公开(公告)号：US20150092965A1

公开(公告)日：2015-04-02

申请号：US14498648

申请日：2014-09-26

Applicant: Sony Computer Entertainment Inc.

Inventor： Frederick Umminger ,  Scott Wardle

IPC: H04S7/00

CPC classification number: H04S7/304 ,  H04S5/005 ,  H04S7/306

Abstract: Aspects of the present disclosure relate to techniques for processing a source audio signal in order to localize sounds. In particular, aspects of the present disclosure relate to sound localization techniques which externalize sounds for headphone audio, such as a virtual surround sound headphone system. In various implementations, room reverberations and other acoustic effects of the environment may be more accurately modeled using improved room reverberation models. For example, in some implementations, the underlying source signal may be filtered with a filter representing a room impulse response that is a combination of a stereo room impulse response and a mono room impulse response. By way of further example, in some implementations the source signal may be filtered with a combined impulse response filter that is derived from binaural recordings of simulated impulses recorded in a desired reverberant environment.

Abstract translation: 本公开的方面涉及用于处理源音频信号以便本地化声音的技术。 具体地，本公开的方面涉及对耳机音频的声音进行外部化的声音定位技术，例如虚拟环绕声耳机系统。 在各种实现中，可以使用改进的房间混响模型更准确地建模房间混响和环境的其他声学效果。 例如，在一些实现中，可以用表示作为立体声室冲击响应和单室冲激响应的组合的房间脉冲响应的滤波器对基础源信号进行滤波。 作为进一步的示例，在一些实现中，源信号可以用从被记录在期望的混响环境中的模拟脉冲的双耳记录导出的组合脉冲响应滤波器来滤波。