Technology / Home Audio / Weighting: When laboratory measurements are taken of audio gear, the literal, 'true' figures obtained often do not reflect the anomalies introduced by human perception. In these cases, the measurements obtained may be mathematically modified, or 'weighted' to take into account the peculiarities of human hearing. A common example is 'A-weighting', a curve applied to sound pressure levels to more accurately reflect our loudness perception. Other types of weighting compensate for the ear's frequency response, distortion tolerance etc.
Business / Taxes / Weighted Stock Index: In weighted stock indexes, price changes in some stocks have a much greater impact than price changes in others in computing the direction of the overall index. By contrast, in an unweighted index, pr MORE
Business / Taxes / Standard and Poorâ€™s 500 Index (S and P 500): The benchmark Standard & Poor’s 500 Index, widely referred to as the S&P 500, tracks the performance of 500 widely held large-cap US stocks in the industrial, transportation, utility, and financial MORE