What you hear on a daily basis has the ability to influence your subconscious mind, positively or negatively. A sound frequency can have a big impact on the state of your mind and body. Then, there ...

Humans can observe what and where something happens around them with their hearing, as long as sound frequencies lie between 20 Hz and 20 000 Hz. Researchers have now developed a new audio technique ...

The author is a broadcast contract engineer who has a unique way of measuring the carrier frequency of the AM stations in his care. Making off-air frequency measurements of AM broadcast stations can ...