If you have poor tone quality by using graphic equalizer, a DSP tool, you can rectify the problem. Similarly, DSP tools like Downward Expander, Delay, Compressor, and Automatic Mixer can rectify problems like unwanted noise, frequency response problems, sound source too loud, and feedback, respectively.
What DSP Can’t Do Adding DSP to your system isn’t an alternative for subsequent conventional sound support rules. For instance, audio processing will not prevent echo. DSP has no effect once sound energy is released by the loudspeaker. The problem will only become worse if you raise the level of the sound system.