Method for training an automatic speech recognition system

Patent metadata

Field	Value
Publication number	US-10049658-B2
Application number	US-201314773142-A
Country	US
Kind code	B2
Filing date	Mar 7, 2013
Priority date	Mar 7, 2013
Publication date	Aug 14, 2018
Grant date	Aug 14, 2018

Abstract

A system and method for speech recognition is provided. Embodiments may include receiving, at a first computing device, a far-talk signal from a far-talk computing device, the far-talk signal transmitted using a first channel and corresponding to an audible sound. Embodiments may further include receiving, at the first computing device, a near-talk signal from a near-talk computing device, the near-talk signal transmitted using a second channel and corresponding to the audible sound, wherein the far-talk signal and the near-talk signal are received during an enrollment phase of a far-talk speech recognition system. Embodiments may also include updating, at the first computing device, one or more models associated with a far-talk speech recognition system based upon, at least in part, one or more characteristics of the far-talk signal and one or more characteristics of the near-talk signal.

First claim

What is claimed is:

1. A computer-implemented method comprising:
receiving, at a first server computing device via a network, a far-talk signal from a far-talk computing device having at least one processor, the far-talk signal transmitted using a first channel and corresponding to an audible sound of a user, wherein the network is at least one of the Internet or a local area network;
receiving, at the first server computing device via the network, a near-talk signal from a near-talk computing device having at least one processor, the near-talk signal transmitted using a second channel and corresponding to the audible sound of the user, wherein the far-talk signal and the near-talk signal are received during an enrollment phase of a far-talk speech recognition system; and
updating, at the first server computing device, one or more voice models associated with a far-talk speech recognition system that best match a speech pattern of the user with the one or more voice models utilizing, at least in part, one or more characteristics of the far-talk signal and one or more characteristics of the near-talk signal.

2. The method of claim 1 , wherein updating includes estimating one or more references for applying unsupervised adaptation techniques associated with the far-talk speech recognition system.

3. The method of claim 1 , wherein updating includes determining a non linear mapping between the far-talk signal and the near-talk signal.

4. The method of claim 1 , wherein updating includes determining at least one room impulse response characteristic.

5. The method of claim 1 , wherein updating includes optimizing at least one beam-forming setting.

6. The method of claim 1 wherein the near-talk device is a mobile phone.

7. The method of claim 6 , wherein the far-talk device is an in-car device.

8. The method of claim 1 , wherein receiving a far-talk signal includes receiving an identification code associated with the far-talk computing device.

9. The method of claim 1 , wherein receiving a near-talk signal includes receiving an identification code associated with the near-talk computing device.

10. The method of claim 1 , further comprising:
transmitting via the network, and using the first server computing device, the one or more models to the far-talk computing device.

11. The method of claim 1 wherein the near-talk device is a remote control and the far-talk device is a television or a device associated with a television.

12. A system comprising:
a first server computing device having at least one processor configured to receive, via a network, a far-talk signal from a far-talk computing device having at least one processor, the far-talk signal transmitted using a first channel and corresponding to an audible sound of a user, wherein the network is at least one of the Internet or a local area network, the first server computing device having the at least one processor being further configured to receive a near-talk signal from a near-talk computing device having at least one processor, the near-talk signal transmitted using a second channel and corresponding to the audible sound of the user, wherein the far-talk signal and the near-talk signal are received during an enrollment phase of a far-talk speech recognition system, the first server computing device having the at least one processor being further configured to update one or more voice models associated with a far-talk speech recognition system that best match a speech pattern of the user with the one or more voice models utilizing, at least in part, one or more characteristics of the far-talk signal and one or more characteristics of the near-talk signal.

13. The system of claim 12 , wherein updating includes estimating one or more references for applying unsupervised adaptation techniques associated with the far-talk speech recognition system.

14. The system of claim 12 , wherein updating includes determining a non linear mapping between the far-talk signal and the near-talk signal.

15. The system of claim 12 , wherein updating includes determining at least one room impulse response characteristic.

16. The system of claim 12 , wherein updating includes optimizing at least one beam-forming setting.

17. The system of claim 12 , wherein the near-talk device is at least one of a mobile phone and a remote control device.

18. The system of claim 12 , wherein the far-talk device is at least one of a television and an in-car device.

19. The system of claim 12 , wherein receiving a far-talk signal includes receiving an identification code associated with the far-talk computing device.

20. The system of claim 12 , wherein receiving a near-talk signal includes receiving an identification code associated with the near-talk computing device.

21. A computer-implemented method comprising:
transmitting, via a network, a far-talk signal from a far-talk computing device having at least one processor to a server computing device, the far-talk signal transmitted using a first channel and corresponding to an audible sound of a user, wherein the network is at least one of the Internet or a local area network;
transmitting, via the network, a near-talk signal from a near-talk computing device having at least one processor to a server computing device, the near-talk signal transmitted using a second channel and corresponding to the audible sound of the user, wherein the far-talk signal and the near-talk signal are received during an enrollment phase of a far-talk speech recognition system; and
updating, by the server computing device, one or more voice models associated with a far-talk speech recognition system that best match a speech pattern of the user with the one or more voice models utilizing, at least in part, one or more characteristics of the far-talk signal and one or more characteristics of the near-talk signal.

Assignees

• Nuance Communications Inc

Inventors

• Pinto Joel
• Anastasiadis Josef Damianus
• Willett Daniel

Classifications

• G10L2015/0635

  updating or merging of old and new templates; Mean values; Weighting · CPC title

• G10L15/20 Primary

  Speech recognition techniques specially adapted for robustness in adverse environments, e.g. in noise, of stress induced speech (G10L21/02 takes precedence) · CPC title

• G10L2015/0638

  Interactive procedures · CPC title

• G10L15/063

  Training · CPC title

• G10L15/07 Primary

  to the speaker · CPC title