Broadcast quality monitor

Abstract

The invention discloses a broadcast quality monitor comprising a display screen. The broadcast quality monitor is characterized by comprising an equalizer, a demultiplexing module, an AES 3-to-I S module, a D/A converter module, a data sampling module, a data processing module, a dynamic audio frequency sliding column module and a display driver module, wherein the equalizer is used for equalizing and compensating the line loss of the SDI signals embedded in the digital audio signals; the demultiplexing module is used for demultiplexing and separating out a video signal and a first audio signal; the AES 3-to-I S module is used for converting the first audio signal into an I S audio signal; the D/A converter module is used for converting the I S audio signal into a simulated audio signal; the data sampling module is used for sampling the voltage of the simulated audio signal; the data processing module is used for converting a voltage value obtained by sampling into a dB value; according to the dB value, the dynamic audio frequency sliding column module is used for generating and transferring a dynamic audio frequency sliding column with corresponding length to the display driver module according to the dB value; the display driver module is used for overlapping the dynamic audio frequency sliding column on the video signal; therefore the dynamic audio frequency sliding column can be displayed on the display screen in real-time. The invention completely solves the problem of audio monitoring of SDI interfaces by one step.

Description

technical field [0001] The invention relates to the field of monitors, more specifically, a broadcast monitor. Background technique [0002] Broadcast-grade monitors are the highest quality monitors, which require very high technical specifications, and must have access to component video signals to provide the highest quality and most accurate video display. At present, broadcast-level monitors generally use SDI serial digital video interfaces, including standard-definition SD-SDI and high-definition HD-SDI, as a professional component video signal access method. [0003] The SDI interface is "Serial Digital Video Interface". SDI is a method of serial transmission of digital Y, U, and V on a coaxial cable. It is used in high-end digital products and is widely used in digital broadcasting equipment. The serial interface is an interface that sequentially transmits each bit of a data word and the corresponding data through a single channel. Due to the high data rate of the ...

AI Technical Summary

Problems solved by technology

The method is to add an external audio level display module, such as an LED indicator, which requires additional drive circuits and equipment

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