Sound Underwater

[Architex]

I've never been underwater with a detector so I'm wondering - if you go under without headphones can you hear the speaker. Talking about quiet fresh water,not surf or flowing water.

 

[bootyhoundpa]

Might sound like a dumb question but which underwater detectors have speakers on them??

 

[GeorgeinSC]

Even if there was a waterproof speaker you would at best just get some muffled tones. But I also do not know of a detector that you can take underwater that has a speaker.

 

[Architex]

Minelab CTX. White's MX Sport. There may be others.

 

[dewcon4414]

Some of the waterproof machines have some pretty good speaker. Its a drain on batteries thou and ........ with your ears full of water and pressure changes every 13 ft you get more noise than you think..... all your movements are amplified. Sound waves get reduced from the speaker too.

 

[WaterWalker]

The speaker's sound will travel underwater, but at a slower speed than that in air (out of the water) - Law of Physics.
Submarines track audio signals, sea life communicate with each other underwater, try hitting two rocks underwater and
if you are submerged, you will hear the click.
I have never tried listening to the speaker's sound underwater as I always use headphones and I can not stay under water
long enough to do any searching. I therefore am going to assume you will be scuba diving. If so your air bubbles will more
than likely be louder than your detector's audio.
ATPro and ATMax also have a speaker.

 

[bootyhoundpa]

Learn something new every day...

 

[doc holiday232]

The speaker's sound will travel underwater, but at a slower speed than that in air (out of the water) - Law of Physics.
Submarines track audio signals, sea life communicate with each other underwater, try hitting two rocks underwater and
if you are submerged, you will hear the click.
I have never tried listening to the speaker's sound underwater as I always use headphones and I can not stay under water
long enough to do any searching. I therefore am going to assume you will be scuba diving. If so your air bubbles will more
than likely be louder than your detector's audio.
ATPro and ATMax also have a speaker.

Sound travels approximately 4x faster UNDERWater than in air.

 

[WaterWalker]

Well that is what 55 years of learning other important things does to the mind.
Thanks for the correction.
And IF I remember correctly it is because the molecules of water are closer together than those of air.
Now I am wondering what else I have remembered incorrectly, at least I have not messed up on my
wife's name in the 50 years of marriage.

 

[GeorgeinSC]

Sound also travels much farther underwater than in the air. Depth also increases the distance sound can travel. But human ears are not built for good hearing underwater. I spent three years in Puerto Rico and scuba dove. You can hear every bubble that escapes from your mask but you can not hear clearly a person trying to tell you something.

 

[Pyledriver]

You can hear the machine. Using your ears underwater is cheaper than some of the expensive headphones for these machines! The headphones put the sound ‘right there’ so you don’t miss faint signals. If you’re using one of the 10’ machines, they all have speakers. Some may have a sound cutoff but not positive on that.