CN108377445B - Volume adjusting method and device for intelligent sound box, storage medium and intelligent sound box - Google Patents
Volume adjusting method and device for intelligent sound box, storage medium and intelligent sound box Download PDFInfo
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- CN108377445B CN108377445B CN201810310698.5A CN201810310698A CN108377445B CN 108377445 B CN108377445 B CN 108377445B CN 201810310698 A CN201810310698 A CN 201810310698A CN 108377445 B CN108377445 B CN 108377445B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R3/00—Circuits for transducers, loudspeakers or microphones
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2430/00—Signal processing covered by H04R, not provided for in its groups
Abstract
The embodiment of the invention discloses a volume adjusting method and device of an intelligent sound box, a storage medium and the intelligent sound box. The method comprises the following steps: acquiring audio data to be played; determining whether a sound fragment with the sound volume higher than a preset protection threshold value exists in the audio data to be played; if yes, each single sound box of the intelligent sound box is moved from the initial position to the user direction for a preset distance, and the playing volume is adjusted according to a preset volume adjusting rule. The technical scheme provided by the embodiment of the invention can not influence the auditory effect of sound under the condition of playing higher volume, and can relieve the problem of equipment fatigue caused by high-load work of the sound box.
Description
Technical Field
The embodiment of the invention relates to the technical field of intelligent sound boxes, in particular to a volume adjusting method and device of an intelligent sound box, a storage medium and the intelligent sound box.
Background
At the present stage, with the gradual improvement of living standard of people, people pursue higher and higher sound effects for watching programs such as television or movies. Large smart speaker devices are also slowly becoming a necessity in every modern home. For the aesthetic requirement of household arrangement, the smart sound boxes are usually symmetrically arranged at two ends of the television, or if there are four single sound boxes, two other single sound boxes are arranged behind the sofa. However, since the professional speaker device has already amplified the audio data, the effect of enhancing the sound effect can be achieved, but if there is a higher volume in the audio data to be played, which needs to be played, the speaker device will work at a high load, which affects the service life of the speaker device.
Disclosure of Invention
The embodiment of the invention provides a volume adjusting method and device of an intelligent sound box, a storage medium and the intelligent sound box, which can not only not influence the auditory effect of sound under the condition of playing higher volume, but also can relieve the problem of equipment fatigue caused by high-load work of the sound box.
In a first aspect, an embodiment of the present invention provides a volume adjustment method for a smart sound box, where the method includes:
acquiring audio data to be played;
determining whether a sound fragment with the sound volume higher than a preset protection threshold value exists in the audio data to be played;
if yes, each single sound box of the intelligent sound box is moved from the initial position to the user direction for a preset distance, and the playing volume is adjusted according to a preset volume adjusting rule.
Further, before each individual speaker of the smart speaker is moved from the initial position to the user direction by the preset distance, the method further includes:
determining the position of the user, and specifically comprising:
determining the position of a user by one or more of a television camera, a sound box distance sensor and a sofa pressure sensor at intervals of a preset time period; the user includes one user or a plurality of users.
Further, before moving each individual speaker of the smart speaker toward the user by a preset distance, the method further includes:
and judging whether an obstacle exists on a moving path between the current position and the adjustment target position of each single sound box, and if so, canceling the position adjustment of the single sound box.
Further, the adjusting the playing volume according to a preset volume adjusting rule includes:
acquiring the current moving distance of each single sound box;
and determining a volume adjustment parameter corresponding to the current moving distance from a volume adjustment mapping table, and adjusting the playing volume of the single sound box according to the volume adjustment parameter.
Further, after each individual sound box of the smart sound box is moved from the initial position to the user direction by a preset distance and the playing volume is adjusted according to a preset volume adjustment rule, the method further comprises:
and when it is determined that no sound fragment with the volume higher than a preset protection threshold value exists in the audio data to be played in a preset time period, controlling each single sound box to move to an initial position, and adjusting the playing volume according to the inverse rule of a preset volume adjustment rule.
In a second aspect, an embodiment of the present invention further provides a volume adjustment device for a smart speaker, where the device includes:
the audio data to be played acquisition module is used for acquiring the audio data to be played;
the volume judgment module is used for determining whether a sound fragment with the volume higher than a preset protection threshold value exists in the audio data to be played;
and the volume adjusting module is used for moving each single sound box of the intelligent sound box from the initial position to the user direction for a preset distance if the volume judging module judges that the sound box is positive, and adjusting the playing volume according to a preset volume adjusting rule.
Further, the device further includes a user location determining module, specifically configured to:
determining the position of a user by one or more of a television camera, a sound box distance sensor and a sofa pressure sensor at intervals of a preset time period; the user includes one user or a plurality of users.
Further, the apparatus further comprises:
and the barrier judgment module is used for judging whether barriers exist on a moving path between the current position of each single sound box and the adjustment target position, and if so, canceling the position adjustment of the single sound boxes.
Further, the volume adjusting module includes:
a current movement distance obtaining unit, configured to obtain a current movement distance of each individual sound box;
and the volume adjusting unit is used for determining a volume adjusting parameter corresponding to the current moving distance from a volume adjusting mapping table and adjusting the playing volume of the single sound box according to the volume adjusting parameter.
Further, the apparatus further comprises:
and the sound box reset adjusting module is used for controlling each single sound box to move to an initial position and adjusting the playing volume according to the inverse rule of the preset volume adjusting rule when the fact that the sound fragment with the volume higher than the preset protection threshold value does not exist in the audio data to be played in the preset time period is determined.
In a third aspect, an embodiment of the present invention provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements a volume adjustment method for a smart sound box according to an embodiment of the present invention.
In a fourth aspect, an embodiment of the present invention provides a smart sound box, where the smart sound box includes:
at least one processor; and a memory communicatively coupled to the at least one processor; wherein the content of the first and second substances,
the memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor to enable the at least one processor to execute the volume adjustment method for a smart sound box according to the embodiment of the invention.
According to the technical scheme provided by the embodiment of the invention, the audio data to be played is obtained; determining whether a sound fragment with the sound volume higher than a preset protection threshold value exists in the audio data to be played; if, then remove every monomer audio amplifier of intelligent audio amplifier from initial position to user's direction and predetermine the distance to adjust the broadcast volume according to predetermineeing volume adjustment rule, can neither influence the auditory effect of sound under the higher volume's of broadcast condition, can alleviate the tired problem of equipment that audio amplifier high load work brought simultaneously again.
Drawings
Fig. 1 is a flowchart of a volume adjustment method for a smart sound box according to an embodiment of the present invention;
fig. 2 is a flowchart of a volume adjustment method for a smart sound box according to a second embodiment of the present invention;
fig. 3 is a schematic structural diagram of a volume adjustment device of an intelligent sound box according to a third embodiment of the present invention;
fig. 4 is a schematic structural diagram of an intelligent sound box according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
Before discussing exemplary embodiments in more detail, it should be noted that some exemplary embodiments are described as processes or methods depicted as flowcharts. Although a flowchart may describe the steps as a sequential process, many of the steps can be performed in parallel, concurrently or simultaneously. In addition, the order of the steps may be rearranged. The process may be terminated when its operations are completed, but may have additional steps not included in the figure. The processes may correspond to methods, functions, procedures, subroutines, and the like.
Example one
Fig. 1 is a flowchart of a volume adjustment method for a smart sound box according to an embodiment of the present invention, where the method is applicable to a situation where the smart sound box plays sound, and the method can be executed by the volume adjustment device for a smart sound box according to an embodiment of the present invention, and the device can be implemented by software and/or hardware and can be integrated in the smart sound box.
As shown in fig. 1, the volume adjusting method of the smart speaker includes:
and S110, acquiring audio data to be played.
The audio data may be stored in a file to be played, such as a movie, a tv show, an entertainment program, etc. stored in a certain website, but live webcasting and live tv broadcast cannot acquire the audio data to be played, because the audio data of the live program is acquired in real time and cannot acquire the audio data in advance.
S120, determining whether a sound fragment with the sound volume higher than a preset protection threshold value exists in the audio data to be played; if yes, go to S130; if not, go to S150.
The method includes the steps that information corresponding to tones and volume is stored in audio data, analysis can be conducted according to the volume information, the volume set by each single sound box of the current intelligent sound box can be specifically combined, the volume of each single sound box can be different in setting, when the current volume of each single sound box is combined, whether the volume exceeding a preset protection threshold value exists or not is determined when a sound clip with the higher volume is played by each single sound box at present, if the volume of the preset protection threshold value is 90 decibels, when the playing volume in the audio data exceeds 90 decibels, the following volume adjusting measures are executed. The 90 decibels can be an empirical value which is set by factory, the sound volume of each single sound box which is actually played and exceeds the threshold value cannot cause direct damage to the intelligent sound box, but the arrangement can avoid the situations of horn fatigue and the like caused by continuous playing of high-volume audio data of a certain single sound box in a period of time, and can effectively protect the sound generating device of the intelligent sound box. Meanwhile, the phenomenon of overheating caused by continuous high current of a driving circuit for controlling the sound production device can be avoided.
S130, moving each single sound box of the intelligent sound box from the initial position to the user direction for a preset distance, and adjusting the playing volume according to a preset volume adjusting rule.
The preset distance may be 0.2 m, 0.3 m, 0.5 m, or the like, and the distance moved to the user direction may be determined according to the volume information of the audio data to be played. The user direction can be the direction that defaults to setting up to the audio amplifier just right, can realize through setting up electronic gyro wheel at the audio amplifier base. When each single sound box of the intelligent sound box moves, the volume is adjusted, and the preset volume adjustment rule can be that the volume is reduced by a preset value, such as 2 decibels, or the volume is multiplied by a coefficient smaller than 1, such as 0.9, when each single sound box of the intelligent sound box moves 0.1 meter towards the direction of a user. Just so can reduce the actual broadcast volume of audio amplifier through every monomer audio amplifier of removing intelligent audio amplifier, neither influence user's sense of hearing impression, can avoid every monomer audio amplifier of intelligent audio amplifier to make emergence equipment fatigue phenomenon because of high load work again, reach the effect that prolongs intelligent audio amplifier life-span.
S140, continuously playing the audio data.
And determining that no sound fragment with the sound volume higher than a preset protection threshold value exists in the audio data to be played, and continuing to play the sound without adjusting the position of the sound box.
According to the technical scheme provided by the embodiment of the invention, the audio data to be played is obtained; determining whether a sound fragment with the sound volume higher than a preset protection threshold value exists in the audio data to be played; if, then remove every monomer audio amplifier of intelligent audio amplifier from initial position to user's direction and predetermine the distance to adjust the broadcast volume according to predetermineeing volume adjustment rule, can neither influence the auditory effect of sound under the higher volume's of broadcast condition, can alleviate the tired problem of equipment that audio amplifier high load work brought simultaneously again.
On the basis of the above technical solution, optionally, before moving each individual sound box of the smart sound box from the initial position to the user direction by the preset distance, the method further includes: determining the position of the user, and specifically comprising: determining the position of a user by one or more of a television camera, a sound box distance sensor and a sofa pressure sensor at intervals of a preset time period; the user includes one user or a plurality of users. The method comprises the steps of obtaining an image of a sitting position of a user on a sofa through a television camera, determining the position of the user through an image recognition technology, configuring a camera on a sound box, configuring a camera on a single sound box, configuring cameras on a plurality of single sound boxes, and carrying out three-dimensional position analysis on the user after the image is obtained. In addition, a distance sensor can be arranged at a fixed height on the sound box, such as a height of 80 cm, and used for identifying the distance between 0.5 m and 6 m, and data of a pressure sensor arranged on the sofa can be acquired according to connection with the intelligent sofa. One or more of the above modes can be adopted, and other modes which can simply and effectively determine the position of the user can also be adopted, which is not described herein any more. The user may be one user or a plurality of users.
On the basis of the above technical solution, optionally, before moving each individual sound box of the smart sound box to the user direction by the preset distance, the method further includes: and judging whether an obstacle exists on a moving path between the current position and the adjustment target position of each single sound box, and if so, canceling the position adjustment of the single sound box. The advantage of setting up like this can avoid because of the existence of barrier and lead to monomer audio amplifier rotating the harm that the in-process caused because there is the barrier to influence its rotation, has improved the life of audio amplifier to form the protection to various components and parts of audio amplifier.
Example two
Fig. 2 is a flowchart of a volume adjustment method for a smart sound box according to a second embodiment of the present invention. On the basis of the above embodiments, the present embodiment is optimized as follows: the adjusting the playing volume according to the preset volume adjusting rule comprises: acquiring the current moving distance of each single sound box; and determining a volume adjustment parameter corresponding to the current moving distance from a volume adjustment mapping table, and adjusting the playing volume of the single sound box according to the volume adjustment parameter.
As shown in fig. 2, the volume adjusting method of the smart speaker includes:
s210, audio data to be played are obtained.
S220, determining whether a sound fragment with the sound volume higher than a preset protection threshold value exists in the audio data to be played; if not, executing S230; if yes, go to S260.
And S230, moving each single sound box of the intelligent sound box from the initial position to the user direction for a preset distance.
And S240, acquiring the current moving distance of each single sound box.
The current moving distance may be obtained by a positioning device, may also be obtained by other network approaches, and may also be obtained by calculating the moving time multiplied by the moving speed of each individual loudspeaker.
And S250, determining a volume adjusting parameter corresponding to the current moving distance from a volume adjusting mapping table, and adjusting the playing volume of the single sound box according to the volume adjusting parameter.
The volume adjustment mapping table can be set in advance according to a large number of experiments, and adjustment is performed according to the volume adjustment mapping table, so that the stability of sound heard by a user can be ensured, and the situation that the sound is increased or decreased in a certain process can be avoided. The volume adjustment parameter may be a volume value used for addition and subtraction, or may be a coefficient used for multiplying the current volume. And each single sound box adjusts the volume according to the moving distance of the single sound box.
And S260, continuously playing the audio data.
According to the technical scheme, on the basis of the technical schemes, the specific volume adjusting method is provided, and the volume adjusting mapping table is introduced, so that the calculation process is simple and accurate, coherent playing volume can be provided for a user, high-load work of each single sound box of the intelligent sound box can be avoided, and the service life of the intelligent sound box is prolonged.
On the basis of the above technical solution, optionally, after moving each individual sound box of the smart sound box from the initial position to the user direction by a preset distance and adjusting the playing volume according to a preset volume adjustment rule, the method further includes: and when it is determined that no sound fragment with the volume higher than a preset protection threshold value exists in the audio data to be played in a preset time period, controlling each single sound box to move to an initial position, and adjusting the playing volume according to the inverse rule of a preset volume adjustment rule. Wherein, the preset time interval can be 2 minutes, 5 minutes or even longer time, and the benefit of setting up like this can be when every monomer audio amplifier that need not to remove intelligent audio amplifier reduces the broadcast volume, resets every monomer audio amplifier, avoids producing the influence to user's walking space, improves the comfort level that the user used.
On the basis of the above technical scheme, optionally, the smart sound box device is turned off when each individual sound box is not reset, and then each individual sound box can be reset. When the user needs to use the intelligent sound box again, the played audio signal is identified again, and therefore the comfort level of the user in the using process is improved.
EXAMPLE III
Fig. 3 is a schematic structural diagram of a volume adjustment device of an intelligent sound box according to a third embodiment of the present invention. As shown in fig. 3, the volume adjusting device of the smart speaker includes:
an audio data to be played acquisition module 310, configured to acquire audio data to be played;
the volume judgment module 320 is configured to determine whether a sound segment with a volume higher than a preset protection threshold exists in the audio data to be played;
and a volume adjusting module 330, configured to, if the volume determining module 320 determines that the sound volume is positive, move each individual sound box of the smart sound box from an initial position to a user direction by a preset distance, and adjust the playing volume according to a preset volume adjusting rule.
According to the technical scheme provided by the embodiment of the invention, the audio data to be played is obtained; determining whether a sound fragment with the sound volume higher than a preset protection threshold value exists in the audio data to be played; if, then remove every monomer audio amplifier of intelligent audio amplifier from initial position to user's direction and predetermine the distance to adjust the broadcast volume according to predetermineeing volume adjustment rule, can neither influence the auditory effect of sound under the higher volume's of broadcast condition, can alleviate the tired problem of equipment that audio amplifier high load work brought simultaneously again.
On the basis of the above technical solutions, optionally, the apparatus further includes a user location determining module, which is specifically configured to:
determining the position of a user by one or more of a television camera, a sound box distance sensor and a sofa pressure sensor at intervals of a preset time period; the user includes one user or a plurality of users.
On the basis of the above technical solutions, optionally, the apparatus further includes:
and the barrier judgment module is used for judging whether barriers exist on a moving path between the current position of each single sound box and the adjustment target position, and if so, canceling the position adjustment of the single sound boxes.
On the basis of the above technical solutions, optionally, the volume adjusting module 330 includes:
a current movement distance obtaining unit, configured to obtain a current movement distance of each individual sound box;
and the volume adjusting unit is used for determining a volume adjusting parameter corresponding to the current moving distance from a volume adjusting mapping table and adjusting the playing volume of the single sound box according to the volume adjusting parameter.
On the basis of the above technical solutions, optionally, the apparatus further includes:
and the sound box reset adjusting module is used for controlling each single sound box to move to an initial position and adjusting the playing volume according to the inverse rule of the preset volume adjusting rule when the fact that the sound fragment with the volume higher than the preset protection threshold value does not exist in the audio data to be played in the preset time period is determined.
The product can execute the method provided by any embodiment of the invention, and has corresponding functional modules and beneficial effects of the execution method.
Example four
An embodiment of the present invention further provides a storage medium containing computer-executable instructions, where the computer-executable instructions are executed by a computer processor to perform a method for adjusting a volume of a smart sound box, and the method includes:
acquiring audio data to be played;
determining whether a sound fragment with the sound volume higher than a preset protection threshold value exists in the audio data to be played;
if yes, each single sound box of the intelligent sound box is moved from the initial position to the user direction for a preset distance, and the playing volume is adjusted according to a preset volume adjusting rule.
Storage medium-any of various types of memory devices or storage devices. The term "storage medium" is intended to include: mounting media such as CD-ROM, floppy disk, or tape devices; computer system memory or random access memory such as DRAM, DDR RAM, SRAM, EDO RAM, Lanbas (Rambus) RAM, etc.; non-volatile memory such as flash memory, magnetic media (e.g., hard disk or optical storage); registers or other similar types of memory elements, etc. The storage medium may also include other types of memory or combinations thereof. In addition, the storage medium may be located in the computer system in which the program is executed, or may be located in a different second computer system connected to the computer system through a network (such as the internet). The second computer system may provide the program instructions to the computer for execution. The term "storage medium" may include two or more storage media that may reside in different locations, such as in different computer systems that are connected by a network. The storage medium may store program instructions (e.g., embodied as a computer program) that are executable by one or more processors.
Of course, the storage medium containing the computer-executable instructions provided in the embodiments of the present invention is not limited to the volume adjustment operation of the smart sound box described above, and may also perform related operations in the volume adjustment method of the smart sound box provided in any embodiments of the present application.
EXAMPLE five
The embodiment of the invention provides an intelligent sound box, wherein the volume adjusting device of the intelligent sound box provided by the embodiment of the invention can be integrated in the intelligent sound box. Fig. 4 is a schematic structural diagram of an intelligent sound box according to an embodiment of the present invention. As shown in fig. 4, the smart speaker may include: at least one processor; and a memory communicatively coupled to the at least one processor; the memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor to enable the at least one processor to execute the volume adjustment method for the smart sound box according to any embodiment of the present invention.
The intelligent sound box provided by the embodiment of the invention can enjoy the best sound effect enjoyment brought by the sound box at any position of a user, and meanwhile, the intelligent sound box can experience extremely high technological experience.
The volume adjusting device, the storage medium and the smart sound box provided in the above embodiments can execute the volume adjusting method of the smart sound box provided in any embodiment of the present application, and have corresponding functional modules and beneficial effects for executing the method. For details of the technology that are not described in detail in the above embodiments, reference may be made to a volume adjustment method for a smart sound box provided in any embodiment of the present application.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (10)
1. A volume adjusting method of an intelligent sound box is characterized by comprising the following steps:
acquiring audio data to be played;
determining whether a sound fragment with the sound volume higher than a preset protection threshold value exists in the audio data to be played;
if yes, each single sound box of the intelligent sound box is moved from the initial position to the user direction for a preset distance, and the playing volume is adjusted according to a preset volume adjusting rule.
2. The method of claim 1, wherein before moving each individual speaker of the smart speaker from the initial position toward the user by the preset distance, the method further comprises:
determining the position of the user, and specifically comprising:
determining the position of a user by one or more of a television camera, a sound box distance sensor and a sofa pressure sensor at intervals of a preset time period; the user includes one user or a plurality of users.
3. The method of claim 1, wherein before moving each individual speaker of the smart speaker toward the user by the preset distance, the method further comprises:
and judging whether an obstacle exists on a moving path between the current position and the adjustment target position of each single sound box, and if so, canceling the position adjustment of the single sound box.
4. The method of claim 1, wherein the adjusting the playback volume according to a preset volume adjustment rule comprises:
acquiring the current moving distance of each single sound box;
and determining a volume adjustment parameter corresponding to the current moving distance from a volume adjustment mapping table, and adjusting the playing volume of the single sound box according to the volume adjustment parameter.
5. The method of claim 1, wherein after moving each individual speaker of the smart speaker from the initial position to the user direction by a preset distance and adjusting the playing volume according to a preset volume adjustment rule, the method further comprises:
and when it is determined that no sound fragment with the volume higher than a preset protection threshold value exists in the audio data to be played in a preset time period, controlling each single sound box to move to an initial position, and adjusting the playing volume according to the inverse rule of a preset volume adjustment rule.
6. The utility model provides a volume control device of intelligence audio amplifier which characterized in that includes:
the audio data to be played acquisition module is used for acquiring the audio data to be played;
the volume judgment module is used for determining whether a sound fragment with the volume higher than a preset protection threshold value exists in the audio data to be played;
and the volume adjusting module is used for moving each single sound box of the intelligent sound box from the initial position to the user direction for a preset distance if the volume judging module judges that the sound box is positive, and adjusting the playing volume according to a preset volume adjusting rule.
7. The apparatus of claim 6, further comprising a user location determination module, specifically configured to:
determining the position of a user by one or more of a television camera, a sound box distance sensor and a sofa pressure sensor at intervals of a preset time period; the user includes one user or a plurality of users.
8. The apparatus of claim 6, further comprising:
and the barrier judgment module is used for judging whether barriers exist on a moving path between the current position of each single sound box and the adjustment target position, and if so, canceling the position adjustment of the single sound boxes.
9. A computer-readable storage medium on which a computer program is stored, the program, when executed by a processor, implementing a method for volume adjustment of a smart sound box according to any one of claims 1-5.
10. An intelligent sound box, comprising:
at least one processor; and a memory communicatively coupled to the at least one processor; wherein the content of the first and second substances,
the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the method of volume adjustment for a smart sound box of any one of claims 1-5.
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| JP2003115899A (en) * | 2001-10-09 | 2003-04-18 | Nec Access Technica Ltd | Mobile radio terminal and speaking volume control method |
| CN105072553A (en) * | 2015-08-31 | 2015-11-18 | 三星电子（中国）研发中心 | Sound amplification method and sound amplification device of sound equipment |
| CN105406828A (en) * | 2014-08-22 | 2016-03-16 | 小米科技有限责任公司 | Sound equipment adjustment method and device |
| CN106708041A (en) * | 2016-12-12 | 2017-05-24 | 西安Tcl软件开发有限公司 | Intelligent sound box and intelligent sound box directional movement method and device |
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| JP2003115899A (en) * | 2001-10-09 | 2003-04-18 | Nec Access Technica Ltd | Mobile radio terminal and speaking volume control method |
| CN105406828A (en) * | 2014-08-22 | 2016-03-16 | 小米科技有限责任公司 | Sound equipment adjustment method and device |
| CN105072553A (en) * | 2015-08-31 | 2015-11-18 | 三星电子（中国）研发中心 | Sound amplification method and sound amplification device of sound equipment |
| CN106708041A (en) * | 2016-12-12 | 2017-05-24 | 西安Tcl软件开发有限公司 | Intelligent sound box and intelligent sound box directional movement method and device |
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