Thanks for the speedy reply. Please see attached picture. There are 19 bands instead of 20.

[img align=L]http://www.mediafire.com/conv/4ab8e318fa47451ec449078e8a0e6e8cde2f2fb9a2a5917960e93d8d41e757406g.jpg[/img]

Thanks for the v5.50 update, I have just installed it but the situation has not changed. However, I noticed that changing the sample rate from the "Input Device Setup" (in DigiCheck) affects the number of bands displayed--the greater the sample rate the greater the number of bands. At 192kHz with the 30-band setting selected, 36 bands are displayed. This makes sense, so I don' think this a bug at all, it's more of a labelling issue because the number of bands stated in the settings can be different from the actual number of bands shown in the spectrum analyser. At 48kHz the correct number of bands is displayed.

Do the frequency values shown below each band represent the centre of each band? If so, what do the left-most and right-most values represent (assuming their corresponding bands are indeed low- and high-pass respectively)? How much overlap is there between adjacent bands? Is there a way to know what frequency range covered by a given band? Sorry for asking so many questions, DigiCheck really is such a great tool and I want to fully understand it HeadScratch