MCCTV Security & Surveillance System Solution News From CCTUNG
How does CCTV cameras with POE horn speakers enhance security capabilities?
Posted by JiangDavid on
CCTV cameras with POE horn speakers enhance security systems by providing active deterrence through audible alerts, ensuring comprehensive surveillance coverage across strategic areas, and facilitating effective communication during emergencies. This integrated approach not only deters potential intruders but also enables rapid response to incidents, improving overall safety and security.
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- Tags: alarm system, CCTVAlarm system, Fire alarm system, home alarm system, Smart Alarm system
Speaker Horn | Define,Types&Choose
Posted by JiangDavid on
A horn speaker is a type of loudspeaker that utilizes a horn to enhance the overall efficiency of its driving element, typically a diaphragm or compression driver. The horn amplifies the sound produced by the driver by improving the coupling between the speaker driver and the air. This results in a more efficient energy transfer, leading to higher sound levels and better directionality. Currently, horn speakers are widely used in IP/ PA systems for their ability to deliver clear and powerful sound over long distances.
What is SIP Protocol? A Simple Guide 2025
Posted by JiangDavid on
SIP is a powerful and versatile protocol that underpins modern IP-based communication systems. Its ability to handle voice, video, and messaging makes it an essential technology in VoIP, conferencing, and unified communications. While it comes with certain challenges, the benefits of SIP far outweigh its drawbacks, making it a preferred choice for businesses and individuals seeking efficient and cost-effective communication solutions.
How do speakers work | A comprehensive guide 2025
Posted by JiangDavid on
How a Loudspeaker Makes Sound
Speakers make sound by using magnetism and electric current to move air, creating sound waves.
Inside a speaker, there is a strong magnet that stays in place. A coil of wire, called the voice coil, sits in a small gap near this magnet and is attached to a thin surface called the diaphragm. When an audio signal is sent to the speaker, electricity flows through the voice coil. This creates a magnetic field, turning the coil into a temporary magnet.
Since the audio signal is always changing, the voice coil’s magnetism changes too. This makes it push and pull against the fixed magnet. As a result, the voice coil moves back and forth, carrying the diaphragm with it.
The diaphragm’s movement pushes the air, making areas of high and low air pressure—these are sound waves. When these waves reach our ears, we hear sound.
The speed of the voice coil’s movement depends on the audio signal. A fast-moving coil creates high-pitched sounds, while a slow-moving coil makes low-pitched sounds.
In short, electricity creates a magnetic force, which moves the voice coil, which moves the diaphragm, which moves the air—turning electrical signals into sound.
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- Tags: AI speaker, Bluetooth Speaker, Disco StyleSpeaker, Intelligent Speaker, Showerspeaker, Smart speaker, Speaker, Waterproof Speaker
How Speakers Create Different Sounds
Posted by JiangDavid on
FAQ
1.Why do speakers have magnets?
Speakers have magnets to create a magnetic field that interacts with the electrical signal, causing the speaker cone to move and produce sound.
2.How fast does a speaker vibrate?
A speaker vibrates at a frequency matching the sound it produces, typically ranging from 20 Hz (low bass) to 20,000 Hz (high treble) for human hearing.
3.How do wireless speakers work?
Wireless speakers receive digital audio signals via Bluetooth, Wi-Fi, or RF, convert them into analog signals, amplify them, and drive the speaker diaphragm to produce sound.
4.How do ohms work with speakers?
Ohms measure a speaker’s electrical impedance, indicating resistance to current flow; lower ohms draw more power, while higher ohms require less but may reduce volume.
