Digital signal processing (DSP) is the numerical manipulation of signals, usually with the intention to measure, filter, produce or compress continuous analog signals.umerical methods require a digital signal, such as those produced by an analog-to-digital converter (ADC). The processed result might be a frequency spectrum or a set of statistics. But often it is another digital signal that is converted back to analog form by a digital-to-analog converter (DAC).
1 On average, the cost to repair a sidewalk could be anywhere from $4 to as much as $10 per square foot. 2  If a higher quality finish is used, the price can reach as high as $15 per square foot. They can charge differently depending on their location as well as the experience and knowledge that they offer. 2  On average, the cost to repair a sidewalk could be anywhere from $4 to as much as $10 per square foot.
How much does it cost to pour a new sidewalk? Prisciliano Anaya, president of Anaya Concrete in Denver, says his company charges between $5 and $15 per square foot to demolish and repour a sidewalk. The cost depends on the depth of concrete, amount of metal reinforcement and size of the job, he adds. But for an average 4-by-50-foot sidewalk, it could cost as little as $1,000 or as much as $3,000. Just like buying groceries in bulk, buying a larger quantity of concrete provides a lower rate, says Tom Morelli, owner and president of Suburban Asphalt Concrete in Lynbrook, New York.