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Sound effect control method and sound effect output device for gain dynamic adjustment

A technology of dynamic adjustment and control method, which is applied in the direction of stereo system, electrical components, etc., which can solve the problems of discounting the user's sense of presence, affecting the user's sense of experience, and keeping the sound signal unchanged.

Active Publication Date: 2021-01-26
ACER INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, in the current application, although the screen can change with the user's rotation, the sound signal remains unchanged, which greatly reduces the user's sense of presence
[0004] Especially in multi-channel technology, when the user rotates, the change ratio between the multi-channels is not adjusted with the rotation angle, which greatly affects the user's experience

Method used

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  • Sound effect control method and sound effect output device for gain dynamic adjustment
  • Sound effect control method and sound effect output device for gain dynamic adjustment
  • Sound effect control method and sound effect output device for gain dynamic adjustment

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Embodiment Construction

[0067] Please refer to figure 1, which shows a schematic diagram of an audio output device 100 , a head-mounted display 200 and a computing device 300 according to an implementation. The audio output device 100 can be combined with the head-mounted display 200 to allow the user to play a virtual reality (VR) game or visit a virtual store. The display content V2 of the head-mounted display 200 and an original left channel signal eL and an original right channel signal eR of the audio output device 100 are provided by the computing device 300 . As the user rotates, the displayed content V2 will change accordingly. In this embodiment, according to the rotation of the user, the original left channel original signal eL and right channel original signal eR can be converted into a left channel update signal ZL and a right channel update signal ZR, and the left channel update The signal ZL and the right channel updating signal ZR simulate five-channel analog signals of five virtual ...

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Abstract

The invention discloses a sound effect control method for gain dynamic adjustment and a sound effect output device. The sound effect control method includes the following steps. According to a rotation angle and a binaural correlation, calculate a center channel gain, a left channel gain, a left surround channel gain, a right surround channel gain and a right channel gain, and convert a left channel gain accordingly The channel original signal and a right channel original signal are a center channel virtual signal, a left channel virtual signal, a left surround channel virtual signal, a right surround channel virtual signal and a right channel virtual signal. According to the center channel virtual signal, the left channel virtual signal, the left surround channel virtual signal, the right surround channel virtual signal and the right channel virtual signal, obtain a left channel update signal and a right channel update signal.

Description

technical field [0001] The present invention relates to a sound effect control method and a sound effect output device, and in particular to a sound effect control method and a sound effect output device with gain dynamic adjustment. Background technique [0002] With the development of interactive display technology, various interactive display devices are constantly being introduced. Taking a head-mounted display (HMD) as an example, a user wears the head-mounted display to display a virtual reality (VR) picture in front of his eyes. As the user moves or rotates, the head-mounted display can present corresponding images, making the user feel like being in a certain virtual scene. [0003] However, in the current application, although the screen can change with the rotation of the user, the sound signal remains unchanged, so that the user's sense of presence is greatly reduced. [0004] Especially in the multi-channel technology, when the user rotates, the change ratio be...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04S7/00
CPCH04S7/305H04S7/306H04S2420/01
Inventor 杜博仁张嘉仁曾凯盟
Owner ACER INC