Vehicle and controlling method of vehicle
A vehicle and a controlling method thereof are disclosed. The vehicle includes a first seat in which a talker is seated; a second seat in which a passenger is seated; a plurality of speakers provided in the first seat and the second seat; a microphone for receiving the voice of the passenger or the voice of the talker; and a controller configured to control the speaker to output a masking sound tuned based on the voice of the talker or the voice of the passenger.
1. A vehicle comprising,
a first seat in which a first person is seated;
a second seat in which a second person is seated;
a plurality of speakers provided around or in the first seat and the second seat;
a microphone configured to receive the first person's voice; and
a controller configured to control the plurality of speakers to output a masking sound tuned based on the first person's voice and control auto gain control sensitivity of the microphone based on the masking sound so that the microphone reduces a received additional voice,
wherein the controller is further configured to tune the masking sound such that the masking sound is delayed output alternately for a predetermined time in the plurality of speakers, generate asymmetrically an output waveform of the masking sound, and control simultaneously to gradually reduce the volume of the masking sound output for a predetermined time.
2. The vehicle according to claim 1 ,
wherein at least one of the speakers is provided in a headrest of each or one of the first seat and the second seat.
3. The vehicle according to claim 1 further comprising:
a speaker system having two channels and comprising first and second ones of the plurality of speakers being provided on left and right sides of the headrest of the second seat, respectively;
wherein the controller is configured to control the first and second speakers so that the masking sound of the second speaker is delayed with respect to that of the first speaker.
4. The vehicle according to claim 1 ,
wherein the controller outputs background sounds.
5. The vehicle according to claim 4 , further comprising:
a GPS sensor;
wherein the controller outputs the background sound based on location information of the vehicle.
6. The vehicle according to claim 4 ,
wherein the controller controls the auto gain control sensitivity of the microphone based on a magnitude of the background sound.
7. The vehicle according to claim 6 ,
wherein the controller determines the frequency of the voice of the first person and the phase of the voice of the first person, and outputs a tuned masking sound to cancel the determined frequency.
8. The vehicle according to claim 4 ,
wherein the controller stores the plurality of background sounds, and outputs the masking sound according to a preset criterion when the first person starts speaking or when the background sound changes.
9. The vehicle according to claim 6 , further comprising:
an input unit configured to receive an operation start command.
10. A method of controlling a vehicle, comprising;
receiving voice of a first one of persons seating in the vehicle by a microphone;
controlling a plurality of speakers to output a masking sound tuned based on the first person's voice by a controller; and
controlling auto gain control sensitivity of the microphone based on the masking sound so that the microphone amplifies or reduces a received additional voice,
wherein the controlling of the plurality of speakers includes tuning the masking sound such that the masking sound is delayed output alternately for a predetermined time in the plurality of speakers, generating asymmetrically an output waveform of the masking sound, and controlling simultaneously to gradually reduce the volume of the masking sound output for a predetermined time.
11. The method according to claim 10 ,
wherein the plurality of speakers comprises speakers provided at a headrest of a first seat and a second seat.
12. The method according to claim 10 ,
wherein the controlling of the plurality of speakers comprises controlling each of the plurality of speakers provided on left and right sides of the headrest of the second seat and having two channels so that the masking sound is delayed output.
13. The method according to claim 10 ,
wherein the controlling of the plurality of speakers comprises outputting a background sound.
14. The method according to claim 13 , further comprising:
outputting the background sound based on the location information of the vehicle.
15. The method according to claim 13 , wherein controlling the auto gain control sensitivity of the microphone is further based on a magnitude of the background sound.
16. The method according to claim 10 ,
wherein the controlling of the plurality of speakers comprises determining a frequency of the first person's voice and a phase of the first person's voice, and outputting a tuned masking sound that cancels the determined frequency.
17. The method according to claim 16 ,
wherein the controlling of the plurality of speakers comprises outputting the masking sound according to a preset criterion when the first person starts speaking or when the background sound changes.
18. The method according to claim 10 , further comprising, receiving an operation start command by an input unit.