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sal
Guest
Guest
Thu Sep 15, 2005 1:39 pm
Here's another link if the other one doesn't work the
Patent number is 4394230
http://www.freepatentsonline.com/4394230.html
Title: Method and apparatus for splitting water molecules
Document Number: United States Patent 4394230
sal <sal_at_spp.net> wrote in news:Xns96D26C294BF6Csalsppnet_at_140.99.99.130:
Quote:
Sorry about that this link should work
I wanted to test this patent out using my sound card
http://www.pat2pdf.org/patents/pat4394230.pdf
"St. John Smythe" <UndisclosedRecipient_at_privacy.net> wrote in
news:dg9cb1$v8j$11_at_n4vu2.n4vu.com:
sal wrote:
I have a program called cool edit pro which allows me to create
different frequency signals on the left and right audio channels
using my sound card. I was wondering if I offset/change the phase
of the signals in a certain way could I simulate an AC signal. I
know the circuit programs Spice and Multisim can due this within the
compnter, but I would like to create an AC TYPE signal using my sound
card if possible...trying to keep it cheap.
Every audio signal you create with the sound card is an AC signal.
Could you be a little more specific?
I wanted to test this patent out using my sound card
http://www.pat2pdf.org/patents/pat4394230.pdf
"St. John Smythe" <UndisclosedRecipient_at_privacy.net> wrote in
news:dg9cb1$v8j$11_at_n4vu2.n4vu.com:
sal wrote:
I have a program called cool edit pro which allows me to create
different frequency signals on the left and right audio channels
using my sound card. I was wondering if I offset/change the phase
of the signals in a certain way could I simulate an AC signal. I
know the circuit programs Spice and Multisim can due this within the
compnter, but I would like to create an AC TYPE signal using my sound
card if possible...trying to keep it cheap.
Every audio signal you create with the sound card is an AC signal.
Could you be a little more specific?
Robert Baer
Guest
Guest
Thu Sep 15, 2005 5:03 pm
sal wrote:
Quote:
Greetings All
Before everyone says use an converter/inverter please read on to see if
what I'm trying to do is possible.
I have a program called cool edit pro which allows me to create different
frequency signals on the left and right audio channels using my sound card.
I was wondering if I offset/change the phase of the signals in a certain
way could I simulate an AC signal. I know the circuit programs Spice and
Multisim can due this within the compnter, but I would like to create an AC
TYPE signal using my sound card if possible...trying to keep it cheap.
Thanks Sal
Err...last time i looked, recorded sound *was* an AC signal.
Before everyone says use an converter/inverter please read on to see if
what I'm trying to do is possible.
I have a program called cool edit pro which allows me to create different
frequency signals on the left and right audio channels using my sound card.
I was wondering if I offset/change the phase of the signals in a certain
way could I simulate an AC signal. I know the circuit programs Spice and
Multisim can due this within the compnter, but I would like to create an AC
TYPE signal using my sound card if possible...trying to keep it cheap.
Thanks Sal
Err...last time i looked, recorded sound *was* an AC signal.
Have you changed any of the laws of physics wheni was not looking?
Rich Grise
Guest
Guest
Thu Sep 15, 2005 11:00 pm
On Wed, 14 Sep 2005 14:25:15 +0000, sal wrote:
Quote:
Greetings All
Before everyone says use an converter/inverter please read on to see if
what I'm trying to do is possible.
I have a program called cool edit pro which allows me to create different
frequency signals on the left and right audio channels using my sound card.
I was wondering if I offset/change the phase of the signals in a certain
way could I simulate an AC signal. I know the circuit programs Spice and
Multisim can due this within the compnter, but I would like to create an AC
TYPE signal using my sound card if possible...trying to keep it cheap.
Before everyone says use an converter/inverter please read on to see if
what I'm trying to do is possible.
I have a program called cool edit pro which allows me to create different
frequency signals on the left and right audio channels using my sound card.
I was wondering if I offset/change the phase of the signals in a certain
way could I simulate an AC signal. I know the circuit programs Spice and
Multisim can due this within the compnter, but I would like to create an AC
TYPE signal using my sound card if possible...trying to keep it cheap.
Just tell cooledit to make a .wav file, and play it with the Windows
sound recorder: Start/Programs/Accessories/Entertainment/Sound Recorder.
Good Luck!
RIch
Anders Nesheim Vinje
Guest
Guest
Fri Sep 16, 2005 8:02 am
You can use the generate -> tones to create ac signals or you cold just
record silence and zoom in to the maximum and then you can manually alter
the "dc" waveform with the mouse to create any desired signal.
Hope this helps.
Anders
"sal" <sal_at_spp.net> wrote in message
news:Xns96D16B82A2E9Dsalsppnet_at_140.99.99.130...
Quote:
Greetings All
Before everyone says use an converter/inverter please read on to see if
what I'm trying to do is possible.
I have a program called cool edit pro which allows me to create different
frequency signals on the left and right audio channels using my sound
card.
I was wondering if I offset/change the phase of the signals in a certain
way could I simulate an AC signal. I know the circuit programs Spice and
Multisim can due this within the compnter, but I would like to create an
AC
TYPE signal using my sound card if possible...trying to keep it cheap.
Thanks Sal
Before everyone says use an converter/inverter please read on to see if
what I'm trying to do is possible.
I have a program called cool edit pro which allows me to create different
frequency signals on the left and right audio channels using my sound
card.
I was wondering if I offset/change the phase of the signals in a certain
way could I simulate an AC signal. I know the circuit programs Spice and
Multisim can due this within the compnter, but I would like to create an
AC
TYPE signal using my sound card if possible...trying to keep it cheap.
Thanks Sal
Spajky
Guest
Guest
Fri Sep 16, 2005 12:40 pm
On Thu, 15 Sep 2005 03:30:23 GMT, sal <sal_at_spp.net> wrote:
Quote:
I was just trying to find a cheap way of using my sound card as a
frequency generator.
frequency generator.
http://www.nch.com.au
NCH Tone Generator
--
Regards , SPAJKY ®
mail addr. @ my site @ http://www.spajky.vze.com
3rd Ann.: - "Tualatin OC-ed / BX-Slot1 / inaudible setup!"
Jasen Betts
Guest
Guest
Fri Sep 16, 2005 8:45 pm
On 2005-09-14, sal <sal_at_spp.net> wrote:
Quote:
Greetings All
I have a program called cool edit pro which allows me to create different
frequency signals on the left and right audio channels using my sound card.
I was wondering if I offset/change the phase of the signals in a certain
way could I simulate an AC signal. I know the circuit programs Spice and
Multisim can due this within the compnter, but I would like to create an AC
TYPE signal using my sound card if possible...trying to keep it cheap.
I have a program called cool edit pro which allows me to create different
frequency signals on the left and right audio channels using my sound card.
I was wondering if I offset/change the phase of the signals in a certain
way could I simulate an AC signal. I know the circuit programs Spice and
Multisim can due this within the compnter, but I would like to create an AC
TYPE signal using my sound card if possible...trying to keep it cheap.
A sine wave at 50 or 60Hz is an "AC type signal", but you'd need a huge
amplifier if you wanted to use it to run any appliances :)
Bye.
Jasen
Jamie
Guest
Guest
Sat Sep 17, 2005 2:40 am
sal wrote:
Quote:
Greetings All
Before everyone says use an converter/inverter please read on to see if
what I'm trying to do is possible.
I have a program called cool edit pro which allows me to create different
frequency signals on the left and right audio channels using my sound card.
I was wondering if I offset/change the phase of the signals in a certain
way could I simulate an AC signal. I know the circuit programs Spice and
Multisim can due this within the compnter, but I would like to create an AC
TYPE signal using my sound card if possible...trying to keep it cheap.
Thanks Sal
Hmm, and i thought that is what the sound card does already ?
Before everyone says use an converter/inverter please read on to see if
what I'm trying to do is possible.
I have a program called cool edit pro which allows me to create different
frequency signals on the left and right audio channels using my sound card.
I was wondering if I offset/change the phase of the signals in a certain
way could I simulate an AC signal. I know the circuit programs Spice and
Multisim can due this within the compnter, but I would like to create an AC
TYPE signal using my sound card if possible...trying to keep it cheap.
Thanks Sal
Hmm, and i thought that is what the sound card does already ?
--
Real Programmers Do things like this.
http://webpages.charter.net/jamie_5
Don Stauffer
Guest
Guest
Mon Sep 19, 2005 1:28 pm
One problem with some of these discussions is that there are two
definitions of DC. One has DC as any signal always of the same polarity,
another requires DC to have the same value throughout time.
DC with a varying voltage but always the same polarity can of course be
changed to AC by running the signal through a capacitor.
Another problem I have seen whose argument reduces to the above is a
pulse width modulated signal but always of the same polarity (if you can
call zero volts a polarity- however, to overcome this problem one can
consider a PWM signal from a small fraction of a volt to many volts).
Another argument I have seen rage from the PWM situation is whether a
PWM signal is analog or digital
Don Bowey
Guest
Guest
Mon Sep 19, 2005 2:35 pm
On 9/19/05 7:28 AM, in article FWzXe.10$tz3.1345_at_news.uswest.net, "Don
Stauffer" <stauffer_at_usfamily.net> wrote:
Quote:
One problem with some of these discussions is that there are two
definitions of DC. One has DC as any signal always of the same polarity,
another requires DC to have the same value throughout time.
DC with a varying voltage but always the same polarity can of course be
changed to AC by running the signal through a capacitor.
Another problem I have seen whose argument reduces to the above is a
pulse width modulated signal but always of the same polarity (if you can
call zero volts a polarity- however, to overcome this problem one can
consider a PWM signal from a small fraction of a volt to many volts).
Another argument I have seen rage from the PWM situation is whether a
PWM signal is analog or digital
definitions of DC. One has DC as any signal always of the same polarity,
another requires DC to have the same value throughout time.
DC with a varying voltage but always the same polarity can of course be
changed to AC by running the signal through a capacitor.
Another problem I have seen whose argument reduces to the above is a
pulse width modulated signal but always of the same polarity (if you can
call zero volts a polarity- however, to overcome this problem one can
consider a PWM signal from a small fraction of a volt to many volts).
Another argument I have seen rage from the PWM situation is whether a
PWM signal is analog or digital
Answering the practical question of a newbie with this type of
hypothetical/metaphysical nonsense is...... Well, garbage.
I wonder if these considerations of DC began with the musings of some
complete idiot, or some idiot with a phd attempting to think outside the box
(an incomplete idiot).
Art
Guest
Guest
Sun Sep 25, 2005 1:21 pm
Technically you may produce PWM signals and convert from Digital to Analog,
the frequency and output for the PWM may be selected to change with the
application of a variable DC voltage input. The Analog signal produced may
be converted to audio or other AC signals per your specific designs. Surely
there are other gifted folk in this forum that will point you to a phloera
of materials explaining exactly how to accomplish this task.
"sal" <sal_at_spp.net> wrote in message
news:Xns96D16B82A2E9Dsalsppnet_at_140.99.99.130...
Quote:
Greetings All
Before everyone says use an converter/inverter please read on to see if
what I'm trying to do is possible.
I have a program called cool edit pro which allows me to create different
frequency signals on the left and right audio channels using my sound
card.
I was wondering if I offset/change the phase of the signals in a certain
way could I simulate an AC signal. I know the circuit programs Spice and
Multisim can due this within the compnter, but I would like to create an
AC
TYPE signal using my sound card if possible...trying to keep it cheap.
Thanks Sal
Before everyone says use an converter/inverter please read on to see if
what I'm trying to do is possible.
I have a program called cool edit pro which allows me to create different
frequency signals on the left and right audio channels using my sound
card.
I was wondering if I offset/change the phase of the signals in a certain
way could I simulate an AC signal. I know the circuit programs Spice and
Multisim can due this within the compnter, but I would like to create an
AC
TYPE signal using my sound card if possible...trying to keep it cheap.
Thanks Sal
Geoff R
Guest
Guest
Thu May 31, 2007 6:06 pm
Don Bowey wrote:
Quote:
On 9/19/05 7:28 AM, in article FWzXe.10$tz3.1345_at_news.uswest.net, "Don
Stauffer" <stauffer_at_usfamily.net> wrote:
One problem with some of these discussions is that there are two
definitions of DC. One has DC as any signal always of the same polarity,
another requires DC to have the same value throughout time.
DC with a varying voltage but always the same polarity can of course be
changed to AC by running the signal through a capacitor.
Another problem I have seen whose argument reduces to the above is a
pulse width modulated signal but always of the same polarity (if you can
call zero volts a polarity- however, to overcome this problem one can
consider a PWM signal from a small fraction of a volt to many volts).
Another argument I have seen rage from the PWM situation is whether a
PWM signal is analog or digital :-)
Answering the practical question of a newbie with this type of
hypothetical/metaphysical nonsense is...... Well, garbage.
I wonder if these considerations of DC began with the musings of some
complete idiot, or some idiot with a phd attempting to think outside the box
(an incomplete idiot).
No, I think that this thread is finally onto what the original poster
Stauffer" <stauffer_at_usfamily.net> wrote:
One problem with some of these discussions is that there are two
definitions of DC. One has DC as any signal always of the same polarity,
another requires DC to have the same value throughout time.
DC with a varying voltage but always the same polarity can of course be
changed to AC by running the signal through a capacitor.
Another problem I have seen whose argument reduces to the above is a
pulse width modulated signal but always of the same polarity (if you can
call zero volts a polarity- however, to overcome this problem one can
consider a PWM signal from a small fraction of a volt to many volts).
Another argument I have seen rage from the PWM situation is whether a
PWM signal is analog or digital :-)
Answering the practical question of a newbie with this type of
hypothetical/metaphysical nonsense is...... Well, garbage.
I wonder if these considerations of DC began with the musings of some
complete idiot, or some idiot with a phd attempting to think outside the box
(an incomplete idiot).
No, I think that this thread is finally onto what the original poster
wanted to know. i.e. does the voltage of the centre pin of the phono
connector stay above the ground connection or does the voltage alternate
between say -1v and +1v. Both of these would generate an audio signal
but only one would be true AC, the other would be pulsed DC.
Having said that, I still don't have an answer to the original poster's
question.
Don Bowey
Guest
Guest
Thu May 31, 2007 9:02 pm
On 5/31/07 10:06 AM, in article dgD7i.14714$RP4.1358_at_newsfe2-win.ntli.net,
"Geoff R" <no_at_spam.please.com> wrote:
Quote:
Don Bowey wrote:
On 9/19/05 7:28 AM, in article FWzXe.10$tz3.1345_at_news.uswest.net, "Don
Stauffer" <stauffer_at_usfamily.net> wrote:
One problem with some of these discussions is that there are two
definitions of DC. One has DC as any signal always of the same polarity,
another requires DC to have the same value throughout time.
DC with a varying voltage but always the same polarity can of course be
changed to AC by running the signal through a capacitor.
Another problem I have seen whose argument reduces to the above is a
pulse width modulated signal but always of the same polarity (if you can
call zero volts a polarity- however, to overcome this problem one can
consider a PWM signal from a small fraction of a volt to many volts).
Another argument I have seen rage from the PWM situation is whether a
PWM signal is analog or digital :-)
Answering the practical question of a newbie with this type of
hypothetical/metaphysical nonsense is...... Well, garbage.
I wonder if these considerations of DC began with the musings of some
complete idiot, or some idiot with a phd attempting to think outside the box
(an incomplete idiot).
No, I think that this thread is finally onto what the original poster
wanted to know. i.e. does the voltage of the centre pin of the phono
connector stay above the ground connection or does the voltage alternate
between say -1v and +1v. Both of these would generate an audio signal
but only one would be true AC, the other would be pulsed DC.
Having said that, I still don't have an answer to the original poster's
question.
On 9/19/05 7:28 AM, in article FWzXe.10$tz3.1345_at_news.uswest.net, "Don
Stauffer" <stauffer_at_usfamily.net> wrote:
One problem with some of these discussions is that there are two
definitions of DC. One has DC as any signal always of the same polarity,
another requires DC to have the same value throughout time.
DC with a varying voltage but always the same polarity can of course be
changed to AC by running the signal through a capacitor.
Another problem I have seen whose argument reduces to the above is a
pulse width modulated signal but always of the same polarity (if you can
call zero volts a polarity- however, to overcome this problem one can
consider a PWM signal from a small fraction of a volt to many volts).
Another argument I have seen rage from the PWM situation is whether a
PWM signal is analog or digital :-)
Answering the practical question of a newbie with this type of
hypothetical/metaphysical nonsense is...... Well, garbage.
I wonder if these considerations of DC began with the musings of some
complete idiot, or some idiot with a phd attempting to think outside the box
(an incomplete idiot).
No, I think that this thread is finally onto what the original poster
wanted to know. i.e. does the voltage of the centre pin of the phono
connector stay above the ground connection or does the voltage alternate
between say -1v and +1v. Both of these would generate an audio signal
but only one would be true AC, the other would be pulsed DC.
Having said that, I still don't have an answer to the original poster's
question.
You attributed the post to me, but I didn't write any part of it.
Since I don't recall the original question, I have no comments.
Don
Don Bowey
Guest
Guest
Thu May 31, 2007 10:30 pm
On 5/31/07 1:02 PM, in article C28477FC.69535%dbowey_at_comcast.net, "Don
Bowey" <dbowey_at_comcast.net> wrote:
Quote:
On 5/31/07 10:06 AM, in article dgD7i.14714$RP4.1358_at_newsfe2-win.ntli.net,
"Geoff R" <no_at_spam.please.com> wrote:
Don Bowey wrote:
On 9/19/05 7:28 AM, in article FWzXe.10$tz3.1345_at_news.uswest.net, "Don
Stauffer" <stauffer_at_usfamily.net> wrote:
One problem with some of these discussions is that there are two
definitions of DC. One has DC as any signal always of the same polarity,
another requires DC to have the same value throughout time.
DC with a varying voltage but always the same polarity can of course be
changed to AC by running the signal through a capacitor.
Another problem I have seen whose argument reduces to the above is a
pulse width modulated signal but always of the same polarity (if you can
call zero volts a polarity- however, to overcome this problem one can
consider a PWM signal from a small fraction of a volt to many volts).
Another argument I have seen rage from the PWM situation is whether a
PWM signal is analog or digital :-)
Answering the practical question of a newbie with this type of
hypothetical/metaphysical nonsense is...... Well, garbage.
I wonder if these considerations of DC began with the musings of some
complete idiot, or some idiot with a phd attempting to think outside the box
(an incomplete idiot).
No, I think that this thread is finally onto what the original poster
wanted to know. i.e. does the voltage of the centre pin of the phono
connector stay above the ground connection or does the voltage alternate
between say -1v and +1v. Both of these would generate an audio signal
but only one would be true AC, the other would be pulsed DC.
Having said that, I still don't have an answer to the original poster's
question.
You attributed the post to me, but I didn't write any part of it.
Since I don't recall the original question, I have no comments.
Don
"Geoff R" <no_at_spam.please.com> wrote:
Don Bowey wrote:
On 9/19/05 7:28 AM, in article FWzXe.10$tz3.1345_at_news.uswest.net, "Don
Stauffer" <stauffer_at_usfamily.net> wrote:
One problem with some of these discussions is that there are two
definitions of DC. One has DC as any signal always of the same polarity,
another requires DC to have the same value throughout time.
DC with a varying voltage but always the same polarity can of course be
changed to AC by running the signal through a capacitor.
Another problem I have seen whose argument reduces to the above is a
pulse width modulated signal but always of the same polarity (if you can
call zero volts a polarity- however, to overcome this problem one can
consider a PWM signal from a small fraction of a volt to many volts).
Another argument I have seen rage from the PWM situation is whether a
PWM signal is analog or digital :-)
Answering the practical question of a newbie with this type of
hypothetical/metaphysical nonsense is...... Well, garbage.
I wonder if these considerations of DC began with the musings of some
complete idiot, or some idiot with a phd attempting to think outside the box
(an incomplete idiot).
No, I think that this thread is finally onto what the original poster
wanted to know. i.e. does the voltage of the centre pin of the phono
connector stay above the ground connection or does the voltage alternate
between say -1v and +1v. Both of these would generate an audio signal
but only one would be true AC, the other would be pulsed DC.
Having said that, I still don't have an answer to the original poster's
question.
You attributed the post to me, but I didn't write any part of it.
Since I don't recall the original question, I have no comments.
Don
I went back and read the complete thread and looked through the patent file.
Here are my few comments:
The apparatus called for in the application requires both a Carrier
frequency that will vary in the range of 200 Hz. to 200 kHz., and a
Modulating frequency which will vary in the range of 20 Hz. To 200 Hz.
Obviously, an AM modulator is required, as is a Power Amplifier. Beyond
that it is all adaptive of frequencies and wave-shapes such that they can be
altered by the gas conversion process.
There is nothing in the computer's sound card that will enable the gas
conversion process.
Yes, your sound card puts out an AC signal (tones and whatever).
Don
Lionel
Guest
Guest
Fri Jun 01, 2007 3:16 am
Don Bowey wrote:
Quote:
On 5/31/07 10:06 AM, in article dgD7i.14714$RP4.1358_at_newsfe2-win.ntli.net,
"Geoff R" <no_at_spam.please.com> wrote:
Don Bowey wrote:
On 9/19/05 7:28 AM, in article FWzXe.10$tz3.1345_at_news.uswest.net, "Don
Stauffer" <stauffer_at_usfamily.net> wrote:
One problem with some of these discussions is that there are two
definitions of DC. One has DC as any signal always of the same polarity,
another requires DC to have the same value throughout time.
DC with a varying voltage but always the same polarity can of course be
changed to AC by running the signal through a capacitor.
Another problem I have seen whose argument reduces to the above is a
pulse width modulated signal but always of the same polarity (if you can
call zero volts a polarity- however, to overcome this problem one can
consider a PWM signal from a small fraction of a volt to many volts).
Another argument I have seen rage from the PWM situation is whether a
PWM signal is analog or digital :-)
Answering the practical question of a newbie with this type of
hypothetical/metaphysical nonsense is...... Well, garbage.
I wonder if these considerations of DC began with the musings of some
complete idiot, or some idiot with a phd attempting to think outside the box
(an incomplete idiot).
No, I think that this thread is finally onto what the original poster
wanted to know. i.e. does the voltage of the centre pin of the phono
connector stay above the ground connection or does the voltage alternate
between say -1v and +1v. Both of these would generate an audio signal
but only one would be true AC, the other would be pulsed DC.
Having said that, I still don't have an answer to the original poster's
question.
You attributed the post to me, but I didn't write any part of it.
Since I don't recall the original question, I have no comments.
"Geoff R" <no_at_spam.please.com> wrote:
Don Bowey wrote:
On 9/19/05 7:28 AM, in article FWzXe.10$tz3.1345_at_news.uswest.net, "Don
Stauffer" <stauffer_at_usfamily.net> wrote:
One problem with some of these discussions is that there are two
definitions of DC. One has DC as any signal always of the same polarity,
another requires DC to have the same value throughout time.
DC with a varying voltage but always the same polarity can of course be
changed to AC by running the signal through a capacitor.
Another problem I have seen whose argument reduces to the above is a
pulse width modulated signal but always of the same polarity (if you can
call zero volts a polarity- however, to overcome this problem one can
consider a PWM signal from a small fraction of a volt to many volts).
Another argument I have seen rage from the PWM situation is whether a
PWM signal is analog or digital :-)
Answering the practical question of a newbie with this type of
hypothetical/metaphysical nonsense is...... Well, garbage.
I wonder if these considerations of DC began with the musings of some
complete idiot, or some idiot with a phd attempting to think outside the box
(an incomplete idiot).
No, I think that this thread is finally onto what the original poster
wanted to know. i.e. does the voltage of the centre pin of the phono
connector stay above the ground connection or does the voltage alternate
between say -1v and +1v. Both of these would generate an audio signal
but only one would be true AC, the other would be pulsed DC.
Having said that, I still don't have an answer to the original poster's
question.
You attributed the post to me, but I didn't write any part of it.
Since I don't recall the original question, I have no comments.
You know nothing about electronics, motherfucker. You are an amateur.
--
\___ Proud Cog #1 in the AUK Hate Machine
_(AUK)====:: Do *you* think that you have the Right Stuff?
/='='='='-, Apply TODAY by addressing a gratuitously cruel
(O+O+O+O+O) flame to: "Uncle Fester", C/O soc.singles & AUK.
~^^^^^^^^^~~~^~^^~'~~^'^~~~"~~'"~^~'"~~^~"~'~^'^~^~^^~^~"~^~"'~'"~^~~
Don Bowey
Guest
Guest
Fri Jun 01, 2007 3:24 am
On 5/31/07 7:16 PM, in article
465f80a1$0$15926$9a6e19ea_at_news.newshosting.com, "Lionel"
<usenet_at_imagenoir.org> wrote:
Quote:
Don Bowey wrote:
On 5/31/07 10:06 AM, in article dgD7i.14714$RP4.1358_at_newsfe2-win.ntli.net,
"Geoff R" <no_at_spam.please.com> wrote:
Don Bowey wrote:
On 9/19/05 7:28 AM, in article FWzXe.10$tz3.1345_at_news.uswest.net, "Don
Stauffer" <stauffer_at_usfamily.net> wrote:
One problem with some of these discussions is that there are two
definitions of DC. One has DC as any signal always of the same polarity,
another requires DC to have the same value throughout time.
DC with a varying voltage but always the same polarity can of course be
changed to AC by running the signal through a capacitor.
Another problem I have seen whose argument reduces to the above is a
pulse width modulated signal but always of the same polarity (if you can
call zero volts a polarity- however, to overcome this problem one can
consider a PWM signal from a small fraction of a volt to many volts).
Another argument I have seen rage from the PWM situation is whether a
PWM signal is analog or digital :-)
Answering the practical question of a newbie with this type of
hypothetical/metaphysical nonsense is...... Well, garbage.
I wonder if these considerations of DC began with the musings of some
complete idiot, or some idiot with a phd attempting to think outside the
box
(an incomplete idiot).
No, I think that this thread is finally onto what the original poster
wanted to know. i.e. does the voltage of the centre pin of the phono
connector stay above the ground connection or does the voltage alternate
between say -1v and +1v. Both of these would generate an audio signal
but only one would be true AC, the other would be pulsed DC.
Having said that, I still don't have an answer to the original poster's
question.
You attributed the post to me, but I didn't write any part of it.
Since I don't recall the original question, I have no comments.
You know nothing about electronics, motherfucker. You are an amateur.
On 5/31/07 10:06 AM, in article dgD7i.14714$RP4.1358_at_newsfe2-win.ntli.net,
"Geoff R" <no_at_spam.please.com> wrote:
Don Bowey wrote:
On 9/19/05 7:28 AM, in article FWzXe.10$tz3.1345_at_news.uswest.net, "Don
Stauffer" <stauffer_at_usfamily.net> wrote:
One problem with some of these discussions is that there are two
definitions of DC. One has DC as any signal always of the same polarity,
another requires DC to have the same value throughout time.
DC with a varying voltage but always the same polarity can of course be
changed to AC by running the signal through a capacitor.
Another problem I have seen whose argument reduces to the above is a
pulse width modulated signal but always of the same polarity (if you can
call zero volts a polarity- however, to overcome this problem one can
consider a PWM signal from a small fraction of a volt to many volts).
Another argument I have seen rage from the PWM situation is whether a
PWM signal is analog or digital :-)
Answering the practical question of a newbie with this type of
hypothetical/metaphysical nonsense is...... Well, garbage.
I wonder if these considerations of DC began with the musings of some
complete idiot, or some idiot with a phd attempting to think outside the
box
(an incomplete idiot).
No, I think that this thread is finally onto what the original poster
wanted to know. i.e. does the voltage of the centre pin of the phono
connector stay above the ground connection or does the voltage alternate
between say -1v and +1v. Both of these would generate an audio signal
but only one would be true AC, the other would be pulsed DC.
Having said that, I still don't have an answer to the original poster's
question.
You attributed the post to me, but I didn't write any part of it.
Since I don't recall the original question, I have no comments.
You know nothing about electronics, motherfucker. You are an amateur.
How would you know, you useless moron?
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