Visible Speech | |
---|---|
Script type | |
Creator | Alexander Melville Bell |
Time period | 1867 to the present |
Direction | Left-to-right |
Related scripts | |
Sister systems | 85 |
ISO 15924 | |
ISO 15924 | Visp(280),Visible Speech |
Unicode | |
U+E780 to U+E7FF in the ConScript Unicode Registry | |
Visible Speech is a system of phonetic symbols developed by British linguist Alexander Melville Bell in 1867 to represent the position of the speech organs in articulating sounds. Bell was known internationally as a teacher of speech and proper elocution and an author of books on the subject. The system is composed of symbols that show the position and movement of the throat, tongue, and lips as they produce the sounds of language, and it is a type of phonetic notation. The system was used to aid the deaf in learning to speak.
In 1864, Melville promoted his first works on Visible Speech, in order to help the deaf both learn and improve upon their speech (since the profoundly deaf could not hear their own pronunciation). [1] To help promote the system, Bell created two written short forms using his system of 29 modifiers and tones, 52 consonants, 36 vowels and a dozen diphthongs: [2] they were named World English, which was similar to the International Phonetic Alphabet, and also Line Writing, used as a shorthand form for stenographers. [3]
Melville's works on Visible Speech became highly notable, and were described by Édouard Séguin as being "...a greater invention than the telephone by his son, Alexander Graham Bell". [3] Melville saw numerous applications for his invention, including its worldwide use as a universal language. However, although heavily promoted at the Second International Congress on Education of the Deaf in Milan, Italy in 1880, after a period of a dozen years or so in which it was applied to the education of the deaf, Visible Speech was found to be more cumbersome, and thus a hindrance, to the teaching of speech to the deaf, compared to other methods, [4] and eventually faded from use.
Bell's son Alexander Graham Bell learned the symbols, assisted his father in giving public demonstrations of the system and mastered it to the point that he later improved upon his father's work. Eventually, Alexander Graham Bell became a powerful advocate of Visible Speech and oralism in the United States. The money he earned from his patent of the telephone and the sale of his Volta Laboratory patents helped him to pursue this mission.
In 1867, Alexander Melville Bell published the book Visible Speech: The Science of Universal Alphabetics. This book contains information about the system of symbols he created that, when used to write words, indicated pronunciation so accurately, that it could even reflect regional accents. [5] A person reading a piece of text handwritten in Melville Bell's system of characters could accurately reproduce a sentence the way it would be spoken by someone with a foreign or regional accent. In his demonstrations, Melville Bell employed his son, Alexander Graham Bell to read from the visible speech transcript of the volunteer's spoken words and would astound the audience by saying it back exactly as the volunteer had spoken it.
A few samples of the writing system invented by Melville Bell may be seen in the images on this page. These images depict Melville Bell's intention of creating a script in which the characters actually look like the position of the mouth when speaking them out loud. The system is useful not only because its visual representation mimicks the physical act of speaking, but because it does so, these symbols may be used to write words in any language, hence the name "Universal Alphabetics". [6]
Melville Bell's system was effective at helping deaf people improve their pronunciation, but his son Graham Bell decided to improve upon his father's invention by creating a system of writing that was even more accurate and employed the most advanced technology of the time.
Alexander Graham Bell later devised another system of visual cues that also came to be known as visible speech, yet this system did not use symbols written on paper to teach deaf people how to pronounce words. Instead, Graham Bell's system, developed at his Volta Laboratory in Washington, D.C., involved the use of a spectrogram, a device that makes "visible records of the frequency, intensity, and time analysis of short samples of speech". [5] The spectrogram translated sounds into readable patterns via a photographic process. This system was based on the idea that the eye should be able to read patterns of vocalizations in much the same way that the ear translates these vocalizations into meaning. Modern implementations of Bell's idea display sound spectra in real time and are used in phonology, [7] speech therapy and computer speech recognition.
The idea of the use of a spectrograph to translate speech into a visual representation (a spectrogram) was created in the hopes of enabling the deaf to use a telephone. [8] If the sounds could be translated into something readable, then a deaf person at the receiving end could then read out the pattern of speech to determine its meaning without having to hear what was said. The spectrograph readings could also be used to teach pronunciation by having a person speak into the spectrograph and watch a small television-like screen to monitor the precision of their utterances. [8]
Alexander Graham Bell was a Scottish-born inventor, scientist and engineer who is credited with patenting the first practical telephone. He also co-founded the American Telephone and Telegraph Company (AT&T) in 1885.
Daniel Jones was a London-born British phonetician who studied under Paul Passy, professor of phonetics at the École des Hautes Études at the Sorbonne. He was head of the department of phonetics at University College London.
In phonology and linguistics, a phoneme is a set of phones that can distinguish one word from another in a particular language.
A vowel is a syllabic speech sound pronounced without any stricture in the vocal tract. Vowels are one of the two principal classes of speech sounds, the other being the consonant. Vowels vary in quality, in loudness and also in quantity (length). They are usually voiced and are closely involved in prosodic variation such as tone, intonation and stress.
The photophone is a telecommunications device that allows transmission of speech on a beam of light. It was invented jointly by Alexander Graham Bell and his assistant Charles Sumner Tainter on February 19, 1880, at Bell's laboratory at 1325 L Street in Washington, D.C. Both were later to become full associates in the Volta Laboratory Association, created and financed by Bell.
Shorthand is an abbreviated symbolic writing method that increases speed and brevity of writing as compared to longhand, a more common method of writing a language. The process of writing in shorthand is called stenography, from the Greek stenos (narrow) and graphein. It has also been called brachygraphy, from Greek brachys (short), and tachygraphy, from Greek tachys, depending on whether compression or speed of writing is the goal.
Phonetic transcription is the visual representation of speech sounds by means of symbols. The most common type of phonetic transcription uses a phonetic alphabet, such as the International Phonetic Alphabet.
A spectrogram is a visual representation of the spectrum of frequencies of a signal as it varies with time. When applied to an audio signal, spectrograms are sometimes called sonographs, voiceprints, or voicegrams. When the data are represented in a 3D plot they may be called waterfall displays.
Acoustic phonetics is a subfield of phonetics, which deals with acoustic aspects of speech sounds. Acoustic phonetics investigates time domain features such as the mean squared amplitude of a waveform, its duration, its fundamental frequency, or frequency domain features such as the frequency spectrum, or even combined spectrotemporal features and the relationship of these properties to other branches of phonetics, and to abstract linguistic concepts such as phonemes, phrases, or utterances.
The invention of the telephone was the culmination of work done by more than one individual, and led to an array of lawsuits relating to the patent claims of several individuals and numerous companies.
Alexander Melville Bell was a teacher and researcher of physiological phonetics and was the author of numerous works on orthoepy and elocution.
A pronunciation respelling for English is a notation used to convey the pronunciation of words in the English language, which do not have a phonemic orthography.
The Elisha Gray and Alexander Graham Bell controversy concerns the question of whether Gray and Bell invented the telephone independently. This issue is narrower than the question of who deserves credit for inventing the telephone, for which there are several claimants.
Alexander Graham Bell honors and tributes include honors bestowed upon him and awards named for him.
The Volta Laboratory and the Volta Bureau were created in Georgetown, Washington, D.C., by Alexander Graham Bell.(19/20th-century scientist and inventor best known for his work on the telephone)
A writing system is a method of visually representing verbal communication, based on a script and a set of rules regulating its use.
The Bell Homestead National Historic Site, located in Brantford, Ontario, Canada, also known by the name of its principal structure, Melville House, was the first North American home of Professor Alexander Melville Bell and his family, including his last surviving son, scientist Alexander Graham Bell. The younger Bell conducted his earliest experiments in North America there, and later invented the telephone at the Homestead in July 1874. In a 1906 speech to the Brantford Board of Trade, Bell commented on the telephone's invention: "the telephone problem was solved, and it was solved at my father's home".
Professor David Charles Bell, was a Scottish-born scholar, author and professor of elocution. He was an elder brother to Alexander Melville Bell and uncle to Alexander Graham Bell.
Caroline Ardelia Yale was an American inventor and educator who revolutionized the teaching of hearing-impaired students. A collaborator of Alexander Graham Bell, her phonetic system became the most widely used in America. She worked most of her career at the Clarke School for the Deaf, eventually becoming Principal of the institution, and was involved in raising funds for the deaf through leading figures such as her childhood friend, Grace Coolidge, First Lady of the United States. She was also director and cofounder of the Alexander Graham Bell Association for the Deaf and Hard of Hearing.
Phonetics is a branch of linguistics that comprises the study of the sounds of human speech.