| 摘要 |
<p>PURPOSE:To secure voice input which is high articulation to an ambient noise for a diversity of seat attitudes and sitting persons by providing a seat attitude detecting means, plural acoustic converting means and their selecting means, and a selection control means. CONSTITUTION:The selection control means 6 supplies the selecting means 68 a signal which specifies one acoustic converting means predetermined for a seat attitude detected by the seat attitude detecting means 43 and 44 corresponding to the detected seat attitude and the means 68 outputs the electric signal of the acoustic converting means specified among the acoustic converting means 51-57. Thus, the position of the mouth of a speaker and the voicing direction can be estimated from the seat attitude, so the selection control means 6 can assign the acoustic converting means which can extracts the voicing of a sitting person with the highest level for each seat attitude, and consequently the acoustic converting means which suits most for voice reception is selected 68 automatically corresponding to the seat attitude.</p> |
