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.
1 The website Amherst.NY.US states that if a homeowner needs to have a sidewalk installed, the prices can range from $6 to $8 per square foot. 2  According to the website Turtlesoft.com, the actual material for a typical sidewalk can cost the contractor about $2.50 per square foot. There are other various forms of concrete, such as stamped concrete, that can bring the price up. 2  Most contractors will charge per square foot of the sidewalk. 3  On average, plan on spending anywhere from $5 to as much as $10 per square foot. 4  Sidewalks are usually blocked off into secionts.