Hi guys,
MAnalyzer changes the slope when I activate the super resolution mode. That must be a bug, is it? Pink noise is a flat line with slope +3db in normal mode, but I have to change the slope to +1.5db to get a flat line in super resolution mode.
Cheers, Thorsten
MAnalyzer bug?
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ZentralmassivSound ZentralmassivSound https://www.kvraudio.com/forum/memberlist.php?mode=viewprofile&u=344121 - KVRian
- 762 posts since 13 Dec, 2014 from Germany
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MeldaProduction MeldaProduction https://www.kvraudio.com/forum/memberlist.php?mode=viewprofile&u=176122 - KVRAF
- 14339 posts since 15 Mar, 2008 from Czech republic
Hi Thorsten,
interesting point! I actually don't really know right now and don't really have much time to investigate (this is a very complex one), but if you try a saw wave (without smoothing), the results are slightly different, but pretty much the same in average. My guess is that what you see with pink noise is caused by the to-log-domain transformation in lower bands, or even more likely - the undersampled bands for lower frequency analysis are likely to loose energy of the sidebands of frequencies present in higher bands, which shouldn't occur so much for normal signals, but a lot for noise.
interesting point! I actually don't really know right now and don't really have much time to investigate (this is a very complex one), but if you try a saw wave (without smoothing), the results are slightly different, but pretty much the same in average. My guess is that what you see with pink noise is caused by the to-log-domain transformation in lower bands, or even more likely - the undersampled bands for lower frequency analysis are likely to loose energy of the sidebands of frequencies present in higher bands, which shouldn't occur so much for normal signals, but a lot for noise.
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ZentralmassivSound ZentralmassivSound https://www.kvraudio.com/forum/memberlist.php?mode=viewprofile&u=344121
- KVRian
- Topic Starter
- 762 posts since 13 Dec, 2014 from Germany
Wow, seems to be a complex topic. OK so I keep in mind that for spectral comparisons normal mode is better, super resolution is maybe for analyzing specific stuff.