# US 2018/0324516 A1 · Personalization of auditory stimulus > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2018/0324516 A1 - Document ID: US20180324516A1 - Status: Published application - Kind: A1 - Application number: 16/031,305 - Filed: 2018-07-10 - Published: 2018-11-08 - Earliest claimed: 2015-08-31 - Assignees: Nura Holdings Pty Ltd - Applicants: Nura Holdings Pty Ltd - Inventors: Luke John Campbell; Kyle Damon Slater - Web page: https://patentgrep.com/patent/US20180324516A1 ## CPC - H04R 1/1041: {Mechanical or electronic switches, or control elements (switches in general H01H)} - G06F 16/636: {by using biological or physiological data} - H04R 1/10: Earpieces; Attachments therefor {; Earphones; Monophonic headphones (H04R1/28 takes precedence; stereophonic headphones H04R5/033)} - H04R 1/1091: {Details not provided for in groups H04R1/1008 - H04R1/1083} - H04R 27/02: Amplifying systems for the deaf - H04R 1/1016: {Earpieces of the intra-aural type} - H04R 1/1083: {Reduction of ambient noise (active noise reduction per se G10K11/175; protective devices for the ear, e.g. providing acoustic protection A61F11/06)} - H04R 25/70: {Adaptation of deaf aid to hearing loss, e.g. initial electronic fitting} - H04R 29/001: {for loudspeakers (H04R29/007 takes precedence)} - H04R 2201/107: Monophonic and stereophonic headphones with microphone for two-way hands free communication - H04R 2205/022: Plurality of transducers corresponding to a plurality of sound channels in each earpiece of headphones or in a single enclosure - H04R 2205/041: Adaptation of stereophonic signal reproduction for the hearing impaired - H04R 2225/41: Detection or adaptation of hearing aid parameters or programs to listening situation, e.g. pub, forest - H04R 2410/05: Noise reduction with a separate noise microphone - H04R 2420/07: Applications of wireless loudspeakers or wireless microphones - H04R 2460/15: Determination of the acoustic seal of ear moulds or ear tips of hearing devices - H04R: LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS (producing sounds with frequency not determined by supply frequency G10K) - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) ## Abstract Technology presented herein increases a user's enjoyment of sound by personalizing an audio signal so that the user perceives the audio signal as if the user had ideal hearing and/or desired hearing. In one embodiment, headphones on a user's head include a sensor and a speaker. While the speaker plays an audio signal to the user, the sensor records the user's response to the audio signal. The sensor can be a microphone, a brainwave sensor, an EEG sensor, etc. The user's response can be the audio response inside the user's ear, the brainwave response associated with the user, electrical skin response associated with the user, etc. Based on the measured response, and based on the knowledge of how other people perceive sound, the audio signal is modified to compensate for the difference between the user's hearing and the ideal hearing and/or desired hearing, therefore increasing the user's enjoyment of sound. ## Claims ### Claim 1 An apparatus comprising: one or more audio emitting members configured to emit an audio; a sensing member configured to make an objective measurement of an otoacoustic emission generated by a user's ear upon receiving the audio; a processor configured to: modify the audio based on the objective measurement of the otoacoustic emission; and send the modified audio to the one or more audio emitting members. ### Claim 2 (depends on 1) The apparatus of claim 1, the processor configured to: adjust a specified frequency range by increasing or decreasing an amplitude associated with the specified frequency range. ### Claim 3 (depends on 1) The apparatus of claim 1, the processor configured to: define a modification of the audio based on a statistical information representing data regarding human hearing profiles. ### Claim 4 (depends on 1) The apparatus of claim 1, the processor configured to: determine a hearing transfer function associated with the user based on the objective measurement of the otoacoustic emission; obtain a desired hearing transfer function; and based on the hearing transfer function associated with the user, modify the audio to compensate for a difference between the desired hearing transfer function and the hearing transfer function associated with the user. ### Claim 5 (depends on 1) The apparatus of claim 1, the sensing member comprising at least one of a microphone, an accelerometer, or an interferometer. ### Claim 6 (depends on 1) The apparatus of claim 1, comprising at least one of a headphones, or an ear bud, or a hearing assistance device. ### Claim 7 (depends on 1) The apparatus of claim 1, the processor configured to: derive a modification of the audio associated with the user from at least one of a hearing threshold of a frequency, an amplitude associated the frequency, a phase-shift of the frequency, or a latency of the frequency of measured otoacoustic emissions. ### Claim 8 (depends on 1) The apparatus of claim 1, the processor configured to: modify a frequency content of the audio including adjusting at least one of an amplitude, or phase of the audio. ### Claim 9 (depends on 1) The apparatus of claim 1, the one or more audio emitting members comprising: a high frequency speaker configured to emit sound in an audible frequency range; a low-frequency speaker configured to emit sound in the audible frequency range; a crossover, coupled to the high frequency speaker and the low-frequency speaker, the crossover configured to: receive the audio; perform low-pass filtering on the audio to obtain a first audio; send the first audio to the low-frequency speaker; perform high-pass filtering on the audio to obtain a second audio; and send the second audio to the high frequency speaker. ### Claim 10 (depends on 1) The apparatus of claim 1, wherein the audio comprises a content audio. ### Claim 11 (depends on 1) The apparatus of claim 1, the processor configured to continuously refine the measurement of the otoacoustic emission associated with the user by refining the measurement of the otoacoustic emission associated with a subset of frequencies. ### Claim 12 A method comprising: emitting an audio with one or more audio emitting members; making an objective measurement of an otoacoustic emission generated by a user's ear upon receiving the audio; modifying the audio based on the objective measurement of the otoacoustic emission; and sending the modified audio to the one or more audio emitting members. ### Claim 13 (depends on 12) The method of claim 12, comprising: adjusting a specified frequency range by increasing or decreasing an amplitude of the specified frequency range. ### Claim 14 (depends on 12) The method of claim 12, comprising: defining a modification of the audio based on a statistical information representing data regarding human hearing profiles. ### Claim 15 (depends on 12) The method of claim 12, comprising: determining a hearing transfer function associated with the user based on the objective measurement of the otoacoustic emission; obtaining a desired hearing transfer function; and based on the hearing transfer function associated with the user, modifying the audio to compensate for a difference between the desired hearing transfer function and the hearing transfer function associated with the user. ### Claim 16 (depends on 12) The method of claim 12, comprising: deriving a modification of the audio associated with the user from at least one of a hearing threshold of a frequency, an amplitude associated the frequency, a phase-shift of the frequency, or a latency of the frequency of measured otoacoustic emissions. ### Claim 17 (depends on 12) The method of claim 12, said modifying the audio comprising: modifying a frequency content of the audio including adjusting at least one of an amplitude, or phase of the audio. ### Claim 18 (depends on 12) The method of claim 12, comprising: performing low-pass filtering on the audio to obtain a first audio; sending the first audio to a low-frequency speaker; performing high-pass filtering on the audio to obtain a second audio; and sending the second audio to a high frequency speaker. ### Claim 19 (depends on 12) The method of claim 12, comprising: transmitting the otoacoustic emission associated with the user from or to an external database. ### Claim 20 (depends on 12) The method of claim 12, comprising: continuously refining the measurement of the otoacoustic emission associated with the user by refining the measurement of the otoacoustic emission associated with a subset of frequencies. ### Claim 21 A method comprising: means for emitting an audio; means for making an objective measurement of an otoacoustic emission generated by a user's ear upon receiving the audio; means for modifying the audio based on the objective measurement of the otoacoustic emission; and means for emitting the modified audio. ### Claim 22 (depends on 21) The method of claim 21, comprising: means for determining a hearing transfer function associated with the user based on the objective measurement of the otoacoustic emission; and based on the hearing transfer function associated with the user, means for modifying the audio to compensate for a difference between a desired hearing transfer function and the hearing transfer function associated with the user. ### Claim 23 (depends on 12) The method of claim 12, comprising: means for performing low-pass filtering on the audio to obtain a first audio; means for sending the first audio to a low-frequency speaker; means for performing high-pass filtering on the audio to obtain a second audio; and means for sending the second audio to a high frequency speaker. ### Claim 24 (depends on 12) The method of claim 12, comprising: means for transmitting the otoacoustic emission associated with the user from or to an external database. ### Claim 25 (depends on 12) The method of claim 12, comprising: means for continuously refining the measurement of the otoacoustic emission associated with the user by refining the measurement of the otoacoustic emission associated with a subset of frequencies.