Title:
IN-AUTOMOBILE CONVERSATION EVALUATION VALUE CONVERSION DEVICE, IN-AUTOMOBILE CONVERSATION EVALUATION VALUE CONVERSION METHOD, AND PROGRAM
Document Type and Number:
WIPO Patent Application WO/2020/240768
Kind Code:
A1
Abstract:
The purpose of the present invention is to reduce the number of conversation tests required for quality evaluation of ICC. An evaluation value conversion device 3 converts, to a subjective evaluation value, an objective evaluation value related to quality of a conversation performed between a near-end acoustic region 100 and a far-end acoustic region 200 in an automobile in which a plurality of acoustic regions are predetermined. A voice signal picked up by a microphone M1 disposed in the near-end acoustic region 100 is emitted from a speaker S2 disposed in the far-end acoustic region 200. A voice signal picked up by a microphone M2 disposed in the far-end acoustic region 200 is emitted from a speaker S1 disposed in the near-end acoustic region 100. An objective evaluation value acquisition unit 33 acquires the objective evaluation value related to the quality of the conversation. A conversion unit 34 converts the objective evaluation value to the subjective evaluation value.
Inventors:
KURIHARA SACHIKO (JP)
HARADA NOBORU (JP)
HARADA NOBORU (JP)
Application Number:
PCT/JP2019/021487
Publication Date:
December 03, 2020
Filing Date:
May 30, 2019
Export Citation:
Assignee:
NIPPON TELEGRAPH & TELEPHONE (JP)
International Classes:
H04M1/24; H04M9/00
Foreign References:
| US20040186716A1 | 2004-09-23 | |||
| JP2019068237A | 2019-04-25 | |||
| JP2018064162A | 2018-04-19 |
Other References:
NAKAOKA, KEN, KATO,MASAMI: "Evaluation of VoIP Speech Quality using Objective Speech Quality Assessment ''PESQ``", ITE TECHNICAL REPORT, vol. 26, no. 47, 11 July 2002 (2002-07-11), pages 35 - 40
Attorney, Agent or Firm:
NAKAO, Naoki et al. (JP)
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