Is this program accurate with 24 bit 48 khz as it's with 16 bit 44 khz?

[darkangel93]

CONTENTS DELETED

The author has deleted this message.

[Fake No Funk]

The "problem" with 48kHz files is, that FTF will expect frequencies up to 24,000 Hz.
(For 44kHz, the max. frequency is "only" 22.000 Hz)

A "clean" 48kHz file should show a spectum up to 24.000 Hz. If it only shows frequencies up to 22.000 Hz, then FTF assumes that it is not a "true 48 Khz" version, because it looks like it's just "upscaled" from a (high quality) 44 kHz verison.

However, it **IS** a high quality file,

You can use the options dialog to "allow cutoffs above .... Hz" if you feel that your 48 kHz versions are real.
If you rip them from a CD that was mastered at 44 kHz, you simply can't get a better version. (but it does not increase the quality)

[darkangel93]

CONTENTS DELETED

The author has deleted this message.

[Fake No Funk]

yeah, that spectogram looks absolutely OK.
The song is very silent, and from some point it's hard to distinguish between "silence" and "total absence" of a signal.