Write an essay on theorgans of speech and speech mechanism
Answers
Answer:
As we know an air stream is the basis of speech sounds because for the production of speech sounds, we need an air stream. This air stream is produced by an air stream mechanism. There are three main air stream mechanisms: (1) Pulmonic (2) Glottalic and (3) Velaric air stream mechanism. The pulmonic air-stream mechanism: The pulmonic air-stream mechanism consists of the lung and respiratory muscles. The walls of lungs act as initiator.
They are moved so the air is drawn into and pushed out.
Speech is the vocal aspect of communication made by human beings.
Human beings are able to express their ideas, feelings and emotions to the listener
through speech generated using vocal articulators (NIDCD, June 2010). Development of
speech is a constant process and requires a lot of practice. Communication is a string of
events which allows the speaker to express their feelings and emotions and the listener to
understand them. Speech communication is considered as a thought that is transformed
into language for expression.
Phil Rose & James R Robertson (2002) mentioned that voices of individuals
are complex in nature. They aid in providing vital information related to sex, emotional
state or age of the speaker. Although evidence from DNA always remains headlines,
DNA can‟t talk. It can‟t be recorded planning, carrying out or confessing to a crime. It
can‟t be so apparently directly incriminating. Perhaps, it is these features that contribute
to interest and importance of forensic speaker identification.
Speech signal is a multidimensional acoustic wave (as seen in figure 2.1.)
which provides information about the words or message being spoken, speaker identity,
language spoken, physical and mental health, race, age, sex, education level, religious
orientation and background of an individual (Schetelig T. & Rabenstein R., May 1998). Answer:
Explanation: