Audio command adaptive processing system and method

Patent metadata

Field	Value
Publication number	US-2016019891-A1
Application number	US-201414336181-A
Country	US
Kind code	A1
Filing date	Jul 21, 2014
Priority date	Jul 21, 2014
Publication date	Jan 21, 2016
Grant date	—

Abstract

A system and method are provided for adaptively processing audio commands supplied by a user in an aircraft cabin, and includes receiving ambient noise in the aircraft cabin via one or more audio input device, sampling, with a processor, the received ambient noise, and analyzing, in the processor, the sampled ambient noise and, based on the analysis, selecting one or more filter functions and adjusting one or more filter parameters associated with the one or more selected filter functions. Audio and ambient noise are selectively received via the one or more audio input devices, and are filtered, through the selected one or more filter functions, to thereby supply filtered audio.

First claim

What is claimed is:

1 . A method for adaptively processing audio commands supplied by a user in an aircraft cabin, comprising the steps of:
receiving ambient noise in the aircraft cabin via one or more audio input device; sampling, with a processor, the received ambient noise; analyzing, in the processor, the sampled ambient noise and, based on the analysis, selecting one or more filter functions and adjusting one or more filter parameters associated with the one or more selected filter functions; selectively receiving audio and ambient noise via the one or more audio input device; and filtering, through the selected one or more filter functions, the audio and ambient noise supplied to the one or more audio input devices, to thereby supply filtered audio.

2 . The method of claim 1 , wherein:
the step of analyzing comprises analyzing the sampled ambient noise for power in specific frequency bands; the step of selecting the one or more filter types and adjusting the one or more filter parameters is based at least in part on the power in one or more of the specific frequency bands.

3 . The method of claim 1 , further comprising:
determining, in the processor, an aircraft type; and selecting the one or more filter types and adjusting the one or more filter parameters based additionally on the determined aircraft type.

4 . The method of claim 3 , further comprising:
determining, in the processor, a location with the determined aircraft type; and selecting the one or more filter types and adjusting the one or more filter parameters based additionally on the determined location within the determined aircraft type.

5 . The method of claim 3 , further comprising:
receiving information from other aircraft and passengers; and selecting the one or more filter types and adjusting the one or more filter parameters based additionally on the received feedback.

6 . The method of claim 1 , further comprising:
analyzing the audio supplied to the one or more audio input devices to determine when it includes human speech, and supplying the filtered audio to a speech recognizer when it is determined that the audio supplied to the audio input device includes human speech, wherein the speech recognizer supplies one or more recognized words.

7 . The method of claim 6 , further comprising:
determining when a number of recognized words exceeds a predetermined number within a predetermined time period; and re-initializing the one or more filter functions when is determined that the number of recognized words exceeds the predetermined number within the predetermined time period.

8 . The method of claim 6 , further comprising:
analyzing the one or more recognized words to discern an intent thereof; and re-initializing the one or more filter functions when the intent cannot be discerned.

9 . The method of claim 1 , further comprising:
determining a position of the user within the aircraft cabin; at least selectively generating an aircraft cabin control command based on the one or more recognized words and on the position of the user.

10 . The method of claim 1 , further comprising:
selectively rendering, on a display device, one or more user interfaces based on the one or more recognized words.

11 . A system for adaptively processing audio commands supplied by a user in an aircraft cabin, comprising the steps of:
one or more audio input devices adapted to receive ambient noise in the aircraft cabin and supply ambient noise signals representative thereof, and to at least selectively receive audio and ambient noise and supply audio signals representative thereof; and a processing system in operable communication with the one or more audio input devices, the processing system configured to:
(i) sample and analyze the received ambient noise and, based on the analysis, implement one or more filter functions and adjust one or more filter parameters associated with the one or more selected filter functions, and
(ii) filter, through the selected one or more filter functions, the audio and ambient noise supplied to the one or more audio input devices, to thereby supply filtered audio.

12 . The system of claim 11 , wherein the processing system is further configured to:
analyze the sampled ambient noise for power in specific frequency bands; select the one or more filter types and adjust the one or more filter parameters based at least in part on the power in one or more of the specific frequency bands.

13 . The system of claim 11 , wherein the processing system is further configured to:
receive data representative of an aircraft type; and select the one or more filter types and adjusting the one or more filter parameters based additionally on the determined aircraft type.

14 . The system of claim 13 , wherein the processing system is further configured to:
receive data representative of a location with the determined aircraft type; and select the one or more filter types and adjust the one or more filter parameters based additionally on the determined location within the determined aircraft type.

15 . The system of claim 13 , wherein the processing system is further configured to:
receive information from other aircraft and passengers; and select the one or more filter types and adjust the one or more filter parameters based additionally on the received feedback.

16 . The system of claim 11 , wherein the processing system is further configured to:
implement a speech recognizer that supplies one or more recognized words; analyze the audio supplied to the one or more audio input devices to determine when it includes human speech; and process the filtered audio in the speech recognizer when it is determined that the audio supplied to the audio input device includes human speech.

17 . The system of claim 16 , wherein the processing system is further configured to:
determine when a number of recognized words exceeds a predetermined number within a predetermined time period; and re-initialize the one or more filter functions when is determined that the number of recognized words exceeds the predetermined number within the predetermined time period.

18 . The system of claim 17 , wherein the processing system is further configured to:
analyze the one or more recognized words to discern an intent thereof; and re-initialize the one or more filter functions when the intent cannot be discerned.

19 . The system of claim 16 , wherein the processing system is further configured to:
receive data representative of a position of the user within the aircraft cabin; and at least selectively generate an aircraft cabin control command based on the one or more recognized words and on the position of the user.

20 . The system of claim 16 , further comprising:
a display device in operable communication with the processing system, wherein the processing system is further configured to selectively render, on the display device, one or more user interfaces based on the one or more recognized words.

Assignees

• Honeywell Int Inc

Inventors

• Martinez Steven
• Mead Stephen
• Paulraj Vasantha Selvi

Classifications

• G10L2021/02165

  Two microphones, one receiving mainly the noise signal and the other one mainly the speech signal · CPC title

• B64C2220/00

  Active noise reduction systems · CPC title

• G10L21/0216 Primary

  characterised by the method used for estimating noise · CPC title

• G10L2015/223

  Execution procedure of a spoken command · CPC title

• G10L21/10

  Transforming into visible information · CPC title