CN107967921A - The volume adjusting method and device of conference system - Google Patents
The volume adjusting method and device of conference system Download PDFInfo
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- CN107967921A CN107967921A CN201711262051.1A CN201711262051A CN107967921A CN 107967921 A CN107967921 A CN 107967921A CN 201711262051 A CN201711262051 A CN 201711262051A CN 107967921 A CN107967921 A CN 107967921A
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- G—PHYSICS
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- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
- G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
- G10L21/0316—Speech enhancement, e.g. noise reduction or echo cancellation by changing the amplitude
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Abstract
The invention discloses the volume adjusting method and device of a kind of conference system, wherein, method comprises the following steps：Obtain the voice data that conference terminal transmits in conference system；Obtain the volume of the voice data and default volume；Volume and the default volume using the voice data, determine volume change value；According to the magnitude relationship between the volume change value and max volume yield value, volume adjustment amount is determined；The volume of the voice data is adjusted according to the volume adjustment amount.By the maxgain value for setting volume, for avoiding sound mask effect caused by volume adjustment, enable the voice data that conference terminal transmits in conference system to be smoothed out meeting audio mixing, be not in the situation that loud noise masks off small voice, and clear sound；It ensure that other function modules of conference system are unaffected during volume adjustment, improve the practicality of system at the same time.
Description
Technical field
The present invention relates to communication and mobile internet technical field, and in particular to a kind of volume adjusting method of conference system
And device.
Background technology
With social progress, science and technology development, it is interpersonal link up it is more and more frequent, and link up mode also from
Mail develop into phone arrive again video conferencing system slowly occur to change.But in addition to mail, held in remaining communication way
Carry information is mostly Voice ＆ Video data, regardless of whether being audio or video, foot is lifted in sound status in communication
Weight.
By taking video conferencing system as an example, conference system large-scale at present is offer service using central point as processing center
Form.During video conference, substantial amounts of voice data is transferred to the processing that central point processor carries out audio mixing, these sounds
The height that the volume of frequency evidence has has low, this may have relation with the volume of spokesman or the collection of microphone.However, these are high
Low different volume just occurs audio masking effect in audio mixing, i.e. the audio of louder volume by the audio masking of amount of bass, from
And cause the audio of amount of bass can not be heard by participant, it can thus miss information.
In order to solve the above technical problems, existing conference system has employed the automatic gain for volume, i.e., by certainly
What dynamic gain was fixed is adjusted to sound some size, but is unified size by the volume adjustment of all audios, can cause
Central point can not differentiate the sender of each voice data, so as to make troubles the audio mixing in later stage.
In addition, China Patent Publication No. is in the patent document of CN1885711A, one kind is disclosed by decoded
Data carry out the division of volume range, and the automatic gain side of the volume adjustment corresponding to each scope is carried out according to division result
Method.The emphasis of automatic gain method disclosed in it is the volume range for how distinguishing decoded data, not to these
How the data of different volume ranges, which are sized, is made description, it is possible to can cause the sound of each volume range after adjustment
Audio masking effect occurs between frequency signal, influences the treatment effect of audio.
The content of the invention
In view of this, it is existing to solve an embodiment of the present invention provides the volume adjusting method and device of a kind of conference system
There is audio masking effect in the audio signal for having different volumes in technology, so that the problem of causing audio-frequency information to be lost.
First aspect present invention provides a kind of volume adjusting method of conference system, comprises the following steps：
Obtain the voice data that conference terminal transmits in conference system；
Obtain the volume of the voice data and default volume；
Volume and the default volume using the voice data, determine volume change value；
According to the magnitude relationship between the volume change value and max volume yield value, volume adjustment amount is determined；
The volume of the voice data is adjusted according to the volume adjustment amount.
Alternatively, the volume using the voice data and the default volume, determine volume change value, including：
Calculate the volume of the voice data and the difference of default volume；
The volume change value is determined using the difference.
Alternatively, the volume change value is calculated using equation below：
Va=a1×Vg 2+a2×Vg+a3；
Wherein, VaFor the volume change value；VgFor the difference of the volume and default volume of the voice data；a1, a2, a3
For constant.
Alternatively, the magnitude relationship according between the volume change value and max volume yield value determines sound
Regulated quantity is measured, including：
Judge whether the volume change value is more than the max volume yield value；
When the volume change value is more than the max volume yield value, the volume adjustment amount is the max volume
Yield value；
When the volume change value is less than or equal to the max volume yield value, the volume adjustment amount is the sound
Measure changing value.
Alternatively, the volume of the voice data is calculated using equation below：
Wherein, VcFor the volume of the voice data；ViFor the sampled value sampled to the voice data；N is sampling
The number of point.
Second aspect of the present invention provides a kind of volume adjustment device of conference system, including：
First acquisition unit, for obtaining the voice data that conference terminal transmits in conference system；
Second acquisition unit, for the volume for obtaining the voice data and default volume；
First determination unit, for the volume using the voice data and the default volume, determines that volume becomes
Change value；
Second determination unit, for according to the magnitude relationship between the volume change value and max volume yield value,
Determine volume adjustment amount；
Sound volume regulation unit, is adjusted the volume of the voice data according to the volume adjustment amount.
Alternatively, first determination unit includes：
Computation subunit, for calculating the volume of the voice data and the difference of default volume；
Determination subelement, for determining the volume change value using the difference.
Alternatively, the volume change value is calculated using equation below：
Va=a1×Vg 2+a2×Vg+a3；
Wherein, VaFor the volume change value；VgFor the difference of the volume and default volume of the voice data；a1, a2, a3
For constant.
Third aspect present invention provides a kind of media platform, including at least one processor；And with it is described at least one
The memory of processor communication connection；Wherein, the memory storage has the instruction that can be performed by one processor, described
Instruction is performed by least one processor, so that at least one processor performs first aspect present invention or first party
The volume adjusting method of conference system any one of face.
Fourth aspect present invention provides a kind of non-transient computer readable storage medium storing program for executing, and the non-transient computer is readable to deposit
Storage media stores computer instruction, and the computer instruction is used to make computer perform in first aspect present invention or first aspect
The volume adjusting method of any one of them conference system.
Technical solution provided by the invention, has the following advantages that：
1. the volume adjusting method of conference system provided in an embodiment of the present invention, by by the tune of the volume of voice data
Section is divided into two parts：Volume change value and volume adjustment amount, when preventing from being adjusted only for volume change value, regulated quantity mistake
Secondary sound mask effect caused by big；Maxgain value i.e. of the invention by setting volume, for avoiding volume adjustment
Caused sound mask effect so that the voice data that conference terminal transmits in conference system can be smoothed out meeting and mix
Sound, is not in the situation that loud noise masks off small voice, and clear sound；It ensure that the meeting during volume adjustment at the same time
Other function modules of conference system are unaffected, improve the practicality of system.
2. the volume adjusting method of conference system provided in an embodiment of the present invention, by by the volume of voice data with it is default
After volume is compared, determine volume change value, i.e., by the scope for relatively confirming volume adjustment for the first time with default volume,
Adjusting basis is provided for accurate volume adjustment so that the volume after adjusting disclosure satisfy that the auditory perception of participant, improve
The tonequality and effect of meeting of conference system.
3. the volume adjusting method of conference system provided in an embodiment of the present invention, by the basis of volume change value,
Determine volume adjustment amount so that the voice data after adjusting can smoothly enter meeting audio mixing, be not in audio masking effect.
4. the volume adjusting method of conference system provided in an embodiment of the present invention, voice data is determined by sample mode
Volume, easy to follow-up analysis, simplify calculation amount, improve computational accuracy.
5. the volume adjustment device of conference system provided in an embodiment of the present invention, by setting the maxgain value of volume,
For avoiding audio masking effect caused by volume adjustment so that the voice data that conference terminal transmits in conference system can
Meeting audio mixing is smoothed out, is not in the situation that loud noise masks off small voice, and clear sound；It ensure that at the same time in sound
Other function modules of conference system are unaffected during amount is adjusted, and improve the practicality of system.
Brief description of the drawings
The features and advantages of the present invention can be more clearly understood by reference to attached drawing, attached drawing is schematically without that should manage
Solve to carry out any restrictions to the present invention, in the accompanying drawings：
Fig. 1 shows a structure diagram specifically illustrated of application scenarios in the embodiment of the present invention；
Fig. 2 shows the method stream that one of the volume adjusting method of conference system in the embodiment of the present invention 1 specifically illustrates
Cheng Tu；
Fig. 3 shows the method stream that one of the volume adjusting method of conference system in the embodiment of the present invention 2 specifically illustrates
Cheng Tu；
Fig. 4 shows the method stream that one of the volume adjusting method of conference system in the embodiment of the present invention 3 specifically illustrates
Cheng Tu；
Fig. 5 shows a structure chart specifically illustrated of the volume adjustment device of conference system in the embodiment of the present invention 4；
Fig. 6 shows a structure chart specifically illustrated of media platform in the embodiment of the present invention 5.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, the technical solution in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
Part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those skilled in the art are not having
All other embodiments obtained under the premise of creative work are made, belong to the scope of protection of the invention.
In the description of the present invention, it is necessary to which explanation, term " first ", " second ", " the 3rd " are only used for description purpose,
And it is not intended that instruction or hint relative importance.
As long as in addition, technical characteristic involved in invention described below different embodiments non-structure each other
It can be combined with each other into conflict.
Fig. 1 shows the application scenarios schematic diagram of the embodiment of the present invention.Conference system includes end side and media platform, its
Middle terminal can be more.Shown a case that in Fig. 1 including two conference terminals, i.e., conference system includes media platform, the
One terminal and second terminal.Wherein, first terminal and second terminal can be audio code stream acquisition terminals, such as smart mobile phone,
The mobile clients such as tablet computer or dedicated audio/video conference system terminal.
Under normal conditions, the course of work of conference system is as follows, and end side gathers the voice data of participant in real time, will
It is sent to media platform after being converted into audio frame encapsulation, after media platform carries out audio frequency process to the audio frame received, hair
Give other-end.
Embodiment 1
The present embodiment provides a kind of volume adjusting method of conference system, available in media platform.As shown in Fig. 2, should
Method comprises the following steps：
Step S11, obtains the voice data that conference terminal transmits in conference system.
Each conference terminal gathers the voice data of participant in real time in conference system, and the voice data collected is sent out
Give the media platform in conference system；Alternatively, in the case of the volume adjustment of offline voice data, can be by some audio numbers
According to being stored in advance in the memory of each conference terminal；It only need to ensure that media platform can get voice data, can be used for
Carry out volume adjustment.
Step S12, obtains the volume of voice data and default volume.
Media platform gets the volume of each voice data, and default volume.Wherein, default volume is that user presets
Set, it is comfortable that the principle which is set is so that user listens, can be according to the use of actual conference system
Environment is configured.It should be noted that default volume can be a specific numerical value or a number range.
In addition, the acquisition of the volume on voice data, media platform can sample each voice data, according to each
The size of a sampled value carries out the calculating of the volume of voice data；Can also be media platform by statistical analysis technique, to sound
The volume of frequency evidence is handled, so as to draw the volume of voice data.
Step S13, volume and default volume using voice data, determines volume change value.
Media platform can determine volume by the magnitude relationship between the volume of comparing audio data and default volume
Changing value；For example, if the volume of voice data is more than default volume, needs to turn down the volume of volume data, that is, determine
Volume change value be negative；If the volume of voice data is less than default volume, need to tune up the volume of volume data, i.e., really
The volume change value made is just.
Media platform can also be after the difference between the volume of voice data and default volume be calculated, with the difference
Based on, volume change value is calculated by preset formula.
Media platform can also be by the volume combination other specification of volume data (for example, the power corresponding to conference scenario
Value), compared with default volume, determine volume change value.For example, it can be multiplied by the basis of the volume of voice data
Weights corresponding to meeting scene, using the result after multiplication compared with default volume, determine volume change value.
Step S14, according to the magnitude relationship between volume change value and max volume yield value, determines volume adjustment
Amount.
Media platform can directly increase the volume change value after volume change value is determined with default max volume
Beneficial value is compared, and determines volume adjustment amount.It is to be used to prevent from determining in step s 13 by setting max volume yield value
The volume change value gone out is excessive, it may appear that and there is audio masking effect again in the audio after being adjusted based on the volume change value, into
And influence meeting quality.
Media platform can also be on the basis of volume change value, after carrying out after-treatment to audio changing value, for example, can
According to the unique characteristics (gender, age etc.) of corresponding conference terminal spokesman, to volume change value correspond to the place of weights
Manage and then compared with max volume yield value.
Step S15, is adjusted the volume of voice data according to volume adjustment amount.
After media platform is adjusted the volume of each voice data according to the volume adjustment amount determined in step S14,
And each conference terminal will be sent to after the voice data progress stereo process after adjusting.
By setting the maxgain value of volume, for avoiding sound mask effect caused by volume adjustment so that meeting
The voice data that conference terminal transmits in conference system can be smoothed out meeting audio mixing, be not in that loud noise masks off small voice
Situation, and clear sound；It ensure that other function modules of conference system are unaffected during volume adjustment at the same time,
Improve the practicality of system.
Embodiment 2
The present embodiment provides a kind of volume adjusting method of conference system, available in media platform.As shown in figure 3, should
Method comprises the following steps：
Step S21, obtains the voice data that conference terminal transmits in conference system.
Conference terminal in conference system gathers the audio of personnel participating in the meeting in real time, which is sampled, is quantified
It is discrete digital audio code stream with code conversion.It is basis when digital audio code stream being packaged into data frame being transmitted
What transport protocol carried out.Adoptable audio transmission protocol has Streaming transfer protocol (the HTTP Live based on HTTP
Streaming), real-time messages transportation protocol (Real Time Messaging Protocol, referred to as RTMP) and in real time
Transport protocol (Real-time Transport Protocol, referred to as RTP) etc..It is alternatively possible to according to Real-time Transport Protocol into
The encapsulation of row audio frame.
After media platform gets the audio frame of conference terminal transmission, it is whole that corresponding meeting is obtained after being decoded to audio frame
The voice data at end, and based on the adjusting processing of the follow-up audio volume of voice data progress.
Step S22, obtains the volume of voice data and default volume.
Media platform gets corresponding voice data after the voice data of conference terminal is got, by sample mode
Volume.Specifically, in a certain time interval, voice data is sampled, for example, setting N number of sampling within a certain period of time
Point, samples the voice data, obtains N number of sampled value, and the volume of voice data can be calculated by equation below：
Wherein, VcFor the volume of the voice data；ViFor the sampled value sampled to the voice data；N is sampling
The number of point.
In above-mentioned formula, the specific value of i depends on the volume adjustment precision of conference system, and required precision is higher, and i is most
Big value is N-1；Required precision is not high, and the maximum of i can be less than N-1.
In addition, default volume is concrete numerical value, default to be stored in the memory of media platform, this presets the specific of volume
Numerical value need to only guarantee so that participant has preferable user experience.
Step S23, volume and default volume using voice data, determines volume change value.
Media platform, with reference to default volume, determines volume after the volume of voice data is got using sample mode
Changing value.Specifically, comprise the following steps：
Step S231, calculates the volume of voice data and the difference of default volume.
Media platform uses equation below, calculates the difference V between the volume of voice data and default volumeg,
Vg=Vc-Vaim；
Wherein, VcFor the volume of the voice data；VaimFor the default volume.
Work as VgDuring ＞ 0, represent that the volume of voice data is more than default volume, it is necessary to reduce the volume of voice data；
Work as VgDuring ＜ 0, represent that the volume of voice data is less than default volume, it is necessary to the volume of augmented audio data.
Step S232, volume change value is determined using difference.
Media platform is determining difference VgAfterwards, difference V is utilizedgTo determine volume change value Va, specifically, can be with
Calculated using equation below：
Va=a1×Vg 2+a2×Vg+a3；
Wherein, VaFor the volume change value；VgFor the difference of the volume and default volume of the voice data；a1, a2, a3
For constant.
Be parabolical correspondence between volume change value and difference that above-mentioned formula is shown, i.e. difference is bigger,
Corresponding volume change value is bigger.
It should be noted that a in above-mentioned formula1, a2, a3Three coefficient values are with default volume and volume change
Speed it is related.Concrete numerical value estimated by some tests, usually, a here1(0,2), a can be taken2It can take
It is worth (0,1), a3Can be using value as (- 1,1).
Step S24, according to the magnitude relationship between volume change value and max volume yield value, determines volume adjustment
Amount.
Media platform calculates the volume change value and increases with max volume according to the volume change value determined in step S23
Magnitude relationship between benefit value, and according to result of calculation, determine the concrete numerical value of volume adjustment amount.
Wherein, max volume yield value is used for the maximum for representing volume adjustment.By setting max volume yield value to be
Volume change value for preventing from determining in step s 13 is excessive, it may appear that the audio after being adjusted based on the volume change value
Occur audio masking effect again, and then influence meeting quality.
Step S25, is adjusted the volume of voice data according to volume adjustment amount.
Media platform is adjusted the volume of each voice data according to the volume adjustment amount determined in step S24, and
Each conference terminal is sent to after voice data after adjusting is carried out stereo process.
Embodiment 3
The present embodiment provides a kind of volume adjusting method of conference system, available in media platform.As shown in figure 4, should
Method comprises the following steps：
Step S31, obtains the voice data that conference terminal transmits in conference system.
Identical with 2 step S21 of embodiment, details are not described herein.
Step S32, obtains the volume of voice data and default volume.
Identical with 2 step S22 of embodiment, details are not described herein.
Step S33, volume and default volume using voice data, determines volume change value.
Identical with 2 step S23 of embodiment, details are not described herein.
Step S34, according to the magnitude relationship between volume change value and max volume yield value, determines volume adjustment
Amount.
Media platform is by comparing the magnitude relationship between volume change value and max volume yield value, to determine volume tune
The size of section amount.Specifically, comprise the following steps：
Step S341, judges whether volume change value is more than max volume yield value.If volume change value is more than maximum sound
Flow gain value, then perform step S342；Otherwise, step S343 is performed.
Media platform is by calculating the difference of volume change value and max volume yield value, if the difference is more than zero, table
Show that volume change value is more than max volume yield value；Otherwise, represent that volume change value is less than or equal to max volume changing value.
Step S342, volume adjustment amount are max volume yield value.
Media platform determines that volume change value is more than max volume yield value, that is, represents volume change value beyond pre-
If max volume regulated quantity, at this time, using the max volume yield value as volume adjustment amount, on the one hand can ensure the media
Platform can according to volume change demand maximum magnitude volume adjustment amount is set；On the other hand can be to avoid volume adjustment amount
It is excessive caused by adjust after audio audio masking effect occurs.
Step S343, volume adjustment amount are volume change value.
Media platform determines that volume change value is less than or equal to max volume yield value, that is, represents that volume change amount meets
The demand of volume gain value, at this time, using the volume change value as volume adjustment amount.
Step S35, is adjusted the volume of voice data according to volume adjustment amount.
Media platform is adjusted the volume of each voice data according to the volume adjustment amount determined in step S34, tool
Body, the volume of the voice data after adjusting is：The sum of volume and volume adjustment amount of voice data.
The volume adjusting method for the conference system not being described in detail in the present embodiment, refer to embodiment 2, herein no longer
Repeat.
Embodiment 4
The present embodiment provides a kind of volume adjustment device of conference system, available for execution embodiment 1 into embodiment 3
The volume adjusting method of conference system.As shown in figure 5, the device includes：
First acquisition unit 51, for obtaining the voice data that conference terminal transmits in conference system.
Second acquisition unit 52, for the volume for obtaining the voice data and default volume.
First determination unit 53, for the volume using the voice data and the default volume, determines volume
Changing value.
Second determination unit 54, for being closed according to the size between the volume change value and max volume yield value
System, determines volume adjustment amount.
Sound volume regulation unit 55, is adjusted the volume of the voice data according to the volume adjustment amount.
As a kind of optional embodiment of the present embodiment, wherein, the first determination unit 53 includes：
Computation subunit, for calculating the volume of voice data and the difference of default volume.
Determination subelement, for determining volume change value using difference.
As another optional embodiment of the present embodiment, wherein, the second determination unit 54 includes：
Judgment sub-unit, for judging whether volume change value is more than max volume yield value.
First determination subelement, for determining that volume adjustment amount is max volume yield value.
Second determination subelement, for determining that volume adjustment amount is volume change value.
Embodiment 5
Fig. 6 is the hardware architecture diagram of media platform provided in an embodiment of the present invention, as shown in fig. 6, the device includes
One or more processors 61 and memory 62, in Fig. 6 by taking a processor 61 as an example.
Processor 61 can be connected with memory 62 by bus or other modes, to be connected as by bus in Fig. 6
Example.
Processor 61 can be central processing unit (Central Processing Unit, CPU).Processor 61 can be with
For other general processors, digital signal processor (Digital Signal Processor, DSP), application-specific integrated circuit
(Application Specific Integrated Circuit, ASIC), field programmable gate array (Field-
Programmable Gate Array, FPGA) either other programmable logic device, discrete gate or transistor logic,
The chips such as discrete hardware components, or the combination of above-mentioned all kinds of chips.General processor can be microprocessor or the processing
Device can also be any conventional processor etc..
Memory 62 is used as a kind of non-transient computer readable storage medium storing program for executing, available for storing non-transient software program, non-
Transient computer executable program and module, such as the corresponding journey of the volume adjusting method of the conference system in the embodiment of the present invention
Sequence instruction/module.Processor 61 is stored in non-transient software program, instruction and module in memory 62 by operation, from
And various function application and the data processing of execute server, that is, realize the volume adjustment of the conference system in above-described embodiment
Method.
Memory 62 can include storing program area and storage data field, wherein, storing program area can storage program area,
At least one required application program of function；Storage data field can store the use of the volume adjustment device according to conference system
Data created etc..In addition, memory 62 can include high-speed random access memory, non-transient storage can also be included
Device, for example, at least a disk memory, flush memory device or other non-transient solid-state memories.In certain embodiments,
Memory 62 is optional including that can pass through network connection relative to the remotely located memory of processor 61, these remote memories
To video frequency abstract generating means.The example of above-mentioned network includes but not limited to internet, intranet, LAN, mobile logical
Letter net and combinations thereof.
One or more of modules are stored in the memory 62, when by one or more of processors 61
During execution, the volume adjusting method of the conference system any one of embodiment 1 to embodiment 3 is performed.
The said goods can perform the method that the embodiment of the present invention is provided, and possesses the corresponding function module of execution method and has
Beneficial effect.The ins and outs of detailed description, the correlation that for details, reference can be made in embodiment as shown in Figure 1 are not retouched in the present embodiment
State.
Embodiment 6
The embodiment of the present invention additionally provides a kind of non-transient computer storage medium, and the computer-readable storage medium is stored with
Computer executable instructions, the computer executable instructions can perform the meeting system any one of embodiment 1 to embodiment 3
The volume adjusting method of system.Wherein, the storage medium can be magnetic disc, CD, read-only memory (Read-Only
Memory, ROM), random access memory (Random Access Memory, RAM), flash memory (Flash
Memory), hard disk (Hard Disk Drive, abbreviation：) or solid state hard disc (Solid-State Drive, SSD) etc. HDD；Institute
The combination of memory of mentioned kind can also be included by stating storage medium.
It is to lead to it will be understood by those skilled in the art that realizing all or part of flow in above-described embodiment method
Computer program is crossed to instruct relevant hardware to complete, the program can be stored in a computer read/write memory medium
In, the program is upon execution, it may include such as the flow of the embodiment of above-mentioned each method.Wherein, the storage medium can be magnetic
Dish, CD, read-only memory (ROM) or random access memory (RAM) etc..
Although being described in conjunction with the accompanying the embodiment of the present invention, those skilled in the art can not depart from the present invention
Spirit and scope in the case of various modification can be adapted and modification, such modifications and variations are each fallen within by appended claims institute
Within the scope of restriction.
Claims (10)
1. a kind of volume adjusting method of conference system, it is characterised in that comprise the following steps：
Obtain the voice data that conference terminal transmits in conference system；
Obtain the volume of the voice data and default volume；
Volume and the default volume using the voice data, determine volume change value；
According to the magnitude relationship between the volume change value and max volume yield value, volume adjustment amount is determined；
The volume of the voice data is adjusted according to the volume adjustment amount.
2. volume adjusting method according to claim 1, it is characterised in that volume and institute using the voice data
Default volume is stated, determines volume change value, including：
Calculate the volume of the voice data and the difference of default volume；
The volume change value is determined using the difference.
3. volume adjusting method according to claim 2, it is characterised in that the volume change is calculated using equation below
Value：
Va=a1×Vg 2+a2×Vg+a3；
Wherein, VaFor the volume change value；VgFor the difference of the volume and default volume of the voice data；a1, a2, a3To be normal
Number.
4. volume adjusting method according to any one of claim 1 to 3, it is characterised in that described according to the volume
Magnitude relationship between changing value and max volume yield value determines volume adjustment amount, including：
Judge whether the volume change value is more than the max volume yield value；
When the volume change value is more than the max volume yield value, the volume adjustment amount is the max volume gain
Value；
When the volume change value is less than or equal to the max volume yield value, the volume adjustment amount becomes for the volume
Change value.
5. volume adjusting method according to any one of claim 1 to 4, it is characterised in that calculated using equation below
The volume of the voice data：
<mrow>
<msub>
<mi>V</mi>
<mi>c</mi>
</msub>
<mo>=</mo>
<msqrt>
<mfrac>
<mrow>
<munderover>
<mo>&Sigma;</mo>
<mrow>
<mi>i</mi>
<mo>=</mo>
<mn>0</mn>
</mrow>
<mrow>
<mi>i</mi>
<mo><</mo>
<mi>N</mi>
</mrow>
</munderover>
<msubsup>
<mi>V</mi>
<mi>i</mi>
<mn>2</mn>
</msubsup>
</mrow>
<mi>N</mi>
</mfrac>
</msqrt>
<mo>;</mo>
</mrow>
Wherein, VcFor the volume of the voice data；ViFor the sampled value sampled to the voice data；N is sampled point
Number.
A kind of 6. volume adjustment device of conference system, it is characterised in that including：
First acquisition unit, for obtaining the voice data that conference terminal transmits in conference system；
Second acquisition unit, for the volume for obtaining the voice data and default volume；
First determination unit, for the volume using the voice data and the default volume, determines volume change value；
Second determination unit, for according to the magnitude relationship between the volume change value and max volume yield value, determining
Go out volume adjustment amount；
Sound volume regulation unit, is adjusted the volume of the voice data according to the volume adjustment amount.
7. volume adjustment device according to claim 6, it is characterised in that first determination unit includes：
Computation subunit, for calculating the volume of the voice data and the difference of default volume；
Determination subelement, for determining the volume change value using the difference.
8. volume adjustment device according to claim 7, it is characterised in that the volume change is calculated using equation below
Value：
Va=a1×Vg 2+a2×Vg+a3；
Wherein, VaFor the volume change value；VgFor the difference of the volume and default volume of the voice data；a1, a2, a3To be normal
Number.
9. a kind of media platform, it is characterised in that including at least one processor；And with least one processor communication
The memory of connection；Wherein, the memory storage has the instruction that can be performed by one processor, and described instruction is described
At least one processor performs, so that the meeting system any one of at least one processor perform claim requirement 1 to 5
The volume adjusting method of system.
10. a kind of non-transient computer readable storage medium storing program for executing, it is characterised in that the non-transient computer readable storage medium storing program for executing is deposited
Computer instruction is stored up, the computer instruction is used to make the conference system any one of computer perform claim requirement 1 to 5
Volume adjusting method.
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