Speech signal processing method, speech signal processing apparatus, and program

A voice signal processing device comprising:

• an acquisition unit that acquires an output value indicating whether to perform voice enhancement on an observation signal in which a voice or noise of another speaker overlaps with a voice of a target speaker, or indicating a degree of necessity of performing the voice enhancement;
• and
• a determination unit that decides, under a predetermined condition, a ratio between the observation signal and an enhancement signal generated by the voice enhancement using the output value acquired by the acquisition unit, to determine an input signal to be used for the voice recognition.

(canceled)

A computer-readable non-transitory recording medium storing computer-executable program instructions that when executed by a processor cause a computer to execute a voice signal processing program generation method comprising:

• acquiring an output value indicating whether to perform voice enhancement on an observation signal in which a voice or noise of another speaker overlaps with a voice of a target speaker, or indicating a degree of necessity of performing the voice enhancement;
• and
• deciding, under a predetermined condition, a ratio between the observation signal and an enhancement signal generated by the voice enhancement using the output value that has been acquired, to determine an input signal to be used for voice recognition.