kevemaher
Responses from kevemaher
Should I buy a VPI SCOUTMASTER. I OWN 25 RECORDS. @inorganic For me, there's more to playing records than the music. I happen to enjoy the inconvenience of having to store, clean, and cue an LP. Lots of cartridge, tables and tonearm offerings to drool over. I love the plethora of accessories avai... | |
A Few Turntable Measurements using the RPM Android App I thought about starting a new thread, but the conversation on this one is a good intro into my next question. "How does one choose between belt drive (including string, fishing line etc...), direct drive and idler drive?" There seems to b... | |
A Few Turntable Measurements using the RPM Android App @rauliruegas Thanks for the links. Great reading material. Seems like companies use whatever measurement protocol they feel is appropriate. This is very similar to the "alphabet soup" of specs that exist in the Optics and Electronics engineering w... | |
A Few Turntable Measurements using the RPM Android App @terry9 Thank you very much! And thank you for joining in. I'm having fun learning how other real users think about audio and audio gear. I can't get that here in this countryside location. Thanks to everyone else also. | |
A Few Turntable Measurements using the RPM Android App @mijostyn I use REW for room characterization. It is freeware. The functions appear similar. | |
A Few Turntable Measurements using the RPM Android App @terry9 There is a well-defined method for measuring wow and flutter and rumble, which only differ in frequency and source, but not in nature. This method turns out to be quite complicated. Whether the RPM app developer used this method or not is ... | |
A Few Turntable Measurements using the RPM Android App @rauliruegas Hi, Thanks for the link. Surprisingly, the wow and flutter reported for the Double X by the author of the article you referenced is the same as the wow value I reported above for the AS WOW XXL using the RPM app. This result is encour... | |
A Few Turntable Measurements using the RPM Android App @brev Yah, it is fun making these measurements. I wish that the developer would publish his/her methodology. For example, what algorithm is used for the WOW calculation? Is it one of the standards? I don't think we'll find out any time soon. Apps... | |
A Few Turntable Measurements using the RPM Android App @mijostyn The belt is brand new. Just put it on about a month ago. The old belt had stretched. The measurements I reported using the RPM app were done with the new belt. I was shocked by the poorer performance of the WOW. Acoustic Signature does... | |
A Few Turntable Measurements using the RPM Android App @terry9 Like with many quantities, the speed aspects of turntable rpm can be described as a mean surrounded by skirts on either side. I say this with trepidation, because the turntable noise is not a stochastic (random) phenomenon. It can have res... | |
A Few Turntable Measurements using the RPM Android App @lewm I have not been able to find specs on the Nottingham or the Walker tables. It is quite difficult to make comparisons on table performance without basic speed and vibration specs. I will never buy a table again without seeing these specs. On... | |
A Few Turntable Measurements using the RPM Android App @ossicle2brain My Acoustic Sounds WOW XXL table is an excellent case. From a cold start, it needs a push on the platter rim to begin spinning. One never knows when it is up to speed. There is no feedback. The REW app provides some idea. The app h... | |
A Few Turntable Measurements using the RPM Android App @duckmanst3 Hi, I'm not questioning the accuracy of the hardware, although that would be nice to know. I'm concerned about the logic and math used to make the calculation. That info has not been published and probably won't be because (I bet) the ... | |
A Few Turntable Measurements using the RPM Android App @ossicle2brain One way to find out how much weight is too much is to add weight to the table, then measure the RPM and WOW with the app. Continue to add weight until the speed changes or the WOW increases. This will probably happen before anything... | |
A Few Turntable Measurements using the RPM Android App I should point out that the RPM app has not been independently verified for rpm accuracy. As I reported above, the repeatability is good. The WOW 2 sigma reported by the app has also not been verified. In particular, the method of calculating the... |