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Originally Posted by ISedlacek  So you recorded 3 clips in 96k, then converted them to 44k and then back to 96k ? |
Yes!
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Unless I miss something in your description, the real point that shows the difference is to record the same source once in 96k, second time in 44k (using the same recording chain). Then to convert 96k file into 44k (using high quality SRC - like r8Brain Pro) and to compare the differences in 44k a to see whether recording originally in 96k brought any sound difference comparing to recording directly in 44k.
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Yes Ivo, that's a test that make sense as well. The reason I didn't such a test this time is because I have allready nailed a small but obvious coloration from the 44.1kS/s loop of the converter I mainly use (Lynx Aurora 8). This time I wanted to get a feeling for the audibility (or absence of) high frequency content in recording of instruments with significant output above 20kHz.
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If you recorded only in 96 k (and that too using rather low end quality converters) and then did just some SRC processes, I am afraid it does not say much - maybe something about the isotope SRC algorithm.
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Audiofire 4 is an excellent converter and certainly good enough for this purpose.
But yes, obviously this test is about two things basically.. a) wether or not an audible difference is there when removing everything above 22khz and b) the quality of iZotope SRC.
If there is an audible difference we can move on and try to investigate if a
or B or possibly a
and b are the explanation.
/Peter