I am very curious if there is an arduino project out there that can enhance or filter the bad quality of a speaker. I am also wondering if there is a code for amplifying the sound too.
Zack_Johnston:
I am very curious if there is an arduino project out there that can enhance or filter the bad quality of a speaker. I am also wondering if there is a code for amplifying the sound too.
That depends on where the source of the 'bad quality' (distortion?) is from, the electrical audio signal or the quality of the speaker itself. Amplifying sound is a job for an audio amplifier not software.
Lefty
Lets assume that the source of the 'bad quality' is from the electrical audio signal. Thank you for answering my question about the audio amplifier...I am new to electronic audio projects. 
So is there any software to fix the bad quality from the electrical signal?? Thanks! 