Method of cable television front end multicenter acoustic frequency gang adjustment and gang adjustment equalizer

A cable television, multi-channel technology, applied in the field of multi-channel audio control, can solve the problems of unbalanced audio on the same channel and unbalanced channels, and achieve the effect of avoiding the phenomenon of unbalanced sound.

Inactive Publication Date: 2010-10-27
韩明智
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the problem of unbalanced audio on the same channel and unbalanced channels existing in the existing cable TV, this application provides an audio system adjustment method and an audio equalizer used during the system adjustment

Method used

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  • Method of cable television front end multicenter acoustic frequency gang adjustment and gang adjustment equalizer
  • Method of cable television front end multicenter acoustic frequency gang adjustment and gang adjustment equalizer
  • Method of cable television front end multicenter acoustic frequency gang adjustment and gang adjustment equalizer

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Embodiment Construction

[0017] 1. When implementing this application, firstly follow the figure 1 or figure 2 The shown circuit makes a system-tuned equalizer, and the circuit connection system and main component parameters of the system-tuned equalizer are described in the content of the invention and attached figure 1 , attached figure 2 has already been described in detail, and will not be described in detail here. figure 1 and figure 2 Diodes D1-D5 shown in can use 1N5404 or 1N4007 type diodes.

[0018] This tuned equalizer is sold as a separate product.

[0019] Two, carry out according to the step of the adjustment method described in the summary of the invention again. The steps will not be described in detail.

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PUM

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Abstract

The invention discloses an audio tracking method and a tracking equalizer for a cable television with a plurality of channels at the front end; the tracking equalizer is respectively added between the audio end of a satellite receiver at the front end of the cable television and each modulator, the audio level output by the each modulator is led to be congruous by debugging, thereby realizing thetracking balance among the channels of a television receiving terminal of the user. The tracking equalizer comprises an audio magnifying circuit composed by a TDA1013B integrated circuit and a subpressure follow current circuit, and the subpressure of the subpressure follow current circuit plays the role of follow current to the positive pressure, so as to realize the average pressure control of the peak value. The invention realizes the balance of accompanying sound of all channels of the cable television, the phenomenon of unbalanced sound is avoided when the spectator switches the TV channel, thereby needing not to regulate the volume when the channel is switched.

Description

technical field [0001] The present application relates to the technology of cable TV, and in particular to the technology of multi-channel audio system adjustment. Background technique [0002] At present, the equalization of the sound level between the channels of the cable TV front-end depends on the weekly routine maintenance and debugging of the cable TV personnel and the inspection and debugging in daily work. Due to the difference or mismatch between the TV program production and the transmitted channel equipment, the sound level of adjacent channels is unbalanced at the final receiving end. Because it is related to the matching of program production and transmission equipment, only routine maintenance and inspection and debugging cannot fundamentally solve the problem of sound balance. Contents of the invention [0003] In order to overcome the problem of unbalanced audio on the same channel and unbalanced channels existing in the existing cable TV, this applicatio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/60H04N7/10
Inventor 韩明智
Owner 韩明智
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