CN112449278A - Method, device and equipment for automatically calibrating delay output sound and storage medium - Google Patents
Method, device and equipment for automatically calibrating delay output sound and storage medium Download PDFInfo
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- CN112449278A CN112449278A CN201910827477.XA CN201910827477A CN112449278A CN 112449278 A CN112449278 A CN 112449278A CN 201910827477 A CN201910827477 A CN 201910827477A CN 112449278 A CN112449278 A CN 112449278A
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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 invention discloses a method, a device, equipment and a storage medium for automatically calibrating delayed output sound. The method comprises the following steps: continuously sending a first fixed frequency signal with a preset frequency to a display device within a set time range t; collecting a first fixed frequency signal, and simultaneously recording the time value of analyzing the first fixed frequency signal for the first time as t0 and the time value of disappearance of the first fixed frequency signal as t 1; after the first fixed-frequency sound signal is sent for the designated time t', a second fixed-frequency signal with the predetermined frequency is sent to the power amplifier; collecting a second fixed frequency signal, and recording the time value of analyzing the second fixed frequency signal for the first time as t 2; calculating the offset delta t of sound emitted between the power amplifier equipment and the display device as t2-t0-t', and adjusting the delay value of the sound emitted by the power amplifier equipment according to the offset; the invention can dynamically adjust the sound output by the power amplifier equipment to be consistent with the sound output by the display device according to the offset, thereby providing convenience for users.
Description
Technical Field
The present invention relates to the field of display devices, and in particular, to a method, an apparatus, a device, and a storage medium for automatically calibrating a delayed output sound.
Background
With the continuous pursuit of users for tone quality, the tone quality brought by the sound or the loudspeaker of the display device is gradually no longer satisfied, and a power amplifier device is connected externally through the ARC interface or the SPDIF interface in many cases, so as to obtain better tone quality enjoyment. Although the prior display device is provided with the default output delay value after sound output, the power amplifier device is of various types, the sound is output to the power amplifier device at the display device, the sound is received by the power amplifier device and then decoded to be played, and certain time is consumed for playing after the sound is output to the sound decoding, so that the sound emitted by the power amplifier device is asynchronous with the sound output by the display device, and the use by a user is inconvenient.
It can be seen that the prior art is still in need of improvement and development.
Disclosure of Invention
The invention aims to provide a method, a device, equipment and a storage medium for automatically calibrating time-delay output sound, and aims to solve the problem that sound emitted by power amplifier equipment is asynchronous with sound output by a display device due to different decoding time consumption of different power amplifier equipment in the prior art.
The specific technical scheme is as follows:
a method of automatically calibrating a delayed output sound, comprising:
A. continuously sending a first fixed frequency signal with a preset frequency to a display device within a set time range t;
B. collecting the first fixed frequency signal, and simultaneously recording the time value of analyzing the first fixed frequency signal for the first time as t0 and the time value of disappearance of the first fixed frequency signal as t 1;
C. after the first fixed-frequency sound signal is sent for the designated time t', a second fixed-frequency signal with the predetermined frequency is sent to the power amplifier;
D. collecting the second constant frequency signal, and recording the time value of analyzing the second constant frequency signal for the first time as t 2;
E. and calculating the offset delta t of the sound emitted between the power amplifier equipment and the display device as t2-t0-t', and adjusting the delay value of the sound emitted by the power amplifier equipment according to the offset.
The method for automatically calibrating delayed output sound, wherein before the step a, the method further comprises:
and detecting whether the display device is connected with the power amplifier equipment, wherein the display device is successfully connected with the power amplifier equipment and receives a sound calibration action instruction to collect the first fixed-frequency signal or the second fixed-frequency signal.
The method for automatically calibrating delayed output sound, wherein the step B further comprises:
and calculating the difference value between t1 and t0, and judging whether the first fixed frequency signal is correct or not according to the difference value.
The method for automatically calibrating delayed output sound, wherein the calculating a difference between t1 and t0, and determining whether the first constant frequency signal is correct according to the difference, comprises:
and judging the difference value between t1 and t0, if t1-t0 is equal to t, judging that the correct first fixed frequency signal is acquired, and turning to the step C, otherwise, repeating the steps A to B.
The method for automatically calibrating delayed output sound, wherein the collecting the first fixed frequency signal, comprises:
and sending the acquired first fixed frequency signal and analyzing and processing the first fixed frequency signal.
The method for automatically calibrating delayed output sound, wherein the collecting the second fixed frequency signal, comprises:
and sending the second fixed-frequency signal obtained by collection and analyzing and processing the second fixed-frequency signal.
In step E, the adjusting the delay value of the sound generated by the power amplifier device according to the offset includes:
dynamically adjusting the delay value of the sound output by the power amplifier equipment according to the offset to be consistent with the sound output by the display device;
and sending out the sound with the changed delay value through the power amplifier.
The method for automatically calibrating delayed output sound, wherein after the step E, the method further comprises:
and traversing all the sound data of different frequency types in the power amplifier equipment and the display device, and repeating the steps A to E.
An apparatus for automatically calibrating delayed output sounds, comprising:
the sound acquisition module is used for acquiring a first fixed frequency signal sent by the display device and a second fixed frequency signal sent by the power amplifier equipment in real time and transmitting the first fixed frequency signal and the second fixed frequency signal to the sound analysis module;
the sound analysis module is used for identifying the frequencies of the first fixed frequency signal and the second fixed frequency signal;
the test signal generation module is used for generating sound signals with different frequencies and sending the sound signals to the display device or the power amplifier equipment;
and the sound time delay automatic calibration module is used for calculating the offset quantity delta t of the sound emitted between the power amplifier equipment and the display device, which is t2-t0-t', and adjusting the time delay value of the sound emitted by the power amplifier equipment according to the offset quantity.
An apparatus for automatically calibrating delayed output sound, comprising a memory, and one or more programs, wherein the one or more programs are stored in the memory, and wherein the one or more programs configured to be executed by the one or more processors comprise instructions for performing the method of any of the above.
A storage medium having stored thereon a plurality of instructions, wherein the instructions are adapted to be loaded and executed by a processor to implement any of the methods of automatically calibrating a time-delayed output sound.
Compared with the prior art, the embodiment of the invention has the following advantages:
according to the method provided by the embodiment of the invention, after different fixed frequency signals sent by the display device and the power amplifier are analyzed and compared, the offset between the sound sent by the display device and the sound sent by the power amplifier is calculated, the delay value of the audio data sent by the display device is dynamically adjusted according to the offset, and the corresponding audio data is sent out through the power amplifier.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic flow chart illustrating an implementation process of a method for automatically calibrating a delayed output to a power amplifier sound by a display device according to the present application;
FIG. 2 is a schematic diagram of a preferred query interface for performing voice calibration in accordance with the preferred embodiment of the present application;
fig. 3 is a schematic diagram illustrating a preferred embodiment of an auto-calibrating time-delay output audio device according to the present invention.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, fig. 1 is a flowchart illustrating an implementation of a preferred embodiment of a method for automatically calibrating a delay time for outputting a power amplifier sound, the method specifically includes the following steps:
s100, continuously sending a first fixed frequency signal with a preset frequency to a display device within a set time range t.
During specific implementation, a first fixed frequency signal is sent to a display device, the first fixed frequency signal distinguishes the difference between the sound sent by the display device and the sound sent by the power amplifier device, so that the offset of the sound sent by the power amplifier device and the sound sent by the display device can be conveniently calculated subsequently, and the sound output by the power amplifier device can be dynamically adjusted to be consistent with the sound output by the display device according to the offset; for example, the first fixed frequency signal is continuously transmitted to the display device within 2 s.
In practical situations, it may be that the display device is not necessarily externally connected with a power amplifier, and therefore, before the display device sends the first fixed frequency signal, it is detected whether the display device is successfully connected with any power amplifier, where if the display device is not successfully connected with the power amplifier, such a situation is out of consideration in the present application; and if the display device is successfully connected with power amplifier equipment, receiving a sound calibration action command to acquire the first fixed-frequency signal or the second fixed-frequency signal. In one implementation, after the display device is successfully connected to any power amplifier device, a corresponding inquiry interface pops up on a display screen of the display device, for example, the display content of the inquiry interface shown in fig. 2, if the user selects the "yes" control, the method for automatically calibrating the delayed output sound of the present invention is executed, and if the "no" control is selected, the subsequent sound calibration action is not executed for the display device and the power amplifier device; of course, this is only a preferred embodiment of the present invention, and is not a limitation and a fixation of the present invention, and different query interfaces may be specifically configured according to actual situations.
It should be noted that the display device in the present invention is an electronic device with a display function, such as a television, a computer, etc., which can be successfully connected to a power amplifier device.
S200, collecting the first fixed frequency signal, and simultaneously recording the time value of analyzing the first fixed frequency signal for the first time as t0 and the time value of disappearance of the first fixed frequency signal as t 1.
In specific implementation, after a user confirms the method for automatically calibrating the display device and outputting the delayed sound, the function of collecting the sound emitted by the display device and the power amplifier equipment is started, and the collected sound is analyzed after collection; because the sound emitted by the display device and the sound emitted by the power amplifier equipment are distinguished by the first fixed frequency signal, the sound can be obtained by collecting the first fixed frequency signal; similarly, the collected first fixed frequency signal is sent to a designated processing part for analysis and processing operation; and simultaneously recording the time value of the first fixed frequency signal analyzed for the first time as t0 and the time value of the first fixed frequency signal disappeared after the analysis as t1, in this embodiment, the analysis processing operation refers to performing audio frequency measurement on the collected signal to determine whether the collection is correct and to measure the duration.
Judging whether the display device receives a correct sound signal or not according to the analysis of the first fixed frequency signal, specifically, judging whether the correct first fixed frequency signal is obtained or not according to the difference value by calculating the difference value between t1 and t 0; if t1-t0 is t, it is determined that the first fixed frequency signal is correctly acquired, and the process goes to step S300, otherwise, the process is repeated from step S100 to step S200.
S300, after the first fixed-frequency sound signal is sent for the designated time t', a second fixed-frequency signal with the preset frequency is sent to the power amplifier.
In specific implementation, in order to distinguish the sound emitted by the display device from the power amplifier device, a second fixed-frequency signal with a frequency different from that of the first fixed-frequency signal is sent to the power amplifier device, specifically, a time period t 'with a specified duration is set, and the second fixed-frequency signal is sent to the power amplifier device immediately after the time period t'; for example, after sending the first fixed frequency signal to the display device 5s, the second fixed frequency signal is sent to the power amplifier.
S400, collecting the second constant frequency signal, and recording the time value of analyzing the second constant frequency signal for the first time as t 2.
In specific implementation, because the offset of the sound emitted by the power amplifier and the display device needs to be obtained, the delay value which needs to be adjusted synchronously between the power amplifier and the loudspeaker is calculated according to the offset, and finally the effect that the sound output by the power amplifier and the sound output by the display device are kept consistent according to the offset is achieved; specifically, the invention respectively obtains the appearance and disappearance moments of the first fixed-frequency sound signal, the appearance of the second fixed-frequency sound signal and the time difference value of the first fixed-frequency sound signal and the second fixed-frequency sound signal, and then the offset of the sound emitted by the power amplifier and the display device can be obtained; therefore, it is necessary to acquire the second fixed frequency signal obtained by the acquisition, send the second fixed frequency signal to be processed and analyzed after the acquisition, and record a time value of the analysis processing on the second fixed frequency signal as t 2.
And S500, calculating the offset delta t of the sound emitted between the power amplifier equipment and the display device, namely t2-t0-t', and adjusting the delay value of the sound emitted by the power amplifier equipment according to the offset.
During concrete implementation, in order to calculate the offset between the sound emitted by the display device and the sound emitted by the loudspeaker, the time difference between the first fixed-frequency signal and the second fixed-frequency signal needs to be obtained, and the time when the two fixed-frequency sound signals appear and disappear respectively, at this moment, the offset between the power amplifier and the display device, which is the sound emitted by the power amplifier, can be calculated as follows: t2-t 0-t'; the delay value of the sound emitted by the power amplifier equipment can be adjusted according to the calculated offset, so that the delay value is synchronous with the sound emitted by the display device through the loudspeaker/sound box, namely, the effect that the sound output by the power amplifier equipment is kept consistent with the sound output by the display device can be dynamically adjusted according to the offset.
In practical situations, the sound emitted by the display device may have different frequency formats, and therefore, in order to achieve the effect that the sound output by the power amplifier device and the sound output by the display device can be dynamically adjusted according to the offset to keep consistent, it is further required to traverse all the sound data of different frequency types in the power amplifier device and the display device after step S500, that is, repeat steps S100-S500.
In summary, the present invention provides a method for automatically calibrating delayed output to power amplifier sound by a display device, wherein different audio data sent to the display device and the power amplifier device are analyzed and compared by sound signals with corresponding frequencies, and then an offset between the audio data sent by the display device and the audio data sent by the power amplifier device is obtained by calculation, and a delay value of the audio data sent by the power amplifier device is dynamically adjusted according to the offset.
Based on the above method, the present invention further provides a device for automatically calibrating time delay output to a power amplifier sound, referring to fig. 3, the device includes a test signal generating module 10, a sound collecting module 20, a sound analyzing module 30, and a sound time delay automatic calibrating module 40, wherein the test signal generating module 10 is configured to generate sound signals with different frequencies and send the sound signals to the power amplifier device 50 or the display device 60; a sound collection module 20 collects a first fixed frequency signal sent by the display device and a second fixed frequency signal sent by the power amplifier equipment in real time, and transmits the first fixed frequency signal and the second fixed frequency signal to the sound analysis module; the sound analysis module respectively identifies the frequencies of the first fixed-frequency signal and the second fixed-frequency signal, records a time value when the first fixed-frequency signal is analyzed and a time value when the first fixed-frequency signal disappears, and a time value when the second fixed-frequency signal is analyzed, calculates the offset of sound between the power amplifier equipment and the display device according to the time values corresponding to the first fixed-frequency signal and the second fixed-frequency signal, and sends the offset to the sound delay automatic calibration module; the sound time delay automatic calibration module is used for calculating the offset delta t of sound emitted between the power amplifier equipment and the display device, namely t2-t0-t', adjusting the time delay value of the sound emitted by the power amplifier equipment according to the offset, and adjusting the sound output of the display device to be consistent with the output of the power amplifier equipment according to the time delay value, so that the sound output by the power amplifier equipment can be dynamically adjusted according to the offset to be consistent with the sound output by the display device, and convenience is provided for users.
The automatic calibration delay provided by the invention is output to a power amplifier sound device to execute the method provided by the embodiment, for example, the method comprises the following steps:
s100, continuously sending a first fixed frequency signal with a preset frequency to the display device within a set time range t;
s200, collecting the first fixed frequency signal, and simultaneously recording the time value of analyzing the first fixed frequency signal for the first time as t0 and the time value of disappearance of the first fixed frequency signal as t 1;
s300, after the first fixed-frequency sound signal is sent for the designated time t', a second fixed-frequency signal with the preset frequency is sent to the power amplifier equipment;
s400, collecting the second fixed frequency signal, and simultaneously recording the time value of analyzing the second fixed frequency signal for the first time as t 2;
s500, calculating the offset delta t of the sound emitted between the power amplifier equipment and the display device as t2-t0-t', and adjusting the delay value of the sound emitted by the power amplifier equipment according to the offset, so that the sound output by the power amplifier equipment can be dynamically adjusted to be consistent with the sound output by the display device according to the offset, and convenience is brought to users.
It should be noted that, since the apparatus provided in the embodiment of the present invention is based on the same concept as the method embodiment of the present invention, the technical effect thereof is the same as the method embodiment of the present invention, and specific contents thereof can be referred to the description in the method embodiment of the present invention, and are not described herein again.
Embodiments of the present invention also provide an apparatus for automatically calibrating a delayed output sound, comprising a memory, and one or more programs, wherein the one or more programs are stored in the memory, and the one or more programs configured to be executed by the one or more processors include methods for performing the methods provided by the embodiments.
The embodiment of the invention also provides a storage medium, wherein the storage medium stores computer instructions, and the computer instructions enable a computer to execute the method provided by each embodiment.
In summary, the present invention provides a method, an apparatus, a device and a storage medium for automatically calibrating a delayed output sound, wherein the method includes: continuously sending a first fixed frequency signal with a preset frequency to the display device within a set time range t; collecting the first fixed frequency signal, and simultaneously recording the time value of analyzing the first fixed frequency signal for the first time as t0 and the time value of disappearance of the first fixed frequency signal as t 1; after the first fixed-frequency sound signal is sent for the designated time t', a second fixed-frequency signal with the preset frequency is sent to the power amplifier; collecting the second constant frequency signal, and recording the time value of analyzing the second constant frequency signal for the first time as t 2; and calculating the offset delta t of the sound emitted between the power amplifier equipment and the display device as t2-t0-t', and adjusting the delay value of the sound emitted by the power amplifier equipment according to the offset, so that the sound output by the power amplifier equipment can be dynamically adjusted to be consistent with the sound output by the display device according to the offset, and convenience is provided for users. The invention respectively sends fixed frequency signals with different frequencies to the reality device and the power amplifier, distinguishes and identifies the sound sent by the display device and the power amplifier through the fixed frequency signals, simultaneously respectively records the time values of the fixed frequency signals which are sent to the display device and the power amplifier and analyzed after being collected, calculates the offset between the sound sent by the display device and the power amplifier according to the time values, and adjusts the delay numerical value of the sound output by the display device according to the offset.
Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This invention is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.
It will be understood that the invention is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the invention is only limited by the appended claims
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. A method for automatically calibrating delayed output sounds, comprising:
A. continuously sending a first fixed frequency signal with a preset frequency to a display device within a set time range t;
B. collecting the first fixed frequency signal, and simultaneously recording the time value of analyzing the first fixed frequency signal for the first time as t0 and the time value of disappearance of the first fixed frequency signal as t 1;
C. after the first fixed-frequency sound signal is sent for the designated time t', a second fixed-frequency signal with the predetermined frequency is sent to the power amplifier;
D. collecting the second constant frequency signal, and recording the time value of analyzing the second constant frequency signal for the first time as t 2;
E. and calculating the offset delta t of the sound emitted between the power amplifier equipment and the display device as t2-t0-t', and adjusting the delay value of the sound emitted by the power amplifier equipment according to the offset.
2. The method for automatically calibrating a delayed output sound according to claim 1, further comprising, before said a step:
and detecting whether the display device is connected with the power amplifier equipment, wherein the display device is successfully connected with the power amplifier equipment and receives a sound calibration action instruction to collect the first fixed-frequency signal or the second fixed-frequency signal.
3. The method for automatically calibrating a delayed output sound according to claim 1, wherein said step B further comprises:
and calculating the difference value between t1 and t0, and judging whether the first fixed frequency signal is correct or not according to the difference value.
4. The method of claim 3, wherein the calculating a difference between t1 and t0 and determining whether the first constant frequency signal is correct according to the difference comprises:
and judging the difference value between t1 and t0, if t1-t0 is equal to t, judging that the correct first fixed frequency signal is acquired, and turning to the step C, otherwise, repeating the steps A to B.
5. The method of claim 1, wherein the collecting the first fixed frequency signal comprises:
and sending the acquired first fixed frequency signal and analyzing and processing the first fixed frequency signal.
6. The method of claim 1, wherein the collecting the second fixed-frequency signal comprises:
and sending the second fixed-frequency signal obtained by collection and analyzing and processing the second fixed-frequency signal.
7. The method according to claim 1, wherein in step E, the adjusting the delay value of the sound emitted from the power amplifier device according to the offset includes:
according to the offset, dynamically adjusting the delay value of the sound output by the power amplifier equipment to be consistent with the sound output by the display device;
and sending out the sound with the changed delay value through the power amplifier.
8. An apparatus for automatically calibrating delayed output sounds, comprising:
the sound acquisition module is used for acquiring a first fixed frequency signal sent by the display device and a second fixed frequency signal sent by the power amplifier equipment in real time and transmitting the first fixed frequency signal and the second fixed frequency signal to the sound analysis module;
the sound analysis module is used for identifying the frequencies of the first fixed frequency signal and the second fixed frequency signal;
the test signal generation module is used for generating sound signals with different frequencies and sending the sound signals to the display device or the power amplifier equipment;
and the sound time delay automatic calibration module is used for calculating the offset quantity delta t of the sound emitted between the power amplifier equipment and the display device, which is t2-t0-t', and adjusting the time delay value of the sound emitted by the power amplifier equipment according to the offset quantity.
9. An apparatus for automatically calibrating delayed output sound, comprising a memory, and one or more programs, wherein the one or more programs are stored in the memory, and wherein the one or more programs configured to be executed by the one or more processors comprise instructions for performing the method of any of claims 1-7.
10. A storage medium having stored thereon a plurality of instructions adapted to be loaded and executed by a processor to perform the method of automatically calibrating time delayed output sounds according to any one of claims 1 to 7.
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