US-12620955-B2 - Method for processing audio signal to be supplied to device, electronic apparatus, and computer-readable recording medium

US12620955B2US 12620955 B2US12620955 B2US 12620955B2US-12620955-B2

Abstract

A method for processing an audio signal, an electronic apparatus, and a computer-readable recording medium that records a program, the method, the electronic apparatus, and the program enabling appropriately-engineered sound to be listened to on various devices. After model information about a model of a device to which an audio signal is supplied has been acquired, from among a plurality of sound-setting information items associated with this model information, one of the sound-setting information items, the one corresponding to a type of sound, the type having been specified in accordance with an instruction to be input, is selected. Then, an audio signal is processed in accordance with this selected one of the sound-setting information items, and the processed audio signal is supplied to the device.

Inventors

Hirotoshi Furuya

Assignees

A&M GROUP INC.

Dates

Publication Date: 20260505
Application Date: 20230214
Priority Date: 20220216

Claims (11)

1 . A method for processing an audio signal to be supplied to a device, the device converting the audio signal to sound, an electronic apparatus that processes the audio signal storing: a plurality of sound-setting information items that respectively specify content of processes on the audio signal, and a plurality of model-information items that respectively include information items about models of the device, the plurality of sound-setting information items corresponding respectively to different types of the sound, the plurality of model-information items each being associated with one or more sound-setting information items among the plurality of sound-setting information items, the one or more sound-setting information items corresponding to one or more types of the sound among the different types of the sound, and the method comprising: acquiring, by the electronic apparatus, the plurality of model-information items about the models of the device to which the audio signal that has been subjected to the processes is supplied; selecting, by the electronic apparatus, one sound-setting information item from among the plurality of sound-setting information items associated with the acquired plurality of model-information items, the one sound-setting information item corresponding to one type among the different types of the sound, the one type having been specified in accordance with an instruction to be input; processing, by the electronic apparatus, the audio signal in accordance with the selected one sound-setting information item; acquiring, by the electronic apparatus, sound-type information items that indicate the different types of the sound which is expressed by the audio signal to be subjected to the processes; and selecting, by the electronic apparatus, another one sound-setting information item as a preset sound-setting information item from among the plurality of sound-setting information items associated with the acquired plurality of model-information items, the other one sound-setting information item corresponding to another one type among the different types of the sound, the other one type being indicated by one sound-type information item among the acquired sound-type information items, wherein the selecting of the one sound-setting information item by the electronic apparatus includes selecting, in accordance with the instruction to be input, the one sound-setting information item that is same as or different from the preset sound-setting information, and the acquiring of the sound-type information items by the electronic apparatus includes: analyzing features of the sound which is expressed by the audio signal to be subjected to the processes, and distinguishing the different types of the sound which is expressed by the audio signal to be subjected to the processes by applying the analyzed features of the sound to a learned model that has been generated to distinguish the different types of the sound on a basis of the analyzed features of the sound.
2 . A method for processing an audio signal to be supplied to a device, the device converting the audio signal to sound, an electronic apparatus that processes the audio signal storing: a plurality of sound-setting information items that respectively specify content of processes on the audio signal, and a plurality of model-information items that respectively include information items about models of the device, the plurality of sound-setting information items corresponding respectively to different types of the sound, the plurality of model-information items each being associated with one or more sound-setting information items among the plurality of sound-setting information items, the one or more sound-setting information items corresponding to one or more types of the sound among the different types of the sound, and the method comprising: acquiring, by the electronic apparatus, the plurality of model-information items about the models of the device to which the audio signal that has been subjected to the processes is supplied; acquiring, by the electronic apparatus, sound-type information items that indicate the different types of the sound which is expressed by the audio signal to be subjected to the processes; selecting, by the electronic apparatus, one sound-setting information item from among the plurality of sound-setting information items associated with the acquired plurality of model-information items, the one sound-setting information item corresponding to one type among the different types of the sound, the one type being indicated by one sound-type information item among the acquired sound-type information items; and processing, by the electronic apparatus, the audio signal in accordance with the selected one sound-setting information item, wherein acquiring of the sound-type information items by the electronic apparatus includes: analyzing features of the sound which is expressed by the audio signal to be subjected to the processes, and distinguishing the different types of the sound which is expressed by the audio signal to be subjected to the processes by applying the analyzed features of the sound to a learned model that has been generated to distinguish the different types of the sound on a basis of the analyzed features of the sound.
3 . The method for processing the audio signal to be supplied to the device according to claim 2 , wherein processing of the audio signal by the electronic apparatus includes executing, in a stepwise manner on the audio signal to be subjected to the processes, one or more signal processes that have been selected from among a plurality of signal processes for executing different processes on the audio signal, wherein the one or more signal processes include processing the audio signal in accordance respectively with given individual-setting information items, and wherein the plurality of sound-setting information items each include information that specifies the one or more signal processes, information that specifies an order of execution of the one or more signal processes on the audio signal, and the given individual-setting information items to be used respectively in the one or more signal processes.
4 . The method for processing the audio signal to be supplied to the device according to claim 3 , further comprising changing, by the electronic apparatus, a given at least one individual-setting information item among the given individual-setting information items in accordance with the instruction to be input, the given at least one individual-setting information item being used in an at least one signal process among the one or more signal processes, wherein processing of the audio signal by the electronic apparatus includes processing, in response to the changing of the given at least one individual-setting information item to be used in the at least one signal process, the audio signal in accordance with the changed at least one individual-setting information item in the at least one signal process.
5 . The method for processing the audio signal to be supplied to the device according to claim 4 , further comprising: acquiring, by the electronic apparatus, a sound-identification information item for identifying the audio signal to be subjected to the processes; and causing, by the electronic apparatus, the changed at least one individual-setting information item to be stored in association with: the acquired sound-identification information item, an acquired corresponding one model-information item among the acquired plurality of model-information items, and the selected one sound-setting information item, and the changed at least one individual-setting information item having been changed in accordance with the instruction to be input, wherein the processing of the audio signal by the electronic apparatus includes processing, in a case where the changed at least one individual-setting information item has been stored in association with the acquired sound-identification information item, the acquired corresponding one model-information item, and the selected one sound-setting information item, and the audio signal with use of the stored changed at least one individual-setting information item instead of the given individual-setting information items included in the selected one sound-setting information item.
6 . A method for processing an audio signal to be supplied to a device, the device converting the audio signal to sound, an electronic apparatus that processes the audio signal storing a plurality of sound-setting information items that respectively specify content of processes on the audio signal, and a plurality of model-information items that respectively include information items about models of the device, the plurality of sound-setting information items corresponding respectively to different types of the sound, the plurality of model-information items each being associated with one or more sound-setting information items among the plurality of sound-setting information items, the one or more sound-setting information items corresponding to one or more types of the sound among the different types of the sound, and the method comprising: acquiring, by the electronic apparatus, the plurality of model-information items about the models of the device to which the audio signal that has been subjected to the processes is supplied; selecting, by the electronic apparatus, one sound-setting information item from among the plurality of sound-setting information items associated with the acquired plurality of model-information items, the one sound-setting information item corresponding to one type among the different types of the sound, the one type having been specified in accordance with an instruction to be input; and processing, by the electronic apparatus, the audio signal in accordance with the selected one sound-setting information item, wherein processing of the audio signal by the electronic apparatus includes executing, in a stepwise manner on the audio signal to be subjected to the processes, one or more signal processes that have been selected from among a plurality of signal processes for executing different processes on the audio signal, the one or more signal processes include processing the audio signal in accordance respectively with given individual-setting information items, the plurality of sound-setting information items each include: information that specifies the one or more signal processes, information that specifies an order of execution of the one or more signal processes on the audio signal, and the given individual-setting information items to be used respectively in the one or more signal processes, the method further comprising: changing, by the electronic apparatus, a given at least one individual-setting information item among the given individual-setting information items in accordance with the instruction to be input, the given at least one individual-setting information item being used in an at least one signal process among the one or more signal processes; acquiring, by the electronic apparatus, a sound-identification information item for identifying the audio signal to be subjected to the processes; and causing, by the electronic apparatus, the changed at least one individual-setting information item to be stored in association with: the acquired sound-identification information item, an acquired corresponding one model-information item among the acquired plurality of model-information items, and the selected one sound-setting information item, wherein the changed at least one individual-setting information item has been changed in accordance with the instruction to be input, the processing of the audio signal by the electronic apparatus includes: processing, in response to the changing of the given at least one individual-setting information item to be used in the at least one signal process, the audio signal in accordance with the changed at least one individual-setting information item in the at least one signal process, and processing, in a case where the changed at least one individual-setting information item has been stored in association with: the acquired sound-identification information item, the acquired corresponding one model-information item, and the selected one sound-setting information item, and the audio signal with use of the stored changed at least one individual-setting information item instead of the given individual-setting information items included in the selected one sound-setting information item.
7 . The method for processing the audio signal to be supplied to the device according to claim 6 , further comprising: acquiring, by the electronic apparatus, sound-type information items that indicate the different types of the sound which is expressed by the audio signal to be subjected to the processes; and selecting, by the electronic apparatus, another one sound-setting information item as a preset sound-setting information item from among the plurality of sound-setting information items associated with the acquired plurality of model-information items, the other one sound-setting information item corresponding to another one type among the different types of the sound, the other one type being indicated by one sound-type information item among the acquired sound-type information items, and wherein selecting of the one sound-setting information items by the electronic apparatus includes selecting, in accordance with the instruction to be input, the one sound-setting information item that is same as or different from the preset sound-setting information.
8 . A method for processing an audio signal to be supplied to a device, the device converting the audio signal to sound, an electronic apparatus that processes the audio signal storing: a plurality of sound-setting information items that respectively specify content of processes on the audio signal, and a plurality of model-information items that respectively include information items about models of the device, the plurality of sound-setting information items corresponding respectively to different types of the sound, the plurality of model-information items each being associated with one or more sound-setting information items among the plurality of sound-setting information items, the one or more sound-setting information items corresponding to one or more types of the sound among the different types of the sound, and the method comprising: acquiring, by the electronic apparatus, the plurality of model-information items about the models of the device to which the audio signal that has been subjected to the processes is supplied; acquiring, by the electronic apparatus, sound-type information items that indicate the different types of the sound which is expressed by the audio signal to be subjected to the processes; selecting, by the electronic apparatus, one sound-setting information item from among the plurality of sound-setting information items associated with the acquired plurality of model-information items, the one sound-setting information item corresponding to one type among the different types of the sound, the one type being indicated by one sound-type information item among the acquired sound-type information items; and processing, by the electronic apparatus, the audio signal in accordance with the selected one sound-setting information item, wherein processing of the audio signal by the electronic apparatus includes executing, in a stepwise manner on the audio signal to be subjected to the processes, one or more signal processes that have been selected from among a plurality of signal processes for executing different processes on the audio signal, the one or more signal processes including processing the audio signal in accordance respectively with given individual-setting information items, the plurality of sound-setting information items each including: information that specifies the one or more signal processes, information that specifies an order of execution of the one or more signal processes on the audio signal, and the given individual-setting information items to be used respectively in the one or more signal processes, the method further comprising: changing, by the electronic apparatus, a given at least one individual-setting information item among the given individual-setting information items in accordance with the instruction to be input, the given at least one individual-setting information item being used in an at least one signal process among the one or more signal processes; acquiring, by the electronic apparatus, a sound-identification information item for identifying the audio signal to be subjected to the processes; and causing, by the electronic apparatus, the changed at least one individual-setting information item to be stored in association with: the acquired sound-identification information item, an acquired corresponding one model-information item among the acquired plurality of model-information items, and the selected one sound-setting information item, the changed at least one individual-setting information item has been changed in accordance with the instruction to be input, the processing of the audio signal by the electronic apparatus includes: processing, in response to the changing of the given at least one individual-setting information item to be used in the at least one signal process, the audio signal in accordance with the changed at least one individual-setting information item in the at least one signal process, and processing, in a case where the changed at least one individual-setting information item has been stored in association with: the acquired sound-identification information item, the acquired corresponding one model-information item, and the selected one sound-setting information item, and the audio signal with use of the stored changed at least one individual-setting information item instead of the given individual-setting information items included in the selected one sound-setting information item.
9 . The method for processing the audio signal to be supplied to the device according to claim 6 , wherein the acquiring of the plurality of model-information items by the electronic apparatus includes acquiring the plurality of model-information items on a basis of information received from the device via communication with the device.
10 . The method for processing the audio signal to be supplied to the device according to claim 6 , wherein the processing of the audio signal by the electronic apparatus includes causing an audio-signal processing module connected to the electronic apparatus to process the audio signal.
11 . An electronic apparatus that processes an audio signal to be supplied to a device, and comprises: a processing unit; and a storage unit that stores a program including a command which can be executed by the processing unit, the processing unit executing the program including the command to carry out the steps of the method for processing the audio signal to be supplied to the device according to claim 6 .

Description

TECHNICAL FIELD The present disclosure relates to a method for processing an audio signal to be supplied to a device such as headphones, an electronic apparatus, and a computer-readable recording medium. BACKGROUND A large number of software tools for sound engineering of music pieces on personal computers, smartphones, and the like have been released, which is enabling even amateurs to create their own favorite sound. In addition, in recent years, subscription-based music distribution services have become widespread, which is enabling music to be easily listened to on various devices connected to networks. SUMMARY Incidentally, when the same digital audio signal is converted to sound via speakers of different devices (such as headphones), due to variations in frequency characteristics, use environments, and the like from device to device, the sound is perceived differently on each of the devices. Thus, there is a demand for listening to music and the like that have been appropriately adjusted in accordance with the devices. However, inherently, the sound engineering of the music pieces and the like requires a high level of knowledge and skill. Thus, even when the above-mentioned software tools are given, it is difficult for average users to create the sound as they want. The technology disclosed herein present disclosure has been made in view of such circumstances, and an object thereof is to provide a method for processing an audio signal, the method enabling appropriately-engineered sound to be listened to on various devices, an electronic apparatus that executes such a method for processing an audio signal, and a computer-readable recording medium that records a program for causing the electronic apparatus to execute such a method for processing an audio signal. According to a first aspect of the technology disclosed herein, there is provided a method for processing an audio signal to be supplied to a device, the device converting the audio signal to sound,an electronic apparatus that processes the audio signal storing a plurality of sound-setting information items that respectively specify content of processes on the audio signal, anda plurality of model-information items that respectively include information items about models of the device, the plurality of sound-setting information items corresponding respectively to different types of the sound,the plurality of model-information items each being associated with one or more sound-setting information items among the plurality of sound-setting information items, the one or more sound-setting information items corresponding to one or more types of the sound among the different types of the sound, the method including:acquiring, by the electronic apparatus, the plurality of model-information items about the models of the device to which the audio signal that has been subjected to the processes is supplied;selecting, by the electronic apparatus, one sound-setting information item from among the plurality of sound-setting information items associated with the acquired plurality of model-information items, the one sound-setting information item corresponding to one type among the different types of the sound, the one type having been specified in accordance with an instruction to be input; andprocessing, by the electronic apparatus, the audio signal in accordance with the selected one sound-setting information item. According to a second aspect of the technology disclosed herein, there is provided an electronic apparatus that processes an audio signal to be supplied to a device, and includes: a processing unit; anda storage unit that stores a program including a command which can be executed by the processing unit,the device converting the audio signal to sound,the electronic apparatus that processes the audio signal storing a plurality of sound-setting information items that respectively specify content of processes on the audio signal, anda plurality of model-information items that respectively include information items about models of the device, the plurality of sound-setting information items corresponding respectively to different types of the sound,the plurality of model-information items each being associated with one or more sound-setting information items among the plurality of sound-setting information items, the one or more sound-setting information items corresponding to one or more types of the sound among the different types of the sound,the program including the command to acquire the plurality of model-information items about the models of the device to which the audio signal that has been subjected to the processes is supplied,to select one sound-setting information item from among the plurality of sound-setting information items associated with the acquired plurality of model-information items, the one sound-setting information item corresponding to one type among the different types of the sound,