382880000000001}},{"text":"INDIRECT PATH \n CONTROL","bbox":{"left":0.497843,"top":0.775758,"width":0.1512170000000001,"height":0.0382880000000001}},{"text":"RECEIVER \n CONTROL","bbox":{"left":0.714118,"top":0.775758,"width":0.10043199999999997,"height":0.0382880000000001}},{"text":"6 to 8 dB","bbox":{"left":0.179608,"top":0.827955,"width":0.078569,"height":0.020818000000000003}},{"text":"10 to 25 dB & up","bbox":{"left":0.316863,"top":0.827955,"width":0.146196,"height":0.020818000000000003}},{"text":"4 to 6 dB","bbox":{"left":0.534314,"top":0.827955,"width":0.078569,"height":0.020818000000000003}},{"text":"10 to 25 dB & up","bbox":{"left":0.691176,"top":0.827955,"width":0.146196,"height":0.020818000000000003}},{"text":"19","bbox":{"left":0.884902,"top":0.927996,"width":0.018064999999999998,"height":0.017279000000000044}},{"text":"1-610-863-6300","bbox":{"left":0.144118,"top":0.948153,"width":0.16294899999999998,"height":0.02441099999999996}},{"text":"Noise and Vibration Control, Inc.","bbox":{"left":0.580392,"top":0.950227,"width":0.28251000000000004,"height":0.020818000000000003}}],"images_bbox":[{"left":0.368971,"top":0.942374,"width":0.195659,"height":0.041939}],"images_bbox_not_text_overlap":[{"left":0.368971,"top":0.942374,"width":0.195659,"height":0.041939}]}