Title:
AUDIO DATA DECODING DEVICE
Document Type and Number:
WIPO Patent Application WO/2008/013135
Kind Code:
A1
Abstract:
An audio data decoding device using the waveform encoding method includes: a loss
detector, an audio data decoder, an audio data analyzer, a parameter correction unit,
and an audio synthesis unit. The loss detector detects whether audio data has
a loss. The audio data decoder decodes the audio data and generates a first decoded
audio signal. The audio data analyzer extracts a first parameter from the first
decoded audio signal. The parameter correction unit corrects the first parameter
according to the result of the loss detection. The audio synthesis generates
a first synthesis audio signal by using the corrected first parameter. Thus,
it is possible to prevent deterioration of the sound quality in audio data error
compensation.
Inventors:
ITO, Hironori (7-1 Shiba 5-chome, Minato-k, Tokyo 01, 1088001, JP)
伊藤 博紀 (〒01 東京都港区芝五丁目７番１号 日本電気株式会社内 Tokyo, 1088001, JP)
伊藤 博紀 (〒01 東京都港区芝五丁目７番１号 日本電気株式会社内 Tokyo, 1088001, JP)
Application Number:
JP2007/064421
Publication Date:
January 31, 2008
Filing Date:
July 23, 2007
Export Citation:
Assignee:
NEC CORPORATION (7-1 Shiba 5-chome, Minato-ku Tokyo, 01, 1088001, JP)
日本電気株式会社 (〒01 東京都港区芝五丁目７番１号 Tokyo, 1088001, JP)
ITO, Hironori (7-1 Shiba 5-chome, Minato-k, Tokyo 01, 1088001, JP)
日本電気株式会社 (〒01 東京都港区芝五丁目７番１号 Tokyo, 1088001, JP)
ITO, Hironori (7-1 Shiba 5-chome, Minato-k, Tokyo 01, 1088001, JP)
International Classes:
G10L19/00; G10L19/14
Attorney, Agent or Firm:
KUDOH, Minoru (6F KADOYA BLDG, 24-10 Minamiooi 6-chom, Shinagawa-ku Tokyo 13, 1400013, JP)
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