Systems and methods for sound quality enhancement with personalized sound equalizer controls

A system, comprising:

• an audio playback device;
• a graphical user interface;
• a processor;
• and
• a non-transitory computer-readable storage medium storing instructions which, when executed by the processor, cause the processor to:
• calculate percentile values for normalized gains in each of a plurality of equalizer bands, wherein the normalized gains are based on statistical norms for a distribution of gain values for each band of the plurality of equalizer bands;
• receive a user input adjusting a gain value for at least one band of the plurality of equalizer bands, wherein the user input is received from the graphical user interface showing adjustment values as the percentile values;
• adjust an audio output of the audio playback device based on the received user input;
• and
• cause the audio playback device to play the adjusted audio output.

One or more non-transitory computer-readable media storing processor-executable instructions that, when executed by at least one processor, cause the at least one processor to:

• calculate percentile values for normalized gains in each of a plurality of equalizer bands, wherein the normalized gains are based on statistical norms for a distribution of gain values for each band of the plurality of equalizer bands;
• receive a user input adjusting a gain value for at least one band of the plurality of equalizer bands, wherein the user input is received from a graphical user interface showing adjustment values as the percentile values;
• adjust an audio output of an audio playback device based on the received user input;
• and
• cause the audio playback device to play the adjusted audio output.