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 Exterior crack repair - $400 - $1400; 2  Interior perimeter drain / weeping tile system installation - $50 - $85 per linear foot (minimums usually apply); 3  Sump pump installation (basic submersible with liner) - $900 - $1750; and. 4  Crack stabilization - $50 - $300 per crack. Average price to fix interior cracks in a poured concrete foundation by crack injection - $350 - $525 per crack; 2  Tie-rod hole (form tie) leak repairs - $25 - $150 per hole depending upon the quantity repaired; 3  Window well drain installation - $850 - $1200 per window well;