KEYWORD VOICE ACTIVATION IN VEHICLES

• US 20140114665A1
• Filed: 10/18/2013
• Published: 04/24/2014
• Est. Priority Date: 10/19/2012
• Status: Abandoned Application

• Current Assignee: Audience Corporation
• Original Assignee: Audience Corporation
• Inventors: Murgia, Carlo
• Application Number:
  US14/058,138
• Publication Number:
  US 20140114665A1
• Time in Patent Office: Days
• US Class Current: 704/275
• CPC Class Codes: G10L 2021/02166 Microphone arrays; Beamforming
• CPC Class Codes: G10L 21/0216 characterised by the method used for estimating noise
• CPC Class Codes: G10L 21/06 Transformation of speech into a non-audible representation, e.g. speech visualisation or speech processing for tactile aids G10L15/26 takes precedence
• CPC Class Codes: H04R 2227/009 Signal processing in [PA] systems to enhance the speech intelligibility
• CPC Class Codes: H04R 2499/13 Acoustic transducers and sound field adaptation in vehicles
• CPC Class Codes: H04R 27/00 Public address systems circuits for preventing acoustic reaction H04R3/02; circuits for distributing signals to loudspeakers H04R3/12; monitoring or testing arrangements for public address systems H04R29/007; amplifiers H03F
• CPC Class Codes: H04R 3/002 Damping circuit arrangements for transducers, e.g. motional feedback circuits
• CPC Class Codes: H04R 3/005 for combining the signals of two or more microphones specially adapted for hearing aids H04R25/407
• CPC Class Codes: H04R 5/027 Spatial or constructional arrangements of microphones, e.g. in dummy heads

Abstract

Systems and methods for keyword voice activation in vehicles are provided. In one example, a system comprises one or more microphones, a voice monitoring device, and an automatic speech recognition (ASR) system. The voice monitoring device can receive an acoustic signal from the microphones. A noise in the acoustic signal is reduced or suppressed to obtain a clean speech component. The ASR system may detect one or more keywords in the clean speech component and provide a command associated with the one or more keywords to vehicle systems. The system can associated a profile with the one or more keywords. The profile can include parameters specific to one operator or a group of operators. The parameters associated with the operator'"'"'s profile can be used in the noise suppression, identification of the operator, and/or detecting keywords in the clean speech component.

Claims

1. A method for keyword voice activation in a vehicle, the method comprising:

receiving, via one or more microphones, an acoustic signal;

suppressing noise in the acoustic signal to produce a clean speech component;

detecting one or more keywords in the clean speech component; and

providing a command associated with the one or more keywords to one or more vehicle systems.

2. The method of claim 1, wherein the one or more microphones comprise at least two microphones rigidly mounted inside the vehicle.

3. The method of claim 1, wherein the one or more microphones are installed in a wearable device.

4. The method of claim 1 further comprising:

associating a profile with the one or more keywords;

receiving parameters associating with the profile; and

configuring the one or more vehicle system using the parameters.

5. The method of claim 4, wherein the profile is associated with a single operator.

6. The method of claim 4, wherein the suppressing noise in the acoustic signal is based on the parameters associated with the profile.

7. The method of claim 4, wherein the detecting the one or more keywords in the clean speech component is based on the parameters associated with the profile.

8. The method of claim 4, wherein the parameters associated with the profile comprise:

a distance between the microphones;

distances between the microphones and a source of a voice;

a seat position; and

primary voice frequencies.

9. The method of claim 4, wherein the profile is associated with an operator of the vehicle and parameters are provided by the operator.

10. The method of claim 4, wherein the profile is associated with an operator and the parameters include primary voice frequencies associated with the operator.

11. A system for keyword voice activation in a vehicle, the system comprising

one or more microphones;

a voice monitoring device, the voice monitoring being configured to;

receive, via the one or more microphones, an acoustic signal;

suppress noise in the acoustic signal to obtain a clean speech component; and

provide the obtained clean speech component to an automatic speech recognition system, the automatic speech recognition system being configured to detect one or more keywords in the clean speech component; and

provide a command associated with the one or more keywords to one or more vehicle systems.

12. The system of claim 11, wherein the automatic speech recognition system is coupled with the one or more vehicle systems.

13. The system of claim 11, wherein the automatic speech recognition system is incorporated into the one or more vehicle systems.

14. The system of claim 11, wherein the automatic speech recognition system is separate from the voice monitoring device.

15. The system of claim 11, wherein the one or more microphones comprise at least two microphones rigidly mounted inside the vehicle.

16. The system of claim 11, wherein the one or more microphones are installed in a wearable device.

17. The system of claim 11, the system being further configured to:

associate a profile with the one or more keywords;

receive parameters associated with the profile, the parameters being for configuring the one or more vehicle systems.

18. The system of claim 17, wherein the profile is associated with a single operator or group of operators.

19. The system of claim 17, wherein the voice monitoring device is configured to suppress the noise based on the parameters associated with the profile.

20. The system of claim 17, wherein the system is configured to provide for detection of the one or more keywords in the clean speech component based on the parameters associated with the profile.

21. The system of claim 17, wherein the parameters associated with the profile comprise:

a distance between the microphones;

distances between the microphones and a source of a voice;

a seat position; and

primary voice frequencies associated with an operator.

22. The system of claim 17, wherein the profile is associated with an operator of the vehicle and parameters are provided by the operator.

23. The system of claim 17, wherein the profile is associated with an operator and the parameters include primary voice frequencies associated with the operator.

24. A non-transitory machine readable medium having embodied thereon a program, the program providing instructions for a method for keyword voice activation in a vehicle, the method comprising:

receiving, via one or more microphones, an acoustic signal;

suppressing noise in the acoustic signal to obtain a clean speech component; and

providing the obtained clean speech component to an automatic speech recognition system, the automatic speech recognition system being configured to detect one or more keywords in the clean speech component and provide a command associated with the one or more keywords to one or more vehicle systems.