Patent ID: 9628911
Date: 2017-04-18
CPC Classifications: H04R,H04S

Claim:
1. A process for generating an equalization pattern in an audio system that includes at least one loudspeaker unite deployed in a listening area, said listening area having an ambient noise level, said process comprising: providing a microphone that is in possession of a user in the listening area; an indicating step, by the user while in the listening area in possession of the microphone, that the user is at an intended listening location in the listening area, the indicating step comprising the user taking an action that remotely signals the audio system; in response to the indicating step, automatically beginning radiation of a test audio signal from a first of the at least one loudspeaker unit at a first amplitude, where the test audio signal radiated at the first amplitude is received by the microphone at the intended listening location and a first frequency response of the test audio signal that was radiated at the first amplitude is measured; after the reception of the test audio signal that was radiated at the first amplitude, automatically causing radiation of a test audio signal from the first of the at least one loudspeaker unit at a second amplitude that is lower than the first amplitude, where the test audio signal radiated at the second amplitude is received by the microphone at the intended listening location, and a second frequency response of the test audio signal that was radiated at the second amplitude is measured; automatically comparing the first and second frequency responses so as to determine a difference between the first and second frequency responses; based on the determined differences between the first and second frequency responses, measuring, by said audio system, the signal to noise ratio in said listening area; in the event that said signal to noise ratio is below a threshold ratio, increasing said signal to noise ratio; calculating an equalization pattern from at least one frequency response; and applying the equalization pattern to audio signals that drive a loudspeaker unit.