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WinMLS 2000 Forum

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Subject Sampling frequency difference?

Date Thu Feb 6 2003 21:34
Author Lars Morset (morset@winmls.com)

Dear Steve,
thanks for your message. By looking at the measurement, it seems like the Edirol UA-1A has the same problem as the USB Pre, namely that the sampling frequency of the input is slightly different than the output.

If you want to measure using the MLS method you cannot use this sound device to obtain good results since MLS is very dependent on that the sampling frequency is exactly the same. But you can use the sine sweep method that is available in our beta version. On how to download, see
http://www.nvo.com/winmls/latestbeta/

To get good results with the sine sweep method, you also need to follow the instructions given in
http://www.nvo.com/winmls/nss-folder/discussion1/USBPrewithWinMLSbeta.doc

Other questions about this subject is posted at
http://www.nvo.com/winmls/discussion1

Let me know if this helps. We sell and recommend the Digigram VX pocket v2 for professional users.

Best,
Lars

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