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Author Topic: All pass filter ???  (Read 6283 times)

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jbrs128

  • Guest
All pass filter ???
« on: March 29, 2008, 08:39:02 AM »
I read that these exists. But i do not know still what's the use?

Very strange. Does anyone have a clue?

Andre

  • Guest
Re: All pass filter ???
« Reply #1 on: March 31, 2008, 22:15:03 PM »
All pass filter? What is the use of this? Where did you read it.

jbrs128

  • Guest
Re: All pass filter ???
« Reply #2 on: April 02, 2008, 00:18:05 AM »
I was googling around one night and found it.
I do not really remember when and where and for what. :(

methos

  • Guest
Re: All pass filter ???
« Reply #3 on: April 03, 2008, 19:33:25 PM »
It is a filter that actually filters no frequency range, but gives a phase shift only.

SiEger

  • Guest
Re: All pass filter ???
« Reply #4 on: April 03, 2008, 23:38:54 PM »
And what is phase shift if i may? Sorry for the interrupt  ;D

Erkeli

  • Guest
Re: All pass filter ???
« Reply #5 on: April 04, 2008, 11:30:50 AM »
Phase shift is when for example, during time, the sine wave starts a little bit slower or faster than normal. If for example you have a sine wave of 1 Hz and it starts from 0 on time, with phase shift you have the same sine wave but it starts a little bit more on the right, at 1/4 PI for example...

Andre

  • Guest
Re: All pass filter ???
« Reply #6 on: April 06, 2008, 13:32:51 PM »
Yep. i searched the internet. Frequency shifter is also called all pass filter...

jbrs128

  • Guest
Re: All pass filter ???
« Reply #7 on: April 07, 2008, 23:16:21 PM »
You are absolutely right. Thank you for your help!