https://bugs.kde.org/show_bug.cgi?id=514673
Bug ID: 514673
Summary: Audio graphs: room for improvement.
Classification: Applications
Product: kdenlive
Version First unspecified
Reported In:
Platform: Other
OS: Other
Status: REPORTED
Severity: normal
Priority: NOR
Component: Monitors & Playback
Assignee: [email protected]
Reporter: [email protected]
Target Milestone: ---
Created attachment 188571
--> https://bugs.kde.org/attachment.cgi?id=188571&action=edit
a comparison between the same graph in Audacity and Kdenlive. note how peaks
differ in upper/lower parts of Audacity graph, but Kdenlive one always displays
the peaks symmetrically at both sides.
Today a user in Discord was complaining about the new audio waveform graphs
(introduced some versions ago).
He stated that he preferred the previous graphic style that only showed "one
half" of the waveform, as it was able to more efficiently show the differences
in audio using the same vertical screen space.
I understand most audio programs show the complete waveform graph, and in that
sense, it's expected that Kdenlive also show audio graphs that way.
Still, I think there's a point in the claim, and perhaps there could be an
option in Preferences for displaying just half of each channel's graph?
Also, related to this, I've found that the waveform graphs Kdenlive draws have
one problem:
What they show is not the real waveform of the audio, but a sort of "half
wave"* duplicated to both sides of the zero line.
* it seems to overlap both halves on top of each other, and draw that same
result to the upper and lower parts of the graph.
It's frequent that the lower part of the graph is not equal to the upper part
(as shown in the attached image), but in Kdenlive both halves of the signal are
always shown the same.
I don't know if this was on purpose or just a byproduct of the code refactoring
done.
Thing is, if the graphs just show one duplicated half, all purpose in using
more screen space to show the whole waveform seems to be lost (i.e. we're just
using more screen space for nothing that couldn't be shown even bigger using
half of it). 🤷♂️
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