Quote:
Originally Posted by Justynfromnz  Hi there...Im not very flash with the old physics , and im not sure if this is the right place to post this , Buuuuut...
I was wondering, if a speaker was playing a 440hz tone (sine) , measured at 50 Db at the speaker , how far away would you need to be before an average persons ear couldn't hear it? Ive ben trying to look at various graphs and calculator thingies online but can't seem to work it out. I am assuming the distance travelled is also frequency dependent. Is this correct? Im just doing some basic plans for an installation ( arty type, not PA) and seeing if an idea i had is viable. Thanks for your help. justyn |
this may help
Peak SPL Calculator Quote:
Originally Posted by nosebleedaudio Everytime you double the distance you loose 6dB SPL. |
i may be missing something here, but wouldn't double the distance mean you would lose 3db not 6 because an increase of 3db means signal output is doubled?
Edit: nvm, you are correct.