Is there any software program that can take white noise as input from an external source and provide freq response of that source ? For example, I would like to record/input a track of white noise that is on a vinyl record or a tape and get the freq response from the program.
Most popular programs work in a loopback fashion so they have to record the same signal they output but I need something that can work with an externally produced signal like in my example.
Most popular programs work in a loopback fashion so they have to record the same signal they output but I need something that can work with an externally produced signal like in my example.
Technically what you want is not a freq response, as a freq response would be the response of the source to an external input.
What you want is the noise level over frequency of a source. So you want a noise level graph. Indeed, I think REW can do it, as can ARTA or any of the other free analysis programs.
Jan
There is no freq response as such. A freq response is the relation of input to out put and in your case there is no input, you just look at what is on the record, if I understand you.
It would be a freq response if you would cut the record with a noise signal and then compare with what comes off it.
You want to look at noise over frequency I think. Just take a record and look at the noise on it. I presume you will look at a no-signal run-in or run-out groove?
Jan
It would be a freq response if you would cut the record with a noise signal and then compare with what comes off it.
You want to look at noise over frequency I think. Just take a record and look at the noise on it. I presume you will look at a no-signal run-in or run-out groove?
Jan
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