KVR Audio

kryptonaut · Post by **kryptonaut** » Tue Mar 25, 2014 11:20 pm

I have updated my oscilloscope plugin J-Scope to V1.1

32-bit Win VST 2.4

As well as some bug-fixes, features of V1.1 include:

One-shot trigger mode with optional pre- or post-delay
Linear, logarithmic and polar graticules with variable brightness
Cursor measurement of signal level, time, frequency, note
Stereo, mono sum, or mono difference as linear traces
L vs R or Sum vs Diff as X/Y Lissajous plots
Timebase from 1s/div (0.1Hz) to 0.1ms/div (1kHz)
Gain (Y) from x0.1 to x100
DC or AC coupled
Variable X-offset of trace(s)
Y-offsets of stereo traces individually adjustable
Adjustable trigger level, on positive or negative slopes
Display 'freeze' option
Adjustable phosphor persistence
8 preset modes +4 user slots for quick setup
Fully featured donation-ware - if you like it, buy me a beer

Downloadable from http://jaggedplanet.com/vst/jscope.html

3ee · Post by **3ee** » Tue Mar 25, 2014 11:35 pm

thanks for the update!

will give it a try vs the s(M)exoscope.

FLWrd · Post by **FLWrd** » Wed Mar 26, 2014 9:30 am

Looks great. I take it you're not planning a Mac/AU version?

tico-tico · Post by **tico-tico** » Wed Mar 26, 2014 11:43 am

Thank you! Now it's stable in Reaper.

kryptonaut · Post by **kryptonaut** » Wed Mar 26, 2014 12:16 pm

Yes, I fixed some bugs that were causing problems in Reaper and other hosts. I think it's pretty stable now, and has quite a comprehensive set of features.

Sorry, I don't have the development kit for a Mac/AU version, so it's Windows 32-bit only for now.

Diego_C · Post by **Diego_C** » Wed Mar 26, 2014 2:18 pm

It's a very nice one, full options packed, and I like that old style hardware look

Thanks for the update!
Cheers

ENV1 · Post by **ENV1** » Wed Mar 26, 2014 4:28 pm

It looks good in silver too:

kryptonaut · Post by **kryptonaut** » Fri Mar 28, 2014 9:27 am

Interesting alternative look! More like a TV than an oscilloscope, gives it a very different feel.

ENV1 · Post by **ENV1** » Fri Mar 28, 2014 1:41 pm

Originally i was trying something more hardware myself, but i didnt get anywhere with the knobs, since the value readouts are right in the center. If i could have moved them out of the way, like i did with the sliders, i would have put the screenframe of a real oscilloscope and some silver knobs on it.

Anyhow, visuals aside, thought id let you know that while making the background for the screen ive noticed that your Y coords are slightly off. Details as follows.

- In Linear view, the positive voltage max (top) is 1.37, but the negative max (bottom) is only -1.36. To fix this, the bottom half would have to be extended by 1 pixelrow, (obviously), and another pixelrow to have a true center line again.

- The graticule center line (0.000mV) is currently 1 pixel too high.

- The graticule center line of the top half of the screen corresponds to 675mV. In the bottom half however, 675mV is currently 2 pixels below the center line. There is also an unneeded dot between the numbers and mV in the textual readout while displaying integers.

TopHalf

BottomHalf

- The upper boundary of the second ring of the POL view is one pixel lower than the lower boundary. This indicates that the entire upper half of the rings is one pixel to small.

And lastly i had also noticed a problem with the first line of the X axis. This line looks like it is glitching badly, since it behaves very erratically and doesnt seem to belong to the waveform itself. The issue could be solved easily and quickly by simply not drawing that line at all.

Thats it for now, should i find anything else i will let you know.

kryptonaut · Post by **kryptonaut** » Fri Mar 28, 2014 3:47 pm

Thanks for the info.

The centre-line of the graticule being 1 pixel off 0.000V was almost certainly a conscious decision (from long ago when the project started), because if they correspond exactly then the graticule hides the trace and you can't tell that the thing is working. But perhaps I could find a tidier solution in a future update, maybe make the graticule slightly transparent.

The first line of the x-axis is not glitching, it shows you what the trace is doing before it reaches the trigger threshold, i.e. before the timebase sweep has started. This can be useful information at times.

The occasional unnecessary dot in the numeric on-screen display is slightly annoying, and will also be dealt with in a future update.

chroma · Post by **chroma** » Fri Mar 28, 2014 3:56 pm

The first line of the x-axis is not glitching, it shows you what the trace is doing before it reaches the trigger threshold, i.e. before the timebase sweep has started. This can be useful information at times.

that's actually a very cool feature!

ENV1 · Post by **ENV1** » Fri Mar 28, 2014 4:21 pm

kryptonaut wrote: The first line of the x-axis is not glitching, it shows you what the trace is doing before it reaches the trigger threshold, i.e. before the timebase sweep has started. This can be useful information at times.

Ah, i see. My mistake then. Forget i brought it up.

J-Scope Oscilloscope update