Tracking error distortion audibility

Dear Friends: I don't want to make this dialogue something " personal ", what Dertonarm or I think or argue about it does not matters, everything on the subject are already " say it " many years ago and the best we can do is to read on it.

Lofgren/Baerwald formulas were develped to obtain the overhang and offser angle in tonearm to " control " the tracking distortions.

Well, in those equations ( overhang/offset angle ) the parameters that they take in count are: effective length ( R or L in the equations. ) and the inner/outer groove radius. These equations have its " foundation " in those parameters not on the pivot to spindle distance.

Like I already say it:the subject is not what you say or what I say but what is wrong and what is correct.

All of us ( anyone ) can read here a very interesting analysis on the whole subject where you can find almost everything, please go to the link and there make click on Download and for the specific equations and notations ( R and L: effective length. ) go to page 30-32:

http://www.vinylengine.com/phpBB2/viewtopic.php?t=4854

I have to say that this white paper is really learning for anyone and along with the very first link ( calculator ) that I posted we can " play " to obtain amazing information on the tonearms we own and with the LP we own, like I say amazing. Now many of us can/could understand the whole subject and its implications.

Like I say in my first post in this subject a tonearm designer start/begin choosing the tonearm effective length for the design and not with the tonearm pivot to spindle distance that is only a consequence when we aply the Lofgren/Baerwald equations.

Regards and enjoy the music.
Raul.

I'm sorry, you can start reading at page 29. Well, it is worth to read all!

Regards and enjoy the music.
Raul.

Dear friends: This link that I take from other thread ( thank you Johnbrown. ) seems interesting too:

http://www.conradhoffman.com/chsw.htm

Regards and enjoy the music.
Raul.

Dear Raul, the Dennes paper is very good indeed. Its a great classic since 2 decades. However - it too does only deal with the "2nd" geometry. Baerwald, Loefgren, bauer, Stevenson etc. - this is all about the geometry of the stylus in a given tonearm. Thats why the mounting distance is not taken into consideration at all - it is not needed in those calculations and it taken as any fixed parameter.
These calculations do not deal with a specific tonearm - they deal with the ALIGNMENT OF A STYLUS in an - already mounted to its individual geometry - given tonearm. All these papers do not deal with the basic geometry of the given tonearm.

Maybe we have a big missunderstanding here - I mean there is:

A) a basic geometry of the tonearm itself. This is an individual geometry of a given tonearm.
B) then there is the geometry of the stylus in a GIVEN (= its individual geometry already fullfilled) tonearm.

This - I would like to call it "individual" or "secondary" - geometry is kind of universal. It applies to ALL cartridges and have several options to calculate and align the tracking arc and its zero-error points and maxima and minima derivations from the arc.

Dear Dertonarm: Yes, I read and posted in your thread.

I understand that almost all of us are committed to set-up that stylus in the position where make less overall " harm ", that's why those white papers and " calculator " are so useful for everyone.

Regards and enjoy the music.
Raul.