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Help please?

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anonymous Tue, 09/02/2003 - 20:33

Alecio,

Thanks so much for taking the trouble to answer the question. Could you please write it in normal English(sorry never went to Princeton)? I am abit confused.

What is TD? Is it Delay Time? Also what is 60E3 and how do you get 500 milliseconds by dividing it by 120 beat per minute?

Also the bit about shorter delays is a bit over my head. More detailed help will be appreciated.

Thanks :roll:

Attached files Image removed.

Alécio Costa Fri, 09/05/2003 - 13:33

you´re wellcomed guys!
Just to remember. with some electronic calculators, ya shall see the E3, so as to save some zeroes in the read out. Why type 100,000 if you can type 100E3?

for example, 100kHz = 100,000 Hz = 100,000cycles/second
2K2 = 2,200Hz = 2,200 cycles/second ok?

Just to help our young brother:

Also useful:
n = nano, means E-9
p = pico, means E-12
u = micro, means E-6
m = mili, means E-3
k =kilo, means E+3
M=mega, means E+6
T=Tera, means E+9

:)

anonymous Sat, 09/06/2003 - 03:04

Hi Guys,
New here and just thought I would lend an old trick to this thread.
What ever happened to "Listening" and "beat matching"??
You don't need to be a math expert to use your ears, it's a very easy thing to do.
Just play with the delay times until it locks-in, you will instantly recognize it!

Hope this helps,
Mike

BTW: This looks like a Great forum and I'm looking forward to sharing some info with everyone.

anonymous Sat, 09/06/2003 - 06:52

Originally posted by Alécio Costa - Brazil:
hahahahaa
VL = L. di/dt
IL = 1/L Integer VL.dt
Ic = C. dq/dt
Z = R +-jx
x = Xl=-Xc
H(s) = 1/ 1+sRC

wow, lots of math msturbation
:)

1.) Instantaneous voltage acros an inductor
2.) Instantaneous current through an inductor
3.) Complex impedance in rectangular coordinates
4.) What's this supposed to be,a point of resonace where inductive reactance equals capacitive reactance?
5.) Laplace Transform,or S domain,representaion of a first order transfer function.

Cool stuff!

Alécio Costa Sun, 09/07/2003 - 14:06

very off topic.. anyway, it is fun:

Z= R+/- jX

The impedance which can be:
Z= R + jXL
Z= R
Z= jXl
Z= R - jXC
Z= -jXC

XL= inductive reatance (delays current from Voltage by ..... degrees)
XC = Capacitive reactance (advances current from voltage by ... degrees)

END. ( The moderators will kick me out of this thread -lol)

falkon2 Sun, 09/07/2003 - 14:42

At a specific frequency, XL and XC will cancel each other out since one is a function of f and the other is an inverse function of f. Also, because impedance is jXL and -jXC. Low impedance = high signal.

This is teh RESONANT FREQUENCY.

(The mod will kick both of us out at once. Because he has two feet)

anonymous Wed, 09/10/2003 - 17:53

Originally posted by falkon2:
Well, tempo = beats per minute. There are 60,000 miliseconds in a minute.

To find the delay you want, you take the inverse of tempo. That would be 1/tempo (in minutes). And there are 60,000 miliseconds in a minute, so you get 60,000/tempo (in miliseconds).

Got it.

Thanks guys,this is an awesome forum.

Johnny