Fun with vinyl measurements

[Balle Clorin]

I have e-mailed Alexey Korf before - on the RMS for that Sperling Test record, and asked again this week - unfortunately he has not come back with an answer. I do follow his Blog, and he does respond if you send him an e-mail - very nice fellow and he is on the Galibier website now - with the arms. Which is pretty awesome.
Worth mentioning, I thought.

Tonearms by Korf - Galibier Design

Tonearms by KorfClick for the Korf BlogAustria is home to more than great skiing! Alexey Korf and I recently learned that we're secret admirers of each other. His innovative approach and use of materials deliver wonderful analog instruments to lovers of vinyl playback. Korf is a breath of...

galibierdesign.com

Yes, Korf replied me as I have pointed to my post on the subject here, he is going to look into it, nice of him

 

[Balle Clorin]

some fun here, tracking/antiskating and L-R phase difference

Script for intermodulation distortion testing of vinyl playback, setting VTA ,Zenith etc by test record

Thanks. I have the STR-112, it has duotones with 4kHz and 400Hz lateral and vertical, and 200 Hz lateral and vertical, all with different levels of the intermodulation. I think the results from such a test can only be compared to tests with the same record. Anyway, the vertical intermodulations...

www.audiosciencereview.com

 

[Balle Clorin]

Seeking the best HTA check.. herE is Tacet test record approach

and my result, anyone feel the desire to comment, interpret?

Another turntable another cartridge, seem to act perfect according to Tacet, level changes, but by the same for both channels

 

[morillon]

Seeking the best HTA check.. her is Tacet test recod approach

View attachment 490917

and my result, anyone feel the desire to comment, interpret?

View attachment 490918


Another turntable another cartridge
View attachment 490934

The approach, the reflection on aids for fine-tuning through measurement, is what clearly interests me most, a "useful approach" (even if we always end up putting it into perspective)...but I don't read German.

 

[Balle Clorin]

 

[morillon]

View attachment 490943

Thank you...
;-)

 

[Thomas_A]

Regarding the Merolemez azimuth tracks. According to the instructions the curves should be symmetric, and ideally at 45°. But absolute values are "cartridge specific" and point is that the pattern should be adjusted so it is symmetric. Anyone have an idea about the cartridge specific factors? My Shure V15V JICO SAS/B has 43° (to 44°). And I also measured a VM540ML recently, being at 46°.

 

[JP]

Man I've a lot to catch up on here.

 

[Thomas_A]

Man I've a lot to catch up on here.

Pick your poison

 

[JP]

Sure feels that way lately.

 

[JP]

On the bright side, I'm loving @Balle Clorin's mastery of Python.

 

[Thomas_A]

Seeking the best HTA check.. herE is Tacet test record approach

View attachment 490917

and my result, anyone feel the desire to comment, interpret?

View attachment 490942


Another turntable another cartridge, seem to act perfect according to Tacet, level changes, but by the same for both channelsView attachment 490934

Not sure what to look for here, but I could run som tests with my Tacet.

 

[Palmer]

Pick your poison

One way to get to a better playback from your turntable without going in too deep - or, to verify that the efforts one undertakes are making improvements, for me:
I compare a recording that has the same mastering, more or less on CD and on the vinyl. Emphasis is, the mastering needs to be about equal. My favorite is Joe Cocker - Sheffield Steel - if the vinyl reproduces as close as possible compared to the CD - I know I am on the right track. Of course I have the benefit of knowing the material and the production, but there's a couple of recordings, where the mastering on the CD wasn't messed up compared to the mastering on the vinyl.
I know a lot of people will disagree with me on this, but it is a nice break from looking at graphs, and hearing test tones. Gotta get the Tacet, don't have that one...

 

[Balle Clorin]

The stupid thing with TACET it that the HTA track is at 9cm radius, and NOT at a null point!!!

How off shall levels shift to fit with X degree at 9cm… annoying

What were Tacet thinking about here?

 

[morillon]

he stupid thing with TACET it that the HTA track is at 9cm radius, and NOT at a null point!!!

Excuse my question...but I don't know this abbreviation hta?

 

[Palmer]

The stupid thing with TACET it that the HTA track is at 9cm radius, and NOT at a null point!!!

Would be interesting why they did that, then again - cant put everything at a null point, can you...

 

[Balle Clorin]

Excuse my question...but I don't know this abbreviation hta?

Horizontal Trackng Angle, or Zenith , the thing that protractors help with

 

[Balle Clorin]

Would be interesting why they did that, then again - cant put everything at a null point, can you.

Well there is some priority , but it is only one right place to put the VTA and HTA track at 120.9mm .. other locations make them pretty useless

 

[Balle Clorin]

Joe Cocker - Sheffield Steel -

One of my all time favourite albums!

 

[Palmer]

One of my all time favourite albums!

A lot of people don't even know - not only Sly and Robbie, but Adrian Belew on this as well. Sad that the Studio went away. What a place... The best of Grace Jones was done there, too. Not even off topic, since those records are fantastic on vinyl. Nightclubbing is one of those, that are very close CD vs vinyl.