Signalprocessingisafieldofengineeringandappliedmathematicsthatdealswithanalyzing,modifying,andsynthesizingsignalssuchassound,images,andscientificmeasurements.Itinvolvestechniquestofilter,compress,andextractinformationfromsignals.Applicationsincludeaudioprocessing,speechrecognition,imageenhancement,telecommunications,andbiomedicalsignalanalysis.Signalprocessingcanbeanalog(continuoussignals)ordigital(discretesignals),withdigitalsignalprocessing(DSP)beingwidelyusedduetotheflexibilityandpowerofmoderncomputing.KeyoperationsincludeFouriertransforms,filtering,convolution,andsampling.Advancesinmachinelearninghavefurtherexpandedsignalprocessingcapabilities.
