24 Oct
2009
24 Oct
'09
2:51 a.m.
fons(a)kokkinizita.net wrote:
On Thu, Oct 22, 2009 at 10:21:50AM +1100, cal wrote:
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
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.