Vehicle in cabin sound processing system

Patent metadata

Field	Value
Publication number	US-9800983-B2
Application number	US-201514807011-A
Country	US
Kind code	B2
Filing date	Jul 23, 2015
Priority date	Jul 24, 2014
Publication date	Oct 24, 2017
Grant date	Oct 24, 2017

Abstract

A sound system of a vehicle includes a plurality of microphones disposed in a cabin of the vehicle, a plurality of speakers disposed in the cabin of the vehicle, and a sound processor operable to process microphone output signals of the microphones to determine a voice signal of a speaking occupant in the vehicle at or near one of the microphones. The sound processor generates a processor output signal that is provided to at least some of the speakers. Responsive to the processor output signal, the at least some of the speakers generate sound representative of the voice signal of the speaking occupant to direct the sound towards other occupants in the vehicle, while one or more speakers at or near the seat occupied by the speaking occupant do not generate sound representative of the voice signal of the speaking occupant.

First claim

The invention claimed is:

1. A sound system of a vehicle, said sound system comprising:
a plurality of microphones disposed in a cabin of a vehicle equipped with said sound system, wherein each seat of the equipped vehicle is associated with at least one respective microphone of said plurality of microphones so that the respective microphone principally receives sound emanating from an occupant of that particular seat and does not principally receive sound emanating from occupants of other seats of the equipped vehicle;
a plurality of speakers disposed in the cabin of the equipped vehicle at or near respective seats of the equipped vehicle, wherein each seat of the equipped vehicle is associated with at least one respective speaker of said plurality of speakers so that the respective speaker generates sound principally toward an occupant of that particular seat and does not generate sound principally toward occupants of other seats of the equipped vehicle;
a sound processor operable to process microphone output signals of said microphones to determine a voice signal of a speaking occupant at a seat in the cabin of the equipped vehicle at or near an associated respective one of said microphones;
wherein, responsive to processing of microphone output signals, said sound processor generates a processor output signal that is representative of the voice signal and that is provided to some of said speakers, and wherein said some of said speakers comprises speakers associated with at least one other seat of the equipped vehicle that is occupied; and
wherein, responsive to said processor output signal, said some of said speakers generate sound representative of the voice signal of the speaking occupant to direct the sound towards an occupant at the at least one other seat in the cabin of the equipped vehicle while a speaker at or near the seat occupied by the speaking occupant does not generate sound representative of the voice signal of the speaking occupant so as to not direct the sound representative of the voice signal towards the speaking occupant.

2. The sound system of claim 1 , comprising a plurality of microphones exterior of the cabin of the equipped vehicle, said sound processor reducing noise in the processor output signal responsive to said exterior microphones.

3. The sound system of claim 2 , wherein said sound processor is operable to determine a noise of interest from the signals of said exterior microphones, and wherein said sound processor controls said speakers to generate sound representative of the noise of interest at least towards a driver of the equipped vehicle.

4. The sound system of claim 3 , wherein said noise of interest comprises at least one of (i) a siren of an emergency vehicle and (ii) a horn of another vehicle.

5. The sound system of claim 3 , wherein said sound processor controls said speakers so that the sound representative of the noise of interest is heard by the driver as if emanating from a direction towards the source of the sound of interest.

6. The sound system of claim 1 , wherein said sound processor reduces noise in the processor output signal via at least one of (i) an active noise cancellation technique, (ii) a human voice conception technique and (iii) a human voice separation technique to provide enhanced sound from said at least some of said speakers.

7. The sound system of claim 1 , comprising a plurality of cameras disposed in the equipped vehicle and having respective fields of view towards respective seats of the equipped vehicle, wherein at least one of said cameras captures images of a face of the speaking occupant for display of the speaking occupant's face on a video display screen in the equipped vehicle.

8. The sound system of claim 1 , wherein a user input is actuatable to select two or more occupants of the equipped vehicle for a conversation, and wherein one of the selected occupants is the speaking occupant, and wherein, responsive to said processor output signal, a speaker associated with the seat occupied by another selected occupant generates sound representative of the voice signal of the speaking occupant to direct the sound towards the other selected occupant while a speaker associated with a seat occupied by a non-selected occupant does not generate sound representative of the voice signal of the speaking occupant so as to not direct the sound towards the non-selected occupant.

9. The sound system of claim 1 , wherein, responsive to determination of at least one seat of the equipped vehicle being unoccupied, said sound system does not provide the processor output signal that is representative of the voice signal to at least one of said speakers that associated with the at least one unoccupied seat.

10. The sound system of claim 1 , comprising a plurality of cameras disposed in the equipped vehicle and having respective fields of view towards respective ones of the seats in the cabin of the equipped vehicle, wherein said cameras capture image data representative of a face area of an occupant sitting at the respective seat, and wherein, responsive to processing of image data captured by one of said cameras that is representative of the speaking occupant, the microphones are controlled to enhance the speaking occupant's voice separate from noise.

11. The sound system of claim 10 , comprising a plurality of displays for displaying images to occupants of the seats of the equipped vehicle, wherein, responsive to capture of image data representative of the face area of the speaking occupant, said system displays images of the speaking occupant on at least some of said displays for viewing by other occupants.

12. A sound system of a vehicle, said sound system comprising:
a plurality of microphones disposed in a cabin of a vehicle equipped with said sound system, wherein said plurality of microphones comprises at least one microphone disposed at or near respective ones of a plurality of seats in the cabin of the equipped vehicle so that each microphone principally receives sound emanating from an occupant of a respective seat and does not principally receive sound emanating from occupants of other seats of the equipped vehicle;
a plurality of speakers disposed in the cabin of the equipped vehicle, wherein said plurality of speakers comprises at least one speaker disposed at or near respective ones of the seats in the cabin of the equipped vehicle so that the each speaker generates sound principally toward an occupant of a respective seat and does not generate sound principally toward occupants of other seats of the equipped vehicle;
a sound processor operable to process microphone output signals of said microphones to determine a voice signal of a speaking occupant at one of the seats in the equipped vehicle at or near at least one of said microphones;
wherein, responsive to processing of microphone output signals, said sound processor generates a processor output signal that is representative of the voice signal of the speaking occupant and that is provided to at least some of said speakers at others of the seats in the equipped vehicle; and
wherein, responsive to said processor output signal, at least one of said speakers at at least one other occupied seat in the equipped vehicle generates sound representative of the voice signal of the speaking occupant to direct the sound towards at least one occupant at the at least one other occupied seat in the equipped vehicle, while a speaker at or near the seat occupied by the speaking occupant does not generate sound representative of the voice signal of the speaking occupant so as to not direct the sound representative of the voice signal towards the speaking occupant.

Assignees

• Magna Electronics Inc

Inventors

• Wacquant Sylvie
• Biemer Michael

Classifications

• H04S7/302

  Electronic adaptation of stereophonic sound system to listener position or orientation (H04S7/301 takes precedence) · CPC title

• H04R2227/009

  Signal processing in [PA] systems to enhance the speech intelligibility · CPC title

• G10L21/0208

  Noise filtering · CPC title

• H04R3/005

  for combining the signals of two or more microphones (specially adapted for hearing aids H04R25/407) · CPC title

• G10L2021/02087

  the noise being separate speech, e.g. cocktail party · CPC title