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Apple Watch noise

Discussion in 'General Gun Discussions' started by taliv, Dec 7, 2019.

  1. taliv

    taliv Moderator Staff Member

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    Apple Watch has a noise meter I just noticed. Seems to work pretty well. Let’s you know when ambient noise reaches levels that are unsafe for hearing.

    I’m curious if anyone used it so far at a gun range.
     
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  2. troy fairweather

    troy fairweather Member

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    I'd wonder if it's quick enough for a gun shot.
     
  3. taliv

    taliv Moderator Staff Member

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    It picks up me snapping my fingers or tapping on things
     
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  4. shoobe01

    shoobe01 Member

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    Finger snap peak noise is a couple orders of magnitude slower.

    Even the first shot-spotter systems had to be tweaked for a while to get them to sense fast enough to detect gunfire accurately.

    So... I bet the watch app is not set up to sample fast enough. But it probably could be. Worth trying.
     
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  5. FlSwampRat

    FlSwampRat Member

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    Hmmmmmm something that could detect gunshot noise coupled with a built in gps. Can we have these installed in the Ankle monitors some people have to wear?
     
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  6. taliv

    taliv Moderator Staff Member

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    https://physics.stackexchange.com/questions/118601/what-is-the-duration-of-a-snap measured a snap at 1ms

    depending on how you measure the "peak" (which is obviously only a point at the "peak") you could say it's practically at least .1-.2 ms long

    sampletrace1.gif
     
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  7. taliv

    taliv Moderator Staff Member

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    screenshot of watch at ambient in indoor gun range with just me and the Ventilation system.


    0421A03F-01C1-424C-B4E7-F932EDD5239A.png

    Screenshot of watch after firing unsuppressed
    E3D83745-9E73-4BDE-A7D6-4B78F559C78B.png



    Test gun. Brand new SMITH AND WESSON 22 with antique YHM mite suppressor.
    (edited, thanks Mal)

    09BDE3D8-4185-4F60-97D6-4F3AFC76931D.jpeg




    Screen shot of watch a second after firing suppressed
    8A1052FD-9C4E-4ADF-BFB8-1A9C9EC8F576.png
     
    Last edited: Dec 7, 2019
  8. 460Shooter

    460Shooter Member

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    It’s probably sending that info to a database. Apple is anti gun.

    (Takes of tinfoil hat.).

    I mean cool! That could be useful.
     
  9. taliv

    taliv Moderator Staff Member

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    81EBFC98-6E3E-4E3A-AE07-6F36CA039391.png 502D69E6-665A-49FC-8AF8-488CE7E42EA7.jpeg



    With cci quiet 22 ammo. Won’t cycle
     
  10. Theohazard

    Theohazard Member

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    Yeah, that’s way lower than what it should be reading. A .22 pistol with subsonic ammo (most .22 ammo is subsonic out of a pistol) is going to be around 120 dB in most real-world tests. And it’s not surprising it’s so far off: I had a customer use a dB meter designed for measuring harmful noises at construction sites and he tested it with my 10.5” SBR both suppressed and unsuppressed. It also read way lower than it should have when you compare common tests done with proper silencer-grade dB meters. I’m guessing those kinds of dB meters just can’t handle the quick impulse of a gunshot.
     
    Last edited: Dec 7, 2019
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  11. psyopspec

    psyopspec Member

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    And with the knowledge that some of us own guns (which is ostensibly known if we post on this forum, and doubly so if we make those posts from an Apple device) Apple could do what, exactly?
     
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  12. taliv

    taliv Moderator Staff Member

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    Interestingly placing the watch in front of the muzzle or behind the gun consistently gets the same reading.
     
  13. taliv

    taliv Moderator Staff Member

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    apple isn't nearly as bad as google regarding data privacy

    besides, the data would just be the volume of sound, not the actual sound.
     
  14. 460Shooter

    460Shooter Member

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    I was only kidding. No need to analyze a joke.

    Would be an interesting comparison between indoor and outdoor ranges.
     
    Last edited: Dec 7, 2019
  15. shoobe01

    shoobe01 Member

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    I bet this is picking up the various echos from the range, yup.
     
  16. CapnMac

    CapnMac Member

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    Yeah, these things are mathematically averaged.
    I had an app on the phone so I could know if a given (construction) area's noise warranted hearing protection.
    The app routinely under-reported sound levels when checked (which I suspect has to do with the "flattening" effects of many microphone software installations, and not specifically the app).

    Note, too, above, where the watch's app is reporting numbers below 120 dB, well under what many suppressor manufacturers label as "hearing safe" e.g., <140dB. Please recall that dB follow a logarithmic scale, so 20dB is a very big deal.
     
  17. entropy

    entropy Member

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    Or to put the shoe on the other foot, everybody's phone?
     
  18. Walkalong

    Walkalong Moderator Staff Member

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    Cool, I need to see if Androids have an app.
     
  19. DocRock

    DocRock Member

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    No need for an expensive gimmick watch. For free, brother: Shooting Ranges are dangerously noisy. Wear hearing protection.

    You are welcome. :p
     
  20. Walkalong

    Walkalong Moderator Staff Member

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    It could help people who work around noise levels where they need protection but don't realize it.
     
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  21. doubleh

    doubleh Member

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    I learned long ago that gunfire, even from a lowly 22 rimfire, will damage your hearing and use appropriate protection. I don't need a fancy watch to tell me that.
     
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  22. lysanderxiii

    lysanderxiii Member

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    That's the pressure inside the barrel. Almost all the "noise" in gunfire is the over-pressure at bullet exit, that is much shorter in duration.

    Similar, audio traces done on handguns show that the duration seems to be about 1 to 1.5 millisecond as well.

    A big long paper on the subject.
     
    Last edited: Dec 9, 2019
  23. hso

    hso Moderator Staff Member

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    They tend to falsely report low so the opposite would be the case.
     
  24. FlSwampRat

    FlSwampRat Member

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    Since there are accurate decibel meters to measure sound pressure levels available on Amazon for less than $20 I don't see the point.
     
  25. Walkalong

    Walkalong Moderator Staff Member

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    Well that sucks.
     
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