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Adaptive ambient sound suppression and speech tracking

An adaptive, speech technology, applied in speech analysis, stereo system, microphone mouth/microphone accessories, etc., can solve problems such as spontaneity and ease of use

Active Publication Date: 2011-07-20
MICROSOFT TECH LICENSING LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these schemes may negatively affect the spontaneity and ease of use expected from speech input environments

Method used

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  • Adaptive ambient sound suppression and speech tracking
  • Adaptive ambient sound suppression and speech tracking
  • Adaptive ambient sound suppression and speech tracking

Examples

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Embodiment Construction

[0009] figure 1 is a schematic diagram of an embodiment of an operating environment 100 for an embodiment of an audio input device 102 for providing audio input through a microphone array of the audio input device 102 ( figure 1 Shown in the middle box 150) the speech input received from the speech source S suppresses the ambient sound. For example, operating environment 100 may represent a home theater environment, a video game play space, or the like. It should be understood that operating environment 100 is an example operating environment; the size, configuration, and arrangement of the various elements of the operating environment are depicted purely for purposes of illustration. Other suitable operating environments may also be used with the audio input device 102 .

[0010] In addition to audio input device 102 , operating environment 100 may include remote computing device 104 . In some embodiments, the remote computing device may include a game console, while in ot...

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Abstract

A device for suppressing ambient sounds from speech received by a microphone array is provided. One embodiment of the device comprises a microphone array, a processor, an analog-to-digital converter, and memory comprising instructions stored therein that are executable by the processor. The instructions stored in the memory are configured to receive a plurality of digital sound signals, each digital sound signal based on an analog sound signal originating at the microphone array, receive a multi-channel speaker signal, generate a monophonic approximation signal of the multi-channel speaker signal, apply a linear acoustic echo canceller to suppress a first ambient sound portion of each digital sound signal, generate a combined directionally-adaptive sound signal from a combination of each digital sound signal by a combination of time-invariant and adaptive beamforming techniques, and apply one or more nonlinear noise suppression techniques to suppress a second ambient sound portion of the combined directionally-adaptive sound signal.

Description

Background technique [0001] Various computing devices, including but not limited to interactive entertainment devices such as video game systems, can be configured to accept voice input to allow users to control system operations through voice commands. These computing devices include one or more microphones to allow the computing device to capture a user's voice during use. However, it can be difficult to distinguish user speech from ambient noise, eg, noise from speaker output, other people in the usage environment, stationary sources such as computing device fans. Also, the physical movement of the user during use can add to these difficulties. [0002] Some current solutions to such problems include instructing the user not to change position within the usage environment, or performing an action to alert the computing device of impending input. These approaches, however, may negatively impact the spontaneity and ease of use expected of speech input environments. Conten...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R1/08H04R3/00
CPCG10L21/0208H04S3/008G10L21/0272G10L2021/02166G10L2021/02085
Inventor J·弗莱克斯I·塔舍夫D·麦克凯倪旭东R·海特坎普W·郭J·塔迪夫L·兴M·巴塞夫勒格
Owner MICROSOFT TECH LICENSING LLC
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