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Patent Searching and Data


Title:
AUDIO DATA DECODING DEVICE AND AUDIO DATA CONVERTING DEVICE
Document Type and Number:
Japanese Patent JP2008033231
Kind Code:
A
Abstract:

To provide an audio data decoding device and an audio data converting device that solve the problem that sound quality deteriorates when an error compensation system for audio data is employed.

The audio data decoding device employs a waveform encoding system and includes a loss detector which detects the audio data having loss, an audio data decoder which decodes the audio data to generate a first decoded audio signal, an audio data analyzer which extracts a first parameter from the first decoded audio signal, a parameter corrector which corrects the first parameter based upon the loss detection result, and a speech synthesizer which generates a first synthesized audio signal by using the corrected first parameter. Means for other solutions are also described.


Inventors:
ITO HIRONORI
OZAWA KAZUNORI
Application Number:
JP2007035663A
Publication Date:
February 14, 2008
Filing Date:
February 16, 2007
Export Citation:
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Assignee:
NEC CORP
International Classes:
G10L19/005; G10L19/16; H04L1/00
Attorney, Agent or Firm:
Masahiko Desk
Naoki Shimosaka
Yasuhisa Tanizawa