The sound waves from someone singing are picked up by a microphone and converted to analog electric signals. This electric signal can be sent to an amplifier and then to a speaker so that many people can hear the sound. When we convert the analog signal to a digital signal ...
The Application Determines what Specifications are Important
Do you want to purchase an IP camera that does what you expect? What is the best camera for your IP Camera System? The first thing to do is set your objectives. The second thing is to look at the specifications. The specifications help you match the IP ...
The Pros and Cons of Credentials Used in Door Access Control
Door Access Control has come a long way, from the wooden lock and key used over 6,000 years ago to the latest biometric and mobile credentials. The advancement in access control has provided increased door security and safety. This article summarizes the credentials used ...
Long-Range PTZ Cameras and Counter-Drone Measures
The rise of drones as a weapon has resulted in an increased demand for effective countermeasures. Drones can be used for illegal activities, such as smuggling or spying. They can also be used to carry out attacks or disrupt critical infrastructure. Overall, drones can be a valuable tool in ...
Palm Readers for Door Entry Control
Do you want your palm read? I'm not talking about palmistry which has been around for thousands of years, but the more recent biometric palm reading that can identify a person. Interestingly, both techniques read the lines of your hand. One predicts your fortune the other opens the door. ...
IP audio paging is a system that uses an IP network to transmit audio signals to speakers. It is an efficient and reliable way to send audio. This article describes the pros and cons of IP paging systems. IP audio paging systems are the latest method of ...
