Acquisition Cost. 1. The total cost for a firm to buy an asset. The acquisition cost includes all legal fees, closing costs, or other increases. Likewise, it makes allowances for discounts. Importantly, however, the acquisition cost does not include any applicable sales tax. 2.
microphone / ËmaÉªkrÉËfÉÊn / n. a device used in sound-reproduction systems for converting sound into electrical energy, usually by means of a ribbon or diaphragm set into motion by the sound waves. The vibrations are converted into the equivalent audio-frequency electric currents '
Microphone development as we know it today was distilled from telephone technology, whose roots go back to the mid 1800s. The word âmicrophoneâ was ï¬rst coined by Wheatstone around 1827 and was used to describe a purely acoustic device, like a stethoscope, which he had developed to amplify weak sounds. The word is Greek in origin, with âmicroâ meaning small and âphonâ meaning sound. It was not applied to telephone devices in general, which were instead called âtransmitters,â a practice continued by Western Electric almost until it ceased professional microphone production in the 1940s.