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In Reply to: RE: Thanks John. Some questions... posted by tonyptony on February 06, 2016 at 10:13:03
I used the Denon test record stipulated in the graph's title, which contained individual sinusoidal spot frequencies. I don't remember what settings I used on the spectrum analyzer. The spot frequency measurements were manually loaded into a Microsoft Excel spreadsheet for graphing.The two graphs below are identical. The second graph simply connects the dots with smooth lines.
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Edits: 02/06/16Follow Ups:
John, Are you using Sound Forge for the Mac? If so, what version gives you the audio spectrum analyzer function? Thanks.
It was version 7 for PC. I don't use a Mac.
They make several products for the Mac, but on their website it's difficult for me (as one who is not familiar with the jargon) to determine which ones will do what I want to do, which involves having audio spectrum analysis function on a Mac laptop. Perhaps I will contact them and ask which Mac-specific problems mimic version 7 for PC.
Looked around some and can't seem to locate one.
eBay has a feature you can enable which notifies you with an email when rare items come up for sale. I was eventually able to piece together complete collections of both the Denon and CBS test disc suites. Though I'm sure I paid a bit more than retail on some.
I could kick myself for not buy Denon's Wow & Flutter test record, XG-7004, when I had the opportunity. I bought only three, XG-7002, XG-7003, and XG-7005.
Is there a way to set azimuth with volt meter and test record?
If you intend to use a broadband AC voltmeter to measure signal level and crosstalk, you will also need a narrow bandpass filter centered on the test frequency in order to isolate the crosstalk signal from vinyl surface noise. Otherwise, you will not get an accurate measurement of the crosstalk signal because it will be obscured by the noise floor.Best regards,
John Elison
Edits: 03/04/16
Nothing is easy.Thanks John!
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