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<blockquote data-quote="squeak9798" data-source="post: 1512166" data-attributes="member: 555320"><p>Yes. That's why you can still feel the rumbling of the "sound" even though you can't physically hear it.</p><p></p><p>You can take an SPL meter and measure the "sound pressure level" of a 10hz note (assuming the SPL meter was designed to register a note that low).</p><p></p><p></p><p>It's just that the sound is below the human's audible threshold of hearing. But that doesn't mean that a "sound" is not existant. <em>You</em> just can't hear it.</p><p></p><p>Same with extremely high frequencies...like dog whistles. You can't hear it, but it still makes sound. And that sound is within the audible range for dogs, and hence it invokes a reaction from them.</p><p></p><p></p><p>0hz means that the speaker cone is moving at zero cycles per second. Or, in other words....standing still. And obviously if the speaker's cone is standing still, it is not making any sound at all.</p><p></p><p></p><p>Hearing loss related too..... ? Any specific reason that they mentioned as to why MP3 players cause hearing loss ?</p></blockquote><p></p>
[QUOTE="squeak9798, post: 1512166, member: 555320"] Yes. That's why you can still feel the rumbling of the "sound" even though you can't physically hear it. You can take an SPL meter and measure the "sound pressure level" of a 10hz note (assuming the SPL meter was designed to register a note that low). It's just that the sound is below the human's audible threshold of hearing. But that doesn't mean that a "sound" is not existant. [I]You[/I] just can't hear it. Same with extremely high frequencies...like dog whistles. You can't hear it, but it still makes sound. And that sound is within the audible range for dogs, and hence it invokes a reaction from them. 0hz means that the speaker cone is moving at zero cycles per second. Or, in other words....standing still. And obviously if the speaker's cone is standing still, it is not making any sound at all. Hearing loss related too..... ? Any specific reason that they mentioned as to why MP3 players cause hearing loss ? [/QUOTE]
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