Originally Posted by jazzutako
Hello, Simon. Thank you for your advice.
Unfortunately I haven't got my answer here or anywhere.

I "Toned" down ( to -9) but it didn't work at all.
Also the overall sound becomes muffled, so I don't like it.

Next I tried BB Five Band EQ. This is better but still hiss noise.
Same as TDR Nova.

Question with these EQ... Can I apply only to some bars (tempo changed bars only)?
because I have no issue with the sound before the tempo change and after it goes back to the normal tempo.

Regards,
Jazzutako

Save the single drum track as a WAV file.
Open that WAV file in Realband.
Set the EQ
Highlight the section you want to change. (you can also use the From-Thru settings to select that section)
Use Edit-AudioEffects-PG 10Band EQ and Process just that highlighted section
Save as WAV file
Import back into BiaB

..or just open the BiaB file in Realband where such edits are easier (but you can still generate and add tracks).
There is probably a way to do this in BiaB also.

As another option you could could transfer the generated drums from the the newer BiaB version to the computer with the older version (as audio) using the same Save As WAV file method. Since the newer version does not generate the offending noise.. if you post the SGU someone will gladly generate it for you if needed using the newer version.

I do not work here, but the benefits are still awesome
Make your sound your own!