someguy55 Posted August 11, 2018 Posted August 11, 2018 How loud, in dB, is shattering glass (a cup or window) at 1m?
Sensei Posted August 11, 2018 Posted August 11, 2018 On 8/11/2018 at 8:37 AM, someguy55 said: How loud, in dB, is shattering glass (a cup or window) at 1m? Expand Buy decibel meter on e.g. https://www.ebay.com/bhp/decibel-meter then perform experiment, and tell us, what was results, in CSV table with distances... They are for $15-$20. .
someguy55 Posted August 11, 2018 Author Posted August 11, 2018 I asked this here, deliberately, so that I wouldn't need to perform that experiment.
Strange Posted August 11, 2018 Posted August 11, 2018 On 8/11/2018 at 8:37 AM, someguy55 said: How loud, in dB, is shattering glass (a cup or window) at 1m? Expand Depends on the size, thickness and type of glass, how it is mounted/supported, how and where it is broken, and ...
Sensei Posted August 11, 2018 Posted August 11, 2018 On 8/11/2018 at 11:30 AM, Strange said: Depends on the size, thickness and type of glass, how it is mounted/supported, how and where it is broken, and ... Expand ....whether there is echo in closed room, constructive/destructive interference after reflection in exact point where is microphone.. etc. etc. Therefore experiments with sound are performed in "noiseless rooms" (aka "Anechoic chamber") https://en.wikipedia.org/wiki/Anechoic_chamber
someguy55 Posted August 11, 2018 Author Posted August 11, 2018 Yes, but I only need an approximate/inexact value - so I can use it as a reference point against the volume of glass shattering in general
John Cuthber Posted August 11, 2018 Posted August 11, 2018 On 8/11/2018 at 8:51 AM, Sensei said: Buy decibel meter on e.g. https://www.ebay.com/bhp/decibel-meter then perform experiment, and tell us, what was results, in CSV table with distances... They are for $15-$20. . Expand Most sound level meters (and certainly the $20 ones) are not designed for short duration sounds and may give inaccurate answers in this case.
StringJunky Posted August 11, 2018 Posted August 11, 2018 On 8/11/2018 at 12:02 PM, someguy55 said: Yes, but I only need an approximate/inexact value - so I can use it as a reference point against the volume of glass shattering in general Expand i don't think you can. A breaking cup sounds different to a pane of glass. The pane can briefly act like a drum skin and can push air like one, giving a lower frequency component than say a cup. What you are effectively asking is "How long is a piece of string?"
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