May Belt (Mrs. Peter Belt) wrote something like that in Stereophile. She wrote that their products do not affect the electrical signal or the sound in the room.
Their products affect the human listener. She also claimed that their products affect all listeners (knowing and unknowing). But then, that was never demonstrated.
I take it you don't work with critical or medical equipment.
What if your "improvement" makes it mask something?
The Radiologist isn't being chicken, He's being smart.
I work on very critical systems, you don't make any change
without it being thoroughly tested in a lab environment first.
Note: Tested by Real Engineers with Well Documented testing.
Then when the upgrade, fix, etc, is deployed another round of field
testing is performed before the equipment is put back in service.
(Usually with the Engineers monitoring the install and field test.)
.
Last edited:
I have some related sensitivity to "speed" changes. Years ago in adolescence, I have some Walkman and made a hole for constant adjusting the tape speed with a screwdriver, due to my obssession for correct replay speed (at a amazing accuracy***). Results that my music parents says I detect clearly one semitone change OR LESS in recorded music, yet I'm unable to tune musical instruments...
(but for this one needs training)I yet have to hear el cheapo record players that plays with correct speed (even some "HiEnd" ones). But good ones plays perfectly for me (no supernatural thing here, of course...)
EDIT: *** comparing with the CD original, even when I don't have listened to CD various days, and resulted correct. Most walkmans have poor speed compensation.
Off center records are for me a pain, like for some people here.I have some related sensitivity to "speed" changes. Years ago in adolescence, I have some Walkman and made a hole for constant adjusting the tape speed with a screwdriver, due to my obssession for correct replay speed (at a amazing accuracy***). Results that my music parents says I detect clearly one semitone change OR LESS in recorded music, yet I'm unable to tune musical instruments...
I yet have to hear el cheapo record players that plays with correct speed (even some "HiEnd" ones). But good ones plays perfectly for me (no supernatural thing here, of course...)
EDIT: *** comparing with the CD original, even when I don't have listened to CD various days, and resulted correct. Most walkmans have poor speed compensation.
For the internet readers seeking useful info on audio electronics, debunking and challenging of bogus claims is a necessity. If that bothers you, then there is a simple thing you can do. Care to guess what that is?
Fremer reported a test IIRC the effect was less than 1/1000th of the earth's field which is non-uniform so the LP would have to be exactly the same position for any valid measurement. Also the LP was not even close to being "demagnetized" totally there was simply a small change measured (no indication of how valid the measurements might be). There is no reason to dispute out of hand the possible existence of contaminant particles with a non-zero magnetic moment. I would think you need one huge Helmholtz coil to measure at this level.
Why would this matter? I could not find a single user of strain gage or electrostatic cartridge so hard to test the claim of magnetic induction. The stylus removing the effect with every play is a new twist and of course two consecutive plays of the same LP are subtly different in the first place. "Everyone can hear it " did not pan out for Mr. Fremer.
I'm afraid May Belt's stand is held by many folks so looking at signals is a waste of time anyway.
Last edited:
Updated from contributions. Now with added pith!
Typical characteristics of snake oil products...
1) Huge price mark-up, like price 100x material cost
2) Hijacking of a topical scientific principle, but the claims contain scientific blunders and lack of understanding of those principles and science in general.
3) No credible, controlled trial to show efficacy.
4) One person company, absence of credentials or exaggerated/fake credentials.
5) Strip-down of product reveals ordinary components that have been obscured.
6) Glowing testimonials from ' professionals ' with prefixes such as Dr or Professor added to their names , upon closer inspection it turns out that the Dr is a hypnotist and the Professor a school janitor.
7) Advertising on and being revieved by 6moons. (and other sites)
8) "Quantum" in their product name
9) Claiming "years of research".
10) Claiming Military sales (eg: secrecy and gravitas)
11) Patented or proprietary (more secrecy)
add more...
Typical characteristics of snake oil products...
1) Huge price mark-up, like price 100x material cost
2) Hijacking of a topical scientific principle, but the claims contain scientific blunders and lack of understanding of those principles and science in general.
3) No credible, controlled trial to show efficacy.
4) One person company, absence of credentials or exaggerated/fake credentials.
5) Strip-down of product reveals ordinary components that have been obscured.
6) Glowing testimonials from ' professionals ' with prefixes such as Dr or Professor added to their names , upon closer inspection it turns out that the Dr is a hypnotist and the Professor a school janitor.
7) Advertising on and being revieved by 6moons. (and other sites)
8) "Quantum" in their product name
9) Claiming "years of research".
10) Claiming Military sales (eg: secrecy and gravitas)
11) Patented or proprietary (more secrecy)
add more...
there is no commercial magnetometer available that I can find with a sensitivity approaching even 100 orders of magnitude of this claimed measurement.
To have even the slightest chance of measuring this, you would need a mumetal box at least .5 inch thick and big enough on the inside for the lp. Then you would need a large coil around it to null out the earths magnetic field (like high powered electron microscopes)
And then still not a chance.
To have even the slightest chance of measuring this, you would need a mumetal box at least .5 inch thick and big enough on the inside for the lp. Then you would need a large coil around it to null out the earths magnetic field (like high powered electron microscopes)
And then still not a chance.
- Status
- Not open for further replies.