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takahiro.yamamoto - 23:13 Friday 07 July 2023 (25903) Print this report
Comment to Violin mode peak identification in DARM spectrum (25876)

Frequency values shown by Tamaki-kun seems 0.125Hz resolution. But he measured with 1mHz resolution according to his klog.
It may be better to check the reason why all frequency shows .125, .375, .500, ...

Anyway, I tried to add the annotation for the nearest peak of DARM sensitivity with 1/1024Hz resolution as shown in Fig.1.
All peaks are matched within 0.06125Hz (=0.125 / 2) between Tamaki-kun's list and DARM peaks with 1/1024Hz resolution.
So almost all annotations seem to be reasonable if my assumption that Tamaki-kun's list is 0.125Hz resolution is correct.

On the other hand, we can see two-peak pairs that frequencies are close within 0.1Hz such as
- 167.103Hz and 167.195Hz (correspond to the ETMX 167.125Hz in Tamaki-kun's list)
- 181.760Hz and 181.837Hz (correspond to the ETMY 181.875Hz)
These two annotations may be wrong.

Though the 1st violins located from 165-195Hz, peaks which seems to be the 2nd violin located above 400Hz instead of 330-390Hz as shown in Fig.2.
I had though the 2nd violins located roughly twice frequency of the 1st violin.
Is the difference of a few tens Herz from twice frequency of the 1st violin reasonable?

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