CN109327750B - Method, device, equipment and storage medium for displaying microphone volume change - Google Patents
Method, device, equipment and storage medium for displaying microphone volume change Download PDFInfo
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Abstract
The invention discloses a method, a device, equipment and a storage medium for displaying microphone volume change, wherein the method comprises the following steps: collecting the volume value of a microphone according to a preset frequency, and storing the current volume value and at least one previous volume value; calculating a current volume waveform curve and at least one previous volume waveform curve corresponding to the current volume value and at least one previous volume value according to a calculation model of a preset waveform curve; and displaying the current volume wave curve and at least one previous volume wave curve according to different forms. The method can draw a real-time volume change oscillogram, so that a user can clearly see the change of the current volume and the historical volume and know the change trend of the volume.
Description
Technical Field
The embodiment of the invention relates to the technical field of intelligent interactive tablet software, in particular to a method, a device, equipment and a storage medium for displaying microphone volume change.
Background
In recent years, with the change of network technologies, live webcasts are accepted by more and more mainstream people, and the live webcasts bring a brand-new visual angle experience and visual field impact to netizens with a novel style and relatively convenient service.
The anchor often needs adjust microphone volume size according to surrounding environment and the content of living broadcast at present in the live broadcast process, prevents that the volume undersize or too big from causing not good experience to the user who watches the living broadcast, leads to watching the number of people and reduces. In the existing audio and video live broadcast scheme, when a microphone collects audio, the existing scheme is only to show the volume of a left sound channel and a right sound channel, the volume information of the microphone cannot be well shown, the volume change cannot be well shown, a user can visually feel the fluctuation of the volume, the use by the user is inconvenient, and the user experience is poor.
Disclosure of Invention
In order to overcome the problems in the related art, the invention provides a method, a device, equipment and a storage medium for displaying the volume change of a microphone.
According to a first aspect of embodiments of the present invention, there is provided a method for showing a change in microphone volume, the method comprising:
collecting the volume value of a microphone according to a preset frequency, and storing the current volume value and at least one previous volume value;
calculating a current volume waveform curve and at least one previous volume waveform curve corresponding to the current volume value and at least one previous volume value according to a calculation model of a preset waveform curve;
and displaying the current volume wave curve and at least one previous volume wave curve according to different forms.
Optionally, the step of calculating a current volume waveform curve and at least one previous volume waveform curve corresponding to the current volume value and the at least one previous volume value according to a calculation model of a preset waveform curve specifically includes:
calculating a current volume value coordinate set and at least one previous volume value coordinate set corresponding to the current volume value and at least one previous volume value based on a preset reference point coordinate set and a preset coordinate conversion formula;
and calculating the current volume waveform curve and at least one previous volume waveform curve according to the current volume value coordinate set and at least one previous volume value coordinate set according to a preset waveform curve calculation formula.
Optionally, the method further includes:
and adjusting the amplitude of the current volume waveform curve and at least one previous volume waveform curve within the amplitude range of a preset waveform according to a preset coordinate conversion formula.
Optionally, the preset coordinate conversion formula is as follows: y is1WIDTH/2 < + > × (y-WIDTH/2), wherein WIDTH is the amplitude of the waveform display area, rate is the percentage of volume value, and y is the value of the ordinate of the reference point.
Optionally, the method further includes:
the preset reference point coordinate set comprises 7 reference point coordinates, the 7 reference point coordinates are divided into two groups, and the two groups of coordinates share one reference point coordinate;
three reference point coordinates in the 7 reference point coordinates are respectively a left boundary midpoint coordinate, a diagonal intersection point coordinate and a right boundary midpoint coordinate of the waveform display area, and the rest four reference point coordinates are symmetrically distributed above and below the horizontal reference line;
the current and/or previous volume waveform curve is a bezier curve;
the horizontal reference line is a straight line passing through the common reference point and parallel to the x-axis.
Optionally, the method further includes:
and when a new volume value is acquired, symmetrically transforming the current volume wave curve and at least one previous volume wave curve according to a horizontal datum line.
According to a second aspect of embodiments of the present disclosure, there is provided an apparatus for exhibiting microphone volume change, the apparatus comprising:
the system comprises a volume value acquisition module, a volume value acquisition module and a volume value storage module, wherein the volume value acquisition module is configured to acquire the volume value of a microphone according to a preset frequency and store a current volume value and at least one previous volume value;
the calculation module is configured to calculate a current volume waveform curve and at least one previous volume waveform curve corresponding to the current volume value and the at least one previous volume value according to a calculation model of a preset waveform curve;
a display module configured to display the current volume waveform curve and at least one previous volume waveform curve in different forms.
Optionally, the calculating module is configured to calculate, according to a calculation model of a preset waveform curve, a current volume waveform curve and at least one previous volume waveform curve corresponding to the current volume value and the at least one previous volume value, and specifically includes:
calculating a current volume value coordinate set and at least one previous volume value coordinate set corresponding to the current volume value and at least one previous volume value based on a preset reference point coordinate set and a preset coordinate conversion formula;
and calculating the current volume waveform curve and at least one previous volume waveform curve according to the current volume value coordinate set and at least one previous volume value coordinate set according to a preset waveform curve calculation formula.
According to a third aspect of embodiments of the present disclosure, there is provided an apparatus for exhibiting microphone volume variation, the apparatus comprising:
a processor;
a memory for storing processor-executable instructions;
wherein the processor is configured to:
collecting the volume value of a microphone according to a preset frequency, and storing the current volume value and at least one previous volume value;
calculating a current volume waveform curve and at least one previous volume waveform curve corresponding to the current volume value and at least one previous volume value according to a calculation model of a preset waveform curve;
and displaying the current volume wave curve and at least one previous volume wave curve according to different forms.
According to a fourth aspect of embodiments of the present disclosure, there is provided a computer-readable storage medium comprising:
the storage medium has stored thereon computer instructions which, when executed by the processor, carry out the steps of the method of any one of claims 1 to 6.
The technical scheme provided by the embodiment of the invention can have the following beneficial effects:
the invention acquires the volume values of the microphone at fixed time to obtain the volume values acquired at different moments, calculates the waveform curve of each volume value according to the calculation model of the preset waveform curve of each volume value, and displays the waveform curve of each volume value in different forms. The method can draw a real-time volume change oscillogram, so that a user can clearly see the change of the current volume and the historical volume and know the change trend of the volume.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention, as claimed.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
Fig. 1a is a flow chart illustrating a method of demonstrating microphone volume changes in accordance with an exemplary embodiment of the present invention.
Fig. 1b is a flow chart illustrating a method of demonstrating microphone volume changes in accordance with another exemplary embodiment of the present invention.
Fig. 2 is a waveform diagram plotted according to a first predetermined reference point coordinate set according to the present invention.
Fig. 3 is a waveform diagram plotted according to a second predetermined reference point coordinate set according to the present invention.
FIG. 4 is a schematic diagram of a waveform generated by the method of the present invention.
Fig. 5 is a block diagram illustrating an apparatus for demonstrating microphone volume changes in accordance with an exemplary embodiment of the present invention.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the invention, as detailed in the appended claims.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in this specification and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.
It is to be understood that although the terms first, second, third, etc. may be used herein to describe various information, these information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present invention. The word "if" as used herein may be interpreted as "at … …" or "when … …" or "in response to a determination", depending on the context.
The invention provides a method for displaying volume change of a microphone. As shown in fig. 1a, the method can be applied to an intelligent device, and includes the following steps 101-103:
in step 101, the volume value of the microphone is collected according to a preset frequency, and the current volume value and at least one previous volume value are saved.
The method includes the steps of turning on a microphone, collecting volume values of the microphone at set time intervals, collecting a current volume value and at least one volume value before the current volume value (hereinafter, referred to as a previous volume value) in order to enable a user to clearly see a change in volume, and storing the current volume value and the at least one previous volume value. In addition, the number of volume values saved may be preset, for example, one volume value is collected every 100ms, and 5 latest collected volume values are saved, such as a1, a2, a3, a4, and a5, where a5 is the latest volume value (i.e., the current volume value). As an example, when a new volume value is collected, the oldest collected volume value is deleted, and if a6 is collected, the value of a1 is deleted, and the latest 5 volume values, i.e., a2, a3, a4, a5, and a6, are saved.
In step 102, a current volume waveform curve and at least one previous volume waveform curve corresponding to the current volume value and the at least one previous volume value are calculated according to a calculation model of a preset waveform curve.
And calculating the volume waveform curve corresponding to the volume value by the stored volume value through a calculation model of a preset waveform curve. In different embodiments, the preset waveform curve may be in different calculation models, and the different calculation models may calculate volume waveform curves of different waveforms. The generation of the wave-shaped curve may be performed with reference to the steps shown in fig. 1a, although other ways are not excluded and are not described herein.
In step 103, the current volume profile and at least one previous volume profile are presented in different forms.
The waveform curve corresponding to each volume value is displayed in different forms, for example, the color of the waveform curve corresponding to each volume value is different, or the waveform curve line corresponding to the current volume value is thicker, and the waveform curve line corresponding to the previous volume value is thinner, so that a user can easily distinguish the waveform curve corresponding to the current volume value from the waveform curve corresponding to the previous volume value.
It can be seen from the above embodiments that the volume values of the microphones are collected at regular time to obtain the volume values obtained at different times, the waveform curve of each volume value is calculated according to the calculation model of the preset waveform curve of each obtained volume value, and then the waveform curve of each volume value is displayed in different forms. The method can draw a real-time volume change oscillogram, so that a user can clearly see the change of the current volume and the historical volume and know the change trend of the volume.
As an example, the step of calculating the current volume waveform curve and the at least one previous volume waveform curve corresponding to the current volume value and the at least one previous volume value according to the calculation model of the preset waveform curve may specifically include:
referring to fig. 1b, in step 201, a current volume value coordinate set and at least one previous volume value coordinate set corresponding to the current volume value and the at least one previous volume value are calculated based on a predetermined reference point coordinate set.
The reference point coordinate set is a set of reference point coordinates selected in advance, from which the shape of the volume coordinate curve can be substantially determined. For example, in one example, two symmetrical sets of fiducial coordinates may be selected, a first set of preset fiducial coordinates comprising 7 fiducial coordinates, as shown in fig. 2, a first set of preset fiducial coordinates comprising start1(0,0), c1(100 ), c2(100, -100), end1(200,0), c3(300, -100), c4(300,100), end2(400,0), as shown in fig. 3, and a second set of preset fiducial coordinates comprising start1(0,0), c1(100, -100), c2(100 ), end1(200,0), c3(300,100), c4(300, -100), end2(400, 0). The waveform of the first preset wave curve may be substantially determined based on the first preset reference point coordinate set, and the waveform of the second preset wave curve may be substantially determined based on the second preset reference point coordinate set.
In order to connect the two curves into an uninterrupted curve, two groups of coordinates can share one datum point coordinate, three datum points in 7 datum point coordinates are respectively a left boundary midpoint coordinate, a diagonal intersection coordinate and a right boundary midpoint coordinate of the waveform display area, the other four datum point coordinates are symmetrically distributed above and below a horizontal datum line, and the horizontal datum line is a straight line which passes through the shared datum point and is parallel to the x axis. Taking fig. 2 and 3 as an example, start1(0,0), end1(200,0), and end2(400,0) are respectively the left boundary midpoint coordinate, diagonal intersection coordinate, and right boundary midpoint coordinate of the waveform display area, and the coordinates of the four reference points c1, c2, c3, and c4 are symmetrically distributed above and below the horizontal reference line. It should be noted that the way of selecting the number of reference points and the coordinate positions does not exclude other ways.
And transforming each volume value through a preset reference point coordinate set and a preset coordinate transformation formula to obtain a volume value coordinate set corresponding to each volume value. For example, the current volume value may be added or multiplied with the value of the ordinate of each reference point in the preset reference point coordinate set, and the value of the abscissa is kept unchanged, so as to obtain a set of coordinates related to the current volume value, i.e. the set of coordinates of the current volume value corresponding to the current volume value.
In step 202, a current volume value curve and at least one previous volume value curve are calculated according to a preset waveform curve calculation formula by using the current volume value coordinate set and the at least one previous volume value coordinate set.
And (2) calculating the current volume value coordinate set obtained in step 201 according to a preset waveform curve, where the preset waveform curve calculation formula may be a third-order bezier curve formula:
B(t)＝P0(1-t)3+3P1t(1-t)2+3P2t2(1-t)+P3t3,t∈[0,1]
wherein, P0Is the starting point of the curve, P1And P2Is a control point of the curve, P3The end point of the curve. A current volume profile and at least one previous volume profile are calculated. The four points of start1, c1, c2 and end1 can draw one Bezier curve, the four points of end1, c3, c4 and end2 can draw another Bezier curve, and the two Bezier curves are smoothly connected together to form a complete wave curve.
In this embodiment, a current volume value coordinate set and at least one previous volume value coordinate set corresponding to a current volume value and at least one previous volume value are calculated according to a preset reference point coordinate set and a preset coordinate transformation formula, and then the current volume value coordinate set and the at least one previous volume value coordinate set are calculated according to a preset waveform curve calculation formula to obtain a current volume waveform curve and at least one previous volume waveform curve, as shown in fig. 4, the obtained volume waveform curves of the volume values are calculated according to the same reference point coordinate set and the same waveform curve calculation formula, and the obtained curve shapes are similar, and the amplitudes are different because the volume values are different in size.
In an alternative implementation, the amplitude of each volume value may be further compressed by a specific preset transformation formula, and the specific process may refer to the following steps:
and adjusting the amplitude of the current volume waveform curve and at least one previous volume waveform curve within the amplitude range of the preset waveform according to a preset coordinate conversion formula.
The preset coordinate conversion formula is as follows: y is1WIDTH/2 < + > × (y-WIDTH/2), wherein WIDTH is the amplitude of the waveform display area, rate is the percentage of volume value, and y is the value of the ordinate of the reference point.
The value of the ordinate of the point on the volume waveform curve is adjusted to the amplitude range of the waveform through a preset coordinate conversion formula, so that the waveform can be displayed in a preset display area.
It will be readily understood that not all embodiments necessarily require compression of the magnitude of the volume value, and therefore, in other embodiments, different coordinate transformation equations may be selected depending on the actual circumstances of the volume profile to be generated.
In an optional implementation, the method may further include:
when a new volume value is acquired, the current volume wave curve and at least one previous volume wave curve are symmetrically transformed according to a horizontal reference line.
When the current volume value is the volume value of the odd-numbered acquisition points, calculating a current volume value coordinate set and at least one previous volume value coordinate set corresponding to the current volume value and at least one previous volume value according to a first preset reference point coordinate set and a preset coordinate conversion formula, and obtaining a current volume waveform curve and at least one previous volume waveform curve according to the current volume value coordinate set and the at least one previous volume value coordinate set and a first preset waveform curve;
when the current volume value is the volume value of the even number of acquisition points, the current volume value coordinate set and at least one previous volume value coordinate set corresponding to the current volume value and at least one previous volume value are calculated according to a second preset reference point coordinate set and a preset coordinate conversion formula, and then the current volume waveform curve and at least one previous volume waveform curve are obtained by using the current volume value coordinate set and the at least one previous volume value coordinate set according to a second preset waveform curve.
When a new volume value is acquired, the earliest acquired volume value is deleted, so that the original odd-numbered acquired volume values are changed into the even-numbered acquired volume values, and after the same volume value is updated from the odd-numbered volume value to the even-numbered volume value, two waveforms with different directions are obtained according to two groups of symmetrical reference coordinates, and the waveform change is more obvious.
As shown in fig. 5, the apparatus for showing the change of the microphone volume comprises: a volume value acquisition module 51, a calculation module 52 and a display module 53.
A volume value collecting module 51 configured to collect volume values of the microphones at a preset frequency and save a current volume value and at least one previous volume value;
a calculating module 52 configured to calculate a current volume waveform curve and at least one previous volume waveform curve corresponding to the current volume value and the at least one previous volume value according to a calculation model of a preset waveform curve;
and a display module 53 configured to display the current volume profile and at least one previous volume profile in different forms.
As can be seen from the above embodiments, the sound volume value of the microphone is collected by the sound volume value collection module 51 at regular time to obtain sound volume values obtained at different times, the waveform curve of each sound volume value is calculated according to the calculation model of the preset waveform curve in the calculation module 52, and then the waveform curve of each sound volume value is displayed in different forms by the display module 53. The device can draw a real-time volume change oscillogram, so that a user can clearly see the change of the current volume and the historical volume and know the change trend of the volume.
A device for displaying volume change of a microphone, a calculating module configured to calculate a current volume waveform curve and at least one previous volume waveform curve corresponding to a current volume value and at least one previous volume value according to a calculation model of a preset waveform curve, specifically comprising:
calculating a current volume value coordinate set and at least one previous volume value coordinate set corresponding to the current volume value and the at least one previous volume value based on a preset reference point coordinate set;
and calculating the current volume waveform curve and at least one previous volume waveform curve according to the current volume value coordinate set and at least one previous volume value coordinate set according to a preset waveform curve calculation formula.
Correspondingly, the invention also provides equipment for displaying the volume change of the microphone, which comprises a processor; a memory for storing processor-executable instructions; wherein the processor is configured to:
collecting the volume value of a microphone according to a preset frequency, and storing the current volume value and at least one previous volume value;
calculating a current volume waveform curve and at least one previous volume waveform curve corresponding to the current volume value and the at least one previous volume value according to a calculation model of a preset waveform curve;
and displaying the current volume waveform curve and at least one previous volume waveform curve according to different forms.
For the device embodiments, since they substantially correspond to the method embodiments, reference may be made to the partial description of the method embodiments for relevant points. The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and the parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules can be selected according to actual needs to achieve the purpose of the scheme of the invention. One of ordinary skill in the art can understand and implement it without inventive effort.
In an exemplary embodiment, a non-transitory computer-readable storage medium comprising instructions, such as a memory comprising instructions, executable by a processor of an apparatus to perform the above-described method is also provided. For example, the non-transitory computer readable storage medium may be a ROM, a Random Access Memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like.
A non-transitory computer readable storage medium, instructions in the storage medium, when executed by a processor of a terminal, enable the terminal to perform the above-described method.
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 limited only by the appended claims.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions, improvements, etc. within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (8)
1. A method for demonstrating microphone volume changes, comprising:
collecting the volume value of a microphone according to a preset frequency, and storing the current volume value and at least one previous volume value;
calculating a current volume value coordinate set and at least one forward volume value coordinate set corresponding to the current volume value and at least one previous volume value according to a calculation model of a preset waveform curve and based on the same preset reference point coordinate set and the same preset coordinate conversion formula, and calculating a current volume waveform curve and at least one previous volume waveform curve corresponding to the current volume value and at least one previous volume value according to the same preset waveform curve calculation formula;
and simultaneously displaying the current volume wave curve and at least one previous volume wave curve in the same display area according to different forms.
2. The method for demonstrating microphone volume change according to claim 1,
the preset coordinate conversion formula is used for adjusting the amplitude of the current volume waveform curve and at least one previous volume waveform curve within the amplitude range of a preset waveform.
3. According to claimThe method for showing the volume change of the microphone, as claimed in claim 2, is characterized in that the preset coordinate conversion formula is: y is1WIDTH/2 < + > × (y-WIDTH/2), wherein WIDTH is the amplitude of the waveform display area, rate is the percentage of volume value, and y is the value of the ordinate of the reference point.
4. The method of claim 1 for demonstrating microphone volume change, comprising:
the preset reference point coordinate set comprises 7 reference point coordinates, the 7 reference point coordinates are divided into two groups, and the two groups of coordinates share one reference point coordinate;
three reference point coordinates in the 7 reference point coordinates are respectively a left boundary midpoint coordinate, a diagonal intersection point coordinate and a right boundary midpoint coordinate of the waveform display area, and the rest four reference point coordinates are symmetrically distributed above and below the horizontal reference line;
the current and/or previous volume waveform curve is a bezier curve;
the horizontal reference line is a straight line passing through the common reference point and parallel to the x-axis.
5. The method of claim 4, wherein the method further comprises:
and when a new volume value is acquired, symmetrically transforming the current volume wave curve and at least one previous volume wave curve according to a horizontal datum line.
6. An apparatus for demonstrating microphone volume changes, comprising:
the system comprises a volume value acquisition module, a volume value acquisition module and a volume value storage module, wherein the volume value acquisition module is configured to acquire the volume value of a microphone according to a preset frequency and store a current volume value and at least one previous volume value;
a calculation module configured to calculate a current volume value coordinate set and at least one forward volume value coordinate set corresponding to the current volume value and at least one previous volume value based on the same preset reference point coordinate set and the same preset coordinate conversion formula according to a calculation model of a preset waveform curve, and then calculate a current volume waveform curve and at least one previous volume waveform curve corresponding to the current volume value and at least one previous volume value according to the same preset waveform curve calculation formula;
and the display module is configured to simultaneously display the current volume wave curve and at least one previous volume wave curve in different forms in the same display area.
7. An apparatus for exhibiting microphone volume changes, comprising:
a processor;
a memory for storing processor-executable instructions;
wherein the processor is configured to:
collecting the volume value of a microphone according to a preset frequency, and storing the current volume value and at least one previous volume value;
calculating a current volume value coordinate set and at least one forward volume value coordinate set corresponding to the current volume value and at least one previous volume value according to a calculation model of a preset waveform curve and based on the same preset reference point coordinate set and the same preset coordinate conversion formula, and calculating a current volume waveform curve and at least one previous volume waveform curve corresponding to the current volume value and at least one previous volume value according to the same preset waveform curve calculation formula;
and simultaneously displaying the current volume wave curve and at least one previous volume wave curve in the same display area according to different forms.
8. A computer-readable storage medium having stored thereon computer instructions, which when executed by a processor, perform the steps of the method of any one of claims 1 to 5.
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