Underwater sound mitigation system for explosive testing

An underwater sound mitigating apparatus comprising:

• means for generating volumes of gas;
• means for providing heat resistant tubing assemblies being connected to said gas volumes generating means to receive said volumes of gas, said heat resistant tubing assembly providing means having holes to vent first portions of said volumes of gas into ambient water;
• means for providing general tubing assemblies being connected to said heat resistant tubing assembly providing means, said general tubing assembly providing means having holes to vent second portions of said volumes of gas into ambient water, said first and second portions of said volumes being vented as a virtual curtain of bubbles in ambient water.

A system to mitigate sound underwater comprising:

• a plurality of containers each containing volumes of particulate-like matter, said particulate-like matter being heavier than water and;
• a plurality of tubing assemblies, said tubing assemblies being connected to said containers to receive said volumes of particulate matter, each tubing assembly having holes to drop said volumes of particulate-like matter into ambient water, said containers and said tubing assemblies being positively buoyant to float at the surface of said ambient water and said volumes of dropped particulate matter forming a virtual curtain of falling particulate-like matter.