fons@xxxxxxxxxxxxxxx wrote: > On Thu, Oct 22, 2009 at 10:21:50AM +1100, cal wrote: > >> On the subject of the metering display behaving erratically (as distinct >> from displaying incorrect values) ... standard zyn refreshes the gui at >> 25 fps, and to my mind that leaves the metering looking unduly sluggish. > > That just depends on the algorithm driving the meter. > Jkmeter refreshes at 25 Hz by default, and the peak > indication doesn't look sluggish at all (the RMS one > does, but that is by design). If your meter is supposed > to display peak values then the algorithm than computes > them should hold the max value for some time before > letting it fall back, in jkmeters this is half a second. > If you do that the refresh rate just determines how > smooth the fallback is, and nothing else. I used to be put off by meters that looked slow, until I realised how useful RMS meters were and how long the windowing time needs to be to capture the bass frequencies. :) Fons, I've been wondering, though, does the update rate in jkmeter affect the measurement window, or just the display rate? I've also been wondering what the purpose of the fall-of on peak meters is. Why not just reset the peak level immediately and let it get bumped up again by the signal? Am I right in thinking it used in the past to make the meter ballistics a little more representative of the average level? Lastly, does the K-System itself specify any particular windowing interval? BTW, thank you Fons for all your excellent audio software - a great collection of truly useful utilities. :) Chris _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx http://lists.linuxaudio.org/mailman/listinfo/linux-audio-user
