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Measurement of Sound and Vibration Around Us

In this column, through conversation between characters, Ken and his father, interesting topics will be easily explained regarding "sound" and "vibration", which are familiar to us in our daily life.

If this column helps you to clear your cloud or solve your questions, it would be much appreciated.

Ken is in the first grade at junior high school. His father is an engineer working at the company for measuring and analyzing the sound and vibration. Here shall we start the topics of noise in a condominium which is one of the most familiar matter to many of us?

1	Sound at apartment - No.1 Floor impact sound
2	Sound at apartment - No.2 Air-borne-sound and structure-borne-sound
3	Sound at apartment - No.3 Sound isolation of window sash
4	Spectral masking
5	Temporal masking
6	Analog and digital
7	Sound diffraction
8	Doppler Effect
9	Absolute pitch
10	Music Hall Sound
11	Design of sound
12	Pascal and decibel
13	Octave
14	Equitempered scale and harmonic overtone
15	Cocktail party phenomenon
16	NAKIRYU (Crying dragon)
17	Fluctuation Sound
18	Sound direction
19	Binaural Effect
20	Soundscape
21	Sound of Hybrid Car
22	Sound and Brain
23	Mosquito Sound
24	Neighborhood Noise
25	Insect Noise
26	Sound Signal of Stations
27	Beat of sound
28	Difference Tone
29	Refraction of Sound and Wave (Reason Why Cape Is Especially Dangerous when a Tsunami Comes)
30	Whispering Gallery
31	Sound Speed (Why sound travels fast through iron?)
32	Seismic Wave
33	Volume of Sound
34	Noise Reduction and Sound Design of Products