Electronic tube amplifier for producing virtual surround sound
A stereophonic and electronic tube technology, applied in stereophonic systems, quasi-stereophonic systems, stereophonic circuit arrangements, etc., can solve the problems of cumbersome operation and control software programming, complex chip manufacturing process, and high production costs, and achieve low production costs and simple structure , The effect of simple production process
Inactive Publication Date: 2014-01-22
蔡继承
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- Application Information
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Problems solved by technology
The chip manufacturing process is complex, and the operation and control software programming is cumbersome, resulting in high production costs and expensive prices
Method used
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Embodiment Construction
[0022] Embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.
[0023] see figure 1 and figure 2 As shown, the present invention is composed of the virtual surround sound left channel signal 9 generated by the electron tube G1 and the additional circuit, and the virtual surround sound right channel signal 10 generated by the electron tube G2 and the additional circuit. G1 is a vacuum tube seven-pole tube that generates a virtual surround sound left channel signal, and G2 is a vacuum tube seven-pole tube that generates a virtual surround sound right channel signal.
[0024] The electronic tube produces a virtual surround sound amplifier, including a two-channel stereo left channel signal 1 and a two-channel stereo right channel signal 2, as well as a power supply 11 and a second power supply 12, and an output terminal of the two-channel stereo left channel signal 1 is connected Left and right channel signal mixed...
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The invention discloses an electronic tube amplifier for producing virtual surround sound. An output end for left sound channel signals about two-channel stereo sound is connected with a hybrid amplifying circuit for left and right sound channel signals, and another output end for the left sound channel signals about the two-channel stereo sound is sequentially connected with a left sound channel signal resistance and capacitance phase-shift circuit, a left sound channel signal variable resistance attenuation circuit and a hybrid amplifying circuit for right and left sound channel signals. An output end for right sound channel signals about the two-channel stereo sound is connected with the hybrid amplifying circuit for the right and left sound channel signals, and another output end for the right sound channel signals about the two-channel stereo sound is sequentially connected with a right sound channel signal resistance and capacitance phase-shift circuit, a right sound channel signal variable resistance attenuation circuit and the hybrid amplifying circuit for the left and right sound channel signals. Left sound channel signals about virtual surround sound are output by the hybrid amplifying circuit for the left and right sound channel signals, and right sound channel signals about the virtual surround sound are output by the hybrid amplifying circuit for the right and left sound channel signals. The virtual surround sound which is produced by the electronic tube amplifier can be as good as virtual surround sound produced by a chip adopting the existing digital processing technology, but the electronic tube amplifier also has the advantages of simple structure, simple production technology, low production cost and convenience in household use and popularization.
Description
technical field [0001] The invention relates to a device and a method for generating virtual surround sound by an electronic tube. Background technique [0002] The so-called surround sound usually refers to a playback method in which the sound seems to surround the listener compared with the two-channel stereo. The playback sound field generated by this method, in addition to retaining the sense of direction of the sound source of the original signal, is also accompanied by the sound effect of creating a sense of surround and expansion. When listening to surround sound, the listener can distinguish the sound from the front, rear, left, and right, that is, the surround sound can expand the spatial sound source from the line to the entire horizontal plane and even the vertical plane. And feel that the entire space around you is surrounded by the spatial sound field generated by these sound sources, thus creating a sound effect like being in a karaoke hall or movie theater. ...
Claims
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IPC IPC(8): H04R5/04H04S5/02
Inventor 蔡继承
Owner 蔡继承