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.
The cost of sidewalk repairs varies largely by location, materials use and extent of damage. Prices may be given per square foot or by total job cost.ost Responsibility. The determination of cost responsibility for sidewalk repairs is determined by city ordinances. In some cities, the local Department of Public Works is responsible for sidewalk maintenance and repair. However, many cities defer at least part of the cost of sidewalk repair to the adjacent homeowner.