CN109471609A - K sings projection integration machine and its karaoke method - Google Patents
K sings projection integration machine and its karaoke method Download PDFInfo
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- CN109471609A CN109471609A CN201811426240.2A CN201811426240A CN109471609A CN 109471609 A CN109471609 A CN 109471609A CN 201811426240 A CN201811426240 A CN 201811426240A CN 109471609 A CN109471609 A CN 109471609A
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- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/16—Sound input; Sound output
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- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/382—Information transfer, e.g. on bus using universal interface adapter
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Abstract
The present invention provides a kind of K song projection integration machine and its karaoke method, the K song projection integration machine includes: voice input module, including microphone and wireless transmission chip；K sings module, including the first main control chip, the USB sound card that is connected to the first main control chip, is wirelessly connected in wireless receiving chip, the first ADC converter and the first DAC converter of wireless transmission chip；Projection module is switched including the second main control chip with K song module communication connection, Path selection；The control terminal of Path selection switch is connected to the second main control chip, and the first controlled terminal of Path selection switch is connected to the first main control chip；Sound output module is connected to the second controlled terminal of Path selection switch.The present invention is small in size, easy to carry, and the K song projection integration machine provided through the invention, which may not need supplementary payments K song expense, can carry out home entertaining K song, and cost of activities and time cost are low, can avoid noisy closed environment, greatly improve user experience.
Description
Technical field
The invention belongs to K to sing technical field, be to be related to a kind of K song projection integration machine and its karaoke method more specifically.
Background technique
With the development of science and technology and the improvement of people's living standards, K song have become friend's party either relatives
A kind of very universal life style amused and diverted oneself reunited, this entertainment way can promote the emotion between people and people,
It can release stress；But KTV is gone to go in place of K song Shortcomings to be: first, it has not been convenient to, it cannot sing anywhere or anytime, because
This, increases the cost of activities and time cost of user K song；In addition, the airtight space of KTV, environment is noisy, for preference peace and quiet
But (especially older or young group) often keeps someone at a respectful distance for philharmonic people, furthermore, the consumption price of KTV
The obstacle of middle low consumption person crowd action can be become.Therefore, family K sings the selection that system is increasingly becoming more families.
But the device core component part of family K song system must have screen, microphone and sound equipment.The prior art
In, family K sings system there are mainly two types of scheme:
The first family K song system relies on TV, song-order machine of arranging in pairs or groups, additional a pair of microphone.Microphone and point
The docking of song machine, song-order machine are used to handle the reverberation of microphone voice and background sound, in the audio-video that K song is shown by TV
Hold.This kind of scheme is disadvantageous in that: since all audio-video frequency contents are all necessarily dependent upon the output of TV, then meaning
The K song scene TV that must arrange in pairs or groups just can be used, lead to portability deficiency, furthermore the size of mainstream TV is probably in 45-65
Between very little, and the acoustics that TV carries is also irregular, is unable to satisfy client for large-size screen monitors, high tone quality and portability
K sings demand.
Second of family K song system relies on projector, the microphone with external dongle (Dongle) of arranging in pairs or groups.Wheat
Data connection is realized by external dongle before gram wind and projector, utilizes K song APP (such as whole people K song) that projection is internal
Export the sound of K song after reverberation to realize voice and background accompaniment sound by the display interface and audio interface that project itself again
Video content.The program is disadvantageous in that: all reverberation, and the audio effect processings such as special efficacy must all rely on projector itself and lead
The software of die terminals is handled, and such audio final process effect has apparent time delay, easily causes voice and accompaniment
It is asynchronous.And unusual occupying system resources, cause system Caton.
Summary of the invention
The purpose of the present invention is to provide a kind of K song projection integration machine and its karaoke methods, ask for solving above-mentioned technology
Topic.
To achieve the above object, the technical solution adopted by the present invention is that: a kind of K song projection integration machine is provided, comprising:
Shell, is used to support and protection is mounted on the intracorporal internal framework of the shell；
Voice input module, including the microphone and wireless transmission chip for acquiring voice data, the wireless transmission core
Piece is used to export the voice data of the microphone acquisition by wireless signal；
K sings module, is mounted in the shell, including the first main control chip, is connected to the USB of first main control chip
Sound card is wirelessly connected in wireless receiving chip, the first ADC converter and the first DAC converter of the wireless transmission chip；Institute
It states wireless receiving chip and first main control chip is connected to by the first ADC converter；The wireless receiving chip connects
Receive the voice data that the wireless transmission chip is sent；
Projection module, is mounted in the shell and for projecting video content to be played, including with the K
Sing the second main control chip, the Path selection switch of module communication connection；Second main control chip is connected by the USB sound card
In first main control chip；The control terminal of the Path selection switch is connected to second main control chip, the path choosing
The first controlled terminal for selecting switch is connected to first main control chip；
Sound output module is mounted in the shell, and the sound output module is connected to first main control chip,
The sound output module is also attached to the second controlled terminal of the Path selection switch.
In one embodiment, the sound output module includes the audio effect processing core for being connected to first main control chip
Piece, the audio frequency power amplifier chip for being connected to the audio effect processing chip and the loudspeaker for being connected to the audio frequency power amplifier chip, it is described
Audio effect processing chip and the audio frequency power amplifier chip are mounted in the shell, and the loudspeaker adaptation, which is installed on the shell, to be set
On the location hole set.
In one embodiment, the K song projection integration machine further includes for providing electrical power module, the power module
Including the electricity for being internal or external at the battery of the shell, may connect to the power supply line of external power supply or being set on the shell
One of source socket is a variety of；And/or
The handle for extracting the K song projection integration machine is additionally provided on the shell, the handle is by being arranged in institute
The fixation device for stating shell opposite sides is removably connected on the shell；And/or
The mounting hole for being fixedly mounted on K song projection integration machine on external component is additionally provided on the shell,
The mounting hole is threaded hole；And/or
The shell is equipped with the third USB interface for grafting radio receiver, the radio receiver connection
In second main control chip；The radio receiver is used for the control instruction of wireless receiving peripheral hardware sound console, and will be described
Sound effect control instruction is transmitted to second main control chip.
In one embodiment, first main control chip is equipped with UART interface, and second main control chip passes through described
UART interface is connected to first main control chip；And/or
First main control chip is equipped with I2S interface, and the first controlled terminal of the Path selection switch passes through the I2S
Interface is connected to first main control chip.
In one embodiment, first main control chip is equipped with the first USB interface, and second main control chip is equipped with
Secondary USB interface, the USB sound card are connected to first main control chip, and the USB sound by first USB interface
Card is connected to second main control chip by the secondary USB interface；And/or
The wireless receiving chip is U sections of reception chips；And/or
First main control chip is equipped with R/L interface, and first main control chip is connected to institute by the R/L interface
State sound output module.
In one embodiment, first main control chip is equipped with the first GPIO interface, and second main control chip can connect
It is connected to first main control chip, and second main control chip can transmit control instruction to institute by first GPIO interface
State the first main control chip；And/or
Second main control chip is equipped with the second GPIO interface, and the control terminal of Path selection switch passes through described the
Two GPIO interfaces are connected to second main control chip.
The present invention also provides a kind of karaoke methods of K song projection integration machine, comprising the following steps:
When receiving K song instruction, the first main control chip receives the first digital signal that the first ADC converter is sent and the
The second digital signal that two main control chips are sent；First digital signal is to transmit wirelessly chip in the people for obtaining microphone acquisition
After sound data, the voice data are sent to the first ADC converter by wireless receiving chip, and pass through described the
One ADC converter is by digital signal made of the voice data conversion；Second digital signal is the second master control core
Piece digital signal corresponding to the specified accompanying song for including in acquisition and K song instruction；
After first digital signal and second digital signal are carried out reverberation processing by first main control chip,
Generate third digital signal；
The third digital signal is converted to the first simulation by first DAC converter by first main control chip
After signal, first analog signal is sent to sound output module and is played out.
In one embodiment, described first analog signal is sent to the sound output module to play out, it wraps
It includes:
First analog signal is sent to the audio effect processing chip by first main control chip；
The audio effect processing chip by first analog signal be converted to the 4th digital signal and to it is described 4th number
Signal carries out audio effect processing；
The 4th digital signal after carrying out audio effect processing is converted to the second simulation letter by the audio effect processing chip
After number, second analog signal is sent to audio frequency power amplifier chip, the audio frequency power amplifier chip believes second simulation
Number carry out audio signal amplification after, will by loudspeaker play amplify audio signal after second analog signal；Or
The 4th digital signal after carrying out audio effect processing is sent to audio frequency power amplifier core by the audio effect processing chip
Piece, after the 4th digital signal is carried out audio signal amplification by the audio frequency power amplifier chip, after amplification audio signal
The 4th digital signal be converted to the second analog signal, and play second analog signal by loudspeaker.
In one embodiment, described when receiving K song instruction, the first main control chip receives what the second main control chip was sent
Second digital signal, comprising:
When receiving K song instruction, first main control chip receives second main control chip and is sent by USB sound card
The second digital signal；Or
When receiving K song instruction, first main control chip receives second number that the first DAC converter is sent
Signal；Wherein, second digital signal is transmitted to first main control chip via following procedure: receiving K song instruction
When, second main control chip connects the first master control core by the first controlled terminal of the second GPIO interface control path selection switch
Piece, and the K is sung to third analog signal corresponding to the specified accompanying song for including in instruction, it is suitable by second control terminal
Secondary the first controlled terminal switched by the Path selection and I2S interface are sent to the first DAC converter, and the first DAC turns
After the third analog signal is converted to the second digital signal by parallel operation, first main control chip receives the first DAC
Second digital signal after converter conversion.
In one embodiment, when receiving control instruction, first main control chip is according to the control instruction to institute
It states the first digital signal or/and second digital signal carries out audio effect processing；The control instruction is the second master control core
Piece is sent to first main control chip by USB sound card or UART interface.
The beneficial effect of K song projection integration machine provided by the invention and its karaoke method is: compared with prior art, this
Multiple interfaces are integrated in K song module built in invention K song projection integration machine, are removably attachable to by different above-mentioned interfaces
Projection module, sound output module, the K song module can respond the controls such as sound effect control and the change of voice control of projection module transmitting
Instruction, at the same by projection module transmitting accompaniment tone and voice input module wireless transmission voice data handled after reality
Existing reverberation, then played out by sound output module.The present invention is small in size, easy to carry；And by each module of K to reverberation and
Audio is handled, and treatment effeciency is improved, and reduces the load of projection module, reduces the time delay of sound broadcasting；And it is logical
Home entertaining K song can be carried out by crossing K provided by the invention song projection integration machine and may not need supplementary payments K song expense, be taken action
Cost and time cost are low, can avoid noisy closed environment, greatly improve user experience.
Detailed description of the invention
It to describe the technical solutions in the embodiments of the present invention more clearly, below will be to embodiment or description of the prior art
Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description is only of the invention some
Embodiment for those of ordinary skill in the art without any creative labor, can also be according to these
Attached drawing obtains other attached drawings.
Fig. 1 is the block diagram that the K that one embodiment of the invention provides sings projection integration machine；
Fig. 2 is the flow chart for the karaoke method that the K that one embodiment of the invention provides sings projection integration machine.
Specific embodiment
In order to which technical problems, technical solutions and advantages to be solved are more clearly understood, tie below
Accompanying drawings and embodiments are closed, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only
To explain the present invention, it is not intended to limit the present invention.
It should be noted that it can be directly another when element is referred to as " being fixed on " or " being set to " another element
On one element or indirectly on another element.When an element is known as " being connected to " another element, it can
To be directly to another element or be indirectly connected on another element.
It is to be appreciated that term " length ", " width ", "upper", "lower", "front", "rear", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "top", "bottom" "inner", "outside" is that orientation based on the figure or position are closed
System, is merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning must have
Specific orientation is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include one or more of the features.In the description of the present invention, the meaning of " plurality " is two or more,
Unless otherwise specifically defined.
Projection integration machine now is sung to K provided by the invention and its karaoke method is illustrated.Referring to Fig. 1, the K song is thrown
Shadow all-in-one machine, including.
Shell (not shown), is used to support and protection is mounted on the intracorporal internal framework of the shell；The shell be plastics,
Metal or other materials with certain protection intensity, the housing outer surface is also provided with protective layer (not shown), described
Protective layer is preferably the cortex protective layer with texture, can bring better experience for user.
Voice input module 10, including the microphone 101 and wireless transmission chip 102 for acquiring voice data, the nothing
Line transmission chip 102 is used to export the voice data that the microphone 101 acquires by wireless signal；It is to be appreciated that
In another embodiment, the voice input module 10 can also include the first ADC converter that can connect each module of the K
204 connecting line (not shown), at this point, without can be by miaow by the wireless transmission chip 102 and wireless receiving chip 203
The voice data of first 101 acquisition are transferred in the first ADC converter 204 and are handled, can wireless device not
As spare when can be used.
K sings module 20, is mounted in the shell, including the first main control chip 201, is connected to first main control chip
201 USB (Universal Serial Bus, universal serial bus) sound card is wirelessly connected in the wireless transmission chip 102
Wireless receiving chip 203, the first ADC (Analog-to-Digital Converter, A/D converter) converter and
One DAC (digital analog converter, Digital to analog converter) converter；The wireless receiving chip 203 is logical
It crosses the first ADC converter 204 and is connected to first main control chip 201；The wireless receiving chip 203 receives the nothing
The voice data that line transmission chip 102 is sent.
First main control chip 201 of the K song module 20 uses professional DSP (Digital Signal Processing, Digital
Signal Processing) audio processing chip, the wireless receiving chip 203 is two, and the wireless receiving chip
203 preferably U sections (600MHZ-650MHZ) reception chips, meanwhile, the first ADC converter 204 is also two, therefore is propped up
Two-way ADC conversion is held, meanwhile, preferably, other interfaces can also be provided on first main control chip 201 according to demand
(such as USB interface, I2S interface, UART interface, GPIO interface etc.) with second main control chip 301 for being communicated.Institute
It states the first main control chip 201 to be mainly used for controlling reverberation, the change of voice, audio etc., supports a plurality of types of audio input outputs logical
Road, for example, the input or output of analog signal (analog audio signal), carry out digital signal (digital sound by USB sound card 202
Frequency signal) input or output, pass through I2S interface carry out analog signal input or output.
Projection module 30, is mounted in the shell and for projecting video content to be played, including with institute
State the second main control chip 301, Path selection switch 302 that K song module 20 communicates to connect；Second main control chip 301 passes through
The USB sound card 202 is connected to first main control chip 201；The control terminal 3021 of the Path selection switch 302 is connected to
First controlled terminal 3022 of second main control chip 301, the Path selection switch 302 is connected to first main control chip
201.Second main control chip 301 uses Amlogic T968 main control chip, and the ray machine that the projection module 30 is arranged in pairs or groups exists
When video content to be played is projected, 1080P resolution ratio, the brightness output of 500 lumens can be supported.
Sound output module 40 is mounted in the shell, and the sound output module 40 is connected to first master control
Chip 201, the sound output module 40 are also attached to the second controlled terminal 3023 of the Path selection switch 302.
Multiple interfaces are integrated in K song module 20 built in K song projection integration machine of the present invention, it can by different above-mentioned interfaces
Releasably it is connected to projection module 30, sound output module 40；Referring to Fig. 1, K sings module 20 will when receiving K song instruction
The voice data of accompaniment tone and 10 wireless transmission of voice input module that projection module 30 transmits realize reverberation after being handled,
It is played out again by sound output module 40.That is, the first main control chip 201 receives first when receiving K song instruction
The second digital signal that the first digital signal and the second main control chip 301 that ADC converter 204 is sent are sent；First number
Word signal is to transmit wirelessly chip 102 after obtaining the voice data that microphone 101 acquires, and the voice data is passed through wireless
It receives chip 203 and is sent to the first ADC converter 204, and pass through the first ADC converter 204 for the voice number
According to digital signal made of conversion；Second digital signal is that second main control chip 301 refers in acquisition and K song
Digital signal corresponding to the specified accompanying song for including in order；First main control chip 201 is by first digital signal
After carrying out reverberation processing with second digital signal, third digital signal is generated；First main control chip 201 will be described
After third digital signal is converted to the first analog signal by first DAC converter 205, by first analog signal
Sound output module 40 is sent to play out.Understandably, first main control chip 201 receives the first ADC converter 204
After the first digital signal sent, first digital signal can also be sent to described the by the USB sound card 202
Two main control chips 301, so that second main control chip 301 carries out K to voice data corresponding with first digital signal
Song marking.Meanwhile the K song module 20 can respond the control instructions such as sound effect control and the change of voice control of the transmitting of projection module 30,
When receiving control instruction, first main control chip is according to the control instruction to first digital signal or/and institute
It states the second digital signal and carries out audio effect processing；The control instruction is that second main control chip passes through USB sound card 202 or UART
Interface is sent to first main control chip.The control instruction that the control instruction can issue for peripheral hardware sound console is (such as right
Audio or the control instruction for the adjustment changed voice) or second main control chip actively issue control instruction (for example, control
The operating mode of DSP realizes more scene audios, changes voice that microphone matches reciprocity function).
The present invention is small in size, easy to carry；And reverberation and audio are handled by each module of K, improve processing effect
Rate reduces the load of projection module 30, reduces the time delay of sound broadcasting；And the K song projection one provided through the invention
Body machine, which may not need supplementary payments K song expense, can carry out home entertaining K song, and cost of activities and time cost are low, can keep away
Noisy closed environment is opened, user experience is greatly improved.
K song projection integration machine of the invention realizes home entertaining K song, takes into account in the application presided in the scenes such as speech,
Module 20 is sung by singing built-in K in projection integration machine in K, after the reverberation processing for realizing the accompaniment of voice and background, finally
It is played by sound output module 40, can so reduce the when ductility of sound broadcasting.The present invention also supports under different scenes simultaneously
Audio mode (primary sound, meeting, KTV, concert, mountain valley etc.), and mode of changing voice (primary sound, boy student, schoolgirl, Wa Wayin, evil spirit
Beast sound etc.), it is only necessary to assigning control instruction to K song module 20 by projection module 30 can be realized to its audio and the control changed voice
System, ultimate attainment large-size screen monitors K song experience can be enjoyed by allowing client to stay indoors.
In one embodiment, referring to Fig. 1, the sound output module 40 includes being connected to first main control chip
It 201 audio effect processing chip 401, the audio frequency power amplifier chip 402 for being connected to the audio effect processing chip 401 and is connected to described
The loudspeaker 403 of audio frequency power amplifier chip 402, the audio effect processing chip 401 and the audio frequency power amplifier chip 402 are mounted on the shell
In vivo, the adaptation of loudspeaker 403 is installed on the location hole being arranged on the shell.
In the present embodiment, the first analog signal is sent to the audio effect processing chip by first main control chip 201
401；First analog signal is converted to the 4th digital signal and believed the 4th number by the audio effect processing chip 401
Number carry out audio effect processing；The audio effect processing chip 401 is converted to the 4th digital signal after carrying out audio effect processing
After second analog signal, second analog signal is sent to audio frequency power amplifier chip 402, the audio frequency power amplifier chip 402
After second analog signal is carried out audio signal amplification, the institute after amplifying audio signal will be played by loudspeaker 403
State the second analog signal；Or the audio effect processing chip 401 sends the 4th digital signal after carrying out audio effect processing
To audio frequency power amplifier chip 402, after the 4th digital signal is carried out audio signal amplification by the audio frequency power amplifier chip 402,
The 4th digital signal amplified after audio signal is converted into the second analog signal, and is played by loudspeaker 403 described
Second analog signal.The audio effect processing chip 401 is the DSP audio processing chip AK7755 of HiFi rank, and by described
Audio effect processing chip 401 and the audio frequency power amplifier chip 402 can flexibly build the sound output module 40 and K and sing very much
The data link of module 20.
It understandably, further include that the 2nd ADC converter (not shown) and the 2nd DAC turn in the audio effect processing chip 401
Parallel operation (not shown), the 2nd ADC converter can will be transmitted to the conversion of the analog signal in the audio effect processing chip 401
For digital signal, second DAC converter can be converted the digital signal to be processed in the audio effect processing chip 401
To be exported after analog signal；Therefore, in one embodiment, the people acquired in the voice input module 10 by microphone 101
Sound data can be converted directly into after the first digital signal without K song module 20 (in the present invention, in not integrated K song mould
When block 20 or when K song module 20 cannot use) it is sent directly in the second main control chip 301, while second main control chip
301 (can be transmitted in the form of analog signal or digital signal first digital signal and the specified accompanying song equal
Can) progress of audio effect processing chip 401 audio effect processing is passed to simultaneously.Understandably, if the audio effect processing chip 401 connects
The signal to be processed received is analog signal, after being converted into digital signal by the 2nd ADC converter, to it
Carry out audio effect processing；If the signal a part to be processed received is analog signal, another part is digital signal, then by the
After the partial simulation signal is converted to digital signal by two ADC converters, by the digital signal and another part after conversion
Digital signal mixing carries out audio effect processing；If the signal to be processed received is digital signal, directly to the digital signal
Carry out audio effect processing；Understandably, by the digital signal of above-mentioned audio effect processing, can by second DAC converter by its
Output to audio frequency power amplifier chip 402 carries out subsequent processing after being converted to analog signal, and details are not described herein.
Understandably, second DAC converter and the 2nd ADC converter can be with the audio effect processing chips
401 are integrated into a chip, can also be arranged in except the audio effect processing chip 401 and with the audio effect processing chip 401
Communication connection.
In one embodiment, K song projection integration machine further include for providing electrical power module (not shown), it is described
Power module includes the battery for being internal or external at the shell, may connect to the power supply line of external power supply or be set to the shell
One of outlet on body is a variety of.After providing electric energy by the power module, the K song projection integration machine is
It can run well.
In one embodiment, the handle (not shown) for extracting the K song projection integration machine is additionally provided on the shell,
The handle is removably connected on the shell by the way that the fixation device (not shown) of the shell opposite sides is arranged in.Make
To be preferred, the handle can be rotated around the fixed device, also can be when not needing the handle by it to adjust its placement location
Disassembly.
In one embodiment, it is additionally provided on the shell for K song projection integration machine to be fixedly mounted on external structure
Mounting hole (not shown) on part, the mounting hole are threaded hole；It is projected that is, can be sung the K by the mounting hole
All-in-one machine is mounted in fixed bracket (not shown), and the bolt being adapted to the threaded hole can be set on the fixed bracket,
Intelligible, the mounting hole also can be replaced the fixation device of other forms, as long as fixed branch can be firmly mounted to
On frame.
In one embodiment, the shell is equipped with the third USB interface (not shown) for grafting radio receiver,
The radio receiver is connected to second main control chip 301；The radio receiver is used for wireless receiving peripheral hardware tune
(when receiving the control instruction of peripheral hardware sound console, first main control chip refers to the control instruction of sound platform according to the control
It enables and audio effect processing is carried out to first digital signal or/and second digital signal；The control instruction is described second
Main control chip is sent to first main control chip by USB sound card 202 or UART interface), and the sound effect control is instructed
It is transmitted to second main control chip 301.And when receiving K song instruction, first main control chip 201 can also receive institute
It states the second main control chip 301 and passes through the second digital signal that USB sound card 202 is sent.That is, the present invention can be with external peripheral hardware tuning
Platform carries out more perfect debugging to audio.Understandably, the radio receiver also can directly be built in the K song projection one
In body machine.
In one embodiment, first main control chip is equipped with UART interface (not shown), second main control chip
First main control chip is connected to by the UART interface；In the present embodiment, when receiving control instruction, described
One main control chip carries out at audio first digital signal or/and second digital signal according to the control instruction
Reason；The control instruction is sent to first main control chip by UART interface for second main control chip.Implement one
In example, first main control chip is equipped with I2S interface, and the first controlled terminal 3022 of the Path selection switch 302 passes through institute
It states I2S interface and is connected to first main control chip.In the present embodiment, when receiving K song instruction, the first master control core
Piece receives second digital signal that the first DAC converter 205 is sent；Wherein, second digital signal is via following mistake
Journey is transmitted to first main control chip: when receiving K song instruction, second main control chip passes through the second GPIO interface control
First controlled terminal 3022 of Path selection switch 302 processed connects the first main control chip, and specified by include in K song instruction
Third analog signal corresponding to accompanying song sequentially passes through the Path selection switch 302 by second control terminal 3021
The first controlled terminal 3022 and I2S interface be sent to the first DAC converter 205, first DAC converter 205 is by described
After three analog signals are converted to the second digital signal, first main control chip 201 receives first DAC converter 205
Second digital signal after conversion.That is, since there are first DAC converter 205 and institutes in K song module
The first ADC converter is stated, therefore, analog signal can both be handled and (be converted analog signals into after digital signal
Disengaging processing), digital signal can also be handled, while the mixed signal of digital signal and analog signal can also be carried out
It handles (after analog signal therein is converted to digital signal, being handled together with original digital signal).
Understandably, first DAC converter 205 and the first ADC converter 204 can integrate described first
In main control chip, it can also communicate to connect to be arranged except first main control chip and with first main control chip.
In one embodiment, first main control chip is equipped with the first USB interface (not shown), the second master control core
On piece is equipped with secondary USB interface (not shown), and the USB sound card 202 is connected to first master by first USB interface
Chip is controlled, and the USB sound card 202 is connected to second main control chip by the secondary USB interface；The USB sound card
202 can be integrated in first main control chip 201, and by the first USB interface for being arranged on the first main control chip 201 with
The secondary USB interface connection can so greatly reduce the volume of the K song projection integration machine, be convenient for carrying.
In one embodiment, the wireless receiving chip 203 is U sections of reception chips；It can receive the frequency of 600MHZ -650MHZ
The voice data of rate.
In one embodiment, first main control chip is equipped with R/L interface (not shown), and first main control chip is logical
It crosses the R/L interface and is connected to the sound output module 40.Voice data are mixed with accompaniment in the first main control chip 201
It rings and is converted for after third digital signal, the third digital signal is passed through the first DAC by first main control chip 201
Device 205 is converted to the first analog signal, and first analog signal is sent to sound output module by the R/L interface
40 play out.
In one embodiment, first main control chip is equipped with the first GPIO interface (not shown), second master control
Chip may connect to first main control chip, and second main control chip can be transmitted by first GPIO interface and be controlled
It instructs to first main control chip；First GPIO interface is that the spare GPIO being arranged on first main control chip connects
Mouthful, it, can be in order to which K song module 20 is when other external equipments except singing projection integration machine with the K are communicated
It is attached by first GPIO interface.Understandably, first main control chip and second main control chip also may be used
It is communicated to connect by first GPIO interface.
In one embodiment, second main control chip is equipped with the second GPIO interface (not shown), the Path selection
The control terminal 3021 of switch 302 is connected to second main control chip 301 by second GPIO interface.2nd GPIO
Interface is the GPIO interface being arranged on second main control chip, in K song projection integration machine, the first master control core
Piece and second main control chip can be communicated to connect with second GPIO interface.For example, when receiving K song instruction, institute
It states the first main control chip and receives second digital signal that the first DAC converter 205 is sent；Wherein, the second number letter
Number be transmitted to first main control chip via following procedure: when receiving K song instruction, second main control chip passes through the
Two GPIO interface control paths select the first controlled terminal 3022 of switch 302 to connect the first main control chip, and the K is sung and is instructed
In include specified accompanying song corresponding to third analog signal, the path is sequentially passed through by second control terminal 3021
The first controlled terminal 3022 and I2S interface for selecting switch 302 are sent to the first DAC converter 205, first DAC converter
After the third analog signal is converted to the second digital signal by 205, first main control chip 201 receives described first
Second digital signal after the conversion of DAC converter 205.
Modules in above-mentioned K song projection integration machine can be realized fully or partially through software, hardware and combinations thereof.
Above-mentioned each module can be embedded in the form of hardware or independently of in the processor in computer equipment, can also deposit in a software form
It is stored in the memory in computer equipment, executes the corresponding operation of the above modules in order to which processor calls.Affiliated neck
The technical staff in domain can be understood that, for convenience of description and succinctly, only with above-mentioned each functional unit or module
Divide and carry out for example, in practical application, can according to need and by above-mentioned function distribution by different functional unit or mould
Block is completed, i.e., the internal structure of described device is divided into different functional unit or module, to complete whole described above
Or partial function.
The present invention also provides a kind of karaoke methods of K song projection integration machine, please refer to Fig. 1 and Fig. 2, comprising the following steps:
S10, when receiving K song instruction, the first main control chip 201 receives the first number that the first ADC converter 204 is sent
The second digital signal that word signal and the second main control chip 301 are sent；First digital signal is that wireless transmission chip 102 exists
After obtaining the voice data that microphone 101 acquires, the voice data are sent to described first by wireless receiving chip 203
ADC converter 204, and by the first ADC converter 204 by digital signal made of the voice data conversion；It is described
Second digital signal is second main control chip 301 in the specified accompanying song institute for obtaining with including in K song instruction
Corresponding digital signal；
S20, first main control chip 201 carry out first digital signal and second digital signal at reverberation
After reason, third digital signal is generated；
S30, first main control chip 201 convert the third digital signal by first DAC converter 205
After the first analog signal, first analog signal is sent to sound output module 40 and is played out.
It is in one embodiment, described first analog signal is sent to the sound output module 40 to play out,
Include:
First analog signal is sent to the audio effect processing chip 401 by first main control chip 201；
First analog signal is converted to the 4th digital signal and counted to the described 4th by the audio effect processing chip 401
Word signal carries out audio effect processing；
The 4th digital signal after carrying out audio effect processing is converted to the second simulation by the audio effect processing chip 401
After signal, second analog signal is sent to audio frequency power amplifier chip 402, the audio frequency power amplifier chip 402 is by described
After two analog signals carry out audio signal amplification, second mould after amplifying audio signal will be played by loudspeaker 403
Quasi- signal；Or
The 4th digital signal after carrying out audio effect processing is sent to audio frequency power amplifier by the audio effect processing chip 401
Chip 402 will amplify audio after the 4th digital signal is carried out audio signal amplification by the audio frequency power amplifier chip 402
The 4th digital signal after signal is converted to the second analog signal, and plays the second simulation letter by loudspeaker 403
Number.
In one embodiment, described when receiving K song instruction, the first main control chip 201 receives the second main control chip 301
The second digital signal sent, comprising:
When receiving K song instruction, first main control chip 201 receives second main control chip 301 and passes through USB sound
The second digital signal that card 202 is sent；Or
When receiving K song instruction, first main control chip receives described second that the first DAC converter 205 is sent
Digital signal；Wherein, second digital signal is transmitted to first main control chip via following procedure: receiving K song
When instruction, second main control chip selects the first controlled terminal 3022 of switch 302 to connect by the second GPIO interface control path
The first main control chip is connect, and by third analog signal corresponding to the specified accompanying song for including in K song instruction, by described
Second control terminal 3021 sequentially passes through the first controlled terminal 3022 of the Path selection switch 302 and I2S interface is sent to first
DAC converter 205, after the third analog signal is converted to the second digital signal by first DAC converter 205, institute
It states the first main control chip 201 and receives second digital signal after first DAC converter 205 is converted.
In one embodiment, when receiving control instruction, first main control chip is according to the control instruction to institute
It states the first digital signal or/and second digital signal carries out audio effect processing；The control instruction is the second master control core
Piece is sent to first main control chip by USB sound card 202 or UART interface.
The karaoke method of K song projection integration machine of the present invention is handled reverberation and audio by each module of K, improves place
Efficiency is managed, the load of projection module 30 is reduced, reduces the time delay of sound broadcasting；And the K song provided through the invention is thrown
Shadow all-in-one machine, which may not need supplementary payments K song expense, can carry out home entertaining K song, and cost of activities and time cost are low, can
To avoid noisy closed environment, user experience is greatly improved, realizes home entertaining K song, takes into account and is presiding over the fields such as speech
Application in scape, by K song module 20 built-in in K song projection integration machine, at the reverberation for realizing the accompaniment of voice and background
It after reason, is played eventually by sound output module 40, can so reduce the when ductility of sound broadcasting.The present invention also supports simultaneously
Audio mode (primary sound, meeting, KTV, concert, mountain valley etc.) under different scenes, and mode of changing voice (primary sound, boy student, female
It is raw, Wa Wayin, Warcraft sound etc.), it is only necessary to assigning control instruction to K song module 20 by projection module 30 can be realized to its sound
The control imitated and changed voice, ultimate attainment large-size screen monitors K song experience can be enjoyed by allowing client to stay indoors.
Embodiment described above is merely illustrative of the technical solution of the present invention, rather than its limitations；Although referring to aforementioned reality
Applying example, invention is explained in detail, those skilled in the art should understand that: it still can be to aforementioned each
Technical solution documented by embodiment is modified or equivalent replacement of some of the technical features；And these are modified
Or replacement, the spirit and scope for technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution should all
It is included within protection scope of the present invention.
Claims (10)
1. a kind of K sings projection integration machine characterized by comprising
Shell, is used to support and protection is mounted on the intracorporal internal framework of the shell；
Voice input module, including the microphone and wireless transmission chip for acquiring voice data, the wireless transmission chip use
In the voice data for exporting the microphone acquisition by wireless signal；
K sings module, is mounted in the shell, including the first main control chip, is connected to the USB sound of first main control chip
Card is wirelessly connected in wireless receiving chip, the first ADC converter and the first DAC converter of the wireless transmission chip；It is described
Wireless receiving chip is connected to first main control chip by the first ADC converter；The wireless receiving chip receives
The voice data that the wireless transmission chip is sent；
Projection module is mounted in the shell and sings mould for projecting video content to be played, including with the K
The second main control chip, the Path selection switch of block communication connection；Second main control chip is connected to institute by the USB sound card
State the first main control chip；The control terminal of the Path selection switch is connected to second main control chip, and the Path selection is opened
The first controlled terminal closed is connected to first main control chip；
Sound output module is mounted in the shell, and the sound output module is connected to first main control chip, described
Sound output module is also attached to the second controlled terminal of the Path selection switch.
2. K as described in claim 1 sings projection integration machine, which is characterized in that the sound output module includes being connected to institute
The audio effect processing chip of the first main control chip is stated, the audio frequency power amplifier chip of the audio effect processing chip is connected to and is connected to institute
The loudspeaker of audio frequency power amplifier chip are stated, the audio effect processing chip and the audio frequency power amplifier chip are mounted in the shell, described
Loudspeaker adaptation is installed on the location hole being arranged on the shell.
3. K as described in claim 1 sings projection integration machine, which is characterized in that the K song projection integration machine further includes for mentioning
For electric energy power module, the power module includes the battery for being internal or external at the shell, may connect to external power supply
One of power supply line or the outlet being set on the shell are a variety of；And/or
The handle for extracting the K song projection integration machine is additionally provided on the shell, the handle is by being arranged in the shell
The fixation device of body opposite sides is removably connected on the shell；And/or
The mounting hole for being fixedly mounted on K song projection integration machine on external component is additionally provided on the shell, it is described
Mounting hole is threaded hole；And/or
The shell is equipped with the third USB interface for grafting radio receiver, and the radio receiver is connected to institute
State the second main control chip；The radio receiver is used for the control instruction of wireless receiving peripheral hardware sound console, and by the audio
Control instruction is transmitted to second main control chip.
4. K as described in claim 1 sings projection integration machine, which is characterized in that first main control chip connects equipped with UART
Mouthful, second main control chip is connected to first main control chip by the UART interface；And/or
First main control chip is equipped with I2S interface, and the first controlled terminal of the Path selection switch passes through the I2S interface
It is connected to first main control chip.
5. K as described in claim 1 sings projection integration machine, which is characterized in that first main control chip is equipped with the first USB
Interface, second main control chip are equipped with secondary USB interface, and the USB sound card is connected to institute by first USB interface
The first main control chip is stated, and the USB sound card is connected to second main control chip by the secondary USB interface；And/or
The wireless receiving chip is U sections of reception chips；And/or
First main control chip is equipped with R/L interface, and first main control chip is connected to the sound by the R/L interface
Sound output module.
6. K as described in claim 1 sings projection integration machine, which is characterized in that first main control chip is equipped with first
GPIO interface, second main control chip may connect to first main control chip, and second main control chip can pass through institute
It states the first GPIO interface and transmits control instruction to first main control chip；And/or
Second main control chip is equipped with the second GPIO interface, and the control terminal of the Path selection switch passes through described second
GPIO interface is connected to second main control chip.
7. a kind of karaoke method of K song projection integration machine, which comprises the following steps:
When receiving K song instruction, the first main control chip receives the first digital signal that the first ADC converter is sent and the second master
Control the second digital signal that chip is sent；First digital signal is to transmit wirelessly chip in the voice number for obtaining microphone acquisition
According to later, the voice data are sent to the first ADC converter by wireless receiving chip, and pass through described first
ADC converter is by digital signal made of the voice data conversion；Second digital signal is second main control chip
The digital signal corresponding to the specified accompanying song for including in acquisition and K song instruction；
After first digital signal and second digital signal are carried out reverberation processing by first main control chip, generate
Third digital signal；
The third digital signal is converted to the first analog signal by first DAC converter by first main control chip
Later, first analog signal sound output module is sent to play out.
8. the karaoke method of K song projection integration machine as claimed in claim 7, which is characterized in that described to believe first simulation
Number being sent to the sound output module plays out, comprising:
First analog signal is sent to the audio effect processing chip by first main control chip；
First analog signal is converted to the 4th digital signal and to the 4th digital signal by the audio effect processing chip
Carry out audio effect processing；
The audio effect processing chip by carry out audio effect processing after the 4th digital signal be converted to the second analog signal it
Afterwards, second analog signal is sent to audio frequency power amplifier chip, the audio frequency power amplifier chip by second analog signal into
After the amplification of row audio signal, second analog signal after amplifying audio signal will be played by loudspeaker；Or
The 4th digital signal after carrying out audio effect processing is sent to audio frequency power amplifier chip by the audio effect processing chip, institute
State audio frequency power amplifier chip will the 4th digital signal carry out audio signal amplification after, will amplification audio signal after described in
4th digital signal is converted to the second analog signal, and plays second analog signal by loudspeaker.
9. the karaoke method of K song projection integration machine as claimed in claim 7, which is characterized in that described to receive K song instruction
When, the first main control chip receives the second digital signal that the second main control chip is sent, comprising:
When receiving K song instruction, first main control chip receives that second main control chip is sent by USB sound card
Two digital signal；Or
When receiving K song instruction, first main control chip receives the second number letter that the first DAC converter is sent
Number；Wherein, second digital signal is transmitted to first main control chip via following procedure: when receiving K song instruction,
Second main control chip connects the first main control chip by the first controlled terminal of the second GPIO interface control path selection switch,
And by third analog signal corresponding to the specified accompanying song for including in K song instruction, sequentially by second control terminal
The first controlled terminal and I2S interface switched by the Path selection is sent to the first DAC converter, the first DAC conversion
After the third analog signal is converted to the second digital signal by device, first main control chip receives the first DAC and turns
Second digital signal after parallel operation conversion.
10. the karaoke method of K song projection integration machine as claimed in claim 7, which is characterized in that when receiving control instruction,
First main control chip carries out sound to first digital signal or/and second digital signal according to the control instruction
Effect processing；The control instruction is sent to first master control by USB sound card or UART interface for second main control chip
Chip.
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| CN201811426240.2A CN109471609B (en) | 2018-11-27 | 2018-11-27 | Karaoke projection integrated machine and Karaoke method thereof |
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| CN201811426240.2A CN109471609B (en) | 2018-11-27 | 2018-11-27 | Karaoke projection integrated machine and Karaoke method thereof |
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