Method and apparatus for reproducing audio information

Details Method and apparatus for reproducing audio information Method and apparatus for reproducing audio information

2005-03-08

2005-03-08

McFadden, Susan (Department: 2655)

Data processing: speech signal processing, linguistics, language

Speech signal processing

Application

C704S275000, C704S500000

Reexamination Certificate

active

06865537

ABSTRACT:
A request for reading audio information is sent to an audio information source in accordance with an amount of information accumulated in a buffer memory, a predetermined amount of audio information is read from the buffer memory in accordance with a preset speed magnification, and the predetermined amount of audio information is reproduced after undergoing a reproducing speed conversion treatment. First portions of the audio information may be successively cut out in accordance with window functions, connected together, and rendered to serve as an output for converting a reproducing speed in a first channel. Second portions of the audio information may be successively cut out in accordance with window functions, connected together, and rendered to serve as an output for converting a reproducing speed in a second channel. The audio information may be independently reproduced through the first and second channels.

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B. Grill et al., “Information Technolofy—very low bitrate audio-visual coding,” Part3: Audio, ISO/IEC FCD 14496-3 Subpart 1, May, 1998.*
A. Amir et al., “Using audio time scale modification for video browsing,” Proc. 33rd Annual Hawaii International Conference on System Sciences 2000, vol. 1, Jan. 2000.*
W. Verhelst et al., “An overlap-add technique based on waveform similarity (WSOLA) for high quality time-scale modification of speech,” IEEE ICASSP '93, vol. 2, pp. 554-557, Apr. 1993.*
J. Makhoul et al., “Time-scale modification in medium to low rate speech coding,” IEEE ICASSP '86, vol. 11, pp. 1705-1708, Apr. 1986.

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