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Laptop sound amplification?
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Verte
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RE: RE: Laptop sound amplification?
quote:
Originally posted by Voldemort
quote:
Loudness, a subjective measure, is often confused with objective measures of sound intensity such as decibels.
I meant that it won't increase sound intensity, which is what ZrednaZ wants.



In absolute measures, with perfect speakers etc, you're right. On the other hand, given the resonance of the speaker and the ear, cutting the bass allows more energy to move in the more efficient part of the spectrum. As an example, consider earphones. If you turn the volume right up and move away, you only hear the cymbals and other high-frequency sounds. They are actually a lot better at creating high frequency sound, although stuck in your ear there is no where for the low sounds to go, which makes up for that.

The other important thing is that we actually hear the time-derivative of the speaker movement. For a speaker moving at a low frequency to displace the same amount of air per second as one at a higher frequency, it will need to move further. Considering speakers can only move a certain distance from center before they distort [just as important, they can only move a certain distance before saturating their power supply], speakers are usually more efficient at higher frequencies.

Laptop speakers are usually about 5cm in diameter, which means they have good midrange output. Rolling off the low frequencies allows the midrange to get closer to saturation. Yes, you lose quality, but the difference in perceived volume can be quite significant [easily +10db, not counting inner ear resonance which is more pronounced in the midrange].
was put impeccably into words at DebianDay for me last Saturday, by Knut Yrvin of Trolltech - adults try something once, fail, and then are like "ffs this doesn't work". Children try, fail, and then try again, and succeed - maybe on the second, or even fifth retry. But the thing is that they keep at it and overcome the problems in the end.

-andrewdodd13
07-27-2007 03:36 AM
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Messages In This Thread
Laptop sound amplification? - by ZrednaZ on 07-25-2007 at 09:53 PM
RE: Laptop sound amplification? - by Nathan on 07-25-2007 at 10:23 PM
RE: Laptop sound amplification? - by ZrednaZ on 07-25-2007 at 10:41 PM
RE: Laptop sound amplification? - by Nathan on 07-25-2007 at 10:43 PM
RE: Laptop sound amplification? - by Voldemort on 07-25-2007 at 11:28 PM
RE: Laptop sound amplification? - by Nathan on 07-25-2007 at 11:29 PM
RE: Laptop sound amplification? - by Voldemort on 07-25-2007 at 11:32 PM
RE: Laptop sound amplification? - by CookieRevised on 07-25-2007 at 11:38 PM
RE: Laptop sound amplification? - by Voldemort on 07-25-2007 at 11:44 PM
RE: RE: Laptop sound amplification? - by CookieRevised on 07-25-2007 at 11:55 PM
RE: Laptop sound amplification? - by Nathan on 07-25-2007 at 11:51 PM
RE: Laptop sound amplification? - by Voldemort on 07-25-2007 at 11:55 PM
RE: Laptop sound amplification? - by Nathan on 07-25-2007 at 11:56 PM
RE: Laptop sound amplification? - by Voldemort on 07-25-2007 at 11:56 PM
RE: RE: Laptop sound amplification? - by Verte on 07-26-2007 at 02:06 PM
RE: Laptop sound amplification? - by Nathan on 07-25-2007 at 11:57 PM
RE: Laptop sound amplification? - by ZrednaZ on 07-26-2007 at 07:57 AM
RE: Laptop sound amplification? - by Voldemort on 07-26-2007 at 04:46 PM
RE: RE: Laptop sound amplification? - by Verte on 07-27-2007 at 03:36 AM
RE: Laptop sound amplification? - by ZrednaZ on 07-28-2007 at 11:53 PM
RE: Laptop sound amplification? - by andrewdodd13 on 07-29-2007 at 10:59 AM
RE: Laptop sound amplification? - by Nefzen on 07-29-2007 at 12:56 PM
RE: RE: Laptop sound amplification? - by Phillip on 07-29-2007 at 02:34 PM
RE: Laptop sound amplification? - by Jesus on 07-29-2007 at 05:38 PM
RE: Laptop sound amplification? - by CookieRevised on 07-30-2007 at 06:06 AM
RE: Laptop sound amplification? - by ZrednaZ on 08-02-2007 at 08:51 PM


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