公开(公告)号：US20150295662A1

公开(公告)日：2015-10-15

申请号：US14249870

申请日：2014-04-10

Applicant: GOOGLE INC.

Inventor： Willem Bastiaan KLEIJN ,  Richard C. HENDRIKS

IPC: H04B15/00

CPC classification number: H04B15/00 ,  G10L21/0364

Abstract: Provided are methods and systems for improving the intelligibility of speech in a noisy environment. A communication model is developed that includes noise inherent in the message production and message interpretation processes, and considers that these noises have fixed signal-to-noise ratios. The communication model forms the basis of an algorithm designed to optimize the intelligibility of speech in a noisy environment. The intelligibility optimization algorithm only does something (e.g., manipulates the audio signal) when needed, and thus if no noise is present the algorithm does not alter or otherwise interfere with the audio signals, thereby preventing any speech distortion. The algorithm is also very fast and efficient in comparison to most existing approaches for speech intelligibility enhancement, and therefore the algorithm lends itself to easy implementation in an appropriate device (e.g., cellular phone or smartphone).

Abstract translation: 提供了在嘈杂环境中提高语音清晰度的方法和系统。 开发了包括消息生成和消息解释过程中固有的噪声的通信模型，并认为这些噪声具有固定的信噪比。 通信模型构成了一种旨在优化语音在嘈杂环境中的可懂度的算法的基础。 可理解性优化算法在需要时仅执行某些操作（例如，操纵音频信号），因此如果不存在噪声，算法不会改变或以其他方式干扰音频信号，从而防止任何语音失真。 与用于语音可懂度增强的大多数现有方法相比，该算法也非常快速和有效，因此该算法本身在适当的设备（例如，蜂窝电话或智能电话）中容易实现。