Test your Hydrophone skills
 

Number your papers one through ten

listen to the following hydrophone recordings and make an attempt to identify these sounds 10.

http://hnsa.org/sound/sonobuoy2/record13.mov

Answers will be posted soon.

have fun! :arrgh!:

Ok a few I couldnt get but I give it a crack

1.Machinery - Destroyer
2.Prop-Sub
3.Machinery-sub
4.Prop-Merchant
5.Sounded like a water pump
6.More like a jackhammer wiedest noise
7.dunno
8.dunno
9.machinery-merchant
10.Prop and Machinery-Warship

1. Nothing - ambient water
2. Subarine Prop Beats
3. Machinery Onboars sub or other boat
4. Nothing, Ambient Water
5. Submarine dive plane motors
6. Mine Sweeper Sonar
7. Sub prop beats with onboard machinery running
8. Biologics
9. Submarine battery recharge
10. Submarine with depth charge exoplosion

Sonar recording of attack and destruction of I-52

http://www.hnsa.org/sound/sonobuoy2/record19.mov
http://www.hnsa.org/sound/sonobuoy2/record20.mov

Attack on Imperial Japanese Navy submarine I-52:
These are two wires recording by the second aircraft sent by USS Bogue. Note that I-52 had already been sunk by the first aircraft. The propeller noise heard are from a German submarine in the area. However, the crew of the aircraft did not know this. It is interesting to hear the real rhythm of the 3 man crew working to find the target. It is also interesting how the training record above mixed the sounds from these recordings with those from the first plane's attack for dramatic effect. These two wires survived in the collection of the NUWC Division Newport and later transferred to the US National Archives in College Park, MD. The NARA reference information is RG-38, 273, 1 and RG-38, 273, 2.

that would be one helluva way to go out :nope:

i think the punching sounds were the boat breaking up, but i cant really tell....

helpful bump:D