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Topic: foo_enhanced_spectrum_analyzer (Read 38568 times) previous topic - next topic
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Re: foo_enhanced_spectrum_analyzer

Reply #125
For anyone who impatient of a big update to this component, I updated one of my CodePen audio visualization (the ones that originally intended for interactive mockup of CQT/VQT spectrum analyzer component for fb2k x64) to add something like this:
X
which is FFT bandpower spectrum with 1/24th octave bands, just like foo_musical_spectrum and audioMotion-analyzer

BTW, I did this ahead of @Crossover updating foo_enhanced_spectrum_analyzer (hopefully, a spectrogram view, non-power of 2 FFT sizes, and linear amplitude scale)

Re: foo_enhanced_spectrum_analyzer

Reply #126
-snip-
The mel scale would be a nice option. I will keep that in mind. But that contradicts the concept I am working on at the moment cause the idea is to display the musical spectrum (notes) together with the frequency spectrum. I have attached a picture for this.
A function that displays different channels individually or simultaneously would also be a good option. For me personally, this function is not a high priority because I mostly listen to music that uses stereo channels.
As for the feature request of letting you visualize all channels as FFTs of each channel, I meant this: (BTW, I've updated this interactive mockup to add this, which already exists on the similar spectrum analyzer plugin for another music player except for the M/S part)
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And for Mid/Side part (which can be easily done using M/S encoding then doing FFTs of resulting M/S signal for visualization):
X

Re: foo_enhanced_spectrum_analyzer

Reply #127
How about a spectrogram display in-addition to spectrum display like showcqt visualization?

BTW, I made the spectrum analyzer similar to Crossover's component and it features linear amplitude scale, which is useful for easily visualizing peaks
I meant something like this:
X
where spectrum is at top and spectrogram is at bottom, scrolling from top to bottom just like this FFmpeg filter mentioned before

Re: foo_enhanced_spectrum_analyzer

Reply #128
Yet another feature request for this component: Custom colorstop position for each gradient colorstops (which is already possible in audioMotion-analyzer) and infinite number of colorstops like in built-in spectrogram visualization

This makes something like this below possible:
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As for the UI for customizing color gradients, I like this one from PowerPoint something like this:
X

Re: foo_enhanced_spectrum_analyzer

Reply #129
I will implement something like this:

It can also be configured to show notes and the frequency grid:

FR when comes to the new frequency bands mode @Crossover is working on it above: Adjustable number of bands per-octave (because foo_musical_spectrum don't have it and I realized there are other variations of equal-temperament scales like 24-TET/quarter tone scale (also known as 1/24th octave bands, 240 bands within 20Hz-20kHz range, and of course Arab tone system) as I've read the Wikipedia page about it) and tuning for fractional octave band visualization (nearest note to specific frequency = specific frequency as in my own spectrum analyzer)

Also FR: Being able to enable or disable antialiasing on drawing graphs for nicer looking visualization closer to CanvasRenderingContext2D at the cost of some FPS drops and optional GPU acceleration (as this component uses a lot of my CPU) regardless of antialias setting

BTW, there are one regression I've noticed on the current version (1.9.2.0) is the window function setting does absolutely nothing (it stays using Hann window regardless of the window type they supposed to)

Re: foo_enhanced_spectrum_analyzer

Reply #130
For frequency bands mode @Crossover are working on, a sinc (or more accurately, Lanczos) FFT bin interpolation would be cool to have, however, a proper one requires the use of real/imaginary pairs to look like this (similar to FFT with zero-padding):
X
instead of this:
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where this second image above looks more like something other than zero-padded FFT or Goertzel

BTW, are the aforementioned dev of foo_enhanced_spectrum_analyzer busy with other stuffs, or just working hard on a massive update? (since there aren't replies to me 4 months ago)

Re: foo_enhanced_spectrum_analyzer

Reply #131
BTW, are the aforementioned dev of foo_enhanced_spectrum_analyzer busy with other stuffs, or just working hard on a massive update? (since there aren't replies to me 4 months ago)
You know, I don't want to seem crass or hurt anyone's feelings, but my own belief is that the developer has been happily using his new updated spectrum for a while now, and the reason he hasn't announced/made it available here is because he doesn't want to be "jumped on" by theorists or others asking him to change/try/replace this that or the other thing.  TF3RDL, I respect your obviously large body of knowledge about the subject, but I believe you should be working on your own spectrum release instead of what might be interpreted as lecturing/pressuring this developer on how to design his.  I'm sorry if this post offends, it's not meant to, but like you and many others I have been awaiting Crossover's Musical Spectrum/Enhanced Spectrum Analyzer hybrid and think we just have to let things "breathe" and give the message that anything he shares will be welcome.

Re: foo_enhanced_spectrum_analyzer

Reply #132
You know, I don't want to seem crass or hurt anyone's feelings, but my own belief is that the developer has been happily using his new updated spectrum for a while now, and the reason he hasn't announced/made it available here is because he doesn't want to be "jumped on" by theorists or others asking him to change/try/replace this that or the other thing.  TF3RDL, I respect your obviously large body of knowledge about the subject, but I believe you should be working on your own spectrum release instead of what might be interpreted as lecturing/pressuring this developer on how to design his.  I'm sorry if this post offends, it's not meant to, but like you and many others I have been awaiting Crossover's Musical Spectrum/Enhanced Spectrum Analyzer hybrid and think we just have to let things "breathe" and give the message that anything he shares will be welcome.
I liked the idea to work on my own spectrum visualization (perhaps a 64-bit remake of Musical Spectrum, Channel Spectrum panel, etc. in similar way to ReFacets) because the development time of the upcoming update on foo_enhanced_spectrum_analyzer would be absurdly long if they decided to implement most if not all of my requests to add these features (remember, do bugfixes first before adding new features is the best, because of the fact that known problematic components are barred from mentioning on component recommendation posts)

However, I don't actually have any experience with C++ nor foobar2000 SDK to actually make the visualization component that I've want and I only have experience with JS and Web Audio API (the latter doesn't exist in SMP component and I don't think adding WebAudio API support to SMP helps), therefore that's why it posted these visualizations on CodePen as a small web app not a fb2k 64-bit component, so good luck with anyone looking for Musical Spectrum and Channel Spectrum panel (with Default UI support) remake for foobar2000 x64

BTW, I also agree with your statement about pressuring the developer to add something that I've want (spectrogram view in-addition to spectrum, adjustable number of bands on frequency bands mode, linear/sqrt amplitude scale, perceptual frequency scales, a feature to display separate channels and even Mid/Side spectrum, etc.) because of reasons that I said before (the more requests the developer accepted and actually working on implementing these, the longer development time is)

Re: foo_enhanced_spectrum_analyzer

Reply #133
another FR: Bring back the crest factor (Peak/RMS) visualization but with same framerate and details (for consistency) as the rest of spectrum visualizations on this component