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HELP ME...
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binary_me
Started Topics :
6
Posts :
226
Posted : Mar 15, 2004 22:53
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thanx for the help man..
  I'm tripping on this KILLER drug these days -HOOCH..... |
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Colin OOOD
Moderator
Started Topics :
95
Posts :
5380
Posted : Mar 15, 2004 23:59
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ZilDoggo
Started Topics :
4
Posts :
663
Posted : Mar 17, 2004 14:14
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binary_me,
what do you exactly mean by superimpose?.
AM is MULTIPLYing one wave with another.
what's funny about it is that the modulator will seem to split up into 2 more frequency components.,
one which is on this frequency: (modulator freq + carrier freq) and one on this frequency (modulator freq - carrier freq)
so if the carrier is 1000Hz and the modulator is 100Hz you will get 2 new frequencies in the end result: 1000hz+100Hz=1100Hz and 1000Hz-100Hz=900Hz.,
usually with AM there is still some of the original carrier signal in the end result (the 1000Hz signal).,
Ring Modulation is a special case of AM where the original carrier signal is completely gone from the end result (so you only have 900Hz and 1100Hz).,
remember that this is about single frequencies., like sine waves.,
if you use more complex waveforms for carrier and modulator then all the modulator harmonics will do exactly the same thing to all carrier harmonics.,!!!
this can be much more complex than the story above but it works the same way.,
hope this helps.,
grts,
aka., |
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binary_me
Started Topics :
6
Posts :
226
Posted : Mar 17, 2004 18:49
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superomposing means changing the amplitude of our sound wave(information signal) with respect to freq. of the carrier...for AM
and i completely agree with rest of ur post...
I'm tripping on this KILLER drug these days -HOOCH..... |
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ZilDoggo
Started Topics :
4
Posts :
663
Posted : Mar 17, 2004 22:48
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"superomposing means changing the amplitude of our sound wave(information signal) with respect to freq. of the carrier...for AM "
i still don't get it., .,.,.,. ,. ,. , ., .,, ,.,..
,..,,.
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binary_me
Started Topics :
6
Posts :
226
Posted : Mar 18, 2004 03:38
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ru trying to make fun of me ?????
I'm tripping on this KILLER drug these days -HOOCH..... |
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WAVELOGIX
Wavelogix
Started Topics :
136
Posts :
1214
Posted : Mar 18, 2004 13:55
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same here binary_me .....
even i still dont get ur conecpt of AM tht u are trying to explain ....
mebbe uve got it wrong ....
who knows ?? ... lol |
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ZilDoggo
Started Topics :
4
Posts :
663
Posted : Mar 18, 2004 14:02
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nope, i never make fun of ppl.,
just trying to help.,
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grts.,
aka., |
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fuzzikitten
Annunaki
Started Topics :
40
Posts :
603
Posted : Mar 18, 2004 14:47
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Hello Binary,
When you say 'superimpose' do you mean 'modulate'?
'Modulate', as best I understand it, means to use one wave, such as a slow moving triangle wave, to change a parameter of another wave.
For example: Let's say I'm listening to a nice buzzy saw wave (osc 1), if I wanted to get a tremelo effect, where I vary the pitch up and down, I could use a second wave (osc2) to modulate the first wave's pitch.
So in effect we are still listening to osc1 and cannot hear osc2. But osc2 is affecting the pitch of osc1 so the result is that we hear the pitch of osc1 bouncing up and down (at the speed of osc2).
This is modulation as I understand it.
Is this what you're asking about? 
Hope it helps,
-Alex
PS: As Colin said, keep it up! |
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ZilDoggo
Started Topics :
4
Posts :
663
Posted : Mar 18, 2004 16:32
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i dont understand it because to me, superimposing a sound ontop of another is just adding one wave to another., in other words just plain old mixing.,
but i think that you are talking about am radio.,
in that case the information is the modulator and the carrier is only used to transfer the information.,
but then why do you want to modulate the modulator?.
anyway, if you talk about am radio then if you have a carrier that has a much higher frequency than the highest frequency in your modulator then you can restore the original modulator signal by looking at how the carrier changes in level., a little like sampling only totaly different.,
this has SOME application in synthesis but in a totaly different way than am radio.,
look up VOSIM synthesis., it's used to make vowel like harmonics., can be good for psy leeds too., but you'll need a modular synth to do it., or write a program .,
aka., |
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binary_me
Started Topics :
6
Posts :
226
Posted : Mar 18, 2004 18:13
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yes i have a little knowledge of AM in radio and i thought it was the same when i saw it in sound forge.....now i guess it is not .....my bad ...and sorry for all the trouble ....and alex thanx man..ur post sure did help ....and thanx zildoggo ...that post was an eye opener....
I'm tripping on this KILLER drug these days -HOOCH..... |
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fuzzikitten
Annunaki
Started Topics :
40
Posts :
603
Posted : Mar 18, 2004 19:24
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Any time!
Keep the questions coming, they keep us on our toes. |
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ZilDoggo
Started Topics :
4
Posts :
663
Posted : Mar 18, 2004 20:15
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greets.,
aka., |
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binary_me
Started Topics :
6
Posts :
226
Posted : Mar 18, 2004 20:29
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hehe
....just a thought .....can clipping be reduced if we reduce any dc level thats in the track???
I'm tripping on this KILLER drug these days -HOOCH..... |
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ZilDoggo
Started Topics :
4
Posts :
663
Posted : Mar 18, 2004 21:38
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yes., but under normal circumstances there will be almost no direct current in your track..,
or do you mean to do it after clipping has occured?.,
then it's pointless.,
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