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AssigneeU.S. Philips Corporation
InventorsRaymond N. J. Veldhuis, Haiyan He
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A method is described for short-time Fourier-converting a speech signal and for resynthesizing an output speech signal from the modulus of its short-time Fourier transform and from an initial phase. In particular, after the Fourier converting the signal is subjected to a phase-specifying operation. Subsequently speech duration is affected by systematically maintaining, periodically repeating or periodically suppressing result intervals of the successive Fourier converting and phase affecting. Finally, a resynthesizing operation is executed. Speech pitch can likewise be affected through systematically excising or inserting signal intervals. Finally, the two strategies can be combined, so that ultimately, pitch and duration can be affected independently from each other.
A method for manipulating the characteristics of a speech signal, comprising a sequence of one or more iterating cycles including an initial iterating cycle, each iterating cycle comprising:
A method for manipulating the characteristics of a speech signal, comprising a sequence of one or more iterating cycles including an initial iterating cycle, each iterating cycle comprising:
A method for manipulating the characteristics of a speech signal, comprising a sequence of one or more iterating cycles including an initial iterating cycle, each iterating cycle comprising:
A device for manipulating the characteristics of a speech signal, comprising a means for conducting one or more iterating cycles including an initial iterating cycle, the means for conducting one or more iterating cycles comprising:
A device for manipulating the characteristics of a speech signal, comprising a means for conducting one or more iterating cycles including an initial iterating cycle, the means for conducting one or more iterating cycles comprising:
Dependencies are inferred from the claim text.