The Basic Properties of Sound

Let's see the sound quality. Sound characteristics can be divided into two categories: objective quality and subjective quality. Objective quality is related to the physical characteristics of the sound, such as intensity, frequency, spectrum, etc., that can be measured using specific equipment. On the other hand, the term "subjective" refers to the same attributes as above, but from the perspective of human perception, that is, the "distinctive" listeners that each of us interprets, understands and feels the same It has been exposed. Sound stimulation

Languages ​​different from their mother tongues in the most basic attributes (ie, sounds) are 1) being more difficult to learn, and 2) being represented by different neural circuits. The second study shows that the neural circuit necessary for the explicit element of explicit learning of a child has greatly changed during development and suggests that the neural circuit developed by children's learning is significantly different from adults ing. The third study shows that clear learning may be harmful to some aspects of language learning. Furthermore, when this primary matrix associated with this learning, ie the prefrontal cortex is taken offline, this adverse effect on explicit learning is improved, indicating that the difference between childhood and adult learning is related to neurogenicity. In short, the purpose of this series of research is not to classify phenomena of human sensitivity, but to explain why the sensitive period of language exists.

Sensitive language acquisition period: role of cognitive and neurological differences associated with age

Phonetics is about the measurement of certain measurable measurable physical properties and these cognitive speech. In phonetics research, the two fundamental aspects of speech, acoustics are the characteristics of the physical acoustic waves we hear and the definition of the shape of the channel to generate a specific speech output (speech) It is a change method. A particular way to visually express sound is the acoustic waveform. In many computer programs, people can record sound to a file and display the results on the screen. This means that it is possible to visually confirm the expression of the physical pattern of barometric pressure change. Because I'm interested in making the two words sound different in different parts, I can understand the physical difference more clearly by enlarging the scale. Part of vowel