sound and flash battalion

sound ranging (artillery sound ranging)

stun grenade / flash grenade / flashbang / thunderflash / sound bomb

sound-flash survey

flash to bang / flash-to-bang (time)

flash-ranging (location), flash-spotting

Siberian Battalion (SB) / Sibir Battalion

sonar (sound navigation and ranging)

observation and fields of fire, avenues of approach, key and decisive terrain,obstacles, and cover and concealment (OAKOC)

smoke and flash defilade

clicking sound

communications by sound

high-intensity sound

sound communication

sound wave

sound-absorbent tile

artillery sound reconnaissance

supersonic speed (exceeds speed of sound / Mach 1)

sound damping

aerial sound ranging

air registration point (in sound ranging)

high-frequency sound waves

sound-proof compartment

background sound pressure level

overall sound pressure level

adjusted slope of sound pressure level

atmospheric sound absorption

change in slope of sound pressure level

slope of sound pressure level

aircraft sound proofing

average slope of sound pressure level

final background sound pressure level

heat insulation-sound proofing