Bar graph showing inaccurate frequencies after last few updates

[thevudia14]

Expected: The max frequency shown should not be greater than the song sample rate itself

Actual:

In this example, the sample rate of the song is 44.1kHz but the graph showing more than that.

For the same song, the curve graph shows the correct frequency spread.

Please fix it.

[stuerp]

Can you please share the preset file for the bar graph? Because this makes no sense. The spectrum should be the same.

[thevudia14]

Where is it located? Which file format?

[stuerp]

Presets tab. Just save a test file. The default location is your fb2k profile.

[thevudia14]

test_preset.zip

[stuerp]

Thx. There's nothing wrong with the spectrum as-such. The problem is caused by the high number of bars. A bar has a minimum width which causes the rendering to spill over on the right side of the component. The X-axis, however, has no such limitation and can be drawn within the bounds of the component. Net result: A different scale factor between the bars and the X-axis.

[thevudia14]

But this did not happen until few updates ago. I reduced the number of bars, but resizing the window is causing the issue again.

[stuerp]

That's because on the support forum people kept asking me to tweak the sizing and the spacing of the spectrum bars. The next beta will have a redesigned algorithm that hopefully will please most people.

[thevudia14]

Can you point me to the version link that used to work? I will keep it until your beta release.

[stuerp]

No, because it got unnoticed. It only appears in edge cases such as a high number of bands + small window size + high max. frequency.

[thevudia14]

I dont understand. I asked for a prior version which did not have the change you are talking about

[stuerp]

Have a look at https://github.com/stuerp/foo_vis_spectrum_analyzer/releases/tag/v0.7.5.0-beta2

[thevudia14]

It's accurate now. But there is an issue: Even though the chosen range is 20Hz-50kHz, I could see other ranges.

[stuerp]

Yet your screenshot shows 20Hz-50kHz... I'm confused.

[thevudia14]

I am talking about the borders. In old update, the empty borders wouldnt show up, on either side of 20 and 50kHz.

[stuerp]

That's by design. A pixel is a pixel. There's no way around it. Either you size the window to fit the content or you make sure there are enough bars to fill the available space.