KVR Audio

kmonkey · Post by **kmonkey** » Tue Jul 15, 2014 9:47 am

This kind of thread happens when people have a lot of time to waste - i guess

stonestreet · Post by **stonestreet** » Tue Jul 15, 2014 9:49 am

metamorphosis wrote:2 is the most ancient number, because it takes two to tango.
Tango is ancient.
Think about it.
Think

Yeah, it takes 2 for the game of reality to begin, 2 to make an agreement on what these grunts and hisses mean.

Doug1978 · Post by **Doug1978** » Tue Jul 15, 2014 9:51 am

kmonkey wrote:This kind of thread happens when people have a lot of time to waste - i guess

You should know

whyterabbyt · Post by **whyterabbyt** » Tue Jul 15, 2014 10:00 am

i'm sure you've heard the excuses but still in your heart wonder why. now you will really know.

why 44100?

44100 / 10*10 = 441

that's 441 samples for one hundredth of a second of audio at 44.1k. please note that 10 is one of the most ancient numbers. And we squared it, because squaring things, or finding square roots 'means' something, obviously.

Well the square root of 441 just happens to be a number you can derive from some other numbers in some way, because deriving numbers in some way means something too. And like any number you can derive, there's the usual numerological hodgepodge of dubious significances ie in this instance for the number 21 there's the usual shitload : http://www.ridingthebeast.com/numbers/nu21.php,

(But wait, there's more to pull out of it by buggering around with it in some allegedly 'significant' way. So that's just the starting point because 21 is the sequence (2,1) , so that's 1 and 2 which are significant and 1+2 = 3 so we've got all the significances for 3 as well, but 21/3 is 7, so we throw in the stuff for 7, and blah blah blah an endless cascade of apophenia in action.)

Lookie ma, I can do numerology.

nimets · Post by **nimets** » Tue Jul 15, 2014 10:59 am

Maybe all of you know already, but I didn't and I found the explanation quite interesting.
(source: http://en.wikipedia.org/wiki/44,100_Hz)

The sample rate was chosen to match both PAL and NTSC standards on VCRs.
And actually the dividers of 44100 are important, too (3,50, 60, 245, 294).

ghettosynth · Post by **ghettosynth** » Tue Jul 15, 2014 11:05 am

I'm feeling boring.

From John Watkinson, The Art of Digital Audio, 2nd edition, pg. 104:

In the early days of digital audio research, the necessary bandwidth of about 1 Mbps per audio channel was difficult to store. Disk drives had the bandwidth but not the capacity for long recording time, so attention turned to video recorders. These were adapted to store audio samples by creating a pseudo-video waveform which would convey binary as black and white levels. The sampling rate of such a system is constrained to relate simply to the field rate and field structure of the television standard used, so that an integer number of samples can be stored on each usable TV line in the field. Such a recording can be made on a monochrome recorder, and these recording are made in two standards, 525 lines at 60 Hz and 625 lines at 50 Hz. Thus it is possible to find a frequency which is a common multiple of the two and is also suitable for use as a sampling rate.

The allowable sampling rates in a pseudo-video system can be deduced by multiplying the field rate by the number of active lines in a field (blanking lines cannot be used) and again by the number of samples in a line. By careful choice of parameters it is possible to use either 525/60 or 625/50 video with a sampling rate of 44.1KHz.

In 60 Hz video, there are 35 blanked lines, leaving 490 lines per frame or 245 lines per field, so the sampling rate is given by :

60 X 245 X 3 = 44.1 KHz

In 50 Hz video, there are 37 lines of blanking, leaving 588 active lines per frame, or 294 per field, so the same sampling rate is given by

50 X 294 X3 = 44.1 Khz.

The sampling rate of 44.1 KHz came to be that of the Compact Disc. Even though CD has no video circuitry, the equipment used to make CD masters is video based and determines the sampling rate.

Doug1978 · Post by **Doug1978** » Tue Jul 15, 2014 11:14 am

^^ nimets and ghettosynth
*cough, pg 1*

nimets · Post by **nimets** » Tue Jul 15, 2014 11:17 am

so, lesson learned for me today:
do not start to read a thread on page 2...

Doug1978 · Post by **Doug1978** » Tue Jul 15, 2014 11:18 am

Though in fairness, both of your answers were more thorough and better explained than mine!

vurt · Post by **vurt** » Tue Jul 15, 2014 12:03 pm

i done a answer
but my cat eated it

ghettosynth · Post by **ghettosynth** » Tue Jul 15, 2014 1:15 pm

Doug1978 wrote:^^ nimets and ghettosynth
*cough, pg 1*

Yeah man, I saw your post, I was just trying to fill in boring details. If I were feeling more interesting earlier this morning I would have played along.

The_Hidden_Goose · Post by **The_Hidden_Goose** » Tue Jul 15, 2014 1:31 pm

Crowley would be proud.

Or angry.

Or indifferent, maybe.

But he would be, and no mistake.

vurt · Post by **vurt** » Tue Jul 15, 2014 2:22 pm

my hero!
my new studio is even called "the nightmare room"
if i thought introducing the gf to throbbing gristle was bad, introducing her to crowley was insane!
she came around to it in the end though. thats as much as i can say without getting banned or investigated by the police, possibly.

The_Hidden_Goose · Post by **The_Hidden_Goose** » Tue Jul 15, 2014 2:49 pm

"Crowley plays with his black balls"

Whenever I read Robert Rankin books with Hugo Rune in them, I always think of Crowley. I'm half-certain that's the idea - he's bold, bolshie, bombastic...and bald.

RunBeerRun · Post by **RunBeerRun** » Tue Jul 15, 2014 4:17 pm

Nothing is ever hidden or secret but lies.

I'm buying super T-Pain pro and will be big and you will worship my image of death.

secret meaning of 44.1kHz