Method and device for processing sound signal to realize three-dimensional sound field auditory effect
A sound signal and three-dimensional sound field technology, applied in voice analysis, stereo system, electrical components, etc., can solve the problems of small sound wave propagation range, eardrum auditory nerve stimulation, etc., and achieve the effect of improving quality, enhancing experience, and vivid three-dimensional environment
Inactive Publication Date: 2019-09-10
SHANGHAI DATACENT SCI CO LTD
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At the same time, the distance between the vibration membrane of the earphone and the eardrum is very close, the range of sound wave transmission is small and concentrated, and the stimulation of the auditory nerve of the eardrum is relatively large.
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[0040] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.
[0041] An embodiment of the present invention provides a method for processing sound signals to realize a three-dimensional sound field auditory effect, which is used for mobile terminals. Refer to figure 1 shown, including:
[0042] S11. Acquiring sound signals in multiple directions from the three-dimensional sound field;
[0043] S12. Determine the direction of the sound source relative to the mobile terminal according to the s...
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The invention discloses a method and a device for processing a sound signal to realize a three-dimensional sound field auditory effect. The method comprises the following steps: acquiring sound signals in multiple directions from a three-dimensional sound field; determining the direction of a sound source relative to the mobile terminal according to the sound signal; generating a spatial audio signal according to the sound signal and the direction of the sound source relative to the mobile terminal; wherein the spatial audio signal is used for simulating the three-dimensional sound field; determining the number of micro loudspeakers of the mobile terminal; decoding each channel of the multi-channel program according to an audio decoder; routing each sound path into an output channel according to a downmix scale factor and a transformation matrix index provided by an encoder; and the downmix sends the number to the output configuration of the corresponding sound channel according to thedetermined number of the micro loudspeakers. The experience of human hearing on a moving three-dimensional object can be improved, a more vivid three-dimensional environment is provided, and the quality of a simulated three-dimensional sound field is improved.
Description
technical field [0001] The invention relates to the technical field of audio signals, in particular to a method and device for processing audio signals to realize three-dimensional sound field auditory effects. Background technique [0002] Mobile terminals or mobile communication terminals refer to computer equipment that can be used on the move, broadly speaking, it includes mobile phones, notebooks, tablet computers, POS machines and even vehicle-mounted computers. But in most cases, it refers to mobile phones or smart phones and tablet computers with various application functions. With the development of network and technology towards more and more broadband, the mobile communication industry will move towards the real mobile information age. [0003] Earphones bring convenience to people's use of mobile terminals, but also bring harm. After a person puts on the earphones, the outer ear is almost in a state of occlusion. The sound pressure of high-volume audio enters ...
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IPC IPC(8): H04S7/00G10L19/008
CPCG10L19/008H04S7/302H04S7/305
Inventor 张军
Owner SHANGHAI DATACENT SCI CO LTD