acoustical speech power
11John F. Kennedy assassination conspiracy theories — President Kennedy, Jackie Kennedy, Nellie Connally and Governor John Connally, shortly before the assassination. There has long been suspicion of a government cover up of information about the assassination of John F. Kennedy on November 22, 1963 …
12History of radar — The history of radar starts with experiments by Heinrich Hertz in the late 19th century that showed that radio waves were reflected by metallic objects. This possibility was suggested in James Clerk Maxwell s seminal work on electromagnetism.… …
13Phonograph — Turntable redirects here. For other uses, see Turntable (disambiguation). Edison cylinder phonograph ca. 1899 …
14Gramophone record — A 12 inch (30 cm) 33⅓ rpm record (left), a 7 inch 45 rpm record (right), and a CD (above) A gramophone record, commonly known as a phonograph record (in American English), vinyl record (in reference to vinyl, the material most commonly used after …
15Categorical perception — is the perception of different sensory phenomena as being qualitatively,or categorically, different. It is opposed to continuous perception , the perception of different sensory phenomena as being located on a smooth continuum.Categorical… …
16motion-picture technology — Introduction the means for the production and showing of motion pictures. It includes not only the motion picture camera and projector but also such technologies as those involved in recording sound, in editing both picture and sound, in… …
17Sound film — …
18Artificial intelligence — AI redirects here. For other uses, see Ai. For other uses, see Artificial intelligence (disambiguation). TOPIO, a humanoid robot, played table tennis at Tokyo International Robot Exhibition (IREX) 2009.[1] Artificial intelligence ( …
19theatre — /thee euh teuhr, theeeu /, n. theater. * * * I Building or space in which performances are given before an audience. It contains an auditorium and stage. In ancient Greece, where Western theatre began (5th century BC), theatres were constructed… …
20Mel-frequency cepstrum — In sound processing, the mel frequency cepstrum (MFC) is a representation of the short term power spectrum of a sound, based on a linear cosine transform of a log power spectrum on a nonlinear mel scale of frequency. Mel frequency cepstral… …
