On certain tracks, the spectrum analyser has a low framerate rendering it inaccurate/wrong and unattractive. Reproducible: Sometimes Steps to Reproduce: 1. play problematic track Actual Results: spectrum analyser may have low framerate Expected Results: framerate should be normal I can't consistently find out what is causing it, but have only had it occur with .flac files, and no .mp3 files. It's probably not a kbps/size issue, because my high quality ~3000kbps 24bit 96khz flacs that weigh in at 1-3GB per album are fine. The compression of the flac doesn't seem to affect it either, as these are all max compression flacs.
After discussing with Torry Fischer, I found that this is likely a Phonon-GStreamer issue with AudioDataOutput. Reassigning the report.
if you run the following: gst-launch-0.10 filesrc location="$INSERFILEPATHHERE" ! decodebin2 name=dec ! audioresample ! audioconvert ! libvisual_lv_analyzer ! video/x-raw-rgb,width=640,height=360,framerate=25/1 ! ffmpegcolorspace ! queue ! xvimagesink does the analyzer look correct? also does it look equally wrong if you try to play the file with dragon player?
Analyser seems to look correct with that command. Equally low-fps on dragon player.
Thank you for the bug report. As this report hasn't seen any changes in 5 years or more, we ask if you can please confirm that the issue still persists. If this bug is no longer persisting or relevant please change the status to resolved.
This backend for Phonon is no longer maintained or supported, and has not been for quite some time. Please use the VLC backend instead--which is the recommended and maintained replacement--and see if you can reproduce the issue there. If you can, please open a new bug report at https://bugs.kde.org/enter_bug.cgi?product=phonon-backend-vlc. Thanks a lot!