CN106328164A - Ring-shaped visualized system and method for music spectra - Google Patents
Ring-shaped visualized system and method for music spectra Download PDFInfo
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- CN106328164A CN106328164A CN201610750761.8A CN201610750761A CN106328164A CN 106328164 A CN106328164 A CN 106328164A CN 201610750761 A CN201610750761 A CN 201610750761A CN 106328164 A CN106328164 A CN 106328164A
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
- G10L21/00—Processing of the speech or voice signal to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
- G10L21/06—Transformation of speech into a non-audible representation, e.g. speech visualisation or speech processing for tactile aids
- G10L21/10—Transforming into visible information
- G10L21/14—Transforming into visible information by displaying frequency domain information
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR 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
- G06F3/167—Audio in a user interface, e.g. using voice commands for navigating, audio feedback
Abstract
The invention provides a ring-shaped visualized system and method for music spectra. The system comprises a music signal acquisition module, a Fourier transformation module, a spectrum band segmentation module, a binding module, a video rendering module and a synthetic play module, wherein the Fourier transformation module is used for performing frequency domain transformation on music signals, determining a frequency area where the energy is concentrated, and dividing the music signals into N frequency bands; the spectrum segmentation module is used for segmenting signals into frequency band signals of N frequency bands connected but not superposed with each other; the binding module is used for binding the frequency band signals with N concentric rings with different radii one by one, with frequencies increased sequentially in the radial direction. Each ring has certain width, scales are divided clockwise from the position above the ring, representing the frequency increase direction in the frequency band, and the width of each position of the ring is bound with the amplitude of the corresponding frequency component there. By adopting the system, music spectra are visualized in the ring form of multilayer colors and width changes with music changes.
Description
Technical field
The present invention relates to information processing and visualization field, particularly relate to the circular visual of a kind of music frequency spectrum
System and method.
Background technology
The most any one section of music all can be visualized, so that music can not only be listened, and can " see ".One section of music
Often there is various feature, have time domain, have frequency domain.Temporal signatures can be divided into volume, rhythm etc., and frequency domain character then can be divided into
Frequency spectrum, tone color etc..Music Visualization is exactly to show, one or more in the above feature along with music with video
Broadcasting, feature change, video pictures is also correspondingly changing, thus realizes the purpose of " seeing " music.
Along with computer technology and sound, the development of video production technology, current Music Visualization works have been found everywhere,
Existing by visual for music temporal signatures, also have visual for music frequency domain character.Wherein by music frequency domain character it
The one visual works of frequency spectrum are often achieved in that and are first filtered through N number of graded filter by one section of music signal
Ripple obtains the signal of N number of different frequency range, then represents the amplitude size of these frequency band signals, two-dimensional histogram with bar graph form
Abscissa represent frequency, vertical coordinate (height of cylinder) represents the frequency band signals amplitude corresponding with frequency.It is to say, at present
The visual form of music frequency spectrum mostly is block diagram, and such as " the media player " of Windows operating system, cost is high.
Summary of the invention
The technical problem to be solved is to provide visualization system and the method for the circular diagram of a kind of music frequency spectrum,
Music frequency spectrum is visualized by it by a kind of diverse form, is to be entered with the form of multilayer concentric annulus by the frequency spectrum of music
Row visualization, to a kind of different visual effect of people, reduces cost.
The present invention solves above-mentioned technical problem by following technical proposals: the circular visual of a kind of music frequency spectrum
System, it is characterised in that comprising:
Music signal acquisition module, is mainly made up of sound transducer, analog-digital converter two parts, and function is by sound respectively
Sound physical quantity is converted to analog electrical energy, analog electrical energy is converted to numeral electricity, in order to imports computer and processes further；
Fourier transformation module, main by Matlab platform programming realization, including fast Fourier transform program, frequency spectrum energy
Amount threshold value setting program, frequency range and bin width calculation procedure, N number of frequency range upper and lower limit calculation procedure etc., function is respectively
The digital music signal obtaining music signal acquisition module carries out fast Fourier transform, draws spectrogram；Determine whole frequency
Frequency range f that in spectrum, energy is relatively concentratedOn~fUnder；Calculate W=(fOn-fUnder)/N, W are the width of each frequency range；Calculate each frequency range
Upper and lower limit, such as: the upper and lower limit of the first frequency range is fOn~fOn+ W, the upper and lower limit of the second frequency range is fOn+W~fOn+2*W；These
Data are using the upper and lower cut-off frequency as each frequency band filter of rear class；
Frequency range segmentation module, is made up of the digital band-pass filter of a width of W of N number of band, and N is natural number, and function is by whole music
Signal is divided into frequency band and overlaps but nonoverlapping N number of frequency band signals, and the upper and lower cut-off frequency of each band filter is just
It it is the upper and lower limit frequency of the corresponding frequency band that prime obtains；Music signal is transformed into frequency domain by time domain by Fourier transformation module,
Determining the frequency field that energy is relatively concentrated on its spectrogram, the frequency that this region upper and lower limit is corresponding is called fOnAnd fUnder；Again
By (fOn-fUnderThis region is divided into N number of frequency range by)/N=W, and the width of each frequency range is W, and then can release each frequency range
Upper and lower limit, as the design parameter of each band filter of rear class；The cut-off frequency of the band filter of a width of W of N number of band is respectively
The upper and lower limit frequency of the aforementioned N number of frequency range obtained；Music signal is divided into frequency band by after such N number of parallelism wave filter
Overlap but nonoverlapping N number of frequency band signals；Binding module is by the donut one of N number of frequency band signals Yu N number of different radii
One corresponding binding, internal ring correspondence low-frequency range, outer shroud correspondence high band, and every layer of annulus also have one fixed width, each annulus from
Directly over start, prolong and clockwise 360 scales are set, by all frequency components in corresponding frequency band from low to high
It is evenly distributed on 360 scales of this annulus, by the width binding of ring at frequency component amplitudes and place scale, i.e.
Ring thickness at each scale represents the amplitude of frequency component corresponding at this, when playing, and the frequency component in each frequency range
Amplitude all can change in time, and this change will be reacted directly in the thickness change at the corresponding scale of corresponding annulus；
The color of the most each ring sets, i.e. warm colour correspondence high-pitched tone, cool colour correspondence low pitch according to " color and the corresponding relation of tone ",
Outer shroud frequency is the highest, represents by redness, and innermost ring frequency is minimum, represents by blueness, thus indirectly by the emotion of tone Yu people
Connect；
Binding module, binding module has N group, by three part compositions: frequency range is bound with annulus with annulus binding part, color
Partly, scale binds part with frequency component amplitudes；This three part is " to be expressed by the difference in later stage special effect making software
Formula " realize；Specifically, first making N number of donut in later stage special effect making software, every ring has one fixed width, respectively
The color of ring sets according to the corresponding relation of color with tone, i.e. warm colour correspondence high-pitched tone, cool colour correspondence low pitch, outer shroud frequency
Rate is the highest, represents by redness, and innermost ring frequency is minimum, represents by blueness, binds the most one by one；Followed by later stage special effect making
Aforementioned frequency band signals is bound one by one by the expression formula function in software with corresponding donut, low-frequency range correspondence internal ring, high frequency
The corresponding outer shroud of section；The most also will by each annulus from the beginning of surface, prolong and clockwise 360 scales be set, by certain
All frequency components in frequency range are evenly distributed on 360 scales of annulus corresponding to this frequency range from low to high, and profit
Binding by expression formula, the ring width at each scale represents the amplitude of frequency component corresponding at this, when playing, each in frequency range
The amplitude of frequency component all can change in time, and this change is by the change width being reacted directly into corresponding annulus；
Video Rendering module, mainly completes precomputation and the storage function of the required every frame video data of visualization, and mould is play in synthesis
Video signal after block then will render carries out time alignment with former music signal and plays, and so can avoid due to video signal
Every frame data amount is huge, can cause video playback slack problem when processing in real time；Soft particular by later stage special effect making
Part renders what function completed, carries out data calculating according to every bound content of above-mentioned binding module, institute's total will be calculated
According to being first stored in internal memory, in case calling when playing；
Synthesis playing module, mainly by playing two parts and form depending on the synthesis of, audio frequency and depending on, audio frequency, the function of synthesis is by music
Signal with render after video signal carry out time alignment, be to utilize video and audio complex functionality in later stage special effect making software real
Existing；The function play is then that video, voice data are delivered to display device and loudspeaker apparatus respectively.
Preferably, described music signal acquisition module, Fourier transformation module, frequency range are split module, binding module, are rendered
Module, synthesis playing module are sequentially connected with.
For solving above-mentioned technical problem, the present invention also provides for a kind of method of music frequency spectrum circular visual, and it mainly wraps
Include following steps:
Step one, obtains one section of music, transfers analog music signals to digital signal；
Step 2, imports computer by digital music signal, utilizes programming software Matlab that this signal is carried out fast Fourier change
Change, and draw spectrogram, determine, according to spectrogram, frequency range f that energy is relatively concentratedOn～fUnder, then by (fOn-fUnder)/N=W will
This region is bisected into N number of frequency range, and the width of each frequency range is W, and then draws the upper and lower limit of each frequency range, each as rear class
The upper and lower cut-off frequency of band filter, wherein N takes natural number；
Step 3, the upper and lower limit frequency of N number of frequency range that the band filter of a width of W of N number of band obtains according to prime as itself
Upper and lower cut-off frequency is designed, and is divided into frequency band afterwards mutual after music signal is by N number of parallel band filter
It is connected but nonoverlapping N number of frequency band signals；
Step 4, utilizes later stage special effect making software to be tied up by the donut one_to_one corresponding of N number of frequency band signals with N number of different radii
Fixed, low-frequency range correspondence internal ring, high band correspondence outer shroud, the more each frequency component amplitudes in frequency range is carved with 360 deg on ring
Width binding at degree, finally the corresponding relation further according to color Yu frequency determines the color of each annulus；
Step 5, after having bound, carries out Video Rendering, i.e. according to above-mentioned binding relationship carry out video data precalculate with
Storage；
Step 6, the video signal after rendering carries out time alignment with former digital music signal and plays.
The most progressive effect of the present invention is: the present invention is visual by music frequency spectrum by a kind of diverse form
Changing, be to be visualized with the form of multi layer colour annulus by music frequency spectrum, wherein the width of every layer of annulus, color are the most different,
Representing the frequecy characteristic of different frequency range signal in music signal, to a kind of different visual effect of people, and system cost is cheap.
Accompanying drawing explanation
Fig. 1 is the circular visual system structure schematic diagram of music frequency spectrum of the present invention.
Detailed description of the invention
Provide present pre-ferred embodiments below in conjunction with the accompanying drawings, to describe technical scheme in detail.
As it is shown in figure 1, the circular visual system of music frequency spectrum of the present invention includes:
Music signal acquisition module, is mainly made up of sound transducer, analog-digital converter two parts, and function is by sound respectively
Sound physical quantity is converted to analog electrical energy, analog electrical energy is converted to numeral electricity, in order to imports computer and processes further.
Fourier transformation module, main by Matlab platform programming realization, including fast Fourier transform (FFT) journey
Sequence, spectrum energy threshold value setting program, frequency range and bin width calculation procedure, N number of frequency range upper and lower limit calculation procedure etc.,
Function is that the digital music signal obtaining music signal acquisition module carries out fast Fourier transform respectively, draws spectrogram；
Determine frequency range f that in whole frequency spectrum, energy is relatively concentratedOn~fUnder；Calculate W=(fOn-fUnder)/N, W are the width of each frequency range；Meter
Calculate the upper and lower limit of each frequency range, such as: the upper and lower limit of the first frequency range is fOn~fOn+ W, the upper and lower limit of the second frequency range is fOn+W~fOn
+ 2*W ... by that analogy；These data are using the upper and lower cut-off frequency as each frequency band filter of rear class.
Frequency range segmentation module, is made up of the digital band-pass filter of a width of W of N number of band, and N is natural number, and function is by whole
Music signal is divided into frequency band and overlaps but nonoverlapping N number of frequency band signals, the upper and lower cutoff frequency of each band filter
Rate is exactly the upper and lower limit frequency of the corresponding frequency band that prime obtains.Music signal is transformed into frequency by time domain by Fourier transformation module
Territory, determines the frequency field that energy is relatively concentrated on its spectrogram, and the frequency that this region upper and lower limit is corresponding is called fOnWith
fUnder.Again by (fOn-fUnderThis region is divided into N number of frequency range by)/N=W, and the width of each frequency range is W, and then can release each frequency
The upper and lower limit of section, as the design parameter of each band filter of rear class.The cut-off frequency of the band filter of a width of W of N number of band divides
It it not the upper and lower limit frequency of the aforementioned N number of frequency range obtained.Music signal is divided into by after such N number of parallelism wave filter
Frequency band overlaps but nonoverlapping N number of frequency band signals.Binding module is by the concentric circular of N number of frequency band signals Yu N number of different radii
Ring one_to_one corresponding is bound, internal ring correspondence low-frequency range, outer shroud correspondence high band, and every layer of annulus also has one fixed width, Mei Geyuan
Ring from the beginning of surface, prolong and clockwise 360 scales be set, by all frequency components in corresponding frequency band by low
It is evenly distributed on 360 scales of this annulus to height, the width of ring at frequency component amplitudes and place scale is tied up
Fixed, the ring thickness at the most each scale represents the amplitude of frequency component corresponding at this, when playing, and the frequency in each frequency range
Component amplitude all can change in time, and this change will be reacted directly into the thickness change at the corresponding scale of corresponding annulus
On.The color of the most each ring sets, i.e. warm colour correspondence high-pitched tone (high frequency), cool colour pair according to " color and the corresponding relation of tone "
Answering low pitch (low frequency), outer shroud frequency the highest, represent by redness, innermost ring frequency is minimum, represents by blueness, thus indirectly will
Tone connects with the emotion of people.
Binding module, binding module has N group, by three part compositions: frequency range and annulus binding part, color and annulus
Binding part, scale bind part with frequency component amplitudes.This three part is by later stage special effect making software After
Effects(AE) difference " expression formula " in realizes.Specifically, first making N number of donut in AE, every ring has one
Fixed width degree, the color of each ring sets according to the corresponding relation of color with tone, i.e. warm colour correspondence high-pitched tone (high frequency), and cool colour is corresponding
Low pitch (low frequency), outer shroud frequency are the highest, represent by redness, and innermost ring frequency is minimum, represents by blueness, ties up the most one by one
Fixed.Being bound one by one with corresponding donut by aforementioned frequency band signals followed by the expression formula function in AE, low-frequency range is corresponding
Internal ring, high band correspondence outer shroud；The most also will by each annulus from the beginning of surface, prolong and clockwise arrange 360
All frequency components in certain frequency range are evenly distributed on 360 quarters of annulus corresponding to this frequency range by scale from low to high
On degree, and utilizing expression formula to bind, the ring width at each scale represents the amplitude of frequency component corresponding at this, works as broadcasting
Time, in frequency range, the amplitude of each frequency component all can change in time, and this change will be reacted directly into the width of corresponding annulus
In degree change.
Video Rendering module, mainly completes precomputation and the storage function of the required every frame video data of visualization, and synthesis is broadcast
Video signal after amplification module then will render carries out time alignment with former music signal and plays, and so can avoid due to video
Signal every frame data amount is huge, can cause video playback slack problem when processing in real time.Particular by rendering in AE
Function completes, and carries out data calculating according to every bound content of above-mentioned binding module, is first stored in by computed information
Internal memory, in case calling when playing.
Synthesis playing module, mainly by playing two parts and form depending on the synthesis of, audio frequency and depending on, audio frequency, the function of synthesis be by
Music signal with render after video signal carry out time alignment, be to utilize the video and audio complex functionality in AE to realize；Play
Function be then that video, voice data are delivered to display device and loudspeaker apparatus respectively.
Music signal acquisition module, Fourier transformation module, frequency range segmentation module, binding module, rendering module, synthesis are broadcast
Amplification module is sequentially connected with, the most easy to use.
Music frequency spectrum circular visual method of the present invention mainly comprises the steps:
Step one, obtains one section of music, transfers analog music signals to digital signal；
Step 2, imports computer by digital music signal, utilizes programming software Matlab that this signal is carried out fast Fourier change
Change, and draw spectrogram, determine, according to spectrogram, frequency range f that energy is relatively concentratedOn～fUnder, then by (fOn-fUnder)/N=W will
This region is bisected into N number of frequency range, and the width of each frequency range is W, and then draws the upper and lower limit of each frequency range, each as rear class
The upper and lower cut-off frequency of band filter, wherein N takes natural number；
Step 3, the upper and lower limit frequency of N number of frequency range that the band filter of a width of W of N number of band obtains according to prime as itself
Upper and lower cut-off frequency is designed, and is divided into frequency band afterwards mutual after music signal is by N number of parallel band filter
It is connected but nonoverlapping N number of frequency band signals；
Step 4, utilizes later stage special effect making software After Effects(AE) by N number of frequency band signals and N number of different radii
Donut one_to_one corresponding is bound, low-frequency range correspondence internal ring, high band correspondence outer shroud, then by each frequency component amplitudes in frequency range
Binding with the width at 360 deg scale on ring, finally the corresponding relation further according to color Yu frequency determines each annulus
Color；
Step 5, after having bound, carries out Video Rendering, i.e. according to above-mentioned binding relationship carry out video data precalculate with
Storage；
Step 6, the video signal after rendering carries out time alignment with former digital music signal and plays.
Particular embodiments described above, is carried out technical problem solved by the invention, technical scheme and beneficial effect
Further describe, be it should be understood that the specific embodiment that the foregoing is only the present invention, be not limited to
The present invention, all within the spirit and principles in the present invention, any modification, equivalent substitution and improvement etc. done, should be included in this
Within the protection domain of invention.
Claims (3)
1. the circular visual system of a music frequency spectrum, it is characterised in that comprising:
Music signal acquisition module, is mainly made up of sound transducer, analog-digital converter two parts, and function is by sound respectively
Sound physical quantity is converted to analog electrical energy, analog electrical energy is converted to numeral electricity, in order to imports computer and processes further；
Fourier transformation module, main by Matlab platform programming realization, including fast Fourier transform program, frequency spectrum energy
Amount threshold value setting program, frequency range and bin width calculation procedure, N number of frequency range upper and lower limit calculation procedure, function is right respectively
The digital music signal that music signal acquisition module obtains carries out fast Fourier transform, draws spectrogram；Determine whole frequency spectrum
Frequency range f that middle energy is relatively concentratedOn~fUnder；Calculate W=(fOn-fUnder)/N, W are the width of each frequency range；Calculate each frequency range
Upper and lower limit, such as: the upper and lower limit of the first frequency range is fOn~fOn+ W, the upper and lower limit of the second frequency range is fOn+W~fOn+2*W；These numbers
According to using the upper and lower cut-off frequency as each frequency band filter of rear class；
Frequency range segmentation module, is made up of the digital band-pass filter of a width of W of N number of band, and N is natural number, and function is by whole music
Signal is divided into frequency band and overlaps but nonoverlapping N number of frequency band signals, and the upper and lower cut-off frequency of each band filter is just
It it is the upper and lower limit frequency of the corresponding frequency band that prime obtains；Music signal is transformed into frequency domain by time domain by Fourier transformation module,
Determining the frequency field that energy is relatively concentrated on its spectrogram, the frequency that this region upper and lower limit is corresponding is called fOnAnd fUnder；Again
By (fOn-fUnderThis region is divided into N number of frequency range by)/N=W, and the width of each frequency range is W, and then can release each frequency range
Upper and lower limit, as the design parameter of each band filter of rear class；The cut-off frequency of the band filter of a width of W of N number of band is respectively
The upper and lower limit frequency of the aforementioned N number of frequency range obtained；Music signal is divided into frequency band by after such N number of parallelism wave filter
Overlap but nonoverlapping N number of frequency band signals；Binding module is by the donut one of N number of frequency band signals Yu N number of different radii
One corresponding binding, internal ring correspondence low-frequency range, outer shroud correspondence high band, and every layer of annulus also have one fixed width, each annulus from
Directly over start, prolong and clockwise 360 scales are set, by all frequency components in corresponding frequency band from low to high
It is evenly distributed on 360 scales of this annulus, by the width binding of ring at frequency component amplitudes and place scale, i.e.
Ring thickness at each scale represents the amplitude of frequency component corresponding at this, when playing, and the frequency component in each frequency range
Amplitude all can change in time, and this change will be reacted directly in the thickness change at the corresponding scale of corresponding annulus；
The color of the most each ring sets, i.e. warm colour correspondence high-pitched tone, cool colour correspondence low pitch according to " color and the corresponding relation of tone ",
Outer shroud frequency is the highest, represents by redness, and innermost ring frequency is minimum, represents by blueness, thus indirectly by the emotion of tone Yu people
Connect；
Binding module, binding module has N group, by three part compositions: frequency range is bound with annulus with annulus binding part, color
Partly, scale binds part with frequency component amplitudes；This three part is " to be expressed by the difference in later stage special effect making software
Formula " realize；Specifically, first making N number of donut in later stage special effect making software, every ring has one fixed width, respectively
The color of ring sets according to the corresponding relation of color with tone, i.e. warm colour correspondence high-pitched tone, cool colour correspondence low pitch, outer shroud frequency
Rate is the highest, represents by redness, and innermost ring frequency is minimum, represents by blueness, binds the most one by one；Followed by later stage special effect making
Aforementioned frequency band signals is bound one by one by the expression formula function in software with corresponding donut, low-frequency range correspondence internal ring, high frequency
The corresponding outer shroud of section；The most also will by each annulus from the beginning of surface, prolong and clockwise 360 scales be set, by certain
All frequency components in frequency range are evenly distributed on 360 scales of annulus corresponding to this frequency range from low to high, and profit
Binding by expression formula, the ring width at each scale represents the amplitude of frequency component corresponding at this, when playing, each in frequency range
The amplitude of frequency component all can change in time, and this change is by the change width being reacted directly into corresponding annulus；
Video Rendering module, mainly completes precomputation and the storage function of the required every frame video data of visualization, and mould is play in synthesis
Video signal after block then will render carries out time alignment with former music signal and plays, and so can avoid due to video signal
Every frame data amount is huge, can cause video playback slack problem when processing in real time；Soft particular by later stage special effect making
Part renders what function completed, carries out data calculating according to every bound content of above-mentioned binding module, institute's total will be calculated
According to being first stored in internal memory, in case calling when playing；
Synthesis playing module, mainly by playing two parts and form depending on the synthesis of, audio frequency and depending on, audio frequency, the function of synthesis is by music
Signal with render after video signal carry out time alignment, be to utilize video and audio complex functionality in later stage special effect making software real
Existing；The function play is then that video, voice data are delivered to display device and loudspeaker apparatus respectively.
The circular visual system of music frequency spectrum the most according to claim 1, it is characterised in that described music signal obtains
Module, Fourier transformation module, frequency range segmentation module, binding module, rendering module, synthesis playing module are sequentially connected with.
3. the circular visual method of a music frequency spectrum, it is characterised in that it mainly comprises the steps:
Step one, obtains one section of music, transfers analog music signals to digital signal；
Step 2, imports computer by digital music signal, utilizes programming software Matlab that this signal is carried out fast Fourier change
Change, and draw spectrogram, determine, according to spectrogram, frequency range f that energy is relatively concentratedOn～fUnder, then by (fOn-fUnder)/N=W will
This region is bisected into N number of frequency range, and the width of each frequency range is W, and then draws the upper and lower limit of each frequency range, each as rear class
The upper and lower cut-off frequency of band filter, wherein N takes natural number；
Step 3, the upper and lower limit frequency of N number of frequency range that the band filter of a width of W of N number of band obtains according to prime as itself
Upper and lower cut-off frequency is designed, and is divided into frequency band afterwards mutual after music signal is by N number of parallel band filter
It is connected but nonoverlapping N number of frequency band signals；
Step 4, utilizes later stage special effect making software to be tied up by the donut one_to_one corresponding of N number of frequency band signals with N number of different radii
Fixed, low-frequency range correspondence internal ring, high band correspondence outer shroud, the more each frequency component amplitudes in frequency range is carved with 360 deg on ring
Width binding at degree, finally the corresponding relation further according to color Yu frequency determines the color of each annulus；
Step 5, after having bound, carries out Video Rendering, i.e. according to above-mentioned binding relationship carry out video data precalculate with
Storage；
Step 6, the video signal after rendering carries out time alignment with former digital music signal and plays.
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| CN107393517A (en) * | 2017-07-03 | 2017-11-24 | 腾讯音乐娱乐（深圳）有限公司 | A kind of frequency spectrum display methods and device |
| CN107901694A (en) * | 2017-11-14 | 2018-04-13 | 上海电机学院 | A kind of interactive drawing method and device based on sound frequency value |
| CN108536408A (en) * | 2018-03-05 | 2018-09-14 | 捷开通讯(深圳)有限公司 | Method, terminal and the device with store function of display terminal background picture |
| CN110896578A (en) * | 2018-09-06 | 2020-03-20 | 上海博泰悦臻网络技术服务有限公司 | Music rhythm-based in-vehicle atmosphere lamp adjusting method and system and electronic equipment |
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| CN112738606A (en) * | 2020-12-29 | 2021-04-30 | 广州酷狗计算机科技有限公司 | Audio file processing method and device, terminal and storage medium |
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| WO2022134213A1 (en) * | 2020-12-25 | 2022-06-30 | 瑞声声学科技(深圳)有限公司 | Vibration-frequency designing method based on music frequency |
| CN115129211A (en) * | 2022-04-24 | 2022-09-30 | 北京达佳互联信息技术有限公司 | Method and device for generating multimedia file, electronic equipment and storage medium |
| WO2022271089A1 (en) * | 2021-06-21 | 2022-12-29 | Lemon Inc. | Spectrum algorithm with trail renderer |
| CN116230006A (en) * | 2023-05-09 | 2023-06-06 | 成都力比科技有限公司 | Sound effect visualization method based on GPU |
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