- published: 06 May 2016
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The human voice consists of sound made by a human being using the vocal folds for talking, singing, laughing, crying, screaming, etc. Its frequency ranges from about 60 to 7000 Hz. The human voice is specifically that part of human sound production in which the vocal folds (vocal cords) are the primary sound source. Generally speaking, the mechanism for generating the human voice can be subdivided into three parts; the lungs, the vocal folds within the larynx, and the articulators. The lung (the pump) must produce adequate airflow and air pressure to vibrate vocal folds (this air pressure is the fuel of the voice). The vocal folds (vocal cords) are a vibrating valve that chops up the airflow from the lungs into audible pulses that form the laryngeal sound source. The muscles of the larynx adjust the length and tension of the vocal folds to ‘fine tune’ pitch and tone. The articulators (the parts of the vocal tract above the larynx consisting of tongue, palate, cheek, lips, etc.) articulate and filter the sound emanating from the larynx and to some degree can interact with the laryngeal airflow to strengthen it or weaken it as a sound source.
A Christian ( pronunciation (help·info), (from the Ancient Greek: Χριστιανός Christianos) is a person who adheres to Christianity, an Abrahamic, monotheistic religion based on the life and teachings of Jesus of Nazareth as recorded in the Canonical gospels and the letters of the New Testament. "Christian" derives from the Koine Greek word Christ, a translation of the Biblical Hebrew term Messiah.
Central to the Christian faith is the gospel, the teaching that humans have hope for salvation through the message and work of Jesus, and particularly, his atoning death on the cross. Christians also believe Jesus is the Messiah prophesied in the Hebrew Bible. Most Christians believe in the doctrine of the Trinity ("tri-unity"), a description of God as Father, Son and Holy Spirit. This includes the vast majority of churches in Christianity, although a minority are Non-trinitarians.
The term "Christian" is also used adjectivally to describe anything associated with Christianity, or in a proverbial sense "all that is noble, and good, and Christ-like." It is also used as a label to identify people who associate with the cultural aspects of Christianity, irrespective of personal religious beliefs or practices.