General - (fb2k) / Re: How do I configure spectrum visualization to display frequencies below 50 Hz?Last post by TF3RDL -
That Sb-sDFT was never a thing (also, the link to the page is dead since Wreck-it Woodhouse was meant to be a test wiki anyway), it was succeeded by CQT Analyzer and the FFT Analyzer can also visualize spectrogram too.Maybe people are getting their wires crossed a bit. here.
That's me. Had even forgotten that there were those built-in visualizations.
Or that the alternatives ( https://wiki.hydrogenaud.io/index.php?title=Category:Foobar2000_visualization_components ) are not in the official component repository.
Following your link, it appears there is a successor to Musical Spectrum by thw same dev that might do what the OP wants (it also has a configurable Spectrogram), but it hasn't been released yet:
Looking forward to this!
Cool: I found a public Git repository containing an implementation of CQT using Accelerate framework, calling itself CQTKit.Speaking of the constant-Q transform and sliding DFT thing (since calculating musical spectrum using Goertzel transform is painfully slow and offloading it to GPU may not be practical for anything outside PCs designed for gaming or machine learning), there is a sliding implementation of the constant-Q part of calcSpectrum2() function on my sketch called qdft by jurihock, but no variable-Q transform unlike foo_cqt_analyzer
Not so cool: No license, headers only contain a copyright notice to the author of the repository.