Industrial Noise Control and Sound Attenuation Design is about Industrial noise control receives increasing importance over the years due to strict noise regulations imposed by many nations worldwide. Noise sources in industry can be from power generation equipment like diesel engines, turbines, generators, motors and exhaust jet gases. They can be from HVAC equipment like chillers, fans and pumps. They can be from factory machines, fabrication workshops and production lines. They also can be from vehicles or the roads.