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Der Aufsatz widmet sich einigen markanten historischen Einzelleistungen auf dem Gebiet der mechanischen Sprachsynthese, die auch heute noch faszinierend, jedoch zumeist nur in groben Zügen bekannt sind. An der hier präsentierten Auswahl erweist sich sowohl die fesselnde Kraft eines einmal als grundsätzlich praktikabel erkannten Konzeptes der stimmlichen Anregung als auch die hieraus resultierende Originalität immer neuer Ansätze, diesem Syntheseprinzip zum technologischen Durchbruch zu verhelfen.
In mechanical speech synthesis from the 18th up to the 20th century, reed pipes were mainly used for the generation of the voice and the organ stop vox humana was central in this process. This has been described in different historical documents which report that the vox humana in some organs sounded like human vowels. In this study, tones of four different voces humanae were recorded to investigate their similarity to human vowels. The acoustical and perceptual analysis revealed that some, though not all, tones show a high similarity to selected vowels.
In mechanical speech synthesis reed pipes were mainly used for the generation of the voice. The organ stop "vox humana" played a central role for this concept. Historical documents report that the "vox humana" sounded like human vowels. In this study tones of four different "voces humanae" were recorded to investigate the similarity to human vowels. The acoustical and perceptual analysis revealed that some though not all tones show a high similarity to selected vowels.