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Hosted Forums => foobar2000 => Support - (fb2k) => Topic started by: Leeoniya on 2019-01-23 00:03:44

Title: add freq scale to spectrogram?
Post by: Leeoniya on 2019-01-23 00:03:44
Would it be possible to add a y-axis scale to the spectrogram in some future fb2k version? Spectrum's got one, VU meter's got one. It'd be really useful for judging what frequencies various encoders chop off. Without a scale it's pretty hard to guess (in both log and linear scales).

thanks!
Title: Re: add freq scale to spectrogram?
Post by: darkflame23 on 2019-01-23 05:37:10
The Foobar spectrogram only shows info down to 50Hz, unfortunately, so not really sure how useful the scale would be. I hope it becomes full bandwidth one day.
Title: Re: add freq scale to spectrogram?
Post by: j7n on 2019-01-23 06:23:17
With the bottom end cut off the spectrogram is more visually appealing in a player. At normal FFT sizes the bottom end is large ugly interpolated pixels, or the top turns into long streaks when FFT is increased. I hope the spectrogram can be made "multi-resolution" where the low end extension is analyzed with a bigger FFT and combined into the same picture (like in Izotope RX but with fewer "steps" for performance). But I have no clue how hard this is to do. If you do add a scale, make it barely visible (just a few dots or font color without much contrast against the background).
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