Title:
METHOD FOR SPEECH CONVERSION IN ARTIFICIAL AURIS INTERNA
Document Type and Number:
WIPO Patent Application WO/2005/013870
Kind Code:
A1
Abstract:
There are provided a method for speech conversion in an artificial auris interna and an artificial auris interna capable of providing speech near to natural speech to a person using the artificial auris interna and reproducing natural fluctuation at random with a value near to the periodicity unique to each channel. Within a signal frame, speech information is distinguished according to each frequency band by using band pass filters. Channel information on the corresponding frequency band is added to the speech information. For each channel, speech information having a large signal level within one channel is left so that the number of stimulus pulses is adjusted to be a frequency allowed for one channel. From all the speech information left for each channel, the speech information having a large signal level is left so that the number of stimulus pulses is adjusted to be a frequency allowed for the entire channel. The remaining speech information is transmitted to an electrode corresponding to the channel, thereby generating a stimulus pulse.
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Inventors:
KITAZAWA SHIGEYOSHI (JP)
KIRIYAMA SHINYA (JP)
DASHTSEREN ERDENEBAT (JP)
IWASAKI SATOSHI (JP)
KIRIYAMA SHINYA (JP)
DASHTSEREN ERDENEBAT (JP)
IWASAKI SATOSHI (JP)
Application Number:
PCT/JP2004/011077
Publication Date:
February 17, 2005
Filing Date:
August 03, 2004
Export Citation:
Assignee:
HAMAMATSU FOUND SCI & TECH PRO (JP)
KITAZAWA SHIGEYOSHI (JP)
KIRIYAMA SHINYA (JP)
DASHTSEREN ERDENEBAT (JP)
IWASAKI SATOSHI (JP)
KITAZAWA SHIGEYOSHI (JP)
KIRIYAMA SHINYA (JP)
DASHTSEREN ERDENEBAT (JP)
IWASAKI SATOSHI (JP)
International Classes:
A61N1/36; G10L21/00; H04R25/00; (IPC1-7): A61F11/00
Domestic Patent References:
| WO2001099470A1 | 2001-12-27 |
Foreign References:
| JP2003507143A | 2003-02-25 | |||
| JP2003521337A | 2003-07-15 |
Other References:
See also references of EP 1652498A4
Attorney, Agent or Firm:
Koshikawa, Takao (111-2 Itayamachi Hamamatsu-shi, Shizuoka, JP)
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