I get more bounce if I take tension out of the bow hair.  My shoulder is down and I'm trying to lead with my hand rather than push the bow, but I still have horrible bounce and quavering.  It's better than it was, but it's still really bad.

I will work on getting a consistent bow speed.  Hopefully that gets rid of the hollow echo.  I can take fingernails on a chalkboard, but that sound makes me cringe.

Well, after recording and playing back a ton of videos (which included a lot of fumbling, all kinds of wrong fingering, and an unmentionable amount of swearing) from all kinds of different angles, I figured it out.

The wind over a bottle sound starts when I begin sliding the bow along the strings rather than across them.  The more I play, the worse it gets.  Which is why it starts after a few minutes and then progresses downhill from there.

The bow bouncing is something I'm going to have to work on.  I'm certain that everything is connected to my lousy bowing technique and that I'll eventually get beyond it only to discover the next problem that frustrates my efforts to learn this.

Right now, I'm feeling very frustrated with myself.

@ELCBK I did watch the video, none of the suggestions changed a thing.  I think my bow is just too lively for someone at my level of playing ability/control.

Jim Dunleavy said
If it's any help, I had tremendous problems with shaky bow on down bows for quite a while after I started learning.

I almost never have a problem with it now, although the more stress I'm feeling (e.g. video camera going, people listening etc), the more likely it is to happen; it's nowhere near as bad as it used to be though and even when it does happen, you can't really tell if you're just watching the video back - it's only apparent to me while I'm playing.

  

To me it's very frustrating even though it follows what happens most of the time when I try something new.  No matter what it is, Beginners Luck helps me get a passing grade for the first or second time.  Then it all falls apart.

I do need to talk to my doctor about meds for my tremors.  I'm certain they're contributing to the shaky bow problem.  Not sure if they're also partly to blame for sliding the bow along the strings part but it probably doesn't help.  It might be that I'm tensing my thumb to try and eliminate the bouncing and that's what starts the sliding.  The more I try to prevent it, the stiffer my hand/thumb gets and that just makes everything worse.  Which is a reasonable working theory at the very least.

I also noticed that I'm dropping the scroll below level with my shoulder.  Which certainly helps the bow start sliding around.  So, maybe Mouse was partly right, I'm  getting tired about the time it starts.

Even though I'm frustrated at all the self inflicted problems which have jumped up and bit me on the butt, I still want to play and learn.  To that effect I'm going to step back a lesson and keep at it until I can play without errors (other than the shaky bow) at tempo before returning to the current lesson and moving on.  I also need to spend more time on bowing.

A good grounding in the basics is what I need to concentrate on.

JohnG said
@RDP - Funny (not haha) you should mention tremors. I was thinking of posting about them as I sometimes, mostly when very tired or after doing physically challenging (which doesn't take much with this old man) activities, have tremors which almost makes it sound like vibrato though not controlled. I know it's not bow bounce as I can see that the hairs never leave the strings.

I hope meds can help you. For me, I just put up with it, the relatively infrequent times it manifests itself or if it is too bad, discontinue practicing for that session.

  

It's part of the physical challenges I'm trying to overcome.  I used to do watch repair as a hobby but can't now because of how badly I tremble.  There are loads of funny stories about how people refuse to "lend a hand" sometimes because of fear for the safety of their own fingers.

Yesterday's practice session was much better.  I originally limited it to 30 minutes instead of an hour but stopped after 20 on the high note of being able to reliably repeat the string change from E to D (3 fingers on A) in Twinkle without looking at my fingers.  I still need more work on it, as well as finding the 4th finger E on the A string without looking, but maybe in a week I'll get there.