The variable directivity microphone is very popular for studio work. What goes on inside is very clever and not widely appreciated.
As well as providing the core functionality of a computer, operating systems have the potential to be a primary issue for security and keeping hackers at bay.
NAT will operate without IPsec and vice versa, but making them work together is a fundamental challenge that needs detailed configuration and understanding.
Most microphones need a diaphragm in order to follow some aspect of the air motion that carries the sound.
When IP was first envisaged back in the 1970s, just over 4 billion unique IP addresses were allocated. However, the overwhelming international adoption of the internet with a world population of nearly 8 billion people has demonstrated there are simply not enough IP addresses to go around.
IPsec and VPN provide much improved security over untrusted networks such as the internet. However, security may need to improve within a local area network, and to achieve this we have MACsec in our arsenal of security solutions.
One of the great advantages of the internet is that it relies on open standards that promote routing of IP packets between multiple networks. But this provides many challenges when considering security. The good news is that we have solutions through IPsec (IP Security) to alleviate these concerns.
To get the best out of a microphone it is important to understand how it differs from the human ear.