Cloud technology-based voice recognition and intelligent black broadcast identification method

Abstract

The invention discloses a cloud technology-based voice recognition and intelligent black broadcast identification method, which comprises the following implementation steps: 1, demodulating a signal which is artificially identified as black broadcast or a previously stored signal, and sending the demodulated signal to a cloud for voice recognition to obtain a large number of black broadcast audio-to-text data samples; 2, carrying out unsupervised learning and training on the known black broadcast character data sample by adopting DNN, and extracting black broadcast characteristic keywords to form a keyword library; 3, sending the demodulated broadcast audio signal to a cloud for speech recognition to obtain broadcast audio-to-text content; and 4, carrying out similarity matching on the text content and the keyword library to obtain a similarity matching result. The broadcast signal is subjected to voice recognition through the cloud technology, operation is easy and convenient, and extra cost is not needed; and the DNN is adopted to carry out unsupervised learning and training on the black broadcast characteristic keywords, so that the recognition efficiency and the recognition accuracy are improved.

Description

technical field [0001] The invention belongs to the field of cloud technology identification of black broadcasts, in particular to a cloud technology-based speech recognition and intelligent identification method for "black broadcasts". Background technique [0002] The content of the "Black Broadcasting" program is mainly related to sexual drugs, the language is vulgar and deceptive, it has brought huge property losses to the general public, disrupted the normal broadcasting order, and destroyed the harmony and stability of the society. Unauthorized use of dedicated radio frequencies seriously endangers aviation flight and railway operation safety, and also causes great physical harm to residents near the transmitter. According to the website of the Ministry of Industry and Information Technology, a total of 3,054 cases of "black broadcasting" were investigated and dealt with throughout the year, and the trend is on the rise. Because the broadcast time of "black broadcasti...

AI Technical Summary

Problems solved by technology

However, the method is complicated, the identification device is expensive, and the monitoring database of this method requires prior knowledge of specific broadcasting, which requires a certain amount of human work. Due to the changeable content and various types, it increases the difficulty of storing the knowledge base.

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