Patent ID: 11924368
Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
Field: Computer technology (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 6:
7. A data correction method that compares, in a call performed between a plurality of communication terminals, an evaluation target sound in which a voice output from a first communication terminal of the plurality of communication terminals is recorded and a reference sound in which a voice spoken by a call partner using a second communication terminal of the plurality of communication terminals is recorded to correct test data used in evaluation of acoustic quality of the call, the method comprising:
determining, by a correction target determination processing, as a correction target section, a voiced section that does not include the voice of the call partner detected from an acoustic signal representing the reference sound; and
updating, by a correction execution processing, the correction target section of the acoustic signal representing the reference sound with a non-voice signal predetermined.