3i.Explore strategies to solve application problem (Requirement/StrategyReview)ii.Propose and evaluate design options (Preliminary Design Review)iii.Design, test and build subsystems (Design Review)iv.Integrate subsystems into working system (Critical Design Review)v.Test and evaluate system performance (Project Readiness Review)3.Project OverviewAs an automatic volume controller for an audio amplifier system, the objective is todesign a controller that automatically adjusts the gain of the audio amplifier system soas to give a constant audio output at the preset level for a dynamically changing inputaudio signal. Since the loudness of the audio volume is eventually perceived by thereasonably adaptive human ear, very tight or fast control of the audio volume is notthe primary requirement and hence controller designs using fairly simple controlalgorithms are applicable.The project is to be designed and implemented as a digital control system (a discrete-time, sampled-data system) based on the use of data acquisition hardware modulesand the PC-based LabVIEW graphical programming environment. The VCA, PA andVU Meter subsystems of the audio amplifier system are to be designed, fabricated,integrated and tested. Data acquisition is used as the basis for the design, development