CN107249080A - A kind of method, device and mobile terminal for adjusting audio - Google Patents
A kind of method, device and mobile terminal for adjusting audio Download PDFInfo
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- CN107249080A CN107249080A CN201710496440.4A CN201710496440A CN107249080A CN 107249080 A CN107249080 A CN 107249080A CN 201710496440 A CN201710496440 A CN 201710496440A CN 107249080 A CN107249080 A CN 107249080A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
- H04M1/724—User interfaces specially adapted for cordless or mobile telephones
- H04M1/72403—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality
- H04M1/72442—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality for playing music files
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
- H04M1/724—User interfaces specially adapted for cordless or mobile telephones
- H04M1/72448—User interfaces specially adapted for cordless or mobile telephones with means for adapting the functionality of the device according to specific conditions
- H04M1/72454—User interfaces specially adapted for cordless or mobile telephones with means for adapting the functionality of the device according to specific conditions according to context-related or environment-related conditions
Abstract
The embodiment of the present invention belongs to communication technical field, and there is provided a kind of method, device and mobile terminal for adjusting audio.Methods described includes：Corresponding target musical features are extracted from the audio signal of target music file；Search the musical genre information of the matching target musical features；When playing the target music file, the audio configuration information of the loading correspondence musical genre information.The embodiment of the present invention solves the musical genre loss of learning because of music file, causes when playing the music file, it is impossible to the problem of loading correspondence audio configuration information；The embodiment of the present invention improves the discrimination of musical genre information, can automatically according to different music files musical genre information, load corresponding audio configuration information, improve the operating experience and music experience of user.
Description
Technical field
The present invention relates to communication technical field, more particularly to a kind of method, device and mobile terminal for adjusting audio.
Background technology
With the popularization of electronic equipment, people increasingly tend to use electronics device plays music.Listened to lift user
Sense, in playback equipment often built-in various audio configuration informations to be adapted to different musical genre information.When user plays different
, it is necessary to which the audio configuration information for being frequently changed playback equipment can just make it be adapted to currently playing sound during the music file of school
Music file, to reach preferably result of broadcast.
Current most of playback equipments are selected using the musical genre information in the attribute information read in music file
Corresponding audio configuration information, such as the musical genre information of music file to be played is rock music, then loads correspondence and shake
The audio configuration information of rolling music is played out.
But in actual applications, the musical genre loss of learning of many music files causes playing above-mentioned music text
During part, it is impossible to the problem of loading correspondence audio configuration information.
The content of the invention
The embodiment of the present invention provides a kind of method for adjusting audio, is lacked with the musical genre information solved because of music file
Lose, cause when playing above-mentioned music file, it is impossible to the problem of loading correspondence audio configuration information.
In order to solve the above-mentioned technical problem, the present invention is realized in：A kind of method for adjusting audio, including：
Corresponding target musical features are extracted from the audio signal of target music file；
Search the musical genre information with the target music characteristic matching；
When playing the target music file, audio configuration information corresponding with the musical genre information is loaded.
The embodiment of the present invention additionally provides a kind of device for adjusting audio, including：
Music features extraction module, it is special for extracting corresponding target music from the audio signal of target music file
Levy；
Musical genre information searching module, for searching the musical genre information with the target music characteristic matching；
Audio configures load-on module, for when playing the target music file, loading and the musical genre information
Corresponding audio configuration information.
Another embodiment of the present invention provides a kind of mobile terminal, including processor, memory and is stored in the storage
In device and can be run in the processor adjustment audio program, the program of the adjustment audio is by the computing device
The step of method of adjustment audios of the Shi Shixian as any one of above-mentioned claim.
Further embodiment of this invention is provided on a kind of computer-readable recording medium, the computer-readable recording medium
It is stored with and adjusts the program of audio, is realized when the program of the adjustment audio is executed by processor as any in above-mentioned claim
The step of method of adjustment audio described in.
In embodiments of the present invention, first by extracting target musical features from the audio signal of target music file,
Then the musical genre information of target music file is found according to above-mentioned target musical features, so as to be broadcast in target music file
When putting, the audio configuration information of musical genre information corresponding with target music file is loaded, therefore is solved because of music file
Musical genre loss of learning, cause play above-mentioned music file when, it is impossible to loading correspondence audio configuration information the problem of；This
Inventive embodiments improve the discrimination of musical genre information, can automatically according to different music files musical genre information,
Corresponding audio configuration information is loaded, the operating experience and music experience of user is improved.
Brief description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below by institute in the description to the embodiment of the present invention
The accompanying drawing needed to use is briefly described, it should be apparent that, drawings in the following description are only some implementations of the present invention
Example, for those of ordinary skill in the art, without having to pay creative labor, can also be according to these accompanying drawings
Obtain other accompanying drawings.
Fig. 1 shows a kind of step flow chart of the method for adjustment audio of the inventive method embodiment one；
Fig. 2 shows a kind of step flow chart of the method for adjustment audio of the inventive method embodiment two；
Fig. 3 shows a kind of structured flowchart of the device of adjustment audio of apparatus of the present invention embodiment three；
Fig. 4 shows the structured flowchart of the device of another adjustment audio of apparatus of the present invention embodiment three；
Fig. 5 shows a kind of structured flowchart of mobile terminal of apparatus of the present invention example IV；
Fig. 6 shows a kind of structural representation of mobile terminal of apparatus of the present invention embodiment five.
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.
The technical scheme of the embodiment of the present invention can apply to various music players, for example, can apply to mobile whole
End, desktop computer, MP3 player etc. have the electronic equipment of playing music function, can also be applied to page end music
Player, client music player etc. can play the software of the music file stored with digital signal form.
【Embodiment of the method one】
Shown in reference picture 1, the embodiments of the invention provide a kind of method for adjusting audio, it can specifically include step 101-
103：
Step 101：Corresponding target musical features are extracted from the audio signal of target music file.
In embodiments of the present invention, corresponding target music is extracted from the audio signal of above-mentioned target music file special
Levy；Above-mentioned target music file can be music file to be played；Above-mentioned audio signal can be above-mentioned target music file
Complete audio signal；Can also be a certain section audio signal or multistage audio signal in above-mentioned target music file.
Above-mentioned target musical features can be to above-mentioned audio signal carry out signal processing analysis after, such as time-domain analysis,
Frequency-domain analysis, wavelet analysis etc., temporal signatures, frequency domain character, the time-frequency characteristics of above-mentioned audio signal of extraction etc., such as amplitude
Feature, fundamental wave feature, harmonic characteristic etc..
It is understood that above-mentioned amplitude Characteristics correspond to the loudness feature of target music file；Above-mentioned fundamental wave feature pair
Should be in the tonality feature of above-mentioned target music file；Above-mentioned harmonic characteristic corresponds to the tamber characteristic of target music file.
For example, the above-mentioned target musical features extracted can be expressed as in mathematical modeling：
[X1, X2, X3..., Xn], the set of the above-mentioned target musical features of this set expression, what wherein X was represented is target sound
Happy feature, can be the form of scalar, can be the form of vector or the form or other forms of matrix；
Lower footnote 1,2,3 ..., what n was represented is the type of target musical features, such as 1 represents short-time energy, and 2 represent short-time average width
Degree etc..
Step 102：Search the musical genre information with above-mentioned target music characteristic matching.
In embodiments of the present invention, the musical genre information with above-mentioned target music characteristic matching is searched；Above-mentioned music stream
Information is sent to include country music, rock music, classical music etc.；Can be locally or through the default music of NetFind
The corresponding relation of genre information and preset musical feature, above-mentioned corresponding relation can be the form of table, the form of database, or
It is other forms.
With reference to shown in table 1, in a kind of optional mode of the embodiment of the present invention, it can be believed by searching default musical genre
Breath and the table of comparisons of preset musical feature, obtain music stream corresponding with the preset musical feature of above-mentioned target music characteristic matching
Send information.
Table 1
| Musical genre information | Preset musical feature |
| A | [A1, A2, A3..., An] |
| B | [B1, B2, B3..., Bn] |
| C | [C1, C2, C3..., Cn] |
Step 103：When playing above-mentioned target music file, audio configuration corresponding with above-mentioned musical genre information is loaded
Information.
It is understood that with reference to shown in table 2, above-mentioned audio configuration information can be the music carried from music player
Genre information with finding audio configuration information corresponding in above-mentioned musical genre information in the corresponding relation of audio configuration information,
The default musical genre information of local or NetFind and the corresponding relation of audio configuration information can also be passed through.
Table 2
| Musical genre | Audio configuration information |
| A | a |
| B | b |
| C | c |
Audio configuration information is loaded in the voice data stream of above-mentioned target music file, then by analog circuitry processes, finally
The sound played back, is exactly loaded with the sound of the target music file of audio configuration information.Audio can be further enhanced
The characteristics such as the sense of reality, the atmosphere of target music file, can include EAX, action audio, atmosphere audio etc..
Audio configuration information can include configuration information, configuration information of sound stereo-circulation effect of balanced device etc.；
The configuration information of weighing apparatus can be to the audio signal of target music file according to signal frequency it is different carry out signal gains or
Signal weaken, for example by audio signal according to frequency different demarcation be 50Hz grades, 200Hz grades, 1KHz grades, 3KHz grades,
14KHz grades, every grade has 10 grades of regulations：- 15dB (decibel, decibel), -12dB, -9dB, -6dB, -3dB, 0dB ,+3dB ,+
6dB ,+9dB ,+12dB ,+15dB；For example, audio configuration information is to 50Hz grades of+6dB, it may be possible to 20Hz-60Hz frequencies
Signal gain+the 6dB of scope, can lift the strong sensation of target music file, give people the sensation rung very much, such as thunder.
The embodiment of the present invention is not limited to the audio configuration information of above-mentioned example.
In embodiments of the present invention, first by extracting target musical features from the audio signal of target music file,
Then the musical genre information of target music file is found according to above-mentioned target musical features, so as to be broadcast in target music file
When putting, the audio configuration information of musical genre information corresponding with target music file is loaded, therefore is solved because of music file
Musical genre loss of learning, cause play above-mentioned music file when, it is impossible to loading correspondence audio configuration information the problem of；This
Inventive embodiments improve the discrimination of musical genre information, can automatically according to different music files musical genre information,
Corresponding audio configuration information is loaded, the operating experience and music experience of user is improved.
【Embodiment of the method two】
Shown in reference picture 2, the embodiments of the invention provide a kind of method for adjusting audio, it can specifically include step 201-
206：
Step 201：Audio signal after acquisition target music file is decoded.
In a kind of optional mode of the embodiment of the present invention, the target music file warp knit of setting time length can be obtained
The decoded audio signal of decoding processor, such as the PCM after the above-mentioned target music file of acquisition 10 seconds is decoded (compile by pulse
Code modulation, Pulse Code Modulation) audio signal.
If above-mentioned target music file needs to download for online broadcasting, the buffered data to being downloaded before playing can be passed through
The audio signal that decoding obtains above-mentioned target music file is carried out, and then extracts corresponding target musical features.
Step 202：The temporal signatures and/or frequency domain character of above-mentioned audio signal are extracted as above-mentioned target musical features.
In a kind of embodiment of the embodiment of the present invention, above-mentioned audio signal is carried out at time domain and/or frequency domain data
Reason, the temporal signatures and/or frequency domain character for extracting above-mentioned audio signal are used as above-mentioned target musical features；Can be by above-mentioned
Audio signal carries out carrying out time domain data processing after framing windowing process, can be (quick by carrying out FFT to above-mentioned audio signal
Fourier transformation, Fast Fourier Transformation) conversion after carry out frequency domain data processing.
Alternatively, the temporal signatures and/or frequency domain character of the above-mentioned audio signal of said extracted are special as above-mentioned target music
The step 202 levied can include：
Preemphasis processing and normalized are carried out to above-mentioned audio signal；
Above-mentioned audio signal is divided into by multiple audio frames according to preset time period；
Extract corresponding with above-mentioned multiple audio frames temporal signatures and/or frequency domain character and be used as above-mentioned target musical features.
Above-mentioned preemphasis processing is a kind of signal processing mode lifted to audio signal high fdrequency component.Because in reality
During border, the power spectrum of audio signal reduces with the increase of frequency, and its most of energy is concentrated in low-frequency range, and this is just
Unacceptable degree may be dropped to by causing the signal to noise ratio of audio signal front end, therefore using preemphasis processing increase audio letter
Number high frequency resolution.Specifically, it can realize that preemphasis is handled by high-pass digital filter.Above-mentioned normalized is normal
That sees simplifies the information processing manner calculated, and the process object for having dimension is transformed into nondimensional process object so that processing
As a result there can be wider applicability.
Audio signal is a kind of signal of time to time change, it is believed that in a bit of time (general 10~
30ms) audio signal is approximately constant, i.e., audio signal has short-term stationarity；Sub-frame processing can be carried out to audio signal, pressed
Above-mentioned audio signal is divided into multiple audio frames (being referred to as analysis frame) to be handled according to preset time period, it is corresponding
Musical features are properly termed as musical features in short-term.
The sub-frame processing of audio signal is usually the method that is weighted using moveable finite length window to realize
, i.e. adding window sub-frame processing, to solve because carrying out naturalness and company that sub-frame processing destroys audio signal to audio signal
Continuous property, the problem of causing spectral leakage.General audio frame number per second can be 33~100 frames, depending on actual conditions.Framing
Although the method that processing can use contiguous segmentation, typically will using overlapping segmentation method, this be in order that audio frame it
Between seamlessly transit, keep its continuity.The overlapping part of former frame and a later frame is referred to as frame shifting, and frame shifting and the ratio of frame length are general
0~0.5；Wherein frame length is number or the sampling time of the sampled point of an audio frame.For example, the sample rate for 6 seconds is
50kHz pcm audio signal, it is frame length to take 30ms, and 15ms moves for frame, then above-mentioned audio signal is divided into 401 audio frames,
The number of the sampled point of each audio frame, i.e. number of samples are 1500.In specific implementation, rectangular window, the Chinese can be selected peaceful
The conventional window function of the Speech processings such as window, quarter window carries out adding window sub-frame processing.For example, the window function of Hanning window such as following formula
It is shown：
To each audio frameNew audio frame X is obtained after window function W (n) windowing processesm(n)：
Wherein Xm(n) be m-th of audio frame n-th of sampled value, i.e. amplitude；N is frame length,
The number of sampled point in i.e. one audio frame；N represents n-th each sampled point in audio frame, n=1,2,3 ... N.
Exemplarily, above-mentioned temporal signatures can include short-time energy, above-mentioned short-time energy rlowIt is defined as in a text
It is less than the ratio of the audio frame of average energy in window；Na is the number of audio frame in a documentwindow, and N is sample in an audio frame
This number.
Wherein, xrmsFor short-time average energy, x (n) is the sampled value of n-th of sample point.
For example, the pcm audio signal that the sample rate for above-mentioned 6 seconds is 50kHz, it is frame length to take 30ms, and 15ms moves for frame；
It is a documentwindow that the audio signal of above-mentioned 6 seconds, which can be taken, then Na is that 401, N is 1500.
Exemplarily, above-mentioned temporal signatures can include short-time zero-crossing rate zero-cross, be defined as audio signal when
Between on by the number of times of zero-crossing rate, be widely used in speech retrieval and speech recognition, be also to discriminate between musical genre
Important descriptor.
Wherein, N is the number of sample in an audio frame, and x (n) is the sampled value of n-th of sample point, and sign (t) is in t>
It is 1 when 0, in t<It is 0 when 0.
Alternatively, above-mentioned temporal signatures include：Any in amplitude, short-time energy, short-time average magnitude, short-time zero-crossing rate
Plant or be combined；Above-mentioned frequency domain character includes：Any of frequency spectrum, fundamental wave, harmonic wave, cepstrum, formant, resonant frequency
Or any combination.
Exemplarily, above-mentioned amplitude includes the features such as maximum amplitude, minimum amplitude, the average amplitude of above-mentioned audio signal
Value, can be the characteristic vector of the average amplitude composition of each audio frame, can also be other forms；It is understood that other
The description of above-mentioned temporal signatures and frequency domain character referring again to above-mentioned amplitude.In a word, it is inner without limitation when of the invention.
Step 203：By calculating above-mentioned target musical features and the phase of each preset musical feature in preset musical database
Like coefficient, it is determined that preset musical feature corresponding with above-mentioned target musical features.
In embodiments of the present invention, by calculating above-mentioned target musical features and each preset musical in preset musical database
The similarity factor of feature, it is determined that preset musical feature corresponding with above-mentioned target musical features.Above-mentioned musical database can position
In local storage, it can also be located in network, such as high in the clouds；In a word, the embodiment of the present invention is not restricted to this.
Exemplarily, the preset musical database with reference to shown in table 3, above-mentioned target musical features [X1, X2, X3..., Xn]
With preset musical feature [A1, A2, A3..., An], by calculating similarity factor for ΣA={ δ1(X1-A1)2+δ2(X2-A2)2+δ3
(X3-A3)2+…+δn(Xn-An)2, wherein δiFor the weight of the element of the preset musical feature of i types.Pass through more each default sound
The corresponding similarity factor Σ of happy featureA、ΣB、ΣC…ΣNSize, the minimum preset musical feature of similarity factor be with it is upper
State the corresponding preset musical feature of target musical features.
| Musical genre information | Audio configuration information | Preset musical feature |
| A | a | [A1, A2, A3..., An] |
| B | b | [B1, B2, B3..., Bn] |
| C | c | [C1, C2, C3..., Cn] |
| … | … | … |
If the similarity factor that there are multiple formed objects is calculated, or difference is within predetermined threshold value, then can be by pre-
The priority orders first set, contrast the element of the element and above-mentioned target musical features in preset musical feature one by one.For example：
If ΣA=ΣB, then with lower footnote numerical order in the set of above-mentioned preset musical feature and the set of above-mentioned target musical features
For priority orders, i.e., first contrast | X1-A1| with | X1-B1|；If | X1-A1| ＜ | X1-B1|, then preset musical feature [A1, A2,
A3..., An] it is the preset musical feature for corresponding to above-mentioned target musical features；If | X1-A1|=| X1-B1|, then contrast | X2-A2| and
|X2-B2|, so repeat, you can obtain uniquely preset musical feature corresponding with above-mentioned target musical features.
Step 204：According to the corresponding relation of preset musical feature in above-mentioned preset musical database and musical genre information,
Obtain musical genre information corresponding with above-mentioned preset musical feature.
In a kind of optional mode of the embodiment of the present invention, the preset musical database with reference to shown in table 3, according to above-mentioned pre-
If the corresponding relation of preset musical feature and musical genre information in musical database, is obtained corresponding with above-mentioned preset musical feature
Musical genre information.For example, the preset musical feature [A of the above-mentioned above-mentioned target musical features of correspondence1, A2, A3..., An] correspondence
Musical genre information be A.
Step 205：According to music genre information in above-mentioned preset musical database and the corresponding relation of audio configuration information,
Obtain audio configuration information corresponding with above-mentioned musical genre information.
In a kind of optional mode of the embodiment of the present invention, the preset musical database with reference to shown in table 3, according to above-mentioned pre-
If music genre information and the corresponding relation of audio configuration information, are obtained corresponding with above-mentioned musical genre information in musical database
Audio configuration information.For example, the corresponding audio configuration information of above-mentioned musical genre information A is a.
It is understood that passing through preset musical feature and musical genre in preset musical database in the embodiment of the present invention
The corresponding relation of information, searches the musical genre information of target music file, further searches target music file corresponding
Audio configuration information, therefore musical genre classification and the configuration of corresponding audio can be united by preset musical database
One management and renewal, improves the applicability of the method for regulation audio.
Step 206：When playing above-mentioned target music file, audio configuration corresponding with above-mentioned musical genre information is loaded
Information.
In embodiments of the present invention, when playing above-mentioned target music file, load corresponding with above-mentioned musical genre information
Audio configuration information to digital signal processor；Above-mentioned digital signal processor is played out to above-mentioned target music file
During processing, above-mentioned audio configuration information is loaded into the voice data stream of above-mentioned target music file.
In embodiments of the present invention, first by extracting target musical features from the audio signal of target music file,
Then the musical genre information of target music file is found according to above-mentioned target musical features, so as to be broadcast in target music file
When putting, the audio configuration information of musical genre information corresponding with target music file is loaded, therefore is solved because of music file
Musical genre loss of learning, cause play above-mentioned music file when, it is impossible to loading correspondence audio configuration information the problem of；One
Aspect, the embodiment of the present invention improves the discrimination of musical genre information, can automatically according to different music files music stream
Information is sent, corresponding audio configuration information is loaded, improves the operating experience and music experience of user；On the other hand, it is of the invention
Embodiment musical genre classification and the configuration of corresponding audio can be carried out by preset musical database unified management and
Update, improve the applicability of the method for adjustment audio.
It should be noted that for embodiment of the method, in order to be briefly described, therefore it to be all expressed as to a series of action group
Close, but those skilled in the art should know, the embodiment of the present invention is not limited by described sequence of movement, because according to
According to the embodiment of the present invention, some steps can be carried out sequentially or simultaneously using other.Secondly, those skilled in the art also should
Know, embodiment described in this description belongs to preferred embodiment, the involved action not necessarily present invention is implemented
Necessary to example.
【Device embodiment three】
Shown in reference picture 3, the embodiments of the invention provide a kind of device for adjusting audio, it can specifically include：
Music features extraction module 301, for extracting corresponding target music from the audio signal of target music file
Feature；
Musical genre information searching module 302, for searching the musical genre information with above-mentioned target music characteristic matching；
Audio configures load-on module 303, for when playing above-mentioned target music file, loading to be believed with above-mentioned musical genre
Cease corresponding audio configuration information.
Alternatively, shown in reference picture 4, on the basis of above-mentioned Fig. 3, above-mentioned musical genre information searching module 302 can be with
Including：
Preset musical characteristics determining unit 3021, for by calculating above-mentioned target musical features and preset musical database
In each preset musical feature similarity factor, it is determined that preset musical feature corresponding with above-mentioned target musical features；
Musical genre information acquisition unit 3022, for according to preset musical feature and sound in above-mentioned preset musical database
The corresponding relation of happy genre information, obtains musical genre information corresponding with above-mentioned preset musical feature.
Alternatively, above-mentioned musical genre information searching module 302, can also include：
Audio configuration information acquiring unit 3023, for according to music genre information and sound in above-mentioned preset musical database
The corresponding relation of configuration information is imitated, audio configuration information corresponding with above-mentioned musical genre information is obtained.
Alternatively, above-mentioned music features extraction module 301 can include：
Audio signal acquiring unit 3011, for obtain target music file it is decoded after audio signal；
Music features extraction unit 3012, temporal signatures and/or frequency domain character conduct for extracting above-mentioned audio signal
Above-mentioned target musical features.
Alternatively, above-mentioned music features extraction unit 3012 can include：
Subelement is pre-processed, for carrying out preemphasis processing and normalized to above-mentioned audio signal, and according to default
Period is divided into multiple audio frames；
Framing subelement, for above-mentioned audio signal to be divided into multiple audio frames according to preset time period；
Music features extraction subelement, for extracting temporal signatures and/or frequency domain spy corresponding with above-mentioned multiple audio frames
Levy as above-mentioned target musical features.
Alternatively, above-mentioned temporal signatures can include：In amplitude, short-time energy, short-time average magnitude, short-time zero-crossing rate
Any or any combination；Above-mentioned frequency domain character includes：Appointing in frequency spectrum, fundamental wave, harmonic wave, cepstrum, formant, resonant frequency
A kind of or any combination.
In embodiments of the present invention, first by extracting target musical features from the audio signal of target music file,
Then the musical genre information of target music file is found according to above-mentioned target musical features, so as to be broadcast in target music file
When putting, the audio configuration information of musical genre information corresponding with target music file is loaded, therefore is solved because of music file
Musical genre loss of learning, cause play above-mentioned music file when, it is impossible to loading correspondence audio configuration information the problem of；One
Aspect, the embodiment of the present invention improves the discrimination of musical genre information, can automatically according to different music files music stream
Information is sent, corresponding audio configuration information is loaded, improves the operating experience and music experience of user；On the other hand, it is of the invention
Embodiment musical genre classification and the configuration of corresponding audio can be carried out by preset musical database unified management and
Update, improve the applicability of the method for adjustment audio.
【Device embodiment four】
Fig. 5 is the block diagram of the mobile terminal of another embodiment of the present invention.Mobile terminal 500 shown in Fig. 5 includes：Extremely
Few processor 501, memory 502, at least one network interface 504, an other users interface 503.In mobile terminal 500
Each component is coupled by bus system 505.It is understood that bus system 505 is used to realize the company between these components
Connect letter.Bus system 505 is in addition to including data/address bus, in addition to power bus, controlling bus and status signal bus in addition.But
It is that for the sake of clear explanation, various buses are all designated as bus system 505 in Figure 5.
Wherein, user interface 503 can include display, keyboard or pointing device (for example, mouse, trace ball
(trackball), touch-sensitive plate or touch-screen etc..
Memory 502 in the embodiment of the present invention, which is stored with, adjusts the program of audio, and the program of above-mentioned adjustment audio is located
Manage the step of method such as the above-mentioned adjustment audio of any one of above-mentioned claim is realized when device is performed.
It is appreciated that the memory 502 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), erasable programmable is read-only deposits
Reservoir (Erasable PROM, EPROM), Electrically Erasable Read Only Memory (Electrically EPROM, 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 storage
Device (Synchronous DRAM, SDRAM), double data speed synchronous dynamic RAM (Double Data
Rate SDRAM, DDRSDRAM), it is enhanced Synchronous Dynamic Random Access Memory (Enhanced SDRAM, ESDRAM), synchronous
Connect dynamic random access memory (Synch link DRAM, SLDRAM) and direct rambus random access memory
(Direct Ram bus RAM, DRRAM).The embodiment of the present invention description system and method memory 502 be intended to include but
It is not limited to the memory of these and any other suitable type.
In some embodiments, memory 502 stores following element, can perform module or data structure, or
Their subset of person, or their superset：Operating system 5021 and application program 5022.
Wherein, operating system 5021, 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 5022, 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 5022.
In embodiments of the present invention, by calling program or the instruction of the storage of memory 502, specifically, can be application
The program stored in program 5022 or instruction, processor 501 are used to extract corresponding from the audio signal of target music file
Target musical features；Search the musical genre information with above-mentioned target music characteristic matching；Playing above-mentioned target music file
When, load audio configuration information corresponding with above-mentioned musical genre information.
The method that the embodiments of the present invention are disclosed can apply in processor 501, or be realized by processor 501.
Processor 501 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 501 or the instruction of software form.Above-mentioned processing
Device 501 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 device
Part, discrete hardware components.It can realize or perform disclosed each method, step and the logic diagram in the embodiment of the present invention.
General processor can be microprocessor or the processor can also be any conventional processor etc..With reference to present invention implementation
The step of method disclosed in example, can be embodied directly in hardware decoding processor and perform completion, or with decoding processor
Hardware and software module combination perform completion.Software module can be located at random access memory, and flash memory, read-only storage may be programmed
In the ripe storage medium in this area such as read-only storage or electrically erasable programmable memory, register.The storage medium
Positioned at memory 502, processor 501 reads the information in memory 502, the step of completing the above method with reference to its hardware.
It is understood that the embodiment of the present invention description these embodiments can with hardware, software, firmware, middleware,
Microcode or its combination are realized.Realized for hardware, processing unit can be realized in one or more application specific integrated circuits
(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, controller, microcontroller, microprocessor, for performing the other of the application above-mentioned functions
In electronic unit or its combination.
For software realize, can by perform the module (such as process, function) of above-mentioned functions of the embodiment of the present invention come
Realize the above-mentioned technology of the embodiment of the present invention.Software code is storable in memory and by computing device.Memory can
To realize within a processor or outside processor.
Alternatively, processor 501 is additionally operable to：By calculate above-mentioned target musical features with it is each pre- in preset musical database
If the similarity factor of musical features, it is determined that preset musical feature corresponding with above-mentioned target musical features；According to above-mentioned default sound
The corresponding relation of preset musical feature and musical genre information in happy database, obtains sound corresponding with above-mentioned preset musical feature
Happy genre information.
Further, processor 501 is additionally operable to：Matched somebody with somebody according to music genre information in above-mentioned preset musical database with audio
The corresponding relation of confidence breath, obtains audio configuration information corresponding with above-mentioned musical genre information.
Alternatively, processor 501 is additionally operable to：Audio signal after acquisition target music file is decoded；Extract above-mentioned sound
The temporal signatures and/or frequency domain character of frequency signal are used as above-mentioned target musical features.
Further, processor 501 is additionally operable to：Preemphasis processing and normalized are carried out to above-mentioned audio signal；Root
Above-mentioned audio signal is divided into multiple audio frames according to preset time period；Extract temporal signatures corresponding with above-mentioned multiple audio frames
And/or frequency domain character is used as above-mentioned target musical features.
Mobile terminal 500 can realize each process that mobile terminal is realized in previous embodiment, to avoid repeating, here
Repeat no more.
In embodiments of the present invention, first by extracting target musical features from the audio signal of target music file,
Then the musical genre information of target music file is found according to above-mentioned target musical features, so as to be broadcast in target music file
When putting, the audio configuration information of musical genre information corresponding with target music file is loaded, therefore is solved because of music file
Musical genre loss of learning, cause play above-mentioned music file when, it is impossible to loading correspondence audio configuration information the problem of；One
Aspect, the embodiment of the present invention improves the discrimination of musical genre information, can automatically according to different music files music stream
Information is sent, corresponding audio configuration information is loaded, improves the operating experience and music experience of user；On the other hand, it is of the invention
Embodiment musical genre classification and the configuration of corresponding audio can be carried out by preset musical database unified management and
Update, improve the applicability of the method for adjustment audio.
【Device embodiment five】
Fig. 6 is the structural representation of the mobile terminal of another embodiment of the present invention.Specifically, the mobile terminal in Fig. 6
600 can be mobile phone, tablet personal computer, personal digital assistant (Personal Digital Assistant, PDA) or vehicle mounted electric
Brain etc..
Mobile terminal 600 in Fig. 6 includes radio frequency (Radio Frequency, RF) circuit 610, memory 620, input
Unit 630, display unit 640, processor 660, voicefrequency circuit 670, WiFi (Wireless Fidelity) modules 680 and electricity
Source 690.
Memory 620 in the embodiment of the present invention, which is stored with, adjusts the program of audio, and the program of above-mentioned adjustment audio is located
Manage the step of method such as the above-mentioned adjustment audio of any one of above-mentioned claim is realized when device is performed.
Wherein, input block 630 can be used for the numeral or character information for receiving user's input, and produce and mobile terminal
The signal input that 600 user is set and function control is relevant.Specifically, in the embodiment of the present invention, the input block 630 can
With including contact panel 631.Contact panel 631, 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 631 such as finger, stylus), and according to advance
The formula of setting drives corresponding attachment means.Optionally, contact panel 631 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 660 again, and the order sent of reception processing device 660 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 631.Except contact panel 631, input block
630 can also include other input equipments 632, and other input equipments 632 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 640 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 600.Display unit 640 may include display panel 641, optionally, can use LCD or organic hairs
The forms such as optical diode (Organic Light-Emitting Diode, OLED) configure display panel 641.
It should be noted that contact panel 631 can cover display panel 641, touch display screen is formed, when touch display screen inspection
Measure after the touch operation on or near it, processor 660 is sent to determine the type of touch event, with preprocessor
660 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..
Wherein processor 660 is the control centre of mobile terminal 600, utilizes various interfaces and connection whole mobile phone
Various pieces, software program and/or module in first memory 621 are stored in by operation or execution, and call storage
Data in second memory 622, perform the various functions and processing data of mobile terminal 600, so as to mobile terminal
600 carry out integral monitoring.Optionally, processor 660 may include one or more processing units.
In embodiments of the present invention, by call store the first memory 621 in software program and/or module and/
Or the data in the second memory 622, processor 660 from the audio signal of target music file for extracting corresponding mesh
Mark musical features；Search the musical genre information with above-mentioned target music characteristic matching；When playing above-mentioned target music file,
Loading audio configuration information corresponding with above-mentioned musical genre information.
Alternatively, processor 660 is additionally operable to：By calculate above-mentioned target musical features with it is each pre- in preset musical database
If the similarity factor of musical features, it is determined that preset musical feature corresponding with above-mentioned target musical features；According to above-mentioned default sound
The corresponding relation of preset musical feature and musical genre information in happy database, obtains sound corresponding with above-mentioned preset musical feature
Happy genre information.
Further, processor 660 is additionally operable to：Matched somebody with somebody according to music genre information in above-mentioned preset musical database with audio
The corresponding relation of confidence breath, obtains audio configuration information corresponding with above-mentioned musical genre information.
Alternatively, processor 660 is additionally operable to：Audio signal after acquisition target music file is decoded；Extract above-mentioned sound
The temporal signatures and/or frequency domain character of frequency signal are used as above-mentioned target musical features.
Further, processor 660 is additionally operable to：Preemphasis processing and normalized are carried out to above-mentioned audio signal；Press
Above-mentioned audio signal is divided into multiple audio frames according to preset time period；Extract temporal signatures corresponding with above-mentioned multiple audio frames
And/or frequency domain character is used as above-mentioned target musical features.
It can be seen that, in embodiments of the present invention, first by extracting target music from the audio signal of target music file
Feature, then finds the musical genre information of target music file according to above-mentioned target musical features, so that in target music
When file is played, the audio configuration information of musical genre information corresponding with target music file is loaded, therefore is solved because of sound
The musical genre loss of learning of music file, causes when playing above-mentioned music file, it is impossible to loading correspondence audio configuration information
Problem；On the one hand, the embodiment of the present invention improves the discrimination of musical genre information, can be automatically according to different music files
Musical genre information, loads corresponding audio configuration information, improves the operating experience and music experience of user；On the other hand,
What the embodiment of the present invention can be unified by preset musical database to musical genre classification and the configuration of corresponding audio
Management and renewal, improve the applicability of the method for adjustment audio.
Those of ordinary skill in the art it is to be appreciated that with reference to disclosed in the embodiment of the present invention embodiment description it is each
The unit and algorithm steps of example, can be realized with the combination of electronic hardware or computer software and electronic hardware.These
Function is performed with hardware or software mode actually, depending on the application-specific and design constraint of technical scheme.Specialty
Technical staff can realize described function to each specific application using distinct methods, but this realization should not
Think beyond the scope of this 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 said units, 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 above-mentioned 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 the mesh of this embodiment scheme according to the actual needs
's.
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 above-mentioned functions are realized using in the form of SFU software functional unit and are 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 above method.
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 above is above-mentioned, only the embodiment of the present 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 (12)
1. a kind of method for adjusting audio, it is characterised in that including：
Corresponding target musical features are extracted from the audio signal of target music file；
Search the musical genre information with the target music characteristic matching；
When playing the target music file, audio configuration information corresponding with the musical genre information is loaded.
2. according to the method described in claim 1, it is characterised in that the lookup and the music of the target music characteristic matching
The step of genre information, including：
By calculating the target musical features and the similarity factor of each preset musical feature in preset musical database, it is determined that with
The corresponding preset musical feature of the target musical features；
According to the corresponding relation of preset musical feature in the preset musical database and musical genre information, obtain with it is described pre-
If the corresponding musical genre information of musical features.
3. method according to claim 2, it is characterised in that the lookup and the music of the target music characteristic matching
The step of genre information, in addition to：
According to music genre information in the preset musical database and the corresponding relation of audio configuration information, obtain and the sound
The corresponding audio configuration information of happy genre information.
4. according to the method described in claim 1, it is characterised in that the extraction pair from the audio signal of target music file
The step of target musical features answered, including：
Audio signal after acquisition target music file is decoded；
The temporal signatures and/or frequency domain character of the audio signal are extracted as the target musical features.
5. method according to claim 4, it is characterised in that the temporal signatures of the extraction audio signal and/or
The step of frequency domain character is as the target musical features include：
Preemphasis processing and normalized are carried out to the audio signal；
The audio signal is divided into by multiple audio frames according to preset time period；
Extract corresponding with the multiple audio frame temporal signatures and/or frequency domain character and be used as the target musical features.
6. a kind of device for adjusting audio, it is characterised in that including：
Music features extraction module, for extracting corresponding target musical features from the audio signal of target music file；
Musical genre information searching module, for searching the musical genre information with the target music characteristic matching；
Audio configures load-on module, for when playing the target music file, loading corresponding with the musical genre information
Audio configuration information.
7. device according to claim 6, it is characterised in that the musical genre information searching module includes：
Preset musical characteristics determining unit, for being preset by calculating the target musical features with each in preset musical database
The similarity factor of musical features, it is determined that preset musical feature corresponding with the target musical features；
Musical genre information acquisition unit, for being believed according to preset musical feature in the preset musical database and musical genre
The corresponding relation of breath, obtains musical genre information corresponding with the preset musical feature.
8. device according to claim 7, it is characterised in that the musical genre information searching module, in addition to：
Audio configuration information acquiring unit, for matching somebody with somebody confidence according to music genre information in the preset musical database and audio
The corresponding relation of breath, obtains audio configuration information corresponding with the musical genre information.
9. device according to claim 6, it is characterised in that the music features extraction module includes：
Audio signal acquiring unit, for obtain target music file it is decoded after audio signal；
Music features extraction unit, for extracting the temporal signatures and/or frequency domain character of the audio signal as the target
Musical features.
10. device according to claim 9, it is characterised in that the music features extraction unit includes：
Subelement is pre-processed, for carrying out preemphasis processing and normalized to the audio signal, and according to preset time
Section is divided into multiple audio frames；
Framing subelement, for the audio signal to be divided into multiple audio frames according to preset time period；
Music features extraction subelement, makees for extracting corresponding with the multiple audio frame temporal signatures and/or frequency domain character
For the target musical features.
11. a kind of mobile terminal, it is characterised in that including processor, memory and be stored in the memory and can be in institute
The program of the adjustment audio run in processor is stated, the program of the adjustment audio is realized such as right during the computing device
It is required that any one of 1 to 5 adjustment audio method the step of.
12. a kind of computer-readable recording medium, it is characterised in that be stored with adjustment sound on the computer-readable recording medium
The program of effect, realizes the adjustment as any one of claim 1 to 5 when the program of the adjustment audio is executed by processor
The step of method of audio.
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