The “Heyi hotel event†shocked the country. The hotel’s video surveillance recorded the entire process of a woman’s atrocity. However, even in front of the real surveillance screen, there are still many netizens shouting “Do not believe†and anticipating the anti turn.
Now let's imagine. If you and the hotel’s cameras have integrated audio systems, if you have audio systems in the hotel’s security system, then under the double evidence of screen and sound, the questioning voice will be less, and whether we are closer to the truth or not. ?
Audio monitoring is very promising in smart security
Audio monitoring is an important part of the smart security construction system. It is a comprehensive system with strong prevention capabilities. It is intuitive, accurate, timely, and informative. It is an outstanding feature.
For integrated monitoring of audio and video, the camera is equivalent to the eye, and the pickup is equivalent to the ear. The images seen by the eyes and the sounds heard by the ears are transmitted to the storage server through the nervous system such as optical fiber and network to form a complete audio and video surveillance system, providing high-quality and complete basic data for smart security or smart cities.
Traditional video surveillance systems have no sound. Like early silent movies, people can only see silent images. However, many smart security systems now require increased audio collection. For example, in areas such as safe cities, public security law cases, financial institutions, public transportation, education invigilation, administrative services, law enforcement and evidence collection, more and more quality projects require high-resolution, High-fidelity audio and video synchronization monitoring system has highlighted the importance of audio monitoring in high-quality security projects, and has become a new bright spot for safe cities and smart government affairs.
Audio monitoring system and its role <br> <br> a complete audio monitoring system includes voice pickup and noise reduction equipment, network audio intercom systems, intelligent audio analysis system.
Pickup: The pickup is the core of the audio monitoring system. It is mainly used to collect the sound of the scene through the vibration of the sound. Pickups are generally classified into digital pickups and analog pickups. Digital pickups are sound sensing devices that convert analog audio signals into digital signals and perform corresponding digital signal processing through a digital signal processing system. The analog pickups only use the general analog circuit to amplify the sound collected by the microphone head.
Network recording intercom system: It mainly includes remote recording system and intercom system. Once the sound is collected, the recording function is automatically activated, and the real-time monitoring function is realized mainly through a voice card and a speaker.
Audio Intelligence Analysis System: Audio Intelligence Analysis is similar to intelligent analysis in video surveillance systems. Through the collection and comparison of voiceprints, the specific characteristics of the voice are analyzed, and the application scenarios at the time can be analyzed.
Intelligent audio system can do what <br> <br> audio monitoring after years of development, the technology is maturing.
Through the identification of voiceprints can identify the identity of individuals. The generation of human language is a complex physiological and physical process between the body's language center and the vocal organ. The vocal organs (tongues, teeth, throat, lungs, and nasal cavities) used by people in speech vary widely in size and shape, so each Individual voiceprint patterns are unique, with both relative stability and some variation. However, in spite of this, since each person's vocal organs are not the same, it is generally possible to distinguish different people's voices or determine whether they are the same person's voice through an audio system.
Through the audio monitoring scene analysis to determine the abnormal behavior under the scene. This technique is based on the characteristics of various types of abnormal sounds in the time domain and frequency domain, combined with pattern classification methods to alert abnormal events.
In fact, some manufacturers' technology can now be used to identify the speaker's emotions, the environment they live in, and other issues through the recognition of sounds.
Promotion difficulty audio monitoring <br> <br> said before, traditional monitoring systems rarely have a collection of audio systems. Only in the characteristic project, according to the project demand, will add the audio system in the original monitoring system. The following aspects restrict the application of audio monitoring in the security industry.
1, the cost problem. Whether it is building a complete audio system or integrating audio products in the original monitoring system or alarm system, it will increase the cost, which has become an important reason for the promotion of audio monitoring. At the same time, the audio system is not indispensable in some industries such as elimination*, banking, etc. Therefore, considering the issue of cost, the audio system can be eliminated.
2, technical difficulties. It is not difficult to collect audio systems in the original security system. Basic technical difficulties can be solved. However, there are some special industries that have very high audio requirements. In the open and noisy environment, the audio system is required to have strong anti-interference ability and strong noise removal technology. In a particularly quiet environment, it is required to hear very subtle sounds. For example, the supervision of the interrogation and firearms room, the slightest sound can be collected at the first time. The sensitivity of the pickup must be very high, and the original sound must be achieved. effect. In short, in different areas of the environment, the requirements for audio monitoring equipment are also very different. This is also an important reason why audio monitoring technology standards have not been uniformly standardized.
3, privacy issues. Audio monitoring provides convenience and security, and it may also bring privacy issues. Some people worry that voiceprints can identify speakers without their consent and violate their privacy and freedom of speech. Once these technologies are mature, it will certainly generate many privacy issues, which is very easy to understand. The question of how to obtain voiceprints and when to obtain voiceprints is a very vague question.
With the advancement of the safe city and the acceleration of the anti-terrorism process, the requirements for the construction of the security system are also increasing. People have begun to pay attention to audio monitoring, and more and more industries and scenes are increasingly demanding video and audio synchronization monitoring. No matter whether it is a public security inspection agency, or an airport, railway, bank or other key unit, more and more high-quality security projects urgently require clear and realistic video and audio synchronization monitoring systems.
Now let's imagine. If you and the hotel’s cameras have integrated audio systems, if you have audio systems in the hotel’s security system, then under the double evidence of screen and sound, the questioning voice will be less, and whether we are closer to the truth or not. ?
Audio monitoring is very promising in smart security
Audio monitoring is an important part of the smart security construction system. It is a comprehensive system with strong prevention capabilities. It is intuitive, accurate, timely, and informative. It is an outstanding feature.
For integrated monitoring of audio and video, the camera is equivalent to the eye, and the pickup is equivalent to the ear. The images seen by the eyes and the sounds heard by the ears are transmitted to the storage server through the nervous system such as optical fiber and network to form a complete audio and video surveillance system, providing high-quality and complete basic data for smart security or smart cities.
Traditional video surveillance systems have no sound. Like early silent movies, people can only see silent images. However, many smart security systems now require increased audio collection. For example, in areas such as safe cities, public security law cases, financial institutions, public transportation, education invigilation, administrative services, law enforcement and evidence collection, more and more quality projects require high-resolution, High-fidelity audio and video synchronization monitoring system has highlighted the importance of audio monitoring in high-quality security projects, and has become a new bright spot for safe cities and smart government affairs.
Audio monitoring system and its role <br> <br> a complete audio monitoring system includes voice pickup and noise reduction equipment, network audio intercom systems, intelligent audio analysis system.
Pickup: The pickup is the core of the audio monitoring system. It is mainly used to collect the sound of the scene through the vibration of the sound. Pickups are generally classified into digital pickups and analog pickups. Digital pickups are sound sensing devices that convert analog audio signals into digital signals and perform corresponding digital signal processing through a digital signal processing system. The analog pickups only use the general analog circuit to amplify the sound collected by the microphone head.
Network recording intercom system: It mainly includes remote recording system and intercom system. Once the sound is collected, the recording function is automatically activated, and the real-time monitoring function is realized mainly through a voice card and a speaker.
Audio Intelligence Analysis System: Audio Intelligence Analysis is similar to intelligent analysis in video surveillance systems. Through the collection and comparison of voiceprints, the specific characteristics of the voice are analyzed, and the application scenarios at the time can be analyzed.
Intelligent audio system can do what <br> <br> audio monitoring after years of development, the technology is maturing.
Through the identification of voiceprints can identify the identity of individuals. The generation of human language is a complex physiological and physical process between the body's language center and the vocal organ. The vocal organs (tongues, teeth, throat, lungs, and nasal cavities) used by people in speech vary widely in size and shape, so each Individual voiceprint patterns are unique, with both relative stability and some variation. However, in spite of this, since each person's vocal organs are not the same, it is generally possible to distinguish different people's voices or determine whether they are the same person's voice through an audio system.
Through the audio monitoring scene analysis to determine the abnormal behavior under the scene. This technique is based on the characteristics of various types of abnormal sounds in the time domain and frequency domain, combined with pattern classification methods to alert abnormal events.
In fact, some manufacturers' technology can now be used to identify the speaker's emotions, the environment they live in, and other issues through the recognition of sounds.
Promotion difficulty audio monitoring <br> <br> said before, traditional monitoring systems rarely have a collection of audio systems. Only in the characteristic project, according to the project demand, will add the audio system in the original monitoring system. The following aspects restrict the application of audio monitoring in the security industry.
1, the cost problem. Whether it is building a complete audio system or integrating audio products in the original monitoring system or alarm system, it will increase the cost, which has become an important reason for the promotion of audio monitoring. At the same time, the audio system is not indispensable in some industries such as elimination*, banking, etc. Therefore, considering the issue of cost, the audio system can be eliminated.
2, technical difficulties. It is not difficult to collect audio systems in the original security system. Basic technical difficulties can be solved. However, there are some special industries that have very high audio requirements. In the open and noisy environment, the audio system is required to have strong anti-interference ability and strong noise removal technology. In a particularly quiet environment, it is required to hear very subtle sounds. For example, the supervision of the interrogation and firearms room, the slightest sound can be collected at the first time. The sensitivity of the pickup must be very high, and the original sound must be achieved. effect. In short, in different areas of the environment, the requirements for audio monitoring equipment are also very different. This is also an important reason why audio monitoring technology standards have not been uniformly standardized.
3, privacy issues. Audio monitoring provides convenience and security, and it may also bring privacy issues. Some people worry that voiceprints can identify speakers without their consent and violate their privacy and freedom of speech. Once these technologies are mature, it will certainly generate many privacy issues, which is very easy to understand. The question of how to obtain voiceprints and when to obtain voiceprints is a very vague question.
With the advancement of the safe city and the acceleration of the anti-terrorism process, the requirements for the construction of the security system are also increasing. People have begun to pay attention to audio monitoring, and more and more industries and scenes are increasingly demanding video and audio synchronization monitoring. No matter whether it is a public security inspection agency, or an airport, railway, bank or other key unit, more and more high-quality security projects urgently require clear and realistic video and audio synchronization monitoring systems.
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