
US Patent No: 5,483,619
Number of patents in Portfolio can not be more than 2000
Method and apparatus for editing an audio signal
Stats
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Jan 9, 1996
Issued date -
Mar 10, 1993
filing date -
08/029,252
serial no -
Expired
status
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Abstract
An audio signal editing method and apparatus for use with original sound data which is already compressed and encoded in predictive form, for example ADPCM. To edit a desired portion from the original audio data, the method and apparatus reconstruct (encoded PCM) audio data from the original (ADPCM) audio data and encode a non-predictive unit to replace a first original audio data unit of the desired portion. Thus, the desired portion is rendered independent of preceding sample values, without having to be recoded entirely. An enhanced method and apparatus encode further replacement units to eliminate noise introduced by the basic method.
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International Classification(s)
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Cited Art
| Patent Info | (Count) | # Cites | Year |
|---|---|---|---|
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| 4,691,359 Speech synthesizer with repeated symmetric segment | 3 | 1983 | |
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| 5,243,582 Apparatus for reproducing digital audio information related to musical accompaniments | 48 | 1991 | |
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| 5,347,478 Method of and device for compressing and reproducing waveform data | 24 | 1992 | |