Project Overview:

DSP Controlled Parametric EQ is a system that filters audio signals. The system can pass low, high and mid bandwidths of signals. The operation utilizes a control unit that allows the user to choose the gain, roll-off factor and center frequency of the filters. The major component of the system is the DSP, it is programmed to process the input signal. The signals are then processed by the amplifiers to be amplified to voltage levels appropriate for driving headphones. 

The DSP Parametric Equalizer looks to serve a niche market of consumer audio electronics that are typically very expensive and costly, both to purchase and operate.  This project looks to introduce a quality product at a reasonable cost to the user by using simple, non-proprietary interfaces in order to make the system accessible for audio enthusiasts.  

Three band EQ’s are a typical EQ found on many quality audio interfaces.  These interfaces are typically expensive or require expensive peripherals in order to operate fully.  Along with this problem, EQ’s are sometimes found integrated into large and bulky systems, such as a receiver that may be found in a home theater.  The DSP Parametric EQ will be a small and relatively light system that can be used on a desktop surface.