Wow&Flutter Measurements Of Turntables And Ways To Improve

[mtemur]

Please share your wow&flutter measurements of the turntables and the measurement tool here. The most complicated standard is AES and Analog Magik measures in AES. Naturally it yields woorse performance figures compared to others especially instant measuring tools.

 

[djsina2]

With Shaknspin what’s the difference between DIN, RMS, WRMS?

 

[mtemur]

With Shaknspin what’s the difference between DIN, RMS, WRMS?

It's the meaningfulness of results. At this order; mediocre, poor, useless

 

[microstrip]

Please share your wow&flutter measurements of the turntables and the measurement tool here. The most complicated standard is AES and Analog Magik measures in AES. Naturally it yields woorse performance figures compared to others especially instant measuring tools.

Did you calibrate your measurement system with standard calibration files?

Unless people do it the subject is complex enough to make comparisons misleading and erroneous. Proper instant measuring tools, as my Kenwood FL-140 W&F meter, are excellent measuring devices!

 

[Bruno Rivademar]

3 year old Samsung Galaxy Phone. RPM Speed & Wow App

 

[mtemur]

Did you calibrate your measurement system with standard calibration files?

Unless people do it the subject is complex enough to make comparisons misleading and erroneous. Proper instant measuring tools, as my Kenwood FL-140 W&F meter, are excellent measuring devices!

AM software uses a test record and software that do not require calibration. In contrast, other phone apps that rely on accelerometers and offer calibration options. On the other hand, the Kenwood FL-140 and similar devices require calibration due to their analog nature. The main issues with these devices are integration time and the measurement standard. Older wow and flutter (w&f) meters, like the Kenwood FL-140, are instant measuring tools with incredibly short or no integration time, and they use lower standards, such as WRMS. Unfortunately, this is not good enough.

 

[microstrip]

AM software uses a test record and software that do not require calibration. In contrast, other phone apps that rely on accelerometers and offer calibration options. On the other hand, the Kenwood FL-140 and similar devices require calibration due to their analog nature.

Surely. But calibration with a common wave would establish a reference for other members.

The main issues with these devices are integration time and the measurement standard. Older wow and flutter (w&f) meters, like the Kenwood FL-140, are instant measuring tools with incredibly short or no integration time, and they use lower standards, such as WRMS. Unfortunately, this is not good enough.

We find many conflicting opinions on what is the best measuring system. It is why I referred the need a common standard if people want to compare.

As I said before - I use "instant instruments" for fast control and rely on relative analysis of the 3150 signal spectrum for comparative measurements and optimization. My experience is mainly with tape, not turntables.

BTW, does any one know of a good source of test LPs with the 3150 track that are not too expensive in Europe and having a track lasting for more than five minutes? My test LPs are now well used, as they have short tracks.