Professional-grade networked audio and video processing equipment and processing method for large-scale venues

Abstract

Disclosed in the invention is a large-scale professional-class networked audio-video processing device. The processing device is characterized in that the device comprises an audio processing device, a character superimposition processor, a digital / analog converter, an audio-video clock synchronization circuit, an audio-video compression card, and an audio-video backup device, wherein the above-mentioned components are successively connected. In addition, the processing device also includes a video processing device and a communication unit; the video processing device is connected with the character superimposition processor; and the communication unit is connected with the audio-video compression card. Besides, the invention also discloses a processing method utilizing the device to carry out processing on networked audio-video data. According to the invention, the processing device that has a standard audio input interface and supports various audio input modes has functions of sound effect balancing, volume adjusting, dynamic range controlling, direct current filtering, and deemphasis and the like. And the system has the automatic frequency detection function; and a sampling frequency of audio signal inputting can be detected automatically and a filter coefficient of a corresponding frequency band can be automatically loaded.

Description

Technical field [0001] The invention belongs to the field of audio and video production and broadcast equipment in the broadcasting and television industry, and specifically relates to a professional-level networked audio and video processing equipment for large venues, and a method for processing audio and video data using the equipment. Background technique [0002] The emergence of digital technology in the 19th century had a huge impact on people's work and life. In this digital era of rapid technological development, digital audio technology can be regarded as one of the most widely used digital technologies in digital signal processing. The main advantage of digital audio technology is that it can improve the quality of the audio signal, enhance the anti-interference ability of the signal, and facilitate the storage, transmission and processing of the signal. [0003] However, the existing audio processing device does not automatically detect the sampling frequency of the inp...

AI Technical Summary

Problems solved by technology

[0003] However, existing audio processing devices do not automatically detect the sampling frequency of the input audio signal and automatically load the filter coefficients of the corresponding frequency band and support multiple audio input formats, and have sound equalization, volume adjustment, dynamic range control, and DC filtering. , de-emphasis and a series of functions; at the same time, the image data acquisition frame rate and image resolution parameters of the existing video processing device cannot be set in real time according to the customer's opinion

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