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Pls can you help me with information on any gaget for blocking sound waves or music from speakers?
Well, not sure what you are wanting to do, but when we install a speaker and lets say there is too much bass going through the speaker, we would, depending on the application, add a capacitor inline on the speaker wire. Normally we dont use caps, as most new radios, have bass control and settings on them.
But to answer your question, I am quessing you can use capacitors or coils depending what you want to take away.
The way sound works is through a "sine" wave, which resembles rippling on water the up and down waves, the stronger wave, louder music the higher the sine wave.
A capacitor actually cuts or "clips" a certain hertz from the sine wave, lets see to keep it simple image a sine wave 1 Inch tall. and the capacitor is installed. Depending on the frequency desired, lets say it takes half the sine waves away completely, so the top half of the sine wave is gone and the music associated with that missing clip wouldnt play at all.
but you may not miss the lost sound with everything else, playing.
You could turn down the volume.
Or you could get some Bose noise-canceling headphones.
I have myself been struggling with a similar problem for quite some time now.My problem was how to completely eliminate the distraction caused by human speech when appearing for highly competitive and time-critical exams like the CCIE Lab.Well as far as I know it is not possible to completely block out any sound signal which is not white noise(speech,music....).Apparently the bones above the neck conduct sound so any kind of ear muff/ear plug is ineffective.You can definitely muffle the sound but not eliminate it altogether.The workaround is active noise-cancelling which is to use a different non-disturbing audio signal source(music...) to mask out the distracting audio source.May have something to do with cocktail party effect (blind source separation)..
Will follow this thread for more interesting explanations/solutions.
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