System and method for defining program boundary and advertisement boundary based on audio signal waveforms

Abstract

The invention discloses a system and method for defining a program boundary and an advertisement boundary based on audio signal waveforms and relates to the field of audio / video editing. The system comprises an audio signal input module, an audio signal waveform monitoring module, an audio signal judgment module, an audio signal waveform pre-judgment module, an audio signal waveform screening module, an audio signal waveform overlapping module, an audio / video segment preprocessing module, an external audio insertion module, an external subtitle insertion module and a multi-window audio / video playing module. According to the system and the method, waveform monitoring is carried out on audio signals in videos; noises inconsistent with demands and invalid audios are automatically filtered; pre-judgment is carried out on preserved waveforms; former and latter waveforms are compared; and if an overlapping ratio is greatly changed, it is judged that a program is changed. The system is equipped with a recycle bin for temporarily storing the noises and the invalid audios and the temporarily stored noises and invalid audios are convenient for check and analysis in a later period, so usefulinformation is prevented from being deleted by misoperation of the system.

Description

technical field [0001] The invention relates to the field of audio and video editing, in particular to a system and method for defining program boundaries and advertisement boundaries based on audio signal waveforms. Background technique: [0002] In the live broadcast of sports events or other live TV broadcasts, some memorable live broadcasts need to be recorded, but because there will be a lot of noise in the live broadcast process, and there will be many boring advertisements added, which will cause great damage to the later viewing. impact, and will also increase the occupied space of the recorded video data, so in order to obtain a pure recorded video, the present invention automatically filters boring advertisements and loud noises based on the judgment and monitoring of the audio signal waveform in the video, reducing Small videos take up space and increase collectability. [0003] For example, application number CN01808461.3 discloses a system and method used in a ...

AI Technical Summary

Problems solved by technology

The method includes: setting an electrode input port and an electrode output port in the music player; storing audio signals, waveform signals or pulse signals in the music player; The human body bioelectric signal is sent to the music player; after the music player receives the massage trigger command, it selects the saved audio signal, waveform signal or pulse signal, and uses the collected human body bioelectric signal to adjust the selected signal. The adjusted signal is converted into an analog signal, and then output to the massage electrode from the electrode output port; massage electric waves are output to the user through the massage electrode. This kind of device does not disclose how to use audio waveforms to define the technology of program boundaries and commercial advertisement boundaries Program

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