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高保真电视伴音与高清晰度电视已成为当今高质量电视重现技术的两大课题.随着立体声电视的开发,电视接收机的伴音信号处理技术的改进也日益受到重视.这不仅表现在低频部分采用高保真功放电路及改进声结构的设计,更重要的是对整个伴音调频信号处理系统——从调谐器到伴音鉴频器——的研究及发展.
High-fidelity television sound and high-definition television have become the two major topics of today’s high-quality television reproduction technology.With the development of stereo television, the improvement of the audio signal processing technology of the television receiver has also been paid more attention, not only in the low frequency Part of the use of high-fidelity amplifier circuit and improve the sound structure design, more importantly, the entire audio FM signal processing system - from the tuner to audio frequency reference - research and development.