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Intelligibility (communication)
In speech communication, intelligibility is a measure of how comprehensible speech is in given conditions. Intelligibility is affected by the level (loud but not too loud) and quality of the speech signal, the type and level of background noise, reverberation (some reflections but not too many), and, for speech over communication devices, the properties of the communication system. A common standard measurement for the quality of the intelligibility of speech is the Speech Transmission Index (STI). The concept of speech intelligibility is relevant to several fields, including phonetics, human factors, acoustical engineering, and audiometry. Important Influences Speech is considered to be the major method of communication between humans. Humans alter the way they speak and hear according to many factors, like the age, gender, native language and social relationship between talker and listener. Speech intelligibility may also be affected by pathologies such as speech and hearing ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Speech Transmission Index
Speech Transmission Index (STI) is a measure of speech transmission quality. The absolute measurement of speech intelligibility is a complex science. The STI measures some physical characteristics of a transmission channel (a room, electro-acoustic equipment, telephone line, etc.), and expresses the ability of the channel to carry across the characteristics of a speech signal. STI is a well-established objective measurement predictor of how the characteristics of the transmission channel affect speech intelligibility. The influence that a transmission channel has on speech intelligibility is dependent on: * the speech level * frequency response of the channel * non-linear distortions * background noise level * quality of the sound reproduction equipment * echos ( reflections with delay > 100ms) * the reverberation time * psychoacoustic effects (masking effects) History The STI was introduced by Tammo Houtgast and Herman Steeneken in 1971, and was accepted by Acoustical Society ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Common Intelligibility Scale
Speech Transmission Index (STI) is a measure of speech transmission quality. The absolute measurement of speech intelligibility is a complex science. The STI measures some physical characteristics of a transmission channel (a room, electro-acoustic equipment, telephone line, etc.), and expresses the ability of the channel to carry across the characteristics of a speech signal. STI is a well-established objective measurement predictor of how the characteristics of the transmission channel affect speech intelligibility. The influence that a transmission channel has on speech intelligibility is dependent on: * the speech level * frequency response of the channel * non-linear distortions * background noise level * quality of the sound reproduction equipment * echos ( reflections with delay > 100ms) * the reverberation time * psychoacoustic effects (masking effects) History The STI was introduced by Tammo Houtgast and Herman Steeneken in 1971, and was accepted by Acoustical Society ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sound
In physics, sound is a vibration that propagates as an acoustic wave, through a transmission medium such as a gas, liquid or solid. In human physiology and psychology, sound is the ''reception'' of such waves and their ''perception'' by the brain. Only acoustic waves that have frequencies lying between about 20 Hz and 20 kHz, the audio frequency range, elicit an auditory percept in humans. In air at atmospheric pressure, these represent sound waves with wavelengths of to . Sound waves above 20 kHz are known as ultrasound and are not audible to humans. Sound waves below 20 Hz are known as infrasound. Different animal species have varying hearing ranges. Acoustics Acoustics is the interdisciplinary science that deals with the study of mechanical waves in gasses, liquids, and solids including vibration, sound, ultrasound, and infrasound. A scientist who works in the field of acoustics is an ''acoustician'', while someone working in the field of acoustica ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Self-conscious
Self-consciousness is a heightened sense of awareness of oneself. It is not to be confused with consciousness in the sense of qualia. Historically, "self-consciousness" was synonymous with "self-awareness", referring to a state of awareness that one exists and that one has consciousness. While "self-conscious" and "self-aware" are still sometimes used interchangeably, particularly in philosophy, self-consciousness is now also commonly used to refer to a preoccupation with oneself, especially with how others might perceive one's appearance or one's actions. An unpleasant feeling of self-consciousness may occur when one realizes that one is being watched or observed, the feeling that "everyone is looking" at oneself. Some people are habitually more self-conscious than others. Unpleasant feelings of self-consciousness are sometimes associated with shyness or paranoia. Impairment When feeling self-conscious, one becomes aware of even the smallest of one's own actions. Such awareness c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vocabulary
A vocabulary is a set of familiar words within a person's language. A vocabulary, usually developed with age, serves as a useful and fundamental tool for communication and acquiring knowledge. Acquiring an extensive vocabulary is one of the largest challenges in learning a second language. Definition and usage Vocabulary is commonly defined as "all the words known and used by a particular person". Productive and receptive knowledge The first major change distinction that must be made when evaluating word knowledge is whether the knowledge is productive (also called achieve or active) or receptive (also called receive or passive); even within those opposing categories, there is often no clear distinction. Words that are generally understood when heard or read or seen constitute a person's receptive vocabulary. These words may range from well known to barely known (see degree of knowledge below). A person's receptive vocabulary is usually the larger of the two. For exampl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Syntax
In linguistics, syntax () is the study of how words and morphemes combine to form larger units such as phrases and sentences. Central concerns of syntax include word order, grammatical relations, hierarchical sentence structure ( constituency), agreement, the nature of crosslinguistic variation, and the relationship between form and meaning (semantics). There are numerous approaches to syntax that differ in their central assumptions and goals. Etymology The word ''syntax'' comes from Ancient Greek roots: "coordination", which consists of ''syn'', "together", and ''táxis'', "ordering". Topics The field of syntax contains a number of various topics that a syntactic theory is often designed to handle. The relation between the topics is treated differently in different theories, and some of them may not be considered to be distinct but instead to be derived from one another (i.e. word order can be seen as the result of movement rules derived from grammatical relations). Se ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hearing Impairment
Hearing loss is a partial or total inability to hear. Hearing loss may be present at birth or acquired at any time afterwards. Hearing loss may occur in one or both ears. In children, hearing problems can affect the ability to acquire spoken language, and in adults it can create difficulties with social interaction and at work. Hearing loss can be temporary or permanent. Hearing loss related to age usually affects both ears and is due to cochlear hair cell loss. In some people, particularly older people, hearing loss can result in loneliness. Deaf people usually have little to no hearing. Hearing loss may be caused by a number of factors, including: genetics, ageing, exposure to noise, some infections, birth complications, trauma to the ear, and certain medications or toxins. A common condition that results in hearing loss is chronic ear infections. Certain infections during pregnancy, such as cytomegalovirus, syphilis and rubella, may also cause hearing loss in the child. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clear Speech
Clear may refer to: *Transparency and translucency, the physical property of allowing light to pass through Arts and entertainment Music Groups * Clear (Christian band), an American CCM group from Cambridge, Minnesota * Clear (hardcore band), a vegan straight edge hardcore group from Utah Albums * Clear (Bomb the Bass album), ''Clear'' (Bomb the Bass album), 1995 * Clear (Cybotron album), ''Clear'' (Cybotron album), originally and later titled ''Enter'', or the title song (see below), 1983 * Clear (Spirit album), ''Clear'' (Spirit album) or the title song, 1969 * Clear (EP), ''Clear'' (EP), by Periphery, 2014 * ''Clear'', by James Ferraro, 2008 * ''Clear'', an EP by Summer Walker, 2019 Songs * Clear (Cybotron song), "Clear" (Cybotron song), 1983 * Clear (Maaya Sakamoto song), "Clear" (Maaya Sakamoto song), 2018 * "Clear!", by Kardinal Offishall, 2009 * "Clear", by Miley Cyrus from ''Hannah Montana 2: Meet Miley Cyrus'', 2007 * "Clear", by Needtobreathe from ''Hard Love (album), ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Screaming
A scream is a loud speech production, vocalization in which air is passed through the vocal cords with greater force than is used in regular or close-distance vocalisation. This can be performed by any creature possessing lungs, including humans. A scream is often an instinctive or reflex action, with a strong emotional aspect, like fear, pain, annoyance, Surprise (emotion), surprise, joy, wikt:excitement, excitement, anger, etc. Troponyms A large number of words exist to describe the act of making loud vocalizations, whether intentionally or in response to stimuli, and with specific nuances. For example, an early twentieth century synonym guide places variations under the heading of "call", and includes synonyms such as: bawl, bellow, clamor, cry (out), ejaculate, exclaim, roar, scream, shout, shriek, vociferate, and yell, each with its own implications.James Champlin Fernald, "Call", ''English Synonyms and Antonyms: With Notes on the Correct Use of Prepositions" (1914), p. 13 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lombard Effect
250 px, noise_pollution.html"_;"title="Great_tits_sing_at_a_higher_frequency_in_noise_pollution">noise_polluted_urban_surroundings_than_quieter_ones_to_help_overcome_the_auditory_masking_that_would_otherwise_impair_other_birds_hearing_their_bird_vocalization.html" "title="auditory_masking.html" ;"title="noise_pollution.html" ;"title="Great tits sing at a higher frequency in noise pollution">noise polluted urban surroundings than quieter ones to help overcome the auditory masking">noise_pollution.html" ;"title="Great tits sing at a higher frequency in noise pollution">noise polluted urban surroundings than quieter ones to help overcome the auditory masking that would otherwise impair other birds hearing their bird vocalization">song. Although great tits achieve a change in song frequency by switching song types, in other urban birds the change in frequency might be related to the Lombard effect. For instance, in humans, the Lombard effect results in speakers adjusting frequency Th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Human Brain
The human brain is the central organ of the human nervous system, and with the spinal cord makes up the central nervous system. The brain consists of the cerebrum, the brainstem and the cerebellum. It controls most of the activities of the body, processing, integrating, and coordinating the information it receives from the sense organs, and making decisions as to the instructions sent to the rest of the body. The brain is contained in, and protected by, the skull bones of the head. The cerebrum, the largest part of the human brain, consists of two cerebral hemispheres. Each hemisphere has an inner core composed of white matter, and an outer surface – the cerebral cortex – composed of grey matter. The cortex has an outer layer, the neocortex, and an inner allocortex. The neocortex is made up of six neuronal layers, while the allocortex has three or four. Each hemisphere is conventionally divided into four lobes – the frontal, temporal, parietal, and occipital lo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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