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Transfer Function without direct input
PostPosted: Sat Jul 04, 2015 1:54 pm Reply with quote
Niick
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Joined: 07 May 2015
Posts: 25
Location: Portland, OR USA




Is it possible to acquire the transfer function of a system that you have no way of directly inputting a signal into? Like many OEM Automotive systems for example, don't have any kind of input, just the ability to play a CD or read files from a USB drive.
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PostPosted: Sat Jul 04, 2015 2:41 pm Reply with quote
AFMG Pedro Lima
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Joined: 05 Jun 2010
Posts: 235
Location: Brazil




Hi,

There are a number of test CDs with pink noise or the like you can use as stimuli signal. But you will only be able to look at the spectrum, not the transfer function.

I mean, the magnitude relationships per frequency bin you will be able to see, but not the phase.

HTH,
Pedro
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Transfer Function without direct input
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