New method for fast continuous measurement of the lip-opening area
An electronic device for measuring the articulatory parameter ’’lip-opening area’’ is presented. The measurement rate is 50 values per second. Utilizing the video signal of a TV camera, the device produces a voltage proportional to the dark area of the mouth opening surrounded by a bright boundary (...
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| Veröffentlicht in: | The Journal of the Acoustical Society of America 1977-08, Vol.62 (2), p.474-476 |
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| container_end_page | 476 |
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| container_issue | 2 |
| container_start_page | 474 |
| container_title | The Journal of the Acoustical Society of America |
| container_volume | 62 |
| creator | Kretschmar, J |
| description | An electronic device for measuring the articulatory parameter ’’lip-opening area’’ is presented. The measurement rate is 50 values per second. Utilizing the video signal of a TV camera, the device produces a voltage proportional to the dark area of the mouth opening surrounded by a bright boundary (lips painted white). High contrast is achieved by using fluorescent paint and ultraviolet illumination. As an example, a measured lip-opening area is shown as a function of time. |
| doi_str_mv | 10.1121/1.381514 |
| format | Article |
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| fulltext | fulltext |
| identifier | ISSN: 0001-4966 |
| ispartof | The Journal of the Acoustical Society of America, 1977-08, Vol.62 (2), p.474-476 |
| issn | 0001-4966 1520-8524 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_84012902 |
| source | MEDLINE; AIP Acoustical Society of America |
| subjects | Electronics - instrumentation Fluorescence Humans Lip Mouth Speech - physiology Television Tongue Tooth Ultraviolet Rays |
| title | New method for fast continuous measurement of the lip-opening area |
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