The Clarinet BBoard
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Author: Hiroshi
Date: 2001-11-27 06:03
Recent tow interesting findings on music technology
1)Schuman resonance
I am not talking about that Schuman, composer. I am talking about an academic figure W.O. Schuman, who found there is a resonance in the cavity between earth surface and ionosphere. About 7 Hz. One of the brain waves, alpha brain wave, corresponds to this Hz in average. Alpha waves make us feel strong, vivid, everything good, especially when playing or listening to music.
Using this knowledge many companies develped things with healing effects. Wrist watch, healing music CDs, audio tapes, a box to generate 7.3Hz tone at a audio listening room.
If you search the net by "Schuman resonance", many things will come up including US government research institutions or observatories.
2)magnetized CDs
CDs are made of plastic and we think they are not magnetized. This is wrong. During the course of production, CDs are magnetized. A big source of magnetization is paint on CDs. They include ferrous elements such as cobalt, which are easily magnetized. CD manufacturers used to demagnetized before shipping their CDs. But they do not now to cut cost. This gives CDs bad effects. Bad sound. A Japanese small company sells a device to demagnetize entire CD.
This manufacturer insists MDs are more badly effected than CDs.
They say this is patented in U.S.
http://www.escort.co.jp/usr/gr98/dd.html (Only in Japanese. Only for picture.)
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Author: Don Poulsen
Date: 2001-11-27 13:31
I don't know if CDs are magnetized or not, but even if they are, this would not affect how they sound. The information on a CD is stored in the form of pits, which are read by a laser. The laser's ability to read is not affected by magnetic fields.
Also consider that if this problem existed, the CDs that are used to hold computer software would also be effected. The data and instructions read off of those CDs would be damaged. As a software engineer, I know that randomly changing even a few bits of information in a program could make that portion of the program useless, quite possibly rendering the whole program useless. It just isn't happening.
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