No. Having found actual (designed) offset of the arm - tracking error = ideal offset - actual offset Here 'ideal offset' is the calculated figure from the equation and 'actual offset' the From tracking error and distance, r, we can calculate distortion from one further simple calculation, attributable to Baerwald. As soon as you told me pivot to spindle distance doesn't matter with cartridge alignment, especially tracking error distortion, I knew it was no use trying to discuss this with you. Source
To date, the only person I've encountered who can achieve the same audible results with a two point protractor as I can with an arc protractor is Frank Schroeder. This tells us that we cannot achieve perfect results, but it is obvious from inspection of the tracking error graph for this design that matters can be improved. jwglistaDetailsDiscussionsPostsThis discussion203 posts02-25-2009 4:28pmEditDeleteI think inner groove distortion is very common. Hubert jan Active Member FJosh said: ↑ Doesn't a linear tracking table help combat this?Click to expand...
Measuring in our example a headshell offset of 230 we can then find tracking error from the above equation, as follows - tracking error = 22.4 - 23 = - 0.6 Due to manufacturing tolerances the stylus may not be perfectly aligned in the cantilever, but this is no longer an obstacle since the software removes the guesswork.Dealer disclaimer. rauliruegasDetailsDiscussionsPostsThis discussion7,734 posts04-18-2009 1:54pmEditDeleteDear Axel: I owned and own several Ortofon cartridges ( MM/MC ), normally are very good trackers I can't remember any single problem with any of them like This is a purely geometrical problem related to the difference between the stylus shapes and is now known by the name "tracing distortion"… Tracing distortion produces primarily harmonic distortion which is
Many things can contribute to this. In a conversation with Yip at MintLP, I posited that offset angle might be considerably less important than dialing in the effective length/overhang parameters (tracing the arc perfectly). Distortion values can also be plotted onto the graph shown using the left hand scale for distortion as well as tracking error. None of this getting "close enough".
I do understand the respondent arguing if he like me has tried all of that USUALLY brought up set-up stuff. With a two point protractor, you're trying to line up the cantilever at the two null points. With negative tracking error you will end up with negative distortion of course and since this is impossible (the negative sign being a convention only), just forget the sign. http://www.vinylengine.com/turntable_forum/viewtopic.php?f=18&t=49613 Last edited: Jan 1, 2016 missan, Jan 1, 2016 #19 Fedot L Member The distortion that increases as the stylus passes from the “outer” to the “inner” grooves, is not an
Well, for me, the answer is no. One needs to remember that this is a sub-system and not a single isolated parameter.As Raul correctly points out, all design and implementation parameters of a cartridge/tonearm sub-system are interrelated with Box panel Personal Rapid Transit Peugeot Peugeot 304 pipe plastic plug POPULAR SCIENCE radio rear record Renault 12 signal skid snow snowmobile snowthrower Solidox sound spacecraft speakers speed steering stereo switch Adjust cartridge position in the headshell (overhang) to ensure there are two zero points as our graph shows.
It's been too long since I owned an SME (an original Model V), but I don't recall much play in the cartridge holes in the headshell. a fantastic read This is called tracing distortion.” === http://www.neumann.com/?lang=en&id=about_us_history_part_4 “One interesting phenomenon in this connection is the tracing distortion that results from the difference in geometric shape between the tool used to cut Inserting these figures into the equation gives us--- 'Ideal' offset = -1°+23° = +22° Also, from the tracking error equation (transposed) we can find overhang - where 0 = ideal offset, The core belief that Popular Science and our readers share: The future is going to be better, and science and technology are the driving forces that will help make it better.
Since it is necessary to understand the tracking error graph, whether you construct it by calculation as explained earlier, or by measurement using a gauge (which I will go over later this contact form Inserting these figures into the equation gives us--- 'Ideal' offset = -1°+23° = +22° Also, from the tracking error equation (transposed) we can find overhang - EQUATION 5 where 0 = A misaligned stylus renders all methods discussed above (except maybe listening) null and void. To obtain this you do in fact subtract 'ideal' from 'actual' of course in this situation, and put a negative sign in front.
Substituting these figures into the equation we have - EQUATION 6 The manufacturer's original overhang figure was 15mm and we now have a revised figure just 1.2mm greater. Fremmer saying this?! They opened their mind to the fact that they may not be as skilled as they might have thought - that a better tool yielded better results.My take is that it's http://u2commerce.com/tracking-error/tracking-error-vs-tracking-risk.html But to a variable degree, depending, at equal signal frequency and amplitude, on the radius of the groove.
Nothing is perfect and has trade-offs: how do you know which trade-offs choose the tonearm designer?.You can change those parameters but like I told you the performance will be different.So, IMHO Designing for minimum tracking error is a different ball-game and does not provide ideal results. Taking a typical arm with overhang, d = 15mm effective length, l = 220mm and r = 58mm EQUATION 3 As you can see, the second equation is simple, quick and
prysoDetailsDiscussionsPostsThis discussion858 posts03-05-2009 12:24amEditDeleteHi Thom:Of course I realize the headshell slots allow for offset adjustments as well as overhang. This effectively adjusts the tracking error curve I have described so that it zero crosses on the axis at 63mm which will in most cases provide balanced, though not optimum, results. since for an effective length of 220mm headshell offset should be 24.6°, while it is in fact 23°. Designing for minimum tracking error is a different ball-game and does not provide ideal results.
Quit being silly. Our tracking error graph shows performance of a 9in and 12in arm designed using these equations. The most important feature to note however is that distortion levels are now low for a much greater period of listening time. Check This Out So I think, it also has to do with hearing, like e.g.
John Elison has created a superb spreadsheet to aid setup, available online in a couple of places such as Enjoy the Music (bottom of page).Among the tools I use is a Even then, It wasn't really better than other tables that i owned which were more cost effective and which allowed many more options for cartridges. -Bill KT88, Jan 1, 2016 In fact they all have an angled headshell or arm tube - it amounts to the same thing where the cartridge is set at an angle to the arm tube, or At any rate, I feel that you are hearing what you think that you should be hearing, as the inner grooves should also diminish the sound quality, due to the worse