LOL yes - laughing at the lack of a line-in / mic-in jack.  Oddly enough, my newest laptop does not actually have one.   In some ways it doesn't matter, because I'm usually using the "Samson" studio mic - which does provide digitized audio via a USB connector - a similar device to what @Barry uses.   For me, though, there are occasions where I want to take raw audio say from my EV or guitar - in a "normal" analog manner - via exactly that - a line (mic) output.... and with no mic input jack it's just a darned pain the a55...  until you get yourself one of THESE ! ( LOL - there is NO end to it, is there ! )

 So even if your PC is short of a mic / line-in jack you can get a line-to-usb adaptor - bit like this one -

I would also take note of what Barry said about the "clip-on" style - a lot will depend on exactly where, and how you mount it - I have no idea how sensitive it is and the only way you're going to find out is to try it - but it might be better mounted say a few feet away from both your body and the violin  (avoids various scratching noises from clothing whilst moving about, and from the "clunks and thumps" during general handling of the instrument.... )

Yeah - good luck with your final choice.  

I didn't want to say it myself - not wanting to either dissuade you from your choice or suggest "this-is-better-than-that" - the different types most definitely all have their place), but, I do agree with @Kindascratchy and what was kind of suggested by @Barry - a good stand/table/floor mounted USB mic is a pretty good all-round answer to recording / playing live with acoustic instruments.   Especially for soloing - it picks up room reverb and adds depth to both voice and instrument sound, the closer mounted lavalier / clip-on mic will have "more of the loudest and nearest sound" and less of the room reverb.  Good for interviews, skype, chatting etc, not so hot (or at least I'd say, there are better solutions) for live playing on a solo instrument...  just my 2 cents as they say...

It's also good because it will almost certainly have a better sensitivity than the lapel / clip-on - which is always kind of problematic unless you're just sitting still, being interviewed or whatever on a sofa in a studio... and just talking ( although, I believe, they were sometimes "buried" in dancers/singers hair LOLOL - but there are better solutions these days.... )

Hope it all works out - I'm sure it will...

Hia @Schaick - glad you got a good mic !   There could be a number of things affecting your lack of audio - check the following out -

1. In the Sj "Test" window - right click in the left-hand window, and from the pop-up menu choose "Settings" - this will show a list of audio devices that can be used by the Adobe Flash environment - in my clip you'll seeI have a choice of 3 microphone audio sources - my inbuilt lappy mic ( Realtek ), my Samson, and the mic in my C160 webcam - select the one you want
   
2. Go to the little "Speaker" icon for sound settings - ( I mean the Windows icon, in the toolbar - NOT in the SJ / Flash window ) right click and select "Recording Devices" - when the dialog appears, choose the microphone you want to use as the default device
   
3. The final thing I can think of is, once chosen (as above) double-click on the default device you've chosen and select the "Levels" tab - adjust the slider to a reasonable level - 
4.   That's all on Windows of course - if you have a different platform, there will be different ways of achieving much the same thing....

  Good luck !

Hmmm @Schaick - another possibility....  the FlashPlayer is a browser plugin.   I currently use Chrome, but there's a similar mechanism for other browsers....   Some good time back - maybe 2 years now - I recall having similar issues following a SWFlash upgrade - I discovered there were conflicting enabled versions, but once I set the most recent to be the only one enabled, the problem went away.   What you say sounds sort of similar - maybe worth checking the browser plugin status - if you're using chrome, enter "chrome://plugins/"  (without the quotes) into the address bar, and look for the Adobe Flash Player - go all the way down the plugin list and on any older version click anything that says "Disable" - leaving the latest version you have set as below - 

I have NO idea if it really is down to the same cause or not - but as I say - what you describe is similar to an issue I once had....

The alternative indeed is maybe just try with a different browser, like IE or Edge or FireFox and so on...   And oh - if you ARE using something other than Chrome - don't put too great a meaning on the version shown in the image here from my system - it could well be different.....

Ahhh - nicely spotted @damfino - good point !