US 12,745,040 B2 · Real-time content-adaptive headphone amplifier with dynamic power consumption and psychoacoustic correction

Abstract

This invention relates to an audio signal correction system that optimizes sound quality by dynamically adjusting for device-specific and content-specific factors. The system continuously monitors frequency-specific power consumption and impedance of audio transducers, such as headphones, to ensure efficient power usage and balanced sound across the frequency spectrum. Real-time adjustments are made through filters, including psychoacoustic corrections based on human auditory models (e.g., Fletcher-Munson curves), ensuring that sound is perceived as evenly distributed, regardless of volume or frequency. The system also employs a convolutional neural network (CNN) to analyze the incoming audio signal, generating confidence metrics based on the signal's characteristics (e.g., genre, speech). These metrics determine which content-specific filters to apply and how much of each, tailoring the audio output to the specific content. The result is an adaptive system that delivers a highly optimized and personalized listening experience.

Claims18

Dependent claims

A system comprising:

one or more processors;
one or more memory devices;
one or more sensors communicatively coupled to the one or more processors;
an audio amplifier communicatively coupled to the one or more processors;
an audio transducer communicatively coupled to the audio amplifier;
wherein the one or more memory devices comprise a series of instructions executable by the one or more processors, wherein executing the series of instructions causes the one or more processors to:
receive an incoming audio signal and amplify the incoming audio signal through the audio amplifier;
output the amplified audio signal through the audio transducer, wherein the amplified audio signal comprises one or more frequencies output;
for each of the one or more frequencies output by the audio transducer, measure a frequency-specific AC power consumption of the audio transducer;
and
based on the frequency-specific AC power consumption, calculate an impedance of the audio transducer and a projected volume level of the audio transducer.

8 more elements

A device, comprising:

one or more processors;
one or more memory devices;
one or more sensors communicatively coupled to the one or more processors;
an audio amplifier communicatively coupled to the one or more processors and configured to output to an audio transducer;
wherein the one or more memory devices comprise a series of instructions executable by the one or more processors, wherein executing the series of instructions causes the one or more processors to:
receive an incoming audio signal and amplify the incoming audio signal through the audio amplifier;
output the amplified audio signal through the audio transducer, wherein the amplified audio signal comprises one or more frequencies output;
for each of the one or more frequencies output by the audio transducer, measure a frequency-specific AC power consumption of the audio transducer;
and
based on the frequency-specific AC power consumption, calculate an impedance of the audio transducer and a projected volume level of the audio transducer.

7 more elements

A method of audio signal correction embodied in machine-readable instructions stored in one or more memory devices and executable by one or more processors, the instructions comprising:

receiving, through the one or more processors, an incoming audio signal and amplifying the incoming audio signal through an audio amplifier communicatively coupled to the one or more processors,
outputting the amplified audio signal through an audio transducer coupled to the audio amplifier, wherein the amplified audio signal comprises one or more frequencies output;
measuring, through one or more sensor(s) communicatively coupled to the one or more processor(s), a frequency-specific AC power consumption of the audio transducer for each of the one or more frequencies output by the audio transducer;
and
calculating an impedance of the audio transducer and a projected volume level of the audio transducer based on the frequency-specific AC power consumption.

2 more elements

Dependencies are inferred from the claim text.

Real-time content-adaptive headphone amplifier with dynamic power consumption and psychoacoustic correction

Life of this patent

Real-time content-adaptive headphone amplifier with dynamic power consumption and psychoacoustic correction

Life of this patent

Abstract

Claims18