Vehicle call system based on active noise control and method therefor

A vehicle call system based on active noise control, the system comprising:

• a plurality of active noise cancellation (ANC) microphones positioned in a vehicle to respectively correspond to locations of occupants within the vehicle;
• a plurality of speakers, each configured to output a talker voice;
• and
• a controller configured to:
• activate, when a speed of the vehicle falls within a predetermined range, an ANC microphone among the plurality of ANC microphones, wherein the ANC microphone remains deactivated when the speed of the vehicle is higher than an upper limit of the predetermined range, and wherein the ANC microphone remans deactivated when the speed of the vehicle is lower than a lower limit of the predetermined range,
• initially classify a talker based on a talker tone in a received voice signal of a counterpart during a call with the counterpart,
• further classify the talker by receiving a voice signal, through the ANC microphone, of the occupant that is output through the speaker, and
• match the speaker positioned at the location of the occupant corresponding to the talker.

A voice call method based on active noise control, the method comprising:

• activating, when a speed of the vehicle falls within a predetermined range, an active noise cancellation (ANC) microphone among a plurality of ANC microphones positioned in a vehicle and respectively corresponding to locations of occupants in the vehicle, wherein the ANC microphone remains deactivated when the speed of the vehicle is higher than an upper limit of the predetermined range, and wherein the ANC microphone remans deactivated when the speed of the vehicle is lower than a lower limit of the predetermined range;
• initially classifying a talker based on a talker tone of a received voice signal from a counterpart during a call with the counterpart;
• further classifying the talker by receiving a voice signal, through the ANC microphone, of an occupant in the vehicle that is output through a speaker of a plurality of speakers in the vehicle;
• matching the speaker positioned at the location of the occupant corresponding to the talker;
• and
• reproducing a call voice through the matched speaker,
• wherein the method further comprises:
• reducing, in response to the call being started and the ANC being activated, output of all of the plurality of speakers in the vehicle by a first ratio compared to an existing output of the plurality of speakers;
• and
• further reducing output of a speaker corresponding to a current talker by a second ratio in addition to the first ratio.