CN107204191A - A kind of sound mixing method, device and mobile terminal - Google Patents
A kind of sound mixing method, device and mobile terminal Download PDFInfo
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- CN107204191A CN107204191A CN201710347534.5A CN201710347534A CN107204191A CN 107204191 A CN107204191 A CN 107204191A CN 201710347534 A CN201710347534 A CN 201710347534A CN 107204191 A CN107204191 A CN 107204191A
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
- G10L19/008—Multichannel audio signal coding or decoding using interchannel correlation to reduce redundancy, e.g. joint-stereo, intensity-coding or matrixing
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
- G10L21/003—Changing voice quality, e.g. pitch or formants
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
- G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
- G10L21/0316—Speech enhancement, e.g. noise reduction or echo cancellation by changing the amplitude
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Abstract
The present invention provides a kind of sound mixing method, device and mobile terminal, is related to communication technical field, this method includes：DSD digital audio signals are received using first passage, and the DSD digital audio signals are converted into DSD analoging sound signals；PCM digital audio signals are received using second channel, and the PCM digital audio signals are converted into PCM analoging sound signals；The DSD analoging sound signals and PCM analoging sound signals are passed through into operational amplifier generation simulation audio mixing output signal.The tonequality of the voice signal of mobile terminal playing is improved using the scheme of the embodiment of the present invention.
Description
Technical field
The present invention relates to communication technical field, more particularly to a kind of sound mixing method, device and mobile terminal.
Background technology
DSD (Direct Stream Digital, direct bit streaming digital) is that Sony and Philips was announced in 1996
The high-resolution digital sound equipment specification of joint development, compared to PCM (Pulse Code Modulation, pulse-code modulation recording) form,
It can provide more outstanding sound effect.
Notification voice is might have during using playing music by mobile terminal to be mixed into, notification voice is generally PCM format.Now
Need stereo process.Due to the not editability of DSD forms, audio mixing can not be realized in digital end by causing, and last result is
Music is not played, or not playing notification voice, Consumer's Experience is greatly affected.
Because the sound of PCM format can be edited, can also audio mixing, this is also current main flow mobile terminal device
Broadcast mode.And in the acoustic processing of DSD forms, main stream approach is that the sound of DSD forms is converted into PCM format, then
Audio mixing is carried out with the sound of PCM format, reconvert is into DSD forms after processing.Which not only influences the tonequality of music, also can
Music is set to bring mutation sound in transfer process.
Therefore, tonequality when existing sound mixing method to utilize mobile terminal playing voice signal is poor.
The content of the invention
The embodiment of the present invention provides a kind of sound mixing method, device and mobile terminal, to solve existing sound mixing method due to needing
Form is wanted to change the problem of the brought tonequality for playing voice signal is poor.
In a first aspect, the embodiments of the invention provide a kind of sound mixing method, applied to mobile terminal, including：
DSD digital audio signals are received using first passage, and the DSD digital audio signals are converted into DSD simulations
Voice signal；
PCM digital audio signals are received using second channel, and the PCM digital audio signals are converted into PCM simulations
Voice signal；
The DSD analoging sound signals and PCM analoging sound signals are exported by operational amplifier generation simulation audio mixing
Signal；
Wherein described first passage is connected to the end of oppisite phase of the operational amplifier；The second channel is connected to the fortune
Calculate the end of oppisite phase of amplifier；The positive terminal connection power supply of the operational amplifier.
Second aspect, the embodiment of the present invention also provides a kind of device sound mixing, including：Operational amplifier, first processing module,
Second processing module；The first processing module is connected to the end of oppisite phase of operational amplifier；The Second processing module is connected to
The end of oppisite phase of operational amplifier；The positive terminal connection power supply of the operational amplifier；
The first processing module, for receiving DSD digital audio signals using first passage, and the DSD is digital
Voice signal is converted to DSD analoging sound signals；
The Second processing module, for receiving PCM digital audio signals using second channel, and the PCM is digital
Voice signal is converted to PCM analoging sound signals；
The operational amplifier, for mixed according to the DSD analoging sound signals and the generation simulation of PCM analoging sound signals
Sound output signal.
The third aspect, the embodiment of the present invention also provides a kind of mobile terminal, includes the device sound mixing of second aspect.
So, in the embodiment of the present invention, using DSD analoging sound signals and PCM analoging sound signals, simulation audio mixing is obtained
Output signal.Therefore, obtained using the mode of the embodiment of the present invention by DSD analoging sound signals and PCM analoging sound signals
Audio mixing, it is to avoid need to change the voice signal of input that brought tonequality is poor asks in existing audio mixing mode
Topic.Thus, the tonequality of the voice signal of mobile terminal playing is improved using the scheme of the embodiment of the present invention.
Brief description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed for description of the embodiment of the present invention
The accompanying drawing to be used is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention,
For those of ordinary skill in the art, without having to pay creative labor, it can also be obtained according to these accompanying drawings
Obtain other accompanying drawings.
Fig. 1 is the flow chart of sound mixing method provided in an embodiment of the present invention；
Fig. 2 is mixer circuit structure chart in the embodiment of the present invention；
Fig. 3 is the flow chart of sound mixing method provided in an embodiment of the present invention；
Fig. 4 is the structure chart of device sound mixing provided in an embodiment of the present invention；
Fig. 5 is the structure chart of device sound mixing provided in an embodiment of the present invention；
Fig. 6 is the structure chart of acquisition module in device sound mixing provided in an embodiment of the present invention；
Fig. 7 is the structure chart of mobile terminal provided in an embodiment of the present invention；
Fig. 8 is the structure chart of mobile terminal provided in an embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is a part of embodiment of the invention, rather than whole embodiments.Based on this hair
Embodiment in bright, the every other implementation that those of ordinary skill in the art are obtained under the premise of creative work is not made
Example, belongs to the scope of protection of the invention.
Referring to Fig. 1, Fig. 1 is the flow chart of sound mixing method provided in an embodiment of the present invention, as shown in figure 1, including following step
Suddenly：
Step 101, using first passage DSD digital audio signals are received, and the DSD digital audio signals are converted to
DSD analoging sound signals.
Step 102, using second channel PCM digital audio signals are received, and the PCM digital audio signals are converted to
PCM analoging sound signals.
Step 103, the DSD analoging sound signals and PCM analoging sound signals are passed through into operational amplifier generation simulated
Audio mixing output signal.
Wherein, the first passage is connected to the end of oppisite phase of the operational amplifier；The second channel is connected to described
The end of oppisite phase of operational amplifier；The positive terminal connection power supply of the operational amplifier.
After above-mentioned DSD analoging sound signals and PCM analoging sound signals are amplified by operational amplifier, generation simulation audio mixing
Output signal.
So, in the embodiment of the present invention, using DSD analoging sound signals and PCM analoging sound signals, simulation audio mixing is obtained
Output signal.Therefore, obtained using the mode of the embodiment of the present invention by DSD analoging sound signals and PCM analoging sound signals
Audio mixing, it is to avoid need to change the voice signal of input that brought tonequality is poor asks in existing audio mixing mode
Topic.Thus, the tonequality of the voice signal of mobile terminal playing is improved using the scheme of the embodiment of the present invention.
In the embodiment of the present invention, above-mentioned sound mixing method can apply to mobile terminal, for example：Mobile phone, tablet personal computer
(Tablet Personal Computer), laptop computer (Laptop Computer), personal digital assistant (personal
Digital assistant, abbreviation PDA), mobile Internet access device (Mobile Internet Device, MID) or wearable
Equipment (Wearable Device) etc..
As shown in Fig. 2 being the mixer circuit structure chart of the embodiment of the present invention.In fig. 2, AP is application processor, to PCM
Music and the decoding of DSD music, output PCM data signals and DSD data signals.DSD DAC are DSD digital analog converters, to DSD lattice
Formula source of sound carries out digital-to-analogue conversion, exports DSD analoging sound signals, size is V1；PCM DAC are PCM digital analog converters, to PCM
Form source of sound carries out digital-to-analogue conversion, exports PCM analoging sound signals, size is V2；HPA is put for ear, to analog signal V1 and V2
Power amplification output is carried out, multiplication factor weighted value is respectively Rf/R1 and Rf/R2；R1, R2 are adjustable sound volume gain module, are used
To adjust DSD volumes and audio mixing ratio.
By this circuit structure, only when DSD forms are played, PCM passages are output as high-impedance state, and reality output is
VO=-Rf × (V1/R1)；Only when PCM format is played, DSD passages are output as high-impedance state, reality output be VO=-Rf ×
(V2/R2)；In audio mixing, PCM passages and DSD passages are exported simultaneously, and reality output is VO=-Rf × (V1/R1+V2/R2).Its
In, Rf represents the resistance of feedback resistance.
With reference to Fig. 2, as shown in figure 3, the sound mixing method of the embodiment of the present invention, applied to mobile terminal, including：
Step 301, using first passage DSD digital audio signals are received, and the DSD digital audio signals are converted to
DSD analoging sound signals.
Step 302, using second channel PCM digital audio signals are received, and the PCM digital audio signals are converted to
PCM analoging sound signals；
Step 303, acquisition Gain tuning parameter.
Wherein, Rf/R1 and Rf/R2 are referred to as the first Gain tuning parameter and the second Gain tuning parameter.Here, utilizing
The ratio of the resistance of feedback resistance in the operational amplifier and the resistance of first adjustable resistance is adjusted as the first gain
Whole parameter；By the use of the feedback resistance in the operational amplifier resistance and second adjustable resistance resistance ratio as
Second Gain tuning parameter.
Step 304, utilize DSD analoging sound signals described in the Gain tuning parameter adjustment and the PCM simulated sounds
Audio mixing ratio of the signal in the simulation audio mixing output signal.
Specifically, by adjusting the first Gain tuning parameter and the second Gain tuning parameter, adjusting the DSD
The audio mixing ratio of analoging sound signal and the PCM analoging sound signals in the simulation audio mixing output signal.
Step 305, the DSD analoging sound signals and PCM analoging sound signals are passed through into operational amplifier generation simulated
Audio mixing output signal.
So, in the embodiment of the present invention, using DSD analoging sound signals and PCM analoging sound signals, simulation audio mixing is obtained
Output signal.Therefore, obtained using the mode of the embodiment of the present invention by DSD analoging sound signals and PCM analoging sound signals
Audio mixing, it is to avoid need to change the voice signal of input that brought tonequality is poor asks in existing audio mixing mode
Topic.Thus, the tonequality of the voice signal of mobile terminal playing is improved using the scheme of the embodiment of the present invention.
Referring to Fig. 4, Fig. 4 is the structure chart for the device sound mixing that the present invention implements offer, as shown in figure 4, device sound mixing 400 is wrapped
Include：Operational amplifier 401, first processing module 402, Second processing module 403；The first processing module 402 is connected to fortune
Calculate the end of oppisite phase of amplifier 401；The Second processing module 403 is connected to the end of oppisite phase of operational amplifier 401；The computing is put
The positive terminal connection power supply of big device 401.
Wherein, the first processing module 402, for receiving DSD digital audio signals using first passage, and will be described
DSD digital audio signals are converted to DSD analoging sound signals；The Second processing module 403, for being received using second channel
PCM digital audio signals, and the PCM digital audio signals are converted into PCM analoging sound signals；The operational amplifier
401, for according to the DSD analoging sound signals and PCM analoging sound signals generation simulation audio mixing output signal.
As shown in figure 5, described device also includes：
Acquisition module 404, for obtaining Gain tuning parameter；Adjustment module 405, for utilizing the Gain tuning parameter
Adjust the audio mixing ratio of the DSD analoging sound signals and the PCM analoging sound signals in the simulation audio mixing output signal
Example；Wherein, the first passage is connected to the end of oppisite phase of the operational amplifier by the first adjustable resistance；The second channel
The end of oppisite phase of the operational amplifier is connected to by the second adjustable resistance.
Specifically, as shown in fig. 6, the acquisition module 404 includes：First acquisition submodule 4041, for described in
The ratio of the resistance of feedback resistance in operational amplifier and the resistance of first adjustable resistance is joined as the first Gain tuning
Number；Second acquisition submodule 4042, for the resistance using the feedback resistance in the operational amplifier and described second adjustable
The ratio of the resistance of resistance is used as the second Gain tuning parameter.
The adjustment module 405 by adjusting the first Gain tuning parameter and second gain specifically for being adjusted
Whole parameter, adjusts the DSD analoging sound signals and the PCM analoging sound signals in the simulation audio mixing output signal
Audio mixing ratio.
Wherein, the size of the audio mixing output signal is：
VO=-Rf × (V1/R1+V2/R2)；
Wherein, VO represents the audio mixing output signal value, and Rf represents the resistance of the feedback resistance in the operational amplifier；
V1 represents the value of the DSD analoging sound signals, and V2 represents the value of the PCM analoging sound signals, and R1 represents that described first can
The resistance of resistance is adjusted, R2 represents the resistance of first adjustable resistance.
Device sound mixing 400 can realize each process in Fig. 1 to Fig. 3 embodiment of the method, to avoid repeating, here not
Repeat again.
So, in the embodiment of the present invention, using DSD analoging sound signals and PCM analoging sound signals, simulation audio mixing is obtained
Output signal.Therefore, obtained using the mode of the embodiment of the present invention by DSD analoging sound signals and PCM analoging sound signals
Audio mixing, it is to avoid need to change the voice signal of input that brought tonequality is poor asks in existing audio mixing mode
Topic.Thus, the tonequality of the voice signal of mobile terminal playing is improved using the scheme of the embodiment of the present invention.
The embodiment of the present invention additionally provides a kind of mobile terminal, including：Memory, processor and it is stored in the memory
Computer program that is upper and can running on the processor, realizes foregoing during computer program described in the computing device
The step in method described in one embodiment.
Referring to Fig. 7, Fig. 7 is the structure chart for the mobile terminal that the present invention implements offer, as shown in fig. 7, mobile terminal 700 is wrapped
Include：At least one processor 701, memory 702, at least one network interface 704 and user interface 703.In mobile terminal 700
Each component be coupled by bus system 705.It is understood that bus system 705 is used to realize between these components
Connection communication.Bus system 705 is in addition to including data/address bus, in addition to power bus, controlling bus and status signal bus in addition.
But for the sake of clear explanation, various buses are all designated as bus system 705 in the figure 7.Mobile terminal 700 also includes audio mixing
Device 706.The device sound mixing 706 includes：Operational amplifier 7061, first processing module 7062, Second processing module 7063.
Wherein, user interface 703 can include display, keyboard or pointing device (for example, mouse, trace ball
(track ball), touch-sensitive plate or touch-screen etc..
It is appreciated that the memory 702 in the embodiment of the present invention can be volatile memory or nonvolatile memory,
Or may include both volatibility and nonvolatile memory.Wherein, nonvolatile memory can be read-only storage (Read-
Only Memory, ROM), programmable read only memory (Programmable ROM, PROM), the read-only storage of erasable programmable
Device (Erasable P ROM, EPROM), Electrically Erasable Read Only Memory (Electrically EP ROM, EEPROM)
Or flash memory.Volatile memory can be random access memory (Random Access Memory, RAM), and it is used as outside
Cache.By exemplary but be not restricted explanation, the RAM of many forms can use, such as static RAM
(Static RAM, SRAM), dynamic random access memory (Dynamic RAM, DRAM), Synchronous Dynamic Random Access Memory
(Synchronous D RAM, SDRAM), double data speed synchronous dynamic RAM (Double Data Rate
SD RAM, DDRSDRAM), enhanced Synchronous Dynamic Random Access Memory (Enhanced SD RAM, ESDRAM), synchronous connect
Connect dynamic random access memory (Synch link D RAM, SLDRAM) and direct rambus random access memory
(Direct Rambus RAM, DRRAM).The memory 702 of system and method described herein be intended to including but not limited to these
With the memory of any other suitable type.
In some embodiments, memory 702 stores following element, can perform module or data structure, or
Their subset of person, or their superset：Operating system 7021 and application program 7022.
Wherein, operating system 7021, comprising various system programs, such as ccf layer, core library layer, driving layer, are used for
Realize various basic businesses and handle hardware based task.Application program 7022, includes various application programs, such as media
Player (Media Player), browser (Browser) etc., for realizing various applied business.Realize the embodiment of the present invention
The program of method may be embodied in application program 7022.
In embodiments of the present invention, by calling program or the instruction of the storage of memory 702, specifically, can be application
The program stored in program 7022 or instruction, processor 701 are used for：
Control first processing module to receive DSD digital audio signals using first passage, and the DSD digital audios are believed
Number be converted to DSD analoging sound signals；Second processing module is controlled to receive PCM digital audio signals using second channel, and will
The PCM digital audio signals are converted to PCM analoging sound signals；By the DSD analoging sound signals and PCM simulated sound messages
Number pass through operational amplifier generation simulation audio mixing output signal；Wherein, the first passage is connected to the operational amplifier
End of oppisite phase；The second channel is connected to the end of oppisite phase of the operational amplifier；The positive terminal connection electricity of the operational amplifier
Source.
The method that the embodiments of the present invention are disclosed can apply in processor 701, or be realized by processor 701.
Processor 701 is probably a kind of IC chip, the disposal ability with signal.In implementation process, the above method it is each
Step can be completed by the integrated logic circuit of the hardware in processor 701 or the instruction of software form.Above-mentioned processing
Device 701 can be general processor, digital signal processor (Digital Signal Processor, DSP), special integrated electricity
Road (Application Specific Integrated Circuit, ASIC), ready-made programmable gate array (Field
Programmable Gate Array, FPGA) or other PLDs, discrete gate or transistor logic,
Discrete hardware components.It can realize or perform disclosed each method, step and the logic diagram in the embodiment of the present invention.It is general
Processor can be microprocessor or the processor can also be any conventional processor etc..With reference to institute of the embodiment of the present invention
The step of disclosed method, can be embodied directly in hardware decoding processor and perform completion, or with the hardware in decoding processor
And software module combination performs completion.Software module can be located at random access memory, and flash memory, read-only storage may be programmed read-only
In the ripe storage medium in this area such as memory or electrically erasable programmable memory, register.The storage medium is located at
Memory 702, processor 701 reads the information in memory 702, the step of completing the above method with reference to its hardware.
It is understood that embodiments described herein can with hardware, software, firmware, middleware, microcode or its
Combine to realize.Realized for hardware, processing unit can be realized in one or more application specific integrated circuit (Application
Specific Integrated Circuits, ASIC), digital signal processor (Digital Signal Processing,
DSP), digital signal processing appts (DSP Device, DSPD), programmable logic device (Programmable Logic
Device, PLD), field programmable gate array (Field-Programmable Gate Array, FPGA), general processor,
In controller, microcontroller, microprocessor, other electronic units for performing herein described function or its combination.
Realize, can be realized by performing the module (such as process, function) of function described herein herein for software
Described technology.Software code is storable in memory and by computing device.Memory can within a processor or
Realized outside processor.
Optionally, processor 701 is additionally operable to：Obtain Gain tuning parameter；Using described in the Gain tuning parameter adjustment
The audio mixing ratio of DSD analoging sound signals and the PCM analoging sound signals in the simulation audio mixing output signal；
Optionally, processor 701 is additionally operable to：Utilize the resistance of the feedback resistance in the operational amplifier and described first
The ratio of the resistance of adjustable resistance is used as the first Gain tuning parameter；Utilize the resistance of the feedback resistance in the operational amplifier
The second Gain tuning parameter is used as with the ratio of the resistance of second adjustable resistance.
Optionally, processor 701 is additionally operable to：By adjusting the first Gain tuning parameter and second Gain tuning
Parameter, adjusts the DSD analoging sound signals and the PCM analoging sound signals mixed in the simulation audio mixing output signal
Signal to noise ratio example.
The size of the audio mixing output signal is：
VO=-Rf × (V1/R1+V2/R2)；
Wherein, VO represents the audio mixing output signal, and Rf represents the resistance of the feedback resistance in the operational amplifier；V1
The value of the DSD analoging sound signals is represented, V2 represents the value of the PCM analoging sound signals, and R1 represents that described first is adjustable
The resistance of resistance, R2 represents the resistance of first adjustable resistance.
Mobile terminal 700 can realize each process that mobile terminal is realized in previous embodiment, to avoid repeating, here
Repeat no more.
So, in the embodiment of the present invention, using DSD analoging sound signals and PCM analoging sound signals, simulation audio mixing is obtained
Output signal.Therefore, obtained using the mode of the embodiment of the present invention by DSD analoging sound signals and PCM analoging sound signals
Audio mixing, it is to avoid need to change the voice signal of input that brought tonequality is poor asks in existing audio mixing mode
Topic.Thus, the tonequality of the voice signal of mobile terminal playing is improved using the scheme of the embodiment of the present invention.
Referring to Fig. 8, Fig. 8 is the structure chart for the mobile terminal that the present invention implements offer, as shown in figure 8, mobile terminal 800 is wrapped
Include radio frequency (Radio Frequency, RF) circuit 810, memory 820, input block 830, display unit 840, processor
850th, voicefrequency circuit 860, communication module 870, power supply 880 and device sound mixing 890.Device sound mixing 890 includes：Operational amplifier
891, first processing module 892, Second processing module 893.
Wherein, input block 830 can be used for the numeral or character information for receiving user's input, and produce and mobile terminal
The signal input that 800 user is set and function control is relevant.Specifically, in the embodiment of the present invention, the input block 830 can
With including contact panel 831.Contact panel 831, also referred to as touch-screen, collect touch operation of the user on or near it
(such as user uses the operations of any suitable object or annex on contact panel 831 such as finger, stylus), and according to advance
The formula of setting drives corresponding attachment means.Optionally, contact panel 831 may include touch detecting apparatus and touch controller
Two parts.Wherein, touch detecting apparatus detects the touch orientation of user, and detects the signal that touch operation is brought, by signal
Send touch controller to；Touch controller receives touch information from touch detecting apparatus, and is converted into contact coordinate,
Give the processor 850 again, and the order sent of reception processing device 850 and can be performed.Furthermore, it is possible to using resistance-type,
The polytypes such as condenser type, infrared ray and surface acoustic wave realize contact panel 831.Except contact panel 831, input block
830 can also include other input equipments 832, and other input equipments 832 can include but is not limited to physical keyboard, function key
One or more in (such as volume control button, switch key etc.), trace ball, mouse, action bars etc..
Wherein, display unit 840 can be used for information and the movement for showing the information inputted by user or being supplied to user
The various menu interfaces of terminal 800.Display unit 840 may include display panel 841, optionally, can use LCD or organic hairs
The forms such as optical diode (Organic Light-Emitting Diode, OLED) configure display panel 841.
It should be noted that contact panel 831 can cover display panel 841, touch display screen is formed, when touch display screen inspection
Measure after the touch operation on or near it, processor 850 is sent to determine the type of touch event, with preprocessor
850 provide corresponding visual output according to the type of touch event in touch display screen.
Touch display screen includes Application Program Interface viewing area and conventional control viewing area.The Application Program Interface viewing area
And arrangement mode of the conventional control viewing area is not limited, can be arranged above and below, left-right situs etc. can distinguish two and show
Show the arrangement mode in area.The Application Program Interface viewing area is displayed for the interface of application program.Each interface can be with
The interface element such as the icon comprising at least one application program and/or widget desktop controls.The Application Program Interface viewing area
It can also be the empty interface not comprising any content.The conventional control viewing area is used to show the higher control of utilization rate, for example,
Application icons such as settings button, interface numbering, scroll bar, phone directory icon etc..The touch-screen of the embodiment of the present invention is soft
Property screen, organic nesa coating of CNT is posted in two faces of flexible screen.
Wherein processor 850 is the control centre of mobile terminal 800, utilizes various interfaces and connection whole mobile phone
Various pieces, software program and/or module in first memory 821 are stored in by operation or execution, and call storage
Data in second memory 822, perform the various functions and processing data of mobile terminal 800, so as to mobile terminal 800
Carry out integral monitoring.Optionally, processor 850 may include one or more processing units.
In embodiments of the present invention, by call store the first memory 821 in software program and/or module and/
Or the data in the second memory 822, processor 850 is used for：
Control first processing module to receive DSD digital audio signals using first passage, and the DSD digital audios are believed
Number be converted to DSD analoging sound signals；Second processing module is controlled to receive PCM digital audio signals using second channel, and will
The PCM digital audio signals are converted to PCM analoging sound signals；By the DSD analoging sound signals and PCM simulated sound messages
Number pass through operational amplifier generation simulation audio mixing output signal；Wherein, the first passage is connected to the operational amplifier
End of oppisite phase；The second channel is connected to the end of oppisite phase of the operational amplifier；The positive terminal connection electricity of the operational amplifier
Source.
Optionally, processor 850 is additionally operable to：Obtain Gain tuning parameter；Using described in the Gain tuning parameter adjustment
The audio mixing ratio of DSD analoging sound signals and the PCM analoging sound signals in the simulation audio mixing output signal；
The Gain tuning parameter includes the first Gain tuning parameter and the second Gain tuning parameter；Optionally, processor
850 are additionally operable to：Using the feedback resistance in the operational amplifier resistance and first adjustable resistance resistance ratio
It is used as the first Gain tuning parameter；Utilize the resistance and second adjustable resistance of the feedback resistance in the operational amplifier
The ratio of resistance is used as the second Gain tuning parameter.
Optionally, processor 850 is additionally operable to：By adjusting the first Gain tuning parameter and second Gain tuning
Parameter, adjusts the DSD analoging sound signals and the PCM analoging sound signals mixed in the simulation audio mixing output signal
Signal to noise ratio example.
The size of the audio mixing output signal is：
VO=-Rf × (V1/R1+V2/R2)；
Wherein, VO represents the audio mixing output signal, and Rf represents the resistance of the feedback resistance in the operational amplifier；V1
The value of the DSD analoging sound signals is represented, V2 represents the value of the PCM analoging sound signals, and R1 represents that described first is adjustable
The resistance of resistance, R2 represents the resistance of first adjustable resistance.
Mobile terminal 800 can realize each process that mobile terminal is realized in previous embodiment, to avoid repeating, here
Repeat no more.
So, in the embodiment of the present invention, using DSD analoging sound signals and PCM analoging sound signals, simulation audio mixing is obtained
Output signal.Therefore, obtained using the mode of the embodiment of the present invention by DSD analoging sound signals and PCM analoging sound signals
Audio mixing, it is to avoid need to change the voice signal of input that brought tonequality is poor asks in existing audio mixing mode
Topic.Thus, the tonequality of the voice signal of mobile terminal playing is improved using the scheme of the embodiment of the present invention.
Those of ordinary skill in the art are it is to be appreciated that the list of each example described with reference to the embodiments described herein
Member and algorithm steps, can be realized with the combination of electronic hardware or computer software and electronic hardware.These functions are actually
Performed with hardware or software mode, depending on the application-specific and design constraint of technical scheme.Professional and technical personnel
Described function can be realized using distinct methods to each specific application, but this realization is it is not considered that exceed
The scope of the present invention.
It is apparent to those skilled in the art that, for convenience and simplicity of description, the system of foregoing description,
The specific work process of device and unit, may be referred to the corresponding process in preceding method embodiment, will not be repeated here.
In embodiment provided herein, it should be understood that disclosed apparatus and method, others can be passed through
Mode is realized.For example, device embodiment described above is only schematical, for example, the division of the unit, is only
A kind of division of logic function, can there is other dividing mode when actually realizing, such as multiple units or component can combine or
Person is desirably integrated into another system, or some features can be ignored, or does not perform.Another, shown or discussed is mutual
Between coupling or direct-coupling or communication connection can be the INDIRECT COUPLING or communication link of device or unit by some interfaces
Connect, can be electrical, machinery or other forms.
The unit illustrated as separating component can be or may not be it is physically separate, it is aobvious as unit
The part shown can be or may not be physical location, you can with positioned at a place, or can also be distributed to multiple
On NE.Some or all of unit therein can be selected to realize scheme of the embodiment of the present invention according to the actual needs
Purpose.
In addition, each functional unit in each embodiment of the invention can be integrated in a processing unit, can also
That unit is individually physically present, can also two or more units it is integrated in a unit.
If the function is realized using in the form of SFU software functional unit and is used as independent production marketing or in use, can be with
It is stored in a computer read/write memory medium.Understood based on such, technical scheme is substantially in other words
The part contributed to prior art or the part of the technical scheme can be embodied in the form of software product, the meter
Calculation machine software product is stored in a storage medium, including some instructions are to cause a computer equipment (can be individual
People's computer, server, or network equipment etc.) perform all or part of step of each of the invention embodiment methods described.
And foregoing storage medium includes：USB flash disk, mobile hard disk, ROM, RAM, magnetic disc or CD etc. are various can be with store program codes
Medium.
The foregoing is only a specific embodiment of the invention, but protection scope of the present invention is not limited thereto, any
Those familiar with the art the invention discloses technical scope in, change or replacement can be readily occurred in, should all be contained
Cover within protection scope of the present invention.Therefore, protection scope of the present invention should be defined by scope of the claims.
Claims (11)
1. a kind of sound mixing method, it is characterised in that applied to mobile terminal, including：
DSD digital audio signals are received using first passage, and the DSD digital audio signals are converted into DSD simulated sounds
Signal；
PCM digital audio signals are received using second channel, and the PCM digital audio signals are converted into PCM simulated sounds
Signal；
The DSD analoging sound signals and PCM analoging sound signals are passed through into operational amplifier generation simulation audio mixing output signal；
Wherein, the first passage is connected to the end of oppisite phase of the operational amplifier；The second channel is connected to the computing
The end of oppisite phase of amplifier；The positive terminal connection power supply of the operational amplifier.
2. according to the method described in claim 1, it is characterised in that methods described also includes：
Obtain Gain tuning parameter；
Using DSD analoging sound signals described in the Gain tuning parameter adjustment and the PCM analoging sound signals in the mould
Intend the audio mixing ratio in audio mixing output signal；
Wherein, the first passage is connected to the end of oppisite phase of the operational amplifier by the first adjustable resistance；Described second leads to
Road is connected to the end of oppisite phase of the operational amplifier by the second adjustable resistance.
3. method according to claim 2, it is characterised in that the Gain tuning parameter includes the first Gain tuning parameter
With the second Gain tuning parameter；The acquisition Gain tuning parameter, including：
The ratio of resistance of resistance and first adjustable resistance by the use of the feedback resistance in the operational amplifier is used as
One Gain tuning parameter；
The ratio of resistance of resistance and second adjustable resistance by the use of the feedback resistance in the operational amplifier is used as
Two Gain tuning parameters.
4. method according to claim 3, it is characterised in that described to utilize DSD described in the Gain tuning parameter adjustment
The audio mixing ratio of analoging sound signal and the PCM analoging sound signals in the simulation audio mixing output signal, including：
By adjusting the first Gain tuning parameter and the second Gain tuning parameter, the DSD simulated sounds message is adjusted
Number and the PCM analoging sound signals it is described simulation audio mixing output signal in audio mixing ratio.
5. according to the method described in claim 1, it is characterised in that the size of the audio mixing output signal is：
VO=-Rf × (V1/R1+V2/R2)；
Wherein, VO represents the audio mixing output signal value, and Rf represents the resistance of the feedback resistance in the operational amplifier；V1 tables
Show the value of the DSD analoging sound signals, V2 represents the value of the PCM analoging sound signals, and R1 represents first adjustable electric
The resistance of resistance, R2 represents the resistance of first adjustable resistance.
6. a kind of device sound mixing, it is characterised in that including：Operational amplifier, first processing module, Second processing module；It is described
First processing module is connected to the end of oppisite phase of operational amplifier；The Second processing module is connected to the anti-phase of operational amplifier
End；The positive terminal connection power supply of the operational amplifier；
The first processing module, for receiving DSD digital audio signals using first passage, and by the DSD digital audios
Signal is converted to DSD analoging sound signals；
The Second processing module, for receiving PCM digital audio signals using second channel, and by the PCM digital audios
Signal is converted to PCM analoging sound signals；
The operational amplifier, for defeated according to the DSD analoging sound signals and PCM analoging sound signals generation simulation audio mixing
Go out signal.
7. device according to claim 6, it is characterised in that described device also includes：
Acquisition module, for obtaining Gain tuning parameter；
Adjustment module, for utilizing DSD analoging sound signals and the PCM simulated sounds described in the Gain tuning parameter adjustment
Audio mixing ratio of the signal in the simulation audio mixing output signal；
Wherein, the first passage is connected to the end of oppisite phase of the operational amplifier by the first adjustable resistance；Described second leads to
Road is connected to the end of oppisite phase of the operational amplifier by the second adjustable resistance.
8. device according to claim 7, it is characterised in that the Gain tuning parameter includes the first Gain tuning parameter
With the second Gain tuning parameter；
The acquisition module includes：
First acquisition submodule, for the resistance and first adjustable resistance using the feedback resistance in the operational amplifier
The ratio of resistance be used as the first Gain tuning parameter；
Second acquisition submodule, for the resistance and second adjustable resistance using the feedback resistance in the operational amplifier
The ratio of resistance be used as the second Gain tuning parameter.
9. device according to claim 8, it is characterised in that
The adjustment module specifically for, by adjusting the first Gain tuning parameter and the second Gain tuning parameter,
Adjust the audio mixing ratio of the DSD analoging sound signals and the PCM analoging sound signals in the simulation audio mixing output signal
Example.
10. device according to claim 6, it is characterised in that the size of the audio mixing output signal is：
VO=-Rf × (V1/R1+V2/R2)；
Wherein, VO represents the audio mixing output signal value, and Rf represents the resistance of the feedback resistance in the operational amplifier；V1 tables
Show the value of the DSD analoging sound signals, V2 represents the value of the PCM analoging sound signals, and R1 represents first adjustable electric
The resistance of resistance, R2 represents the resistance of first adjustable resistance.
11. a kind of mobile terminal, it is characterised in that including：Memory, processor and it is stored on the memory and can be in institute
The computer program run on processor is stated, is realized described in the computing device during computer program as in claim 1 to 5
The step in method described in any one.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110431915A (en) * | 2018-01-11 | 2019-11-08 | 华为技术有限公司 | A kind of terminal device, DSD audio playing circuit and method |
| CN111326174A (en) * | 2019-12-31 | 2020-06-23 | 四川长虹电器股份有限公司 | Method for automatically synthesizing test corpus in far-field voice interference scene |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101079265A (en) * | 2007-07-11 | 2007-11-28 | 北京中星微电子有限公司 | Voice signal processing system |
| CN101690270A (en) * | 2006-05-04 | 2010-03-31 | Lg电子株式会社 | Enhancing audio with remixing capability |
| US20140205115A1 (en) * | 2011-10-13 | 2014-07-24 | Huawei Device Co., Ltd. | Audio Mixing Method, Apparatus and System |
| US20150066518A1 (en) * | 2013-09-05 | 2015-03-05 | Electronics And Telecommunications Research Institute | Audio encoding apparatus and method, audio decoding apparatus and method, and audio reproducing apparatus |
| CN106412767A (en) * | 2016-11-29 | 2017-02-15 | 维沃移动通信有限公司 | Sound mixing method and sound mixing circuit |
-
2017
- 2017-05-17 CN CN201710347534.5A patent/CN107204191A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101690270A (en) * | 2006-05-04 | 2010-03-31 | Lg电子株式会社 | Enhancing audio with remixing capability |
| CN101079265A (en) * | 2007-07-11 | 2007-11-28 | 北京中星微电子有限公司 | Voice signal processing system |
| US20140205115A1 (en) * | 2011-10-13 | 2014-07-24 | Huawei Device Co., Ltd. | Audio Mixing Method, Apparatus and System |
| US20150066518A1 (en) * | 2013-09-05 | 2015-03-05 | Electronics And Telecommunications Research Institute | Audio encoding apparatus and method, audio decoding apparatus and method, and audio reproducing apparatus |
| CN106412767A (en) * | 2016-11-29 | 2017-02-15 | 维沃移动通信有限公司 | Sound mixing method and sound mixing circuit |
Non-Patent Citations (1)
| Title |
|---|
| 李冬梅等: "《电子电路原理》", 30 September 2014 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110431915A (en) * | 2018-01-11 | 2019-11-08 | 华为技术有限公司 | A kind of terminal device, DSD audio playing circuit and method |
| CN110431915B (en) * | 2018-01-11 | 2021-10-29 | 荣耀终端有限公司 | Terminal equipment, DSD audio playing circuit and method |
| US11606459B2 (en) | 2018-01-11 | 2023-03-14 | Honor Device Co., Ltd. | Terminal device, and DSD audio playback circuit and method |
| CN111326174A (en) * | 2019-12-31 | 2020-06-23 | 四川长虹电器股份有限公司 | Method for automatically synthesizing test corpus in far-field voice interference scene |
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Application publication date: 20170926 |