Method and apparatus for processing speech signal adaptive to noise environment

A voice signal processing apparatus comprising:

• at least one microphone configured to acquire a near-end noise signal and a near-end voice signal;
• a receiver configured to acquire a far-end voice signal according to an incoming call;
• a controller configured to determine a noise control parameter and a voice signal change parameter based on at least one of information about the near-end voice signal, information about the near-end noise signal, or information about the far-end voice signal;
• a noise reducer configured to generate an anti-phase signal of the near-end noise signal based on the noise control parameter;
• a voice signal changer configured to change the far-end voice signal so as to improve articulation of the far-end voice signal based on information related to at least one of the voice signal change parameter, the near-end noise signal, or the anti-phase signal;
• and
• an outputter configured to output the anti-phase signal and the changed far-end voice

A non-transitory computer-readable recording medium storing;

• instructions that, when executed by a processor, cause the processor to:
• acquire a near-end noise signal and a near-end voice signal by using at least one microphone;
• acquire a far-end voice signal according to an incoming call,
• determine a noise control parameter and a voice signal change parameter based on at least one of information about the near-end voice signal information about the near-end noise signal, or information about the far-end voice signal:
• generate an anti-phase signal of the near-end noise signal based on the noise control parameter;
• change the far-end voice signal to improve articulation of the far-end voice signal based. on information related to at least one of the voice signal change parameter, the near-end noise signal, or the anti-phase signal:
• and
• output the anti-phase signal and the changed far-end voice signal.