Data processing: speech signal processing – linguistics – language – Audio signal bandwidth compression or expansion
Reexamination Certificate
2006-03-28
2006-03-28
{hacek over (S)}mits, Talivaldis Ivars (Department: 2655)
Data processing: speech signal processing, linguistics, language
Audio signal bandwidth compression or expansion
C704S200100, C704S502000
Reexamination Certificate
active
07020615
ABSTRACT:
An improved representation of transients in audio signals comprises modifying transient locations in such a way that a transient can occur only at a beginning of a sinusoidal segment. The modification procedure comprises the steps:detecting a beginning and an end of a transient using an energy-based approach with two sliding rectangular windows;moving samples between the beginning and the end of the transient to the locations specified by the segmentation used; andtime-warping the signal parts in between the transients in order to fill the intervals between the modified transients.
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Heusdens Richard
Kleijn Willem Bastiaan
Vafin Renat
Van De Par Steven Leonardus Josephus Dimphina Elisabeth
Koninklijke Philips Electronics , N.V.
Rivero Minerva
{hacek over (S)}mits Talivaldis Ivars
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