CN105611458B - A kind of directional recording control method and device of mobile terminal - Google Patents
A kind of directional recording control method and device of mobile terminal Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 34
- 238000012544 monitoring process Methods 0.000 claims abstract description 13
- 230000005236 sound signal Effects 0.000 claims description 124
- 238000001228 spectrum Methods 0.000 claims description 22
- 238000010586 diagram Methods 0.000 claims description 20
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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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Abstract
The embodiment of the invention discloses a kind of directional recording control method and device of mobile terminal.This method comprises: obtaining the recording direction information of user's input when monitoring that recording direction selects event；Recording direction is determined according to the recording direction information；At least three microphone locations on mobile terminal are controlled according to identified recording direction, and generate recording file.The embodiment of the present invention is by using above-mentioned technical proposal, when the position of target sound source changes, or target sound source is when changing, user is not necessarily to change position or the direction of mobile terminal, can by input on mobile terminals oneself anticipation recording direction recording direction information, to realize the directional recording to the recording direction.
Description
Technical field
The present embodiments relate to the directional recording control method of recording technology field more particularly to a kind of mobile terminal and
Device.
Background technique
In order to meet recording demand of the user in life and work, most mobile terminals all have sound-recording function, such as
Mobile phone, tablet computer, music player and recording pen of profession etc..
User using mobile terminal sound-recording function when, playback environ-ment often exist multiple personage's one's voices in speech with
And various environmental noises, so there are multi-acoustical, microphones for surrounding for the microphone for realizing sound-recording function
It all can record the sound of these sound sources to form recording file.However, often only one direction interested to user
On the sound of sound source can be dry due to the sound of other sound sources when listening to the recording file of the sound comprising institute's sound source
It disturbs and oneself interested sound can be heard.
In order to become apparent from the sound of the sound source interested in recording file, user is generally required the wheat in mobile terminal
Gram wind is directed toward sound source interested, and when the position of sound source interested constantly changes or the interested sound source of user is frequently from one
When a sound source becomes another sound source, user just needs ceaselessly to change the position of mobile terminal, makes troubles to user.
Summary of the invention
The purpose of the embodiment of the present invention is that a kind of directional recording control method and device of mobile terminal are provided, it is existing to solve
In some record types, mobile terminal can not be the problem of directional recording be realized according to the variation of target sound source in fixed position.
On the one hand, the embodiment of the invention provides a kind of directional recording control methods of mobile terminal, comprising:
When monitoring that recording direction selects event, the recording direction information of user's input is obtained；
Recording direction is determined according to the recording direction information；
At least three microphone locations on mobile terminal are controlled according to identified recording direction, and generate recording text
Part.
On the other hand, the embodiment of the invention provides a kind of directional recording control devices of mobile terminal, comprising:
Recording direction data obtaining module, for obtaining the record of user's input when monitoring that recording direction selects event
Sound directional information；
Recording direction determining module, for determining recording direction according to the recording direction information；
Recording file generation module, for controlling at least three Mikes on mobile terminal according to identified recording direction
Wind recording, and generate recording file.
The directional recording control program of the mobile terminal provided in the embodiment of the present invention monitors that recording direction selects event
When, the recording direction information of user's input is obtained, recording direction is determined according to recording direction information, according to identified recording side
At least three microphone locations on control mobile terminal, and generate recording file.By using above-mentioned technical proposal, work as mesh
When the position of mark sound source changes or target sound source changes, user is not necessarily to change position or the direction of mobile terminal,
Can by input on mobile terminals oneself anticipation recording direction recording direction information, to realize to the recording direction
Directional recording.
Detailed description of the invention
Fig. 1 is a kind of flow diagram of the directional recording control method for mobile terminal that the embodiment of the present invention one provides；
Fig. 2 is a kind of flow diagram of the directional recording control method of mobile terminal provided by Embodiment 2 of the present invention；
Fig. 3 is that the first recording direction provided by Embodiment 2 of the present invention chooses interface schematic diagram；
Fig. 4 is that second of recording direction provided by Embodiment 2 of the present invention chooses interface schematic diagram；
Fig. 5 is a kind of flow diagram of the directional recording control method for mobile terminal that the embodiment of the present invention three provides；
Fig. 6 is a kind of flow diagram of the directional recording control method for mobile terminal that the embodiment of the present invention four provides；
Fig. 7 is a kind of structural block diagram of the directional recording control device for mobile terminal that the embodiment of the present invention five provides.
Specific embodiment
To further illustrate the technical scheme of the present invention below with reference to the accompanying drawings and specific embodiments.It is understood that
It is that specific embodiment described herein is used only for explaining the present invention rather than limiting the invention.It further needs exist for illustrating
, only the parts related to the present invention are shown for ease of description, in attached drawing rather than entire infrastructure.
It should be mentioned that some exemplary embodiments are described as before exemplary embodiment is discussed in greater detail
The processing or method described as flow chart.Although each step is described as the processing of sequence by flow chart, many of these
Step can be implemented concurrently, concomitantly or simultaneously.In addition, the sequence of each step can be rearranged.When its operation
The processing can be terminated when completion, it is also possible to have the additional step being not included in attached drawing.The processing can be with
Corresponding to method, function, regulation, subroutine, subprogram etc..
Embodiment one
Fig. 1 is a kind of flow diagram of the directional recording control method for mobile terminal that the embodiment of the present invention one provides,
This method can be executed by the directional recording control device of mobile terminal, and wherein the device can be implemented by software and/or hardware, and one
As can integrate in the terminal.As shown in Figure 1, this method comprises:
Step 101, monitor recording direction select event when, obtain user input recording direction information.
Illustratively, the concretely terminal devices such as mobile phone, tablet computer and recording pen of the mobile terminal in the present embodiment.
At least three microphones are configured in the mobile terminal.
Illustratively, monitor that recording direction selection event specifically can refer to user's operation mobile terminal and enter sound-recording function
Afterwards, the button of triggering selection recording direction；Alternatively, default enters recording side after user's operation mobile terminal enters sound-recording function
To selection interface etc..
Illustratively, the recording direction information of user's input, which specifically can be, represents recording direction to some according to user
The triggering of icon recording direction information generated；It is also possible to user directly by keyboard input between reference direction
Angle, such as 30 degree or -30 degree.
Step 102 determines recording direction according to recording direction information.
Step 103 controls at least three microphone locations on mobile terminal according to identified recording direction, and generates
Recording file.
Illustratively, the corresponding recording parameter of each recording direction can be stored in advance in the terminal, according to determining
Recording direction choose corresponding recording parameter, and at least three microphones on mobile terminal are controlled according to recording parameter and are realized
Directional recording.
The directional recording control method for the mobile terminal that the embodiment of the present invention one provides monitors that recording direction selects event
When, the recording direction information of user's input is obtained, recording direction is determined according to recording direction information, according to identified recording side
At least three microphone locations on control mobile terminal, and generate recording file.By using above-mentioned technical proposal, work as mesh
When the position of mark sound source changes or target sound source changes, user is not necessarily to change position or the direction of mobile terminal,
Can by input on mobile terminals oneself anticipation recording direction recording direction information, to realize to the recording direction
Directional recording.
Embodiment two
Fig. 2 is a kind of flow diagram of the directional recording control method of mobile terminal provided by Embodiment 2 of the present invention,
The present embodiment is optimized based on above-described embodiment, in the present embodiment, step " is monitored that recording direction selects event
When, obtain the recording direction information of user's input " optimization are as follows: when monitoring that recording direction selects event, display recording direction choosing
Take interface, wherein recording direction chooses the directional icon that interface includes preset number, and the directional icon of preset number constitutes one
Circumference；It is chosen on interface according to user in recording direction, recording direction information is generated to the trigger action of directional icon.
Correspondingly, the method for the present embodiment includes the following steps:
Step 201, monitor recording direction select event when, display recording direction choose interface.
Wherein, the recording direction chooses the directional icon that interface includes preset number, the directional diagram of the preset number
Mark constitutes a circumference.
Specifically, the preset number can be adjusted according to the actual situation, for example, when the directional precision to directional recording
When more demanding, it can suitably increase the number of directional icon；When the directional precision to directional recording requires lower, can suitably subtract
The number of few directional icon.
Step 202 is chosen on interface according to user in the recording direction, generates recording to the trigger action of directional icon
Directional information.
Illustratively, this step is concretely: being chosen on interface according to user in recording direction, the touch to directional icon
Operation generates recording direction information；Or, choosing on interface according to user in recording direction, pass through the pointer other side in dragging circumference
It is operated to the direction of icon and generates recording direction information.
Fig. 3 is that the first recording direction provided by Embodiment 2 of the present invention chooses interface schematic diagram, as shown in figure 3, recording
It includes 12 circular directional icons on interface that direction, which is chosen, and each directional icon represents a recording direction.Directional icon can
In the form of being designed to virtual push button, when user touches one of directional icon, it can be considered that user selects direction figure
The recording direction that the recording direction represented is chosen as user is marked, i.e., is chosen on interface according to user in recording direction, to directional diagram
Target touch operation generates recording direction information.Preferably, for the beauty of operation interface and the convenience of operation, at 12
In the circumference that directional icon is constituted, it is additionally provided with recording and starts/pause button (the triangle icon in such as figure).
Fig. 4 is that second of recording direction provided by Embodiment 2 of the present invention chooses interface schematic diagram, as shown in figure 4, recording
It includes 12 directional icons close to trapezoidal shape on interface that direction, which is chosen, and each directional icon represents a recording direction.?
In the circumference that 12 directional icons are constituted, it is additionally provided with pointer, when user is directed toward one of directional diagram by dragging the pointer
When mark, it can be considered the recording direction that the recording direction that user selects direction icon to represent is chosen as user, i.e., existed according to user
Recording direction is chosen on interface, and the direction operation by the finger in dragging circumference for directional icon generates recording direction information.
It provides only two kinds of recording directions selection interfaces above to schematically illustrate, wherein specific number, the shape of directional icon
Shape, existence form and triggering mode etc. are not construed as limiting, and those skilled in the art can be designed according to the actual situation.
Step 203 determines recording direction according to recording direction information.
Step 204 controls at least three microphone locations on mobile terminal according to identified recording direction, and generates
Recording file.
A kind of directional recording control method for mobile terminal that the present embodiment two provides monitors that recording direction selects event
When, display recording direction chooses interface, and is chosen on interface according to user in recording direction, raw to the trigger action of directional icon
It at recording direction information, allows users to easily select recording direction, increases playability, promote user experience.
Embodiment three
Fig. 5 is a kind of flow diagram of the directional recording control method for mobile terminal that the embodiment of the present invention three provides,
The present embodiment is optimized based on above-described embodiment, in the present embodiment, by step " according to identified recording direction control
At least three microphone locations on mobile terminal processed, and generate recording file " optimization are as follows: pass through at least three on mobile terminal
A microphone obtains recorded audio signals；Default recording parameter accordingly is obtained according to identified recording direction；According to acquired
Default recording parameter determines the target recorded audio signals in recorded audio signals；Target recorded audio signals are handled, and generate recording text
Part.
Further, target recorded audio signals are handled, and generate recording file, it may include: promote target recording letter
Number gain, obtain the first recorded audio signals；Reduce the increasing of other recorded audio signals in recorded audio signals in addition to target recorded audio signals
Benefit obtains the second recorded audio signals；Recording file is generated according to the first recorded audio signals and the second recorded audio signals.
Correspondingly, the method for the present embodiment includes the following steps:
Step 501, monitor recording direction select event when, display recording direction choose interface.
Wherein, the recording direction chooses the directional icon that interface includes preset number, the directional diagram of the preset number
Mark constitutes a circumference.
Step 502 is chosen on interface according to user in recording direction, generates recording direction to the trigger action of directional icon
Information.
Step 503 determines recording direction according to recording direction information.
Step 504 obtains recorded audio signals by least three microphones on mobile terminal.
Illustratively, after recording direction has been determined according to user's operation, when starting recording, mobile terminal can be automatically turned on
In all or part of microphone (the unlatching quantity of microphone is no less than three), and control the microphone location of unlatching, obtain
Take the recorded audio signals of at least three microphones in opened microphone.For example, 6 microphones are configured in mobile terminal,
5 microphones therein can be automatically turned on, and controls 5 microphones and starts to record, obtain the recording of 4 microphones therein
Signal；For another example, it is configured with 3 microphones in mobile terminal, 3 microphones can be automatically turned on, and control 3 microphones and open
Begin to record, obtains the recorded audio signals of 3 microphones.
Step 505 obtains default recording parameter accordingly according to identified recording direction.
Illustratively, it is corresponding default that recording direction representated by each directional icon can be stored in mobile terminal in advance
Recording parameter, the default recording parameter can specifically be determined by the arrangement mode of recording direction and at least three microphones.Wheat
The arrangement mode of gram wind directly determines the phase between each microphone position on mobile terminals and every two microphone
To positional relationship.For sound source on a direction, the sound issued reaches the time meeting different from of each microphone,
Microphone collected voice signal intensity it is also different.When the linear distance relative close of sound source and microphone, sound
The time for reaching the microphone can relatively early, and the intensity of voice signal is also relatively strong；When the straight line of sound source and microphone away from
From relatively far away from when, the time that sound reaches the microphone can relatively late, and the intensity of voice signal is also relatively weak.It can basis
The corresponding default recording parameter of recording direction is arranged in above-mentioned principle, includes to select from all recorded audio signals in default recording parameter
The screening conditions of the corresponding target recorded audio signals of identified recording direction out.It, can be according to this really after recording direction is determined
Recording direction after fixed directly transfers default recording parameter accordingly from mobile terminal.
Step 506 determines target recorded audio signals in recorded audio signals according to acquired default recording parameter.
Illustratively, target recording can be filtered out from recorded audio signals according to the screening conditions for including in default recording parameter
Signal.
Step 507, the gain for promoting target recorded audio signals, obtain the first recorded audio signals.
The gain of other recorded audio signals in step 508, reduction recorded audio signals in addition to target recorded audio signals, obtains second
Recorded audio signals.
Step 509 generates recording file according to the first recorded audio signals and the second recorded audio signals.
It should be noted that step 507- step 509 provide it is a kind of preferably target recorded audio signals are handled, and
The mode for generating recording file, it will be appreciated by persons skilled in the art that there may also be other processing modes.For example, can
Target recorded audio signals are retained, remove other recorded audio signals in addition to target recorded audio signals, and generate recording file, this
Sample does the sound that can remove sound source on other recording directions in addition to default recording direction, does not feel that is, having filtered out user
The sound of interest, it is ensured that user can clearly hear oneself interested sound；For another example, target recorded audio signals can be carried out
Retain, and promote the gain of target recorded audio signals, removes other recorded audio signals in addition to target recorded audio signals, and generate recording
File, this have the advantage that, the attributes such as intensity of sound and loudness of sound in recording file can be improved, further facilitate
User does not hear oneself interested sound.And the processing mode that step 507- step 509 provides, gain is promoted or reduced amplitude
It can be arranged by system default, also be can be set by the user himself.For example, settable Lifting Coefficients and reduction coefficient, by two
The cooperation of coefficient is adjusted, it can be achieved that retaining the sound on other recording directions in addition to default recording direction as the case may be
Specific gravity, and then avoid it is some distortion sound generations.
The embodiment of the present invention three is recorded according to recording direction on the basis of the above embodiments, to control mobile terminal
The step of be optimized.Recorded audio signals are first obtained, further according to the corresponding default recording parameter of recording direction from the recording of acquisition
Target recorded audio signals are determined in signal, after handling target recorded audio signals, generate recording file.Realize user's selection
Directional recording on recording direction, makes user when listening to recording file generated, can clearly hear default recording side
The sound of upward sound source promotes user experience.
Example IV
Fig. 6 is a kind of flow diagram of the directional recording control method for mobile terminal that the embodiment of the present invention four provides,
The present embodiment is optimized based on above-described embodiment, in the present embodiment, " monitors that recording direction selects thing in step
Before part ", step is increased: the recorded audio signals of stationary sound source are obtained by least three microphones on mobile terminal；Respectively
Fourier transform is carried out to the recorded audio signals of the corresponding stationary sound source of each microphone at least three microphones, is obtained corresponding
Frequency spectrum data；Calculate the difference of corresponding amplitude in the corresponding frequency spectrum data of every two microphone at least three microphones
And/or the difference of phase；According to the difference of amplitude and/or the difference of phase, it is corresponding pre- that generation stationary sound source is currently located recording direction
If recording parameter.Also, by step " obtaining default recording parameter accordingly according to identified recording direction " optimization are as follows: according to
Identified recording direction obtains corresponding with identified recording direction from all default recording parameters of above-mentioned generation
Default recording parameter.
Correspondingly, the method for the present embodiment includes the following steps:
Step 601, the recorded audio signals that stationary sound source is obtained by least three microphones on mobile terminal.
It illustratively, can be in playback environ-ment after the arrangement mode of at least three microphones on mobile terminal determines
In a direction relative to mobile terminal on place a stationary sound source, and there is no sound source on other directions, pass through movement
At least three microphones in terminal obtain the recorded audio signals of stationary sound source.For example, as shown in figure 3, can be in the center of circle and 1 of circumference
O'clock direction directional icon between a stationary sound source is placed on line direction, and there is no sound source on other directions.
It should be noted that three microphones can be configured only in the terminal, can need not change so existing mobile whole
The hardware configuration at end, can also simplify default recording parameter, and improving operational speed allows users to faster uppick directional recording
Interested sound in file promotes user experience.
Step 602, respectively to the recorded audio signals of the corresponding stationary sound source of each microphone at least three microphones into
Row Fourier transform obtains corresponding frequency spectrum data.
Corresponding amplitude in the corresponding frequency spectrum data of every two microphone in step 603, at least three microphones of calculating
Difference and/or phase difference.
Step 604, according to the difference of amplitude and/or the difference of phase, generating stationary sound source, to be currently located recording direction corresponding
Default recording parameter.
Preferably, it in order to ensure the accuracy of default recording parameter, can be moved on recording direction where stationary sound source solid
Determine sound source, calculates the difference of corresponding amplitude in the corresponding frequency spectrum data of every two microphone at least three microphones again
And/or the difference of phase.And so on, it is right in the corresponding frequency spectrum data of every two microphone at least three microphones to can be obtained
The regular or locating range of the difference of the difference and/or phase for the amplitude answered, according to the difference of the amplitude and/or the rule of the difference of phase
Or locating range generates stationary sound source and is currently located the corresponding default recording parameter of recording direction.
Preferably, presetting can include the difference of amplitude and the difference of phase in recording parameter simultaneously.
Step 605, monitor recording direction select event when, display recording direction choose interface.
Step 606 is chosen on interface according to user in recording direction, generates recording direction to the trigger action of directional icon
Information.
Step 607 determines recording direction according to recording direction information.
Step 608 obtains recorded audio signals by least three microphones on mobile terminal.
Step 609, according to identified recording direction from all default recording parameters of above-mentioned generation, obtain with institute really
The corresponding default recording parameter of fixed recording direction.
Step 610 determines target recorded audio signals in recorded audio signals according to acquired default recording parameter.
Specifically, this step can include: respectively to the corresponding recorded audio signals of each microphone at least three microphones
Fourier transform is carried out, corresponding frequency spectrum data is obtained；For each frequency, the every two wheat at least three microphones is calculated
The difference of corresponding amplitude and/or the difference of phase in gram corresponding frequency spectrum data of wind；Judge the difference and/or phase of amplitude calculated
Difference whether match with the difference of amplitude and/or the difference of phase for including in acquired default recording parameter, if so, determine
Recorded audio signals corresponding to current frequency are target recorded audio signals.
Illustratively, carrying out Fourier transform to recorded audio signals is the gained in order to separate the sound of different frequency
To frequency spectrum data in, each different frequency respectively corresponds the frequency spectrum data of a sound source.
It illustratively, can be according to the actual situation when including simultaneously difference in magnitude and phase difference in default recording parameter
Matching condition is configured.For example, will can not only match the difference of amplitude but also matching phase when higher to directional recording performance requirement
The corresponding recorded audio signals of frequency of the difference of position are determined as target recorded audio signals；When lower to directional recording performance requirement, it can incite somebody to action
The corresponding recorded audio signals of frequency for matching the difference of amplitude or the difference of matched-phase are determined as target recorded audio signals.
Step 611 handles target recorded audio signals, and generates recording file.
The embodiment of the present invention four on the basis of the above embodiments, increases the correlation step for generating default recording parameter,
Further according to identified recording direction from all default recording parameters of generation, obtain corresponding with identified recording direction
Default recording parameter, and target recorded audio signals are filtered out according to the default recording parameter of acquisition, finally to target recorded audio signals
It carries out processing and generates recording file.Wherein, the difference for presetting the difference and/or phase in recording parameter comprising amplitude, according to amplitude
Difference and/or the match condition of difference of phase determine target recorded audio signals, the accuracy of screening target recorded audio signals can be improved, from
And realize more accurate directional recording, promote user experience.
Embodiment five
Fig. 7 is a kind of structural block diagram of the directional recording control device for mobile terminal that the embodiment of the present invention five provides, should
Device can be implemented by software and/or hardware, and be typically integrated in mobile terminal, can pass through the directional recording control of execution mobile terminal
Method processed controls the directional recording of mobile terminal.As shown in fig. 7, the device includes: recording direction acquisition of information mould
Block 701, recording direction determining module 702 and recording file generation module 703.
Wherein, recording direction data obtaining module 701, for obtaining user when monitoring that recording direction selects event
The recording direction information of input；Recording direction determining module 702, for determining recording direction according to the recording direction information；
Recording file generation module 703, at least three microphones for being controlled on mobile terminal according to identified recording direction are recorded
Sound, and generate recording file.
The directional recording control device for the mobile terminal that the embodiment of the present invention five provides, recording direction data obtaining module
701 when monitoring that recording direction selects event, obtains the recording direction information of user's input, recording direction determining module 702
Determine that recording direction, recording file generation module 703 are controlled according to identified recording direction and moved according to recording direction information
At least three microphone locations in terminal, and generate recording file.By using above-mentioned technical proposal, when the position of target sound source
Set and change or when target sound source changes, user is not necessarily to change position or the direction of mobile terminal, can by
The recording direction information of the recording direction of oneself anticipation is inputted on mobile terminal, to realize the directional recording to the recording direction.
On the basis of the above embodiments, the recording direction data obtaining module may include choose interface display unit and
Recording direction information generating unit.Wherein, interface display unit is chosen, for showing when monitoring that recording direction selects event
Show that recording direction chooses interface, wherein the recording direction chooses the directional icon that interface includes preset number, the present count
Purpose directional icon constitutes a circumference；Recording direction information generating unit, for being chosen according to user in the recording direction
On interface, recording direction information is generated to the trigger action of directional icon.
On the basis of the above embodiments, the recording direction information generating unit is particularly used in: according to user in institute
It states recording direction to choose on interface, recording direction information is generated to the touch operation of directional icon；Or, according to user in the record
Sound direction is chosen on interface, generates recording direction letter for the direction operation of directional icon by dragging the finger in the circumference
Breath.
On the basis of the above embodiments, the recording file generation module may include recorded audio signals acquiring unit, preset
Recording parameter acquiring unit, target recorded audio signals determination unit and recording file generation unit.Wherein, recorded audio signals obtain single
Member, for obtaining recorded audio signals by least three microphones on mobile terminal；Default recording parameter acquiring unit, is used for root
Default recording parameter accordingly is obtained according to identified recording direction；Target recorded audio signals determination unit, for according to acquired in
Default recording parameter determine the target recorded audio signals in the recorded audio signals；Recording file generation unit, for the mesh
Mark recorded audio signals are handled, and generate recording file.
On the basis of the above embodiments, the recording file generation unit is particularly used in: promoting the target recording
The gain of signal obtains the first recorded audio signals；Reduce other records in the recorded audio signals in addition to the target recorded audio signals
The gain of sound signal obtains the second recorded audio signals；Recording is generated according to first recorded audio signals and second recorded audio signals
File.
On the basis of the above embodiments, the device may also include target sound source recorded audio signals obtain module, conversion module,
Computing module and default recording parameter generation module.Wherein, target sound source recorded audio signals obtain module, for monitoring to record
Before direction selection event, the recorded audio signals of stationary sound source are obtained by least three microphones on mobile terminal；Convert mould
Block carries out Fourier for the recorded audio signals respectively to the corresponding stationary sound source of each microphone at least three microphone
Leaf transformation obtains corresponding frequency spectrum data；Computing module, for calculating the every two microphone at least three microphone
The difference of the difference of corresponding amplitude and/or phase in corresponding frequency spectrum data；Default recording parameter generation module, for according to
The difference of the poor and/or described phase of amplitude generates the stationary sound source and is currently located the corresponding default recording parameter of recording direction.
The default recording parameter acquiring unit, is particularly used in: raw from the default recording parameter according to identified recording direction
In all default recording parameters generated at module, default recording parameter corresponding with identified recording direction is obtained.
On the basis of the above embodiments, the target recorded audio signals determination unit, is particularly used in: respectively to it is described extremely
The corresponding recorded audio signals of each microphone in few three microphones carry out Fourier transform, obtain corresponding frequency spectrum data；Needle
To each frequency, corresponding amplitude in the corresponding frequency spectrum data of every two microphone at least three microphone is calculated
The difference of difference and/or phase；Judge amplitude calculated difference and/or phase difference whether in acquired default recording parameter
The difference for the amplitude for including and/or the difference of phase match, if so, determining recorded audio signals corresponding to current frequency for target record
Sound signal.
Any embodiment of that present invention institute can be performed in the directional recording control device of the mobile terminal provided in above-described embodiment
The directional recording control method of the mobile terminal of offer has and executes the corresponding functional module of this method and beneficial effect.Do not exist
The technical detail of detailed description in above-described embodiment, reference can be made to the orientation of mobile terminal provided by any embodiment of the invention is recorded
Sound controlling method.
Note that the above is only a better embodiment of the present invention and the applied technical principle.It will be appreciated by those skilled in the art that
The invention is not limited to the specific embodiments described herein, be able to carry out for a person skilled in the art it is various it is apparent variation,
It readjusts and substitutes without departing from protection scope of the present invention.Therefore, although being carried out by above embodiments to the present invention
It is described in further detail, but the present invention is not limited to the above embodiments only, without departing from the inventive concept, also
It may include more other equivalent embodiments, and the scope of the invention is determined by the scope of the appended claims.
Claims (10)
1. a kind of directional recording control method of mobile terminal characterized by comprising
When monitoring that recording direction selects event, the recording direction information of user's input is obtained, comprising: monitor that recording direction selects
When selecting event, display recording direction chooses interface, wherein the recording direction chooses the directional diagram that interface includes preset number
The directional icon of mark, the preset number constitutes a circumference；It is chosen on interface according to user in the recording direction, to direction
The trigger action of icon generates recording direction information；
Recording direction is determined according to the recording direction information；
At least three microphones on mobile terminal are opened according to identified recording direction, and obtain at least three Mike
The recorded audio signals of wind, and generate recording file；Wherein, the recording direction according to determined by is opened on mobile terminal at least
Three microphones, and the recorded audio signals of at least three microphone are obtained, and generate recording file, comprising:
Recorded audio signals are obtained by least three microphones on mobile terminal；
Default recording parameter accordingly is obtained according to identified recording direction；
The target recorded audio signals in the recorded audio signals are determined according to acquired default recording parameter；
The target recorded audio signals are handled, and generate recording file.
2. the method according to claim 1, wherein according to user the recording direction choose interface on, it is right
The trigger action of directional icon generates recording direction information, comprising:
It is chosen on interface according to user in the recording direction, recording direction information is generated to the touch operation of directional icon；Or,
It is chosen on interface according to user in the recording direction, the direction of directional icon is directed to by the finger dragged in the circumference
Operation generates recording direction information.
3. the method according to claim 1, wherein handling the target recorded audio signals, and generating record
Sound file, comprising:
The gain for promoting the target recorded audio signals, obtains the first recorded audio signals；
The gain for reducing other recorded audio signals in the recorded audio signals in addition to the target recorded audio signals, obtains the second recording
Signal；
Recording file is generated according to first recorded audio signals and second recorded audio signals.
4. the method according to claim 1, wherein before monitoring recording direction selection event, further includes:
The recorded audio signals of stationary sound source are obtained by least three microphones on mobile terminal；
Fourier is carried out to the recorded audio signals of the corresponding stationary sound source of each microphone at least three microphone respectively
Transformation, obtains corresponding frequency spectrum data；
Calculate in the corresponding frequency spectrum data of every two microphone at least three microphone difference of corresponding amplitude and/or
The difference of phase；
According to the difference of the poor and/or described phase of the amplitude, generating the stationary sound source, to be currently located recording direction corresponding
Default recording parameter；
The recording direction according to determined by obtains default recording parameter accordingly, comprising:
According to identified recording direction from all default recording parameters of above-mentioned generation, obtain and identified recording direction
Corresponding default recording parameter.
5. according to the method described in claim 4, it is characterized in that, described in the default recording parameter according to acquired in is determining
Target recorded audio signals in recorded audio signals, comprising:
Fourier transform is carried out to the corresponding recorded audio signals of each microphone at least three microphone respectively, obtains phase
The frequency spectrum data answered；
For each frequency, calculate corresponding in the corresponding frequency spectrum data of every two microphone at least three microphone
The difference of amplitude and/or the difference of phase；
Judge amplitude calculated difference and/or phase difference whether with the amplitude that includes in acquired default recording parameter
The difference of difference and/or phase matches, if so, determining that recorded audio signals corresponding to current frequency are target recorded audio signals.
6. a kind of directional recording control device of mobile terminal characterized by comprising
Recording direction data obtaining module, for obtaining the recording side of user's input when monitoring that recording direction selects event
To information；It include: to choose interface display unit, for when monitoring that recording direction selects event, display recording direction to be chosen
Interface, wherein the recording direction chooses the directional icon that interface includes preset number, the directional icon structure of the preset number
At a circumference；Recording direction information generating unit, for choosing interface in the recording direction according to user, to directional diagram
Target trigger action generates recording direction information；
Recording direction determining module, for determining recording direction according to the recording direction information；
Recording file generation module, for opening at least three microphones on mobile terminal according to identified recording direction,
And the recorded audio signals of at least three microphone are obtained, and generate recording file, wherein the recording file generation module packet
It includes:
Recorded audio signals acquiring unit, for obtaining recorded audio signals by least three microphones on mobile terminal；
Default recording parameter acquiring unit, for obtaining default recording parameter accordingly according to identified recording direction；
Target recorded audio signals determination unit, for determining the target in the recorded audio signals according to acquired default recording parameter
Recorded audio signals；
Recording file generation unit for handling the target recorded audio signals, and generates recording file.
7. device according to claim 6, which is characterized in that the recording direction information generating unit is specifically used for:
It is chosen on interface according to user in the recording direction, recording direction information is generated to the touch operation of directional icon；Or,
It is chosen on interface according to user in the recording direction, the direction of directional icon is directed to by the finger dragged in the circumference
Operation generates recording direction information.
8. device according to claim 6, which is characterized in that the recording file generation unit is specifically used for:
The gain for promoting the target recorded audio signals, obtains the first recorded audio signals；
The gain for reducing other recorded audio signals in the recorded audio signals in addition to the target recorded audio signals, obtains the second recording
Signal；
Recording file is generated according to first recorded audio signals and second recorded audio signals.
9. device according to claim 8, which is characterized in that further include:
Target sound source recorded audio signals obtain module, for before monitoring recording direction selection event, by mobile terminal
At least three microphones obtain stationary sound source recorded audio signals；
Conversion module, for the recording letter respectively to the corresponding stationary sound source of each microphone at least three microphone
Number carry out Fourier transform, obtain corresponding frequency spectrum data；
Computing module, it is corresponding in the corresponding frequency spectrum data of every two microphone at least three microphone for calculating
The difference of amplitude and/or the difference of phase；
Default recording parameter generation module generates the fixed sound for the difference according to the poor and/or described phase of the amplitude
Source is currently located the corresponding default recording parameter of recording direction；
The default recording parameter acquiring unit, is specifically used for:
According to identified recording direction from all default recording parameters that the default recording parameter generation module generates, obtain
Take default recording parameter corresponding with identified recording direction.
10. device according to claim 9, which is characterized in that the target recorded audio signals determination unit is specifically used for:
Fourier transform is carried out to the corresponding recorded audio signals of each microphone at least three microphone respectively, obtains phase
The frequency spectrum data answered；
For each frequency, calculate corresponding in the corresponding frequency spectrum data of every two microphone at least three microphone
The difference of amplitude and/or the difference of phase；
Judge amplitude calculated difference and/or phase difference whether with the amplitude that includes in acquired default recording parameter
The difference of difference and/or phase matches, if so, determining that recorded audio signals corresponding to current frequency are target recorded audio signals.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106024035B (en) * | 2016-05-04 | 2019-06-28 | 珠海市魅族科技有限公司 | A kind of method and terminal of audio processing |
| CN107920157A (en) * | 2016-10-09 | 2018-04-17 | 中兴通讯股份有限公司 | A kind of way of recording, device and equipment |
| WO2018076387A1 (en) * | 2016-10-31 | 2018-05-03 | 华为技术有限公司 | Directional sound recording device and electronic device |
| CN106406809B (en) * | 2016-12-21 | 2023-06-23 | 维沃移动通信有限公司 | Sound signal processing method and mobile terminal |
| CN107134285A (en) * | 2017-03-17 | 2017-09-05 | 宇龙计算机通信科技(深圳)有限公司 | Audio data play method, voice data playing device and terminal |
| CN107343101B (en) * | 2017-07-05 | 2019-11-12 | 广东小天才科技有限公司 | Method, device, equipment and storage medium for realizing directional recording |
| CN108076300B (en) * | 2017-12-15 | 2020-07-07 | Oppo广东移动通信有限公司 | Video processing method, video processing device and mobile terminal |
| CN108538320B (en) * | 2018-03-30 | 2020-09-11 | Oppo广东移动通信有限公司 | Recording control method and device, readable storage medium and terminal |
| JP7396029B2 (en) * | 2019-12-23 | 2023-12-12 | ティアック株式会社 | Recording and playback device |
| CN112449282B (en) * | 2020-11-10 | 2022-06-17 | 北京安达斯信息技术有限公司 | Microphone array sound direction identification method based on amplitude comparison |
| CN112839285A (en) * | 2021-01-07 | 2021-05-25 | 惠州Tcl移动通信有限公司 | Recording method, terminal and storage medium |
| CN113099031B (en) * | 2021-02-26 | 2022-05-17 | 华为技术有限公司 | Sound recording method and related equipment |
| CN113067939A (en) * | 2021-03-16 | 2021-07-02 | 读书郎教育科技有限公司 | Directional recording control system and method of mobile terminal |
| CN113539260A (en) * | 2021-06-29 | 2021-10-22 | 广州小鹏汽车科技有限公司 | Voice communication method and device based on vehicle |
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