Dynamic audio equalization

An apparatus for performing automatic speed-based audio control, the apparatus comprising:

• a vehicle speed input configured to receive a signal representing a speed of a vehicle;
• an audio input configured to receive an audio signal;
• a first equalization block associated with a first frequency;
• and
• a second equalization block associated with a second frequency,
• the first equalization block configured to:
• receive the signal representing the speed of the vehicle,
• access a first equalization curve based on the signal representing the speed of the vehicle and an adjustment level set based on a current operating mode of the vehicle from a plurality of available operating modes, the first equalization curve defining a first gain adjustment for the first frequency, and
• apply the first gain adjustment defined by the first equalization curve to the first frequency of the audio signal,
• the second equalization block configured to:
• receive the signal representing the speed of the vehicle,
• access a second equalization curve based on the signal representing the speed of the vehicle and the adjustment level set based on the current operating mode of the vehicle, the second equalization curve defining a second gain adjustment for the second frequency, and
• apply the second gain adjustment defined by the second equalization curve to the second frequency of the audio signal.

A system for performing automatic speed-based audio control, the system comprising:

• an electronic control unit included in a vehicle, wherein the electronic control unit is configured to:
• receive a signal representing a speed of the vehicle,
• receive an audio signal from an audio source,
• set an adjustment level based on a current operating mode of the vehicle from a plurality of available operating modes,
• access a plurality of equalization curves based on the signal representing the speed of the vehicle and the adjustment level set based on the current operating mode of the vehicle, wherein each of the plurality of equalization curves define both a linear gain increase and a non-linear gain increase,
• apply a gain adjustment defined by one or more of the plurality of equalization curves to each of a plurality of frequencies of the audio signal to generate an adjusted audio signal, and
• output the adjusted audio signal to a speaker.