Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Hitachi Ltd
Original Assignee
Hitachi Ltd
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Publication date
Application filed by Hitachi LtdfiledCriticalHitachi Ltd
Priority to JP50143982ApriorityCriticalpatent/JPS5268302A/en
Publication of JPS5268302ApublicationCriticalpatent/JPS5268302A/en
PURPOSE: To obtain aural element piece with pretty valley between formant by extracting the valley portion of spectrum envelope line through linear prediction analysis method and by transforming the extracted block into dugdown envelope line and then returning it into waveform through Fourier adverse conversion.
COPYRIGHT: (C)1977,JPO&Japio
JP50143982A1975-12-051975-12-05Production of aural element piece
PendingJPS5268302A
(en)