jmerkt / cqt-analyzer Goto Github PK

Apologies if this is a dumb question. Is there some sort of sloping applied with this spectrum analyzer? Or is it an inherent property of the Constant Q Transform? Or perhaps I'm just holding it wrong, as it were?

To test the analyzer, I ran a white noise source through it. I saw a pretty distinct dB slope downwards from the highest octave to the lowest octave. I found that pretty puzzling, because white noise ought to have a constant magnitude over time rather than a slope. I confirmed that the noise source was white using two other spectrum analyzers (just FFT based, not CQT). I looked through the source code and couldn't find at first glance anything that would be responsible for this sloping. Am I just "holding it wrong" as they say, possibly not understanding the full properties of the CQT? Or is this an issue with cqt-analyzer?

I ran ldd on the .so file and It fails because my glibc libs are a version or 2 behind the lowest requirements, however I was able to build it from source and so far I've tested it on Bitwig and Tracktion Waveform and all is going well on my initial tests.

Thank you for making your plugin open source. :)