Sound

Sound(It is, with) with, objectVibrationInside, frequency humanAudible limitsIt points to those which are.Sound waveAlso you say. As for the object which vibrates the normality air, but the other things vapor・ liquid・ solid matter includes, (example: When sound is heard at underwater and the like). Those which is on the audible offshore the ultra wave or call frequency low. Information of sound waveHearingIt is converted by the information of nervous activity by system, brain "it is sound", that it is recognized (HearingReference).

wind and the like it is not the vibration, sound you do not call, the vibration which occurs (however due to the wind is another).

As the method of generating sound, object with various methods, there is a method of conveying the vibration to the air and a method etc. of generating the vibration of the air by the fact that the flow of the air which is strong in only the direction of specification is created.

• It rubs the object, as the method of vibrating the object, (ViolinAnd personVocal chord) It repels, (GuitarAnd so on), it throws the object, ( percussion instrument、 piano and the like), it vibrates the object electrically ( speaker.
• As for the phenomenon which generates the vibration of the air from the flow of the strong air,CaveThe wind sounding in and,WhistleAnd so on it is seen.

Sound(It is consequence) with voice of the person, namely personUtterance organIt is the sound which is given out via. As a base elementVowelWithConsonantIt is.

HumanHearingQuality of the system is called psychological sound,MP3 and the like.

Related item

• Character of sound

speed of sound -- Doppler effect -- Noise -- Psychological sound -- Groan -- Harmonic overtone -- Difference tone -- Sound wave -- music

Sound high -- Sound it is strong -- Timbre

• Acoustic equipment

musical instrument

• computer

Desktop music、Information、 file format、 data compression

• Certificate of merit of sound, hundred selections

The sound scenery hundred selection of Japan（The Enviromental Agency)

• Type of sound

Sound

music

Noise

• In addition

It does and the tide ど does

Bird、 animal、InsectAnd so on calling voice

Sound(It is) with Chinese character "Reading aloud seeing"Is.