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虚拟环绕声技术系采用两个声道还原多声道环绕声,营造出能媲美多声道杜比定向逻辑及杜比数码(AC-3)环绕声效的环绕声场。人们利用双声道音响系统甚至大屏幕电视机的双声道伴音系统,同样可以享受到多声道环绕声的临场音效。目前,虚拟环绕声分为虚拟杜比环绕声和虚拟杜比数码环绕声两大系统。其中,虚拟杜比环绕声系统芯片有PS9999、QS7799、QSTT85等,这些芯片通常内带杜比定向逻辑解码功能,主要用于VCD、超级VCD及DVD输出的带有杜比定向逻辑编码的双声道音频信号的解码及虚拟处理,采
The Virtual Surround technology uses two channels to restore multi-channel surround sound, creating a surround sound field that is comparable to multi-channel Dolby Pro Logic and Dolby Digital (AC-3) surround sound. People can enjoy the live sound of multi-channel surround sound by using the two-channel sound system of a two-channel sound system or even a large-screen television. Currently, the virtual surround sound is divided into virtual Dolby Surround and virtual Dolby Digital surround sound two systems. Among them, the virtual Dolby Surround system chip PS9999, QS7799, QSTT85, etc., these chips usually with Dolby Pro Logic decoding, mainly for VCD, Super VCD and DVD output with Dolby Pro Logic encoding dual sound Road audio signal decoding and virtual processing, mining