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Registered: 01/15/05
Posts: 15,427
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Re: Analog vs. Digital [Re: xFrockx]
    #8652166 - 07/18/08 05:49 PM (15 years, 10 months ago)

do you know why 44.1k was picked?

because the rule of sample rates is double the highest frequency. it makes sense this way: lets say you have a 20k sine wave.... you have its rarefaction and its compression... so you would need atleast two sample points to digitally express an analogue sine wave....

as the frequency gets higher, like 20k, the wave is extremely short, so if you only had 36k sample rate, you wouldnt even have a representation of it, you would only catch the rarefaction, or compression.
if you want to represent 100 hertz digitally, you would only need 200 samples per second.

but a few people here claim that digital can never replace analogue... which is false.
I often wonder why this same argument was never made for film. think about it, film is the exact same thing as sample rates.. it just so happens that 24 fps or whatever the standard is now is enough to mimic our analogue perception.
same applies to digital audio... we have already reached a sample rate that mimics our analogue perception of it.

I konw this isnt P&S material post.... but here is one thing I would like to add.
Digital audio will be able to out perform analogue and give way to greater audio quality than analogue could ever hope for.

with digital advancements we will be able to make your home stereo system replicate live concerts, but allow you to choose wherever you want to be at... like on stage next to pete townsend or behind the drummer... and it wont stop there... make it sound as if the vocals are coming from your head and the kick is emanating from your sternum.

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Registered: 11/12/07
Posts: 7,091
Loc: Australia
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Re: Analog vs. Digital [Re: SneezingPenis]
    #8652184 - 07/18/08 05:54 PM (15 years, 10 months ago)

Yes, it's called the Nyquist theorem :smile:

I know... that just the smallest
                                                part of the world belongs to me
You know... I'm not a blind man
                                                    but truth is the hardest thing to see

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