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System and method for stereo field enhancement in two-channel audio systems

一种音频系统、双信道的技术，应用在立体声系统、双声道系统、立体声装置等方向，能够解决不理想等问题

Active Publication Date: 2015-05-13
BONGIOVI ACOUSTICS LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] However, the current static stereo width adjustment method is not ideal because different audio signals have different amounts of side signal

Method used

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  • System and method for stereo field enhancement in two-channel audio systems
  • System and method for stereo field enhancement in two-channel audio systems
  • System and method for stereo field enhancement in two-channel audio systems

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Embodiment Construction

[0023] As shown in the drawings, the present invention relates to a system and method for stereo field enhancement in a two-channel audio system.

[0024] As outlined, figure 1 Shown are the steps of at least one preferred embodiment of the present invention. In this embodiment, a dual-channel audio input signal is first divided into a low frequency signal and a higher frequency signal using a first cutoff frequency, as in 10. The generated low frequency signal includes frequencies below the first cutoff frequency. Likewise, the generated high frequency signal includes frequencies above the first cutoff frequency. In at least one embodiment, the first cut-off frequency is substantially between 20 Hz and 100 Hz. The first cutoff frequency can be further adjusted in at least one embodiment. The audio input signal is separated by using at least one electronic filter in at least one embodiment. The at least one electronic filter includes a circuit that is structured and configured...

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Abstract

The present invention provides methods and systems for digitally processing audio signals in two-channel audio systems and / or applications. In particular, the present invention includes a first filter structured to split a two-channel audio input signal into a low frequency signal and a higher frequency signal. A M / S splitter is then structured to split the higher frequency signal into a middle and a side signal. A detection module is then configured to create a detection signal from the middle signal, which is used in a compression module configured to modulate the side signal to create a gain-modulated side signal. A processing module is then structured to combine the low frequency signal, middle signal, and the gain-modulated side signal to form a final output signal.

Description

[0001] Priority claim [0002] This application is based on the provisional patent application serial number 61 / 834,063 currently pending in the U.S. Patent and Trademark Office under 35U.SC Section 119(e) and its priority is claimed. The filing date of this case is On June 12, 2013, this article incorporated it by reference. Technical field [0003] The present invention provides a method and system for digitally processing a dual-channel audio input signal to achieve stereo field enhancement. Specifically, certain embodiments of the present invention relate to digital processing of the two-channel audio input signal so as to be able to reproduce immersive studio quality sound for the listener in a two-channel audio system. Background technique [0004] Stereo sound or stereo sound is a method of sound reproduction, which produces a sense of sound directionality. This can be achieved by using two or more audio channels played through a configuration consisting of two or more spea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R5/00
CPCH04S1/002H04S7/307
Inventor 安东尼·鹏奇欧维格兰·柴尼克约瑟夫·G.·布达拉三世
Owner BONGIOVI ACOUSTICS LLC