All three channels "Concentration", "Relax", and "Sleep" play the same sound of the waves during the same day. Whichever one you choose, it sounds the same when it starts to ring, but the feature comes out as time passes. Wave sounds change every day according to the age of the moon. The characteristics of the three channels are listed below.
Concentration
Concentration plays only the sound of waves for 45 minutes. There are 24 kinds of sound of waves.
Relax
Relax reproduces the sound of waves with a "frequency following response" guidance sound superimposed on it.
Sleep
"Sleep" reproduces the sound of waves, the voices of living creatures, the meteorological sounds of rain and thunder, and piano music by superimposing "frequency following response" guidance sounds. The playback
time is 60 minutes.
The fundamental frequency of the induced sound "frequency following response" is 528 Hz when the moon is moving away from the earth and 432 Hz when it is moving closer. The difference between the left and right frequencies varies
from 20.3 Hz to 7.83 Hz by adding the induced sound "frequency following response" to the fundamental frequency when the tide comes in and subtracting it when the tide goes out. Also, the pitch of the piano changes in proportion
to the tide.
(Ex.1)
The table shows the changes in induced sounds "frequency following response" when the moon is away from the Earth and the tide is rising.
The time moves from left to right in the table.
Frequency of sound sent to left ear |
528Hz |
528Hz |
513.9Hz |
528Hz |
520.87Hz |
Frequency of sound sent to left ear |
528Hz |
507.7Hz |
528Hz |
519.5Hz |
528Hz |
Frequency difference between left and right ears |
0 |
20.3Hz |
14.1Hz |
8.5Hz |
7.83Hz |
(Ex.2)
The table shows the changes in induced sounds "frequency following response" when the moon is away from the Earth and the tide is rising. The time moves from left to right in the table.
Frequency of sound sent to left ear |
528Hz |
528Hz |
542.1Hz |
528Hz |
535.83Hz |
Frequency of sound sent to right ear |
528Hz |
548.3Hz |
528Hz |
536.5Hz |
528Hz |
Frequency difference between left and right ears |
0 |
20.3Hz |
14.1Hz |
8.5Hz |
7.83Hz |
(Ex.3)
the change in induced sound "frequency following response" as the moon approaches the earth and the tide is ebbing
Frequency of sound sent to left ear |
423Hz |
423Hz |
446.1 |
423Hz |
439.83Hz |
Frequency of sound sent to left ear |
423Hz |
452.3Hz |
423Hz |
440.5Hz |
423Hz |
Frequency difference between left and right ears |
0 |
20.3Hz |
14.1Hz |
8.5Hz |
7.83Hz |