Problem Statement:

• There are not many products that can provide a lot utility and control for EQ for consumer devices.

• Other digital systems are more expensive and offer less control

• Digital equalizers need to be opened and need to be tweaked in the software

• Other products have a complex user interface which can be too overwhelming for users who are beginning in music production

Objectives:

The DSP Parametric Equalizer aims to provide users a simple, but intuitive way to control their audio the way they like. The array of potentiometers can be used to modify the frequency response of music, while the LCD display shows what is being changed. While the device is intended to be used with in-ear monitors or headphones with the ¼ inch jack, stereo RCA outs on the back can be used to pass the signal to an external amplifier of the user's choice. Any user who would want more control for casual listening, or even beginners in music production would find utility in this because it provides an appropriate amount of control such low pass filters and high pass filters.

Assumptions:

• The user of the device only needs to know how to plug in the power cable and the audio jack.

• The device accepts 120V 60Hz AC.

• User has some understanding of desirable audio filtering schemes/techniques

Constraints:

• This device is designed to be placed on a desk. It is constrained by its size and cannot be too big where it is inconvenient to use nor too small where heat is an issue.

• Physical memory in the DSP are limited to lengths of 28-bits (leading to lower precision filter coefficients)

Dependencies:

• Device required 120V AC at all times during operation

• Device requires an audio input source in order to generate an output

• Optimal Device operation will require the user to have an understanding of audio filtering techniques

Requirements:

• The DSP Parametric Equalizer provides a way for users to unlock more control of music or audio from devices using a 3.5mm jack.

• It can change the frequency response of the input signal according to the user’s choice, i.e. more low-end or cutting out the highs.

• User can view the values as soon as they are chosen on the LCD

• This device is intended to be used on top of a desk and will operate best when connected to in-ear monitors or headphones.