CN106535060A - Pickup control method, audio frequency playing method, and pickup control device - Google Patents
Pickup control method, audio frequency playing method, and pickup control device Download PDFInfo
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Abstract
The invention discloses a pickup control method, an audio frequency playing method, and a pickup control device. The pickup control method comprises steps that during pickup, user simulation is carried out, and position information of a pickup and position information of a sound source with respect to a simulation user are determined; a first audio frequency parameter is determined; the first audio frequency parameter is used to express time difference value information of audio frequency from the pickup to the left ear and the right ear of the simulation user; the pickup is used for the audio frequency signal acquisition of the sound source, and the acquired audio frequency signal is processed to acquire first audio frequency information; the first audio frequency information is used to carry the position information of the pickup with respect to the simulation user and the first audio frequency parameter; during the audio frequency playing, the current position information of the user is acquired; the first audio frequency information is parsed, and the audio frequency signal acquired by the pickup, the position information of the pickup with respect to the simulation user, and the first audio frequency parameter are acquired; and the audio frequency playing is carried out by adjusting the audio frequency playing parameter of the audio frequency signal based on the above mentioned acquired information.
Description
Technical field
The present invention relates to multimedia technology field, more particularly to a kind of pick-up control method, audio frequency playing method
And device.
Background technology
With the continuous progress of multimedia technology, user cannot increasingly meet what low bit rate audio coding brought
Tonequality is lost, and pursues high code check, high-fidelity, stereosonic audio frequency effect.
Existing stereo equipment make use of human ear produce perception to level difference, time difference, phase difference etc.
The characteristics of so that user produces sense of space direction to the audio frequency heard, however, stereo being set due to existing
It is standby to carry out when audio frequency is played, being not aware that the particular location of user, it is impossible to reduce stereophonic effect well.
Therefore it provides the technical scheme that a kind of pickup control and audio frequency are played, can carry out user in pickup
Simulation, and the physical location according to user carries out audio frequency broadcasting, realizes that optimal sound field is rebuild, improves user's body
Test, it has also become problem demanding prompt solution.
The content of the invention
In view of this, the embodiment of the present invention is expected to provide a kind of pick-up control method, audio frequency playing method and dress
Put, user's simulation can be carried out in pickup, and the physical location control audio frequency according to user is played, and is realized
Optimal sound field is rebuild, improves Consumer's Experience.
To reach above-mentioned purpose, what the technical scheme of the embodiment of the present invention was realized in：
A kind of pick-up control method is embodiments provided, methods described includes：
User's simulation is carried out, and determines the positional information of sound pick-up and source of sound relative analog user；
First audio frequency parameter is determined based on the positional information of the sound pick-up and source of sound relative analog user；It is described
First audio frequency parameter is used to characterize the time that the audio frequency reaches the analog subscriber or so ear from the sound pick-up
Difference information；
Control the sound pick-up carries out audio signal sample to source of sound, and at the audio signal that collects
Reason obtains the first audio-frequency information；First audio-frequency information carries the position of the sound pick-up relative analog user
Information and first audio frequency parameter.
In such scheme, the positional information based on the sound pick-up and source of sound relative analog user determines
One audio frequency parameter includes：
Determine the second audio frequency parameter, and based on second audio frequency parameter, the sound pick-up and source of sound with respect to mould
The positional information for intending user determines the first audio frequency parameter；Wherein, second audio frequency parameter is used to characterize audio frequency
From sound source position to the time difference information of the left and right ear of the analog subscriber.
In such scheme, the described pair of audio signal for collecting carries out process and obtains the first audio-frequency information including：
The audio signal for collecting is converted into into digital audio and video signals, based on the sound pick-up relative analog user
Positional information and first audio frequency parameter digital audio and video signals are carried out coding obtain the first audio frequency letter
Breath, so that first audio-frequency information carries the positional information of the sound pick-up relative analog user and described the
One audio frequency parameter.
In such scheme, the described pair of audio signal for collecting is carried out after process obtains the first audio-frequency information,
Methods described also includes：
Send first audio-frequency information or first audio-frequency information is stored as into audio file.
The embodiment of the present invention additionally provides a kind of audio frequency playing method, obtains the first audio-frequency information, and described first
Audio-frequency information carries the positional information and the first audio frequency parameter of sound pick-up relative analog user；First audio frequency
Parameter is used to characterize the time difference information that audio frequency reaches the analog subscriber or so ear from the sound pick-up；Institute
Stating method also includes：
Audio frequency play instruction is received, and user current location information is obtained according to the audio frequency play instruction；
First audio-frequency information is parsed, the audio signal of the sound pick-up collection, the sound pick-up phase is obtained
Positional information and the first audio frequency parameter to analog subscriber；
Relative position information and first sound based on user current location information, sound pick-up and analog subscriber
Frequency parameter, the audio frequency play parameter for adjusting the audio signal carry out audio frequency broadcasting.
In such scheme, the first audio-frequency information of the acquisition includes：
Receive the first audio-frequency information or the first audio-frequency information in reading current audio file.
It is in such scheme, described to include according to audio frequency play instruction acquisition user current location information：
User is positioned according to the audio frequency play instruction, obtain user current location information；
Or, the audio frequency play instruction is parsed, in extracting the audio frequency play instruction, user is current
Positional information；
Or, it is current as user using the positional information of the analog subscriber according to the audio frequency play instruction
Positional information.
It is in such scheme, described relative with analog subscriber based on the user current location information, sound pick-up
Positional information and first audio frequency parameter, the audio frequency play parameter of the regulation audio signal carry out audio frequency and broadcast
Put including：
Relative position information based on the user current location information, sound pick-up and analog subscriber and described
One audio frequency parameter is adjusted to the audio frequency play parameter of the audio signal, and plays the sound after being adjusted
Frequency signal, so that the audio signal played reaches user or so the time difference of ear and first audio frequency parameter
Value is identical；Wherein, the audio frequency play parameter is used for the characteristic for characterizing the audio signal.
The embodiment of the present invention additionally provides a kind of pickup control device, and described device includes：First determining module,
Second determining module and control module；
First determining module, for carrying out user's simulation, and determines that sound pick-up and source of sound relative analog are used
The positional information at family；
Second determining module, for the positional information based on the sound pick-up and source of sound relative analog user
Determine the first audio frequency parameter；First audio frequency parameter is used to characterize the audio frequency from sound pick-up arrival institute
State the time difference information of analog subscriber or so ear；
The control module, carries out audio signal sample for controlling the sound pick-up to source of sound, and to collection
To audio signal carry out process and obtain the first audio-frequency information；First audio-frequency information carries the sound pick-up
The positional information of relative analog user and first audio frequency parameter.
In such scheme, second determining module specifically for determining the second audio frequency parameter, and is based on institute
The positional information for stating the second audio frequency parameter, the sound pick-up and source of sound relative analog user determines that the first audio frequency is joined
Number；Wherein, second audio frequency parameter is used to characterize audio frequency from sound source position to the left and right of the analog subscriber
The time difference information of ear.
In such scheme, the control module, specifically for the audio signal for collecting is converted into digital sound
Frequency signal, the positional information and first audio frequency parameter based on the sound pick-up relative analog user is to described
Digital audio and video signals carry out coding and obtain the first audio-frequency information, so that first audio-frequency information carries described picking up
The positional information and first audio frequency parameter of sound device relative analog user.
In such scheme, described device also includes sending module, for sending first audio-frequency information or inciting somebody to action
First audio-frequency information is stored as audio file.
The embodiment of the present invention additionally provides a kind of audio playing apparatus, and described device includes：Acquisition module, connect
Receive module, parsing module and processing module；
The acquisition module, for obtaining the first audio-frequency information, first audio-frequency information carries sound pick-up phase
Positional information and the first audio frequency parameter to analog subscriber；First audio frequency parameter is used to characterize audio frequency from institute
State the time difference information that sound pick-up reaches the analog subscriber or so ear；
The receiver module, for receiving audio frequency play instruction, obtains user according to the audio frequency play instruction
Current location information；
The parsing module, for parsing first audio-frequency information, obtains the audio frequency of the sound pick-up collection
Signal, the positional information of the sound pick-up relative analog user and the first audio frequency parameter；
The processing module, for the relative position based on user current location information, sound pick-up and analog subscriber
Confidence ceases and first audio frequency parameter, and the audio frequency play parameter for adjusting the audio signal carries out audio frequency broadcasting.
In such scheme, the acquisition module, specifically for receiving the first audio-frequency information or reading present video
The first audio-frequency information in file.
In such scheme, the receiver module, specifically for carrying out to user according to the audio frequency play instruction
Positioning, obtains user current location information；
Or, the audio frequency play instruction is parsed, in extracting the audio frequency play instruction, user is current
Positional information；
Or, it is current as user using the positional information of the analog subscriber according to the audio frequency play instruction
Positional information.
In such scheme, the processing module, specifically for based on the user current location information, pickup
The relative position information and first audio frequency parameter of device and analog subscriber is played to the audio frequency of the audio signal
Parameter is adjusted, and plays the audio signal after being adjusted, so that the audio signal played reaches user
The time difference of left and right ear is identical with the value of first audio frequency parameter；Wherein, the audio frequency play parameter is used for
Characterize the characteristic of the audio signal.
Pick-up control method, audio frequency playing method and device that the embodiment of the present invention is provided, in pickup,
User's simulation is carried out, and determines the positional information of sound pick-up and source of sound relative analog user；Based on the pickup
The positional information of device and source of sound relative analog user determines the first audio frequency parameter；First audio frequency parameter is used for
Characterize the time difference information that audio frequency reaches the analog subscriber or so ear from the sound pick-up；Control is described to pick up
Sound device carries out audio signal sample to source of sound, and the audio signal to collecting carries out process and obtains the first audio frequency
Information；First audio-frequency information carries the positional information and described first of the sound pick-up relative analog user
Audio frequency parameter；When audio frequency broadcasting is carried out, user current location information is obtained according to audio frequency play instruction；Solution
First audio-frequency information is analysed, the audio signal of sound pick-up collection, the sound pick-up relative analog user is obtained
Positional information and the first audio frequency parameter；Based on user current location information, the phase of sound pick-up and analog subscriber
To positional information and first audio frequency parameter, the audio frequency play parameter for adjusting the audio signal carries out audio frequency
Play；Thus, by carry out user simulation determine user be in optimal sound field when user it is relative with sound pick-up
Positional information and audio frequency reach the time difference information of the analog subscriber or so ear, and base from the sound pick-up
The audio frequency play parameter of audio signal is adjusted in the relative position information and time difference information, it is optimal to realize
Sound field is rebuild, improves Consumer's Experience.
Description of the drawings
Fig. 1 is embodiment of the present invention pick-up control method schematic flow sheet；
Fig. 2 is that embodiment of the present invention user simulates schematic diagram；
Fig. 3 is embodiment of the present invention audio frequency playing method schematic flow sheet；
Fig. 4 is that embodiment of the present invention audio frequency plays schematic diagram of a scenario；
Fig. 5 is that embodiment of the present invention pickup control device constitutes structural representation；
Fig. 6 is that embodiment of the present invention audio playing apparatus constitute structural representation.
Specific embodiment
In embodiments of the present invention, in pickup, user's simulation is carried out, and determines that sound pick-up and source of sound are relative
The positional information of analog subscriber；Is determined based on the positional information of the sound pick-up and source of sound relative analog user
One audio frequency parameter；First audio frequency parameter is used to characterize audio frequency from the sound pick-up arrival analog subscriber
The time difference information of left and right ear；Control the sound pick-up carries out audio signal sample to source of sound, and to collection
To audio signal carry out process and obtain the first audio-frequency information；First audio-frequency information carries the sound pick-up
The positional information of relative analog user and first audio frequency parameter；When audio frequency broadcasting is carried out, according to audio frequency
Play instruction obtains user current location information；First audio-frequency information is parsed, sound pick-up collection is obtained
Audio signal, the positional information of the sound pick-up relative analog user and the first audio frequency parameter；Worked as based on user
The relative position information of front position information, sound pick-up and analog subscriber and first audio frequency parameter, adjust institute
The audio frequency play parameter for stating audio signal carries out audio frequency broadcasting；The audio frequency play parameter is used to characterize the sound
The characteristic of frequency signal.
Embodiment one
Fig. 1 show one pick-up control method schematic flow sheet of the embodiment of the present invention, as shown in figure 1, this
Bright embodiment pick-up control method includes：
Step 101：User's simulation is carried out, and determines the positional information of sound pick-up and source of sound relative analog user；
Here, the sound pick-up at least one, in one embodiment, the sound pick-up has two, two
The distance between sound pick-up can empirically be worth and be set；
Source of sound when audio collection is carried out at least one, but the source of sound when audio collection is carried out has multiple
When, the positional information of the source of sound relative analog user is the crucial sounding point relative analog use in multiple sources of sound
The positional information at family, if there is no crucial sounding point in the plurality of source of sound, the source of sound relative analog user
Position be empirically worth determination.
In one embodiment, it is described carry out user simulation include：
Position relationship of the pickup control device according to default analog subscriber with sound pick-up carries out user's simulation, with
The analog subscriber is made in optimal sound field, and then hears that effect is the most real stereo；Wherein, institute
The position relationship that default analog subscriber is stated with sound pick-up can empirically be worth determination, such as：When sound pick-up has
When two, analog subscriber is located on the perpendicular bisector of two sound pick-ups and away from the ground that sound pick-up vertical range is three meters
Side, is illustrated in figure 2 user's simulation schematic diagram.
Further, it is described to determine that sound pick-up and the positional information of source of sound relative analog user include：
To carry out the position of the analog subscriber after user's simulation as reference position, it is determined that current sound pick-up and source of sound
Relative to the reference position relative position information be sound pick-up and source of sound relative analog user position letter
Breath；
In embodiments of the present invention, the sound pick-up includes two, respectively sound pick-up 1 and sound pick-up 2,
The position of hypothesis analog subscriber is that (0,0), then the coordinate position of analog subscriber or so ear is respectively the origin of coordinates
(t, 0), (- t, 0), sound pick-up 1, the position of 2 relative analog users be respectively (- x, y), (x, y),
The position of source of sound relative analog user is (p, q), as shown in Figure 2；Wherein, t values empirically can be worth into
Row setting.
Step 102：First audio frequency is determined based on the positional information of the sound pick-up and source of sound relative analog user
Parameter；
Here, first audio frequency parameter is used to characterize audio frequency from the sound pick-up arrival analog subscriber left side
The time difference information of auris dextra；
In order to ensure the analog subscriber in the optimal sound field, that is, best stereo of effect is heard, needs to protect
Card audio frequency reaches the time difference of the analog subscriber or so ear from the sound source position, with audio frequency from source of sound Jing
The time difference that the sound pick-up reaches the analog subscriber or so ear is identical；In embodiments of the present invention, make
First audio frequency parameter is Δ, based on sound pick-up 2, can be obtained according to Fig. 2：(n-m)/v=(e+c)/v+ Δs
- (b+d)/v, due to d=e, can obtain：Δ=(n-m+b-c)/v；(1), wherein, n, m be respectively source of sound extremely
The distance of the analog subscriber or so ear, d for sound pick-up 1 to user's auris dextra distance, e be sound pick-up 2 to
The distance of the left ear of user, b, c are respectively the distance of source of sound to sound pick-up 1,2, and v is transfer voice speed；
I.e.：
The first audio frequency parameter value, i.e. audio frequency can be obtained according to (2) formula the analog subscriber is reached from the sound pick-up
The time difference of left and right ear, and sound field is rebuild, when the audio frequency that will be collected is played out, the audio frequency is made
Audio frequency for a certain sound channel is played by audio playing apparatus, need to only be ensured that audio frequency is reached from audio playing apparatus and be used
The time difference of family or so ear reaches the time difference of the analog subscriber or so ear with audio frequency from the sound pick-up
Identical, user can hear best stereo of effect.
Step 103：Control the sound pick-up carries out audio signal sample, and the audio frequency to collecting to source of sound
Signal carries out process and obtains the first audio-frequency information；
Here, the described pair of audio signal for collecting carries out process and obtains the first audio-frequency information including：
The audio signal for collecting is converted into into digital audio and video signals, based on the sound pick-up relative analog user
Positional information and first audio frequency parameter digital audio and video signals are carried out coding obtain the first audio frequency letter
Breath, so that first audio-frequency information carries the positional information of the sound pick-up relative analog user and described the
One audio frequency parameter；
Wherein, it is described the audio signal for collecting is converted into into digital audio and video signals after, methods described may be used also
To include：Denoising is filtered to the digital audio and video signals after conversion, to improve audio quality.
In one embodiment, after this step, methods described also includes：Send first audio-frequency information or
First audio-frequency information is stored as into audio file；
Wherein, the transmission first audio-frequency information includes：First audio frequency is believed by pickup control device
Breath is sent to audio playing apparatus in the form of code stream, so as to play after the audio playing apparatus are processed to which；
Therefore, the pickup control device can both be individually present, and also can integrate with the audio playing apparatus；
It is described first audio-frequency information is stored as into audio file to include：By the first audio-frequency information burning
To record disk, audio file is generated；Or store first audio-frequency information to depositing in the form of audio file
Reservoir；The memory can be mobile memory.
Embodiment two
Fig. 3 is embodiment of the present invention audio frequency playing method schematic flow sheet, as shown in figure 3, the present invention is implemented
Example audio frequency playing method includes：
Step 300：Obtain the first audio-frequency information；
Here, after first audio-frequency information is processed to the audio signal for collecting for pickup control device
The audio-frequency information for obtaining；First audio-frequency information carries the positional information of sound pick-up relative analog user and the
One audio frequency parameter；First audio frequency parameter is used to characterize audio frequency from the sound pick-up arrival analog subscriber
The time difference information of left and right ear.
In one embodiment, the first audio-frequency information of the acquisition includes：
Receive the first audio-frequency information or the first audio-frequency information in reading current audio file；
Wherein, the first audio-frequency information of the reception includes：Receive what pickup control device was sent with code stream form
First audio-frequency information；Accordingly, after audio playing apparatus receive first audio-frequency information, methods described
Can also include：First audio-frequency information that the audio playing apparatus storage is received；Thus, follow-up institute
State the repeatable broadcasting audio frequency of audio playing apparatus and receive without the need for repetition；
The first audio-frequency information in the reading current audio file includes：Directly read in memory or record disk
First audio-frequency information in the form of audio file of storage.
Step 301：Audio frequency play instruction is received, and user current location is obtained according to the audio frequency play instruction
Information；
Here, the audio frequency play instruction can be key command or phonetic order that user sends etc.；
It is described to include according to audio frequency play instruction acquisition user current location information：
User is positioned according to the audio frequency play instruction, obtain user current location information；For example：
The audio frequency play instruction is phonetic order, sound source, i.e. user can be positioned based on phase difference；
Or, the audio frequency play instruction is parsed, in extracting the audio frequency play instruction, user is current
Positional information；
Or, it is current as user using the positional information of the analog subscriber according to the audio frequency play instruction
Positional information.
Step 302：First audio-frequency information is parsed, audio signal, the institute of the sound pick-up collection is obtained
State the positional information and the first audio frequency parameter of sound pick-up relative analog user；
Here, as pickup control device has been mixed into institute when processing to the audio signal that sound pick-up is gathered
The positional information and the first audio frequency parameter of sound pick-up relative analog user are stated, that is, the first audio frequency letter for obtaining
Breath carries the positional information and the first audio frequency parameter of sound pick-up relative analog user, therefore, audio playing apparatus
The audio signal of the sound pick-up collection, the sound pick-up can be obtained by decoding first audio-frequency information
The positional information of relative analog user and the first audio frequency parameter.
Step 303：Relative position information based on user current location information, sound pick-up and analog subscriber and
First audio frequency parameter, the audio frequency play parameter for adjusting the audio signal carry out audio frequency broadcasting；
Here, the audio frequency play parameter is used for the characteristic for characterizing the audio signal, such as：Phase place, frequency,
Loudness etc..
In one embodiment, this step is specifically included：Based on the user current location information, sound pick-up with
The audio frequency play parameter of the relative position information of analog subscriber and first audio frequency parameter to the audio signal
It is adjusted, and plays the audio signal after being adjusted, so that the audio signal played reaches user or so
The time difference of ear is identical with the value of first audio frequency parameter；
Audio playing apparatus of the present invention include at least two players, because for stereo sound field,
The player of two separate channels is needed at least；
In embodiments of the present invention, the audio playing apparatus include two players, respectively player 1
And player 2, as shown in figure 4, being based on player 2, believe according to relative position of the sound pick-up with analog subscriber
Breath, make the position coordinates of analog subscriber for (0,0), the position of the relatively described analog subscriber of the player 2
Coordinate is (x, y), due in actual applications, the distance between player 1 and player 2 and sound pick-up 1
It is not necessarily equal with the distance of sound pick-up 2, therefore, make the position of the relatively described analog subscriber of player 1 sit
Be designated as (i, j), and assume the relatively described analog subscriber of active user or so ear position coordinates be (- w ,-f),
(- z ,-f)；
As the time difference that the audio signal played reaches user or so ear need to be with the value of first audio frequency parameter
It is identical, i.e., with to carry out audio frequency when user simulates identical from the time difference that sound pick-up reaches analog subscriber or so ear；
Based on player 2, when the distance between player 1 and player 2 and sound pick-up 1 and the distance of sound pick-up 2
When equal, player 1 relative to analog subscriber position coordinates for (- x, y), therefore, Δ=g/v+ Δs1- h/v,
Wherein, distances of the g for player 2 to the left ear of user, distances of the h for player 1 to user's auris dextra；Further
Adjusting player 2 carries out the slow Δ of audio frequency Playout delay1；
When the distance between player 1 and player 2 and sound pick-up 1 it is unequal with the distance of sound pick-up 2, i.e.,
The coordinate position of player 1 be different from sound pick-up 1 coordinate position when, equivalent to carry out user simulate when sound
Frequency was changed from the time difference that sound pick-up reaches analog subscriber or so ear, and then was obtained, Δ+e/v-d '/v=g/v+
Δ2- h/v, i.e. Δ2=Δ+e/v-d '/v-g/v+h/v,
Adjusting player 2 carries out the slow Δ of audio frequency Playout delay2。
It should be noted that the calculating of the embodiment of the present invention is all based on player 2, optionally, based on broadcasting
The algorithm for putting device 1 is identical.
Embodiment three
Fig. 5 is that embodiment of the present invention pickup control device constitutes structural representation；As shown in figure 5, of the invention
Embodiment pickup control device includes：First determining module 51, the second determining module 52 and control module 53；
First determining module 51, for carrying out user's simulation, and determines sound pick-up and source of sound relative analog
The positional information of user；
Second determining module 52, believes for the position based on the sound pick-up and source of sound relative analog user
Breath determines the first audio frequency parameter；First audio frequency parameter is reached from the sound pick-up for characterizing the audio frequency
The time difference information of the analog subscriber or so ear；
The control module 53, carries out audio signal sample to source of sound for controlling the sound pick-up, and to adopting
The audio signal for collecting carries out process and obtains the first audio-frequency information；First audio-frequency information carries the pickup
The positional information of device relative analog user and first audio frequency parameter；
Here, the sound pick-up at least one, in one embodiment, the sound pick-up has two, two
The distance between sound pick-up can empirically be worth and be set；
Source of sound when audio collection is carried out at least one, but the source of sound when audio collection is carried out has multiple
When, the positional information of the source of sound relative analog user is the crucial sounding point relative analog use in multiple sources of sound
The positional information at family, if there is no crucial sounding point in the plurality of source of sound, the source of sound relative analog user
Position be empirically worth determination.
In one embodiment, first determining module 51, specifically for according to default analog subscriber with pick up
The position relationship of sound device carries out user's simulation, so that the analog subscriber is in optimal sound field, and then hears
Effect is the most real stereo；Wherein, the position relationship of the default analog subscriber and sound pick-up can be with
Empirically value determination, such as：When sound pick-up has two, analog subscriber is located at the perpendicular bisector of two sound pick-ups
Where above and being three meters away from sound pick-up vertical range, user's simulation schematic diagram is illustrated in figure 2.
In one embodiment, first determining module 51, specifically for carrying out the simulation after user's simulation
The position of user is reference position, it is determined that the relative position of current sound pick-up and source of sound relative to the reference position
Confidence breath is sound pick-up and the positional information of source of sound relative analog user；
In embodiments of the present invention, the sound pick-up includes two, respectively sound pick-up 1 and sound pick-up 2,
The position of hypothesis analog subscriber is that (0,0), then the coordinate position of analog subscriber or so ear is respectively the origin of coordinates
(t, 0), (- t, 0), sound pick-up 1, the position of 2 relative analog users be respectively (- x, y), (x, y),
The position of source of sound relative analog user is (p, q), as shown in Figure 2；Wherein, t values empirically can be worth into
Row setting.
In one embodiment, second determining module 52, specifically for determining the second audio frequency parameter, and base
The first sound is determined in the positional information of second audio frequency parameter, the sound pick-up and source of sound relative analog user
Frequency parameter；Wherein, second audio frequency parameter is used to characterize audio frequency from sound source position to the analog subscriber
The time difference information of left and right ear；
In order to ensure the analog subscriber in the optimal sound field, that is, best stereo of effect is heard, needs to protect
Card audio frequency reaches the time difference of the analog subscriber or so ear from the sound source position, with audio frequency from source of sound Jing
The time difference that the sound pick-up reaches the analog subscriber or so ear is identical；In embodiments of the present invention, make
First audio frequency parameter is Δ, based on sound pick-up 2, can be obtained according to Fig. 2：(n-m)/v=(e+c)/v+ Δs
- (b+d)/v, due to d=e, can obtain：Δ=(n-m+b-c)/v；(1), wherein, n, m be respectively source of sound extremely
The distance of the analog subscriber or so ear, d for sound pick-up 1 to user's auris dextra distance, e be sound pick-up 2 to
The distance of the left ear of user, b, c are respectively the distance of source of sound to sound pick-up 1,2, and v is transfer voice speed；
I.e.：
The first audio frequency parameter value, i.e. audio frequency can be obtained according to (2) formula the analog subscriber is reached from the sound pick-up
The time difference of left and right ear, and sound field is rebuild, when the audio frequency that will be collected is played out, the audio frequency is made
Audio frequency for a certain sound channel is played by audio playing apparatus, need to only be ensured that audio frequency is reached from audio playing apparatus and be used
The time difference of family or so ear reaches the time difference of the analog subscriber or so ear with audio frequency from the sound pick-up
Identical, user can hear best stereo of effect.
In one embodiment, the control module 53, specifically for the audio signal for collecting is converted into number
Word audio signal, the positional information and first audio frequency parameter pair based on the sound pick-up relative analog user
The digital audio and video signals carry out coding and obtain the first audio-frequency information, so that first audio-frequency information carries institute
State the positional information and first audio frequency parameter of sound pick-up relative analog user.
Further, the control module 53, is additionally operable to be filtered the digital audio and video signals after conversion
Make an uproar process, to improve audio quality.
In one embodiment, described device also includes sending module 54, for sending first audio-frequency information
Or first audio-frequency information is stored as into audio file.
In one embodiment, the sending module 54, specifically for by first audio-frequency information with code stream
Form is sent to audio playing apparatus, so as to play after the audio playing apparatus are processed to which；
And for first audio-frequency information is burned onto record disk, generate audio file；Or by described
One audio-frequency information is stored to memory in the form of audio file.
It should be noted that pickup control device can both be individually present described in the embodiment of the present invention, also can be with institute
State audio playing apparatus to integrate.
Example IV
Fig. 6 is that embodiment of the present invention audio playing apparatus constitute structural representation；As shown in fig. 6, of the invention
Embodiment audio playing apparatus include：Acquisition module 61, receiver module 62, parsing module 63 and process mould
Block 64；
The acquisition module 61, for obtaining the first audio-frequency information, first audio-frequency information carries sound pick-up
The positional information of relative analog user and the first audio frequency parameter；First audio frequency parameter be used for characterize audio frequency from
The sound pick-up reaches the time difference information of the analog subscriber or so ear；
The receiver module 62, for receiving audio frequency play instruction, obtains according to the audio frequency play instruction and uses
Family current location information；
The parsing module 63, for parsing first audio-frequency information, obtains the sound of the sound pick-up collection
Frequency signal, the positional information of the sound pick-up relative analog user and the first audio frequency parameter；
The processing module 64, for relative with analog subscriber based on user current location information, sound pick-up
Positional information and first audio frequency parameter, the audio frequency play parameter of the regulation audio signal carry out audio frequency and broadcast
Put.
In one embodiment, the acquisition module 61, specifically for receiving the first audio-frequency information or reading current
The first audio-frequency information in audio file.
Further, the acquisition module 61, is sent with code stream form specifically for receiving pickup control device
The first audio-frequency information, store first audio-frequency information, or store in directly reading memory or record disk
First audio-frequency information in the form of audio file.
In one embodiment, the receiver module 62, specifically for according to the audio frequency play instruction to user
Positioned, obtained user current location information；For example：The audio frequency play instruction be phonetic order, institute
State receiver module 62 to position sound source, i.e. user based on phase difference；
Or, the audio frequency play instruction is parsed, in extracting the audio frequency play instruction, user is current
Positional information；
Or, it is current as user using the positional information of the analog subscriber according to the audio frequency play instruction
Positional information；
Here, the audio frequency play instruction can be key command or phonetic order that user sends etc..
In one embodiment, described device also includes player 65, accordingly, the processing module 64, tool
Body is for the relative position information based on the user current location information, sound pick-up and analog subscriber and described
First audio frequency parameter is adjusted to the audio frequency play parameter of the audio signal, and is played by player 65
Audio signal after being adjusted so that the audio signal played reach user or so time difference of ear with it is described
The value of the first audio frequency parameter is identical；Wherein, the audio frequency play parameter is used for the spy for characterizing the audio signal
Property；
Here, the characteristic of the audio signal can be phase place, frequency, loudness etc..
Audio playing apparatus of the present invention include at least two players, because for stereo sound field,
The player of two separate channels is needed at least；
In embodiments of the present invention, the audio playing apparatus include two players, respectively player 1
And player 2, as shown in figure 4, being based on player 2, believe according to relative position of the sound pick-up with analog subscriber
Breath, make the position coordinates of analog subscriber for (0,0), the position of the relatively described analog subscriber of the player 2
Coordinate is (x, y), due in actual applications, the distance between player 1 and player 2 and sound pick-up 1
It is not necessarily equal with the distance of sound pick-up 2, therefore, make the position of the relatively described analog subscriber of player 1 sit
Be designated as (i, j), and assume the relatively described analog subscriber of active user or so ear position coordinates be (- w ,-f),
(- z ,-f)；
As the time difference that the audio signal played reaches user or so ear need to be with the value of first audio frequency parameter
It is identical, i.e., with to carry out audio frequency when user simulates identical from the time difference that sound pick-up reaches analog subscriber or so ear；
Based on player 2, when the distance between player 1 and player 2 and sound pick-up 1 and the distance of sound pick-up 2
When equal, player 1 relative to analog subscriber position coordinates for (- x, y), therefore, Δ=g/v+ Δs1- h/v,
Wherein, distances of the g for player 2 to the left ear of user, distances of the h for player 1 to user's auris dextra；Further
：
I.e. the processing module 64 is calculated Δ according to above-mentioned formula1, and control player 2 and carry out audio frequency
The slow Δ of Playout delay1；
When the distance between player 1 and player 2 and sound pick-up 1 it is unequal with the distance of sound pick-up 2, i.e.,
The coordinate position of player 1 be different from sound pick-up 1 coordinate position when, equivalent to carry out user simulate when sound
Frequency was changed from the time difference that sound pick-up reaches analog subscriber or so ear, and then was obtained, Δ+e/v-d '/v=g/v+
Δ2- h/v, i.e. Δ2=Δ+e/v-d '/v-g/v+h/v,
I.e. the processing module 64 is calculated Δ according to above-mentioned formula2, and control player 2 and carry out audio frequency
The slow Δ of Playout delay2。
It should be noted that the calculating of processing module 64 is all based on player 2 described in the embodiment of the present invention,
Optionally, the algorithm based on player 1 is identical；In actual applications, the audio playing apparatus can be
Stereo set, such as audio amplifier etc.；
In embodiments of the present invention, the first determining module 51, second in the pickup control device determines mould
Block, control module 53 and sending module 54, the acquisition module 61, reception mould in the audio playing apparatus
Block 62, parsing module 63 and processing module 64 can by the central processing unit in terminal or server (CPU,
Central Processing Unit) or digital signal processor (DSP, Digital Signal Processor),
Or field programmable gate array (FPGA, Field Programmable Gate Array), or integrated circuit
(ASIC, Application Specific Integrated Circuit) is realized.
The above, only present pre-ferred embodiments are not intended to limit protection scope of the present invention.
Claims (16)
1. a kind of pick-up control method, it is characterised in that methods described includes：
User's simulation is carried out, and determines the positional information of sound pick-up and source of sound relative analog user；
First audio frequency parameter is determined based on the positional information of the sound pick-up and source of sound relative analog user；It is described
First audio frequency parameter is used to characterize the time difference that audio frequency reaches the analog subscriber or so ear from the sound pick-up
Information；
Control the sound pick-up carries out audio signal sample to source of sound, and at the audio signal that collects
Reason obtains the first audio-frequency information；First audio-frequency information carries the position of the sound pick-up relative analog user
Information and first audio frequency parameter.
2. method according to claim 1, it is characterised in that described based on the sound pick-up and source of sound phase
First audio frequency parameter includes to be determined to the positional information of analog subscriber：
Determine the second audio frequency parameter, and based on second audio frequency parameter, the sound pick-up and source of sound with respect to mould
The positional information for intending user determines the first audio frequency parameter；Wherein, second audio frequency parameter is used to characterize audio frequency
From sound source position to the time difference information of the left and right ear of the analog subscriber.
3. method according to claim 1 or claim 2, it is characterised in that the described pair of audio signal for collecting
Carry out process and obtain the first audio-frequency information including：
The audio signal for collecting is converted into into digital audio and video signals, based on the sound pick-up relative analog user
Positional information and first audio frequency parameter digital audio and video signals are carried out coding obtain the first audio frequency letter
Breath, so that first audio-frequency information carries the positional information of the sound pick-up relative analog user and described the
One audio frequency parameter.
4. method according to claim 1 or claim 2, it is characterised in that the described pair of audio signal for collecting
Carry out after process obtains the first audio-frequency information, methods described also includes：
Send first audio-frequency information or first audio-frequency information is stored as into audio file.
5. a kind of audio frequency playing method, it is characterised in that obtain the first audio-frequency information, the first audio frequency letter
Breath carries the positional information and the first audio frequency parameter of sound pick-up relative analog user；First audio frequency parameter is used
The time difference information of the analog subscriber or so ear is reached from the sound pick-up in sign audio frequency；Methods described
Also include：
Audio frequency play instruction is received, and user current location information is obtained according to the audio frequency play instruction；
First audio-frequency information is parsed, the audio signal of the sound pick-up collection, the sound pick-up phase is obtained
Positional information and the first audio frequency parameter to analog subscriber；
Relative position information and first sound based on user current location information, sound pick-up and analog subscriber
Frequency parameter, the audio frequency play parameter for adjusting the audio signal carry out audio frequency broadcasting.
6. method according to claim 5, it is characterised in that the first audio-frequency information of the acquisition includes：
Receive the first audio-frequency information or the first audio-frequency information in reading current audio file.
7. according to claim 5 or 6 methods describeds, it is characterised in that described broadcasting according to the audio frequency refers to
Order obtains user current location information to be included：
User is positioned according to the audio frequency play instruction, obtain user current location information；
Or, the audio frequency play instruction is parsed, in extracting the audio frequency play instruction, user is current
Positional information；
Or, it is current as user using the positional information of the analog subscriber according to the audio frequency play instruction
Positional information.
8. according to claim 5 or 6 methods describeds, it is characterised in that described based on user's present bit
The relative position information and first audio frequency parameter of confidence breath, sound pick-up and analog subscriber, adjusts the sound
The audio frequency play parameter of frequency signal carries out audio frequency to be played includes：
Relative position information based on the user current location information, sound pick-up and analog subscriber and described
One audio frequency parameter is adjusted to the audio frequency play parameter of the audio signal, and plays the sound after being adjusted
Frequency signal, so that the audio signal played reaches user or so the time difference of ear and first audio frequency parameter
Value is identical；Wherein, the audio frequency play parameter is used for the characteristic for characterizing the audio signal.
9. a kind of pickup control device, it is characterised in that described device includes：First determining module, second
Determining module and control module；
First determining module, for carrying out user's simulation, and determines that sound pick-up and source of sound relative analog are used
The positional information at family；
Second determining module, for the positional information based on the sound pick-up and source of sound relative analog user
Determine the first audio frequency parameter；First audio frequency parameter is used to characterize audio frequency from the sound pick-up arrival mould
Intend the time difference information of user or so ear；
The control module, carries out audio signal sample for controlling the sound pick-up to source of sound, and to collection
To audio signal carry out process and obtain the first audio-frequency information；First audio-frequency information carries the sound pick-up
The positional information of relative analog user and first audio frequency parameter.
10. device according to claim 9, it is characterised in that second determining module, it is concrete to use
In it is determined that the second audio frequency parameter, and it is based on second audio frequency parameter, the sound pick-up and source of sound relative analog
The positional information of user determines the first audio frequency parameter；Wherein, second audio frequency parameter be used for characterize audio frequency from
Time difference information of the sound source position to the left and right ear of the analog subscriber.
11. according to claim 9 or 10 described devices, it is characterised in that the control module, concrete to use
In the audio signal for collecting is converted into digital audio and video signals, based on the sound pick-up relative analog user's
Positional information and first audio frequency parameter carry out coding and obtain the first audio frequency letter to the digital audio and video signals
Breath, so that first audio-frequency information carries the positional information of the sound pick-up relative analog user and described the
One audio frequency parameter.
12. according to claim 9 or 10 described devices, it is characterised in that described device also includes sending mould
Block, for sending first audio-frequency information or first audio-frequency information being stored as audio file.
13. a kind of audio playing apparatus, it is characterised in that described device includes：Acquisition module, reception mould
Block, parsing module and processing module；
The acquisition module, for obtaining the first audio-frequency information, first audio-frequency information carries sound pick-up phase
Positional information and the first audio frequency parameter to analog subscriber；First audio frequency parameter is used to characterize audio frequency from institute
State the time difference information that sound pick-up reaches the analog subscriber or so ear；
The receiver module, for receiving audio frequency play instruction, obtains user according to the audio frequency play instruction
Current location information；
The parsing module, for parsing first audio-frequency information, obtains the audio frequency of the sound pick-up collection
Signal, the positional information of the sound pick-up relative analog user and the first audio frequency parameter；
The processing module, for the relative position based on user current location information, sound pick-up and analog subscriber
Confidence ceases and first audio frequency parameter, and the audio frequency play parameter for adjusting the audio signal carries out audio frequency broadcasting.
14. according to claim 13 described device, it is characterised in that the acquisition module, specifically for connecing
Receive the first audio-frequency information or the first audio-frequency information in reading current audio file.
15. according to claim 13 or 14 described devices, it is characterised in that the receiver module, specifically
For positioning to user according to the audio frequency play instruction, user current location information is obtained；
Or, the audio frequency play instruction is parsed, in extracting the audio frequency play instruction, user is current
Positional information；
Or, it is current as user using the positional information of the analog subscriber according to the audio frequency play instruction
Positional information.
16. according to claim 13 or 14 described devices, it is characterised in that the processing module, specifically
For the relative position information based on the user current location information, sound pick-up and analog subscriber and described
One audio frequency parameter is adjusted to the audio frequency play parameter of the audio signal, and plays the sound after being adjusted
Frequency signal, so that the audio signal played reaches user or so the time difference of ear and first audio frequency parameter
Value is identical；Wherein, the audio frequency play parameter is used for the characteristic for characterizing the audio signal.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106954125A (en) * | 2017-03-29 | 2017-07-14 | 联想(北京)有限公司 | Information processing method and audio frequency apparatus |
| CN107968974A (en) * | 2017-12-07 | 2018-04-27 | 北京小米移动软件有限公司 | Microphone control method, system, microphone and storage medium |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1991011079A1 (en) * | 1990-01-19 | 1991-07-25 | Sony Corporation | Apparatus for reproducing acoustic signals |
| CN101583064A (en) * | 2009-06-26 | 2009-11-18 | 电子科技大学 | Micro audio directional loudspeaker with three dimension soundeffect |
| CN102804806A (en) * | 2009-06-23 | 2012-11-28 | 诺基亚公司 | Method and apparatus for processing audio signals |
| CN103796150A (en) * | 2012-10-30 | 2014-05-14 | 华为技术有限公司 | Processing method, device and system of audio signals |
| CN104125524A (en) * | 2013-04-23 | 2014-10-29 | 华为技术有限公司 | Sound effect adjustment method, apparatus and devices |
-
2015
- 2015-09-14 CN CN201510583338.9A patent/CN106535060B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1991011079A1 (en) * | 1990-01-19 | 1991-07-25 | Sony Corporation | Apparatus for reproducing acoustic signals |
| CN102804806A (en) * | 2009-06-23 | 2012-11-28 | 诺基亚公司 | Method and apparatus for processing audio signals |
| CN101583064A (en) * | 2009-06-26 | 2009-11-18 | 电子科技大学 | Micro audio directional loudspeaker with three dimension soundeffect |
| CN103796150A (en) * | 2012-10-30 | 2014-05-14 | 华为技术有限公司 | Processing method, device and system of audio signals |
| CN104125524A (en) * | 2013-04-23 | 2014-10-29 | 华为技术有限公司 | Sound effect adjustment method, apparatus and devices |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106954125A (en) * | 2017-03-29 | 2017-07-14 | 联想(北京)有限公司 | Information processing method and audio frequency apparatus |
| CN107968974A (en) * | 2017-12-07 | 2018-04-27 | 北京小米移动软件有限公司 | Microphone control method, system, microphone and storage medium |
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|---|---|
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