Method for processing head-related impulse response data set

A technology of impulse response and processing method, which is applied in the field of computer science and can solve problems such as large reconstruction error

Active Publication Date: 2015-04-08
DALIAN UNIV OF TECH
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Problems solved by technology

[0005] An embodiment of the present invention provides a head-related impulse response data set processing method to overcome the technical problem of large HRIR reconstruction errors in the prior art

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  • Method for processing head-related impulse response data set
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  • Method for processing head-related impulse response data set

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Embodiment Construction

[0050] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0051] figure 2 It is a flow chart of the head-related impulse response data set processing method of the present invention, such as figure 2 As shown, the method of this embodiment may include:

[0052] Step 101, the processor groups the head-related impulse response HRIR data set according to elevation angle and / or horizontal angle;

[0053...

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Abstract

The embodiment of the invention provides a method for processing a head-related impulse response data set. The method comprises the following steps: a processor groups the head-related impulse response (HRIR) data set according to an angle of elevation and / or a horizontal angle; the processor selects the HRIR sample point with a minimum reconstruction error value in the grouped HRIR data set as a high-dimensional HRIR sample point through locally linear embedding (LLE); the processor reduces the dimension of the HRIR sample point to a low-dimensional space to obtain low-dimension HRIR sample points; the processor adopts sectional straight line fitting to select characteristic HRIR sample points in the low-dimension HRIR sample points; and the processor combines the characteristic HRIR sample points into a three-dimensional matrix according to an angle-of-elevation sequence and / or a horizontal angle sequence. The embodiment of the invention solves the problem of excessive errors of a characteristic HRIR selection method.

Description

technical field [0001] Embodiments of the present invention relate to the field of computer science, and in particular to a method for processing head-related impulse response datasets. Background technique [0002] Human hearing can not only perceive the pitch, intensity, and color of sound, but also distinguish the direction and distance of the sound source. In order to enable the audience who are not present to obtain a realistic "sense of presence", people have invented three-dimensional audio technology. Three-dimensional audio technology can truly reproduce the sound information of the original sound field, so that the listener can have an "immersive" listening experience. Three-dimensional audio can be realized through "binaural sound" technology, that is, head-related transfer function (Head Related Transfer function, hereinafter referred to as: HRTF) is used to filter the single-channel sound source signal, and the obtained sound with a sense of direction is then u...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/30G06K9/46
CPCG06F2218/08G06F18/2321
Inventor 陈喆殷福亮周文颖
Owner DALIAN UNIV OF TECH
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