Anyone can download some free audio recording software from the web. And $30 can get you a USB mic. Swipe an instrumental track off of YouTube and... well... results will vary. Redlight Records has expert intel and expert gear. Results are always 100%
The first practical sound recording and reproduction device was the mechanical phonograph cylinder, invented by Thomas Edison in 1877 and patented in 1878.
Commercially introduced in 1839, the metal-based daguerreotype process soon had some competition from the paper-based calotype negative and salt print processes invented by William Henry Fox Talbot.
Charles Ginsburg led an Ampex research team to develop the first practical video tape recorder. In 1951 the first video tape recorder captured television images by converting the camera's electrical impulses and saving it onto magnetic video tape.
The pros and cons. Mostly cons.
Brain implants, often referred to as neural implants, are technological devices that connect directly to a biological subject's brain & usually placed on the surface of the brain, or attached to the brain's cortex. A common purpose of modern brain implants and the focus of much current research is establishing a biomedical prosthesis circumventing areas in the brain that have become dysfunctional after a stroke or other head injuries. This includes sensory substitution, e.g., in vision.
Brain implants electrically stimulate, block or record (or both record and stimulate simultaneously) signals from single neurons or groups of neurons (biological neural networks) in the brain. The blocking technique is called intra-abdominal vagal blocking. This can only be done where the functional associations of these neurons are approximately known. Because of the complexity of neural processing and the lack of access to action potential related signals using neuroimaging techniques, the application of brain implants has been seriously limited until recent advances in neurophysiology and computer processing power.
