CN101667814A - Audio playing method and audio player - Google Patents
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- CN101667814A CN101667814A CN200910161996A CN200910161996A CN101667814A CN 101667814 A CN101667814 A CN 101667814A CN 200910161996 A CN200910161996 A CN 200910161996A CN 200910161996 A CN200910161996 A CN 200910161996A CN 101667814 A CN101667814 A CN 101667814A
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G5/00—Tone control or bandwidth control in amplifiers
- H03G5/005—Tone control or bandwidth control in amplifiers of digital signals
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Abstract
The invention discloses an audio playing method and an audio player. In the embodiment of the invention, corresponding equalizer parameter is obtained according to the audio type information; the equalizer parameter is loaded to play the audio. The invention realizes automatic EQ setup of audio playing, and users can obtain better playing effect without setting EQ corresponding to the audio type,thus improving hearing experience of users.
Description
Technical field
The present invention relates to the audio signal processing technique field, be specifically related to audio frequency playing method and audio playing apparatus.
Background technology
Along with the digital multimedia application enters huge numbers of families, people can realize the broadcast of digital audio file on computer, CD player, MP3, MP4 even mobile phone, concrete pass through the integrated software of device interior or the hardware audio player is decoded to audio file, be converted into analog quantity output then, common audio file formats comprises: MP3, WAV, MID, AMR, APE etc.
(Equalizer, EQ), the effect of equalizer is a yield value of adjusting each frequency band signals generally all to be provided with equalizer in the player in the audio-frequence player device.What equalizer can be based on Digital Signal Processing part also can be based on the analog part, EQ is by the composition overtone grade correct with each frequency in the sound, aiming at a certain class audio frequency is optimized, strengthen people's auditory perception, allow the user effect of oneself liking is set, make music effect obtain optimum embodiment by the personal like.
In the prior art, setting up procedure for equalizer, the user needs to be provided with voluntarily according to the music of hearing, as the rock and roll types of music, be arranged to the effect that the rock music corresponding parameters can obtain reasonable shock at EQ, the violin sonata is arranged to classical music then more can embody music effect preferably, and the button that perhaps directly drags equalizer is finely tuned.
In research and practice process to prior art, the present inventor finds, in the prior art, though the function of equalizer is provided in various audio-frequence player devices or the computer player, but all need the user to carry out in various degree setting voluntarily at music, operation to the user is higher, and the user was difficult to judge the type and the style of music before music not being appreciated.
Summary of the invention
The embodiment of the invention provides audio frequency playing method and audio playing apparatus, can select suitable EQ parameter automatically when audio plays.
A kind of audio frequency playing method that the embodiment of the invention provides comprises:
Obtain the audio types information of audio frequency to be played;
Obtain corresponding parametric equalizer according to described audio types information;
Load described parametric equalizer and play described audio frequency.
A kind of audio playing apparatus that the embodiment of the invention provides comprises:
First acquiring unit is used to obtain the audio types information of audio frequency to be played;
Second acquisition unit is used for obtaining corresponding parametric equalizer according to described audio types information;
Broadcast unit is used to load described parametric equalizer and plays described audio frequency.
In the embodiment of the invention, obtain corresponding parametric equalizer according to described audio types information; Load described parametric equalizer and play described audio frequency.The automatic EQ that has realized voice playing is provided with, and makes the user need not to be provided with voluntarily the EQ of audio types correspondence, can obtain result of broadcast preferably, improves user's the experience of listening to.
Description of drawings
In order to be illustrated more clearly in the technical scheme in the embodiment of the invention, the accompanying drawing of required use is done to introduce simply in will describing embodiment below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the flow chart of the embodiment of the invention one audio frequency playing method;
Fig. 2 is the flow chart of the embodiment of the invention two audio frequency playing methods;
Fig. 3 is the oscillogram of an audio file in the embodiment of the invention;
Fig. 4 is for to carry out the frequency domain distribution figure that Fourier transform obtains to audio file;
Fig. 5 is the flow chart of the embodiment of the invention three audio frequency playing methods;
Fig. 6 is the flow chart of the embodiment of the invention four audio frequency playing methods;
Fig. 7 is the embodiment of the invention five notes of traditional Chinese music structural representations of playing device frequently;
Fig. 8 is the structural representation of the embodiment of the invention six audio playing apparatus.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that is obtained under the creative work prerequisite.
Embodiment one, a kind of audio frequency playing method, flow chart comprises as shown in Figure 1:
S1 obtains the audio types information of audio frequency to be played;
The mode of obtaining audio types information in this example can have multiple, specifically referring to the description of following examples two to four.
S2 obtains corresponding parametric equalizer according to described audio types information;
S3 loads described parametric equalizer and plays described audio frequency.
In the present embodiment, obtain corresponding parametric equalizer according to described audio types information; Load described parametric equalizer and play the automatic EQ setting that described audio frequency has been realized voice playing, make the user need not to be provided with voluntarily the EQ of audio types correspondence, can obtain result of broadcast preferably, improve user's the experience of listening to.
Embodiment two, a kind of audio frequency playing method, flow chart comprises as shown in Figure 2:
A1 carries out spectrum analysis to audio frequency to be played, obtains the frequency domain distribution of described audio frequency to be played;
In the embodiment of the invention, carry out spectrum analysis can software or hardware calculate and finish, if based on equipment such as the computer of generic structure, PDA mobile phones, can realize by software algorithm, and based on the audio player of special use, as equipment such as MP3, CD player, MD machines, can realize by the integrated spectrum analysis function of audio decoder chip, concrete implementation can be with reference to existing multiple frequency spectrum analysis method, and the present invention does not do and gives unnecessary details.
The process of specifically carrying out spectrum analysis can have multiple, for example:
To carry out segmentation to the frequency domain of audio frequency to be played; The range that people's ear can be heard is from 20HZ～20KHZ, so present embodiment carries out segmentation according to the segmented mode of internal system equalizer to music.
(digital singnal processor DSP) obtains the time-domain information of audio frequency to be played, and described time-domain information is carried out Fourier transform, obtains the frequency domain information of audio frequency to be played by Digital Signal Processing.As shown in Figure 3, be the oscillogram (time-domain information) of audio file, wherein abscissa is a time shaft, and ordinate is the amplitude of audio frequency.Fig. 4 is for to carry out the frequency domain distribution figure that Fourier transform obtains to the audio file among Fig. 3, and wherein abscissa is that frequency, the ordinate of music are Signal to Interference plus Noise Ratio (dB of unit).
Add up the frequency domain distribution of audio frequency in each segmentation frequency domain to be played;
Through above-mentioned statistics, can obtain the percentage that accounts for total audio frequency component of the interior audio frequency component of each frequency range in the audio file.As: 20% sound frequency is arranged in the whole audio frequency between 1000HZ～1500HZ, have 35% sound frequency between 1500HZ～8000HZ, have 50% sound to concentrate between 8000HZ～15000HZ ....
A2 obtains corresponding parametric equalizer according to the frequency domain distribution of described audio frequency to be played, and concrete parametric equalizer can take multiple mode to obtain, and comprising:
Analysis through above-mentioned steps A, can learn the distribution of audio frequency in each frequency range, then can select corresponding parametric equalizer according to this distribution, carrying out process that parameter selects can be respectively to organize parametric equalizer and compare according to the audio frequency frequency domain distribution with setting in advance, and obtains immediate parametric equalizer.
A3, the parametric equalizer that loads described setting is play described audio frequency.
The process that concrete loading balance device parameter is carried out voice playing can repeat no more with reference to the processing of existing multiple audio player herein.
In the embodiment of the invention one, carry out spectrum analysis for audio frequency to be played; Obtain corresponding parametric equalizer according to described results of spectral; The parametric equalizer that loads described setting is play described audio frequency, has realized that the automatic EQ of voice playing is provided with, and makes the user need not to be provided with voluntarily the EQ of audio types correspondence, can obtain result of broadcast preferably, improves user's the experience of listening to.
Embodiment three, a kind of audio frequency playing method, flow chart comprises as shown in Figure 5:
B1 carries out spectrum analysis for audio frequency to be played;
In the embodiment of the invention, carry out spectrum analysis can software or hardware calculate and finish, if based on equipment such as the computer of generic structure, PDA mobile phones, can realize by software algorithm, and based on the audio player of special use, can realize that concrete implementation can be with reference to existing multiple frequency spectrum analysis method by the integrated spectrum analysis function of audio decoder chip as equipment such as MP3, CD player, MD machines, the present invention does not do and gives unnecessary details.
The process of specifically carrying out spectrum analysis can repeat no more with reference to the description of embodiment one steps A 1 herein.
B2 obtains the corresponding audio type according to results of spectral;
B3 searches the parametric equalizer of described audio types correspondence according to the default audio types and the corresponding relation of parametric equalizer.
B4, the parametric equalizer that loads described setting is play described audio frequency.
The process that concrete loading balance device parameter is carried out voice playing can repeat no more with reference to the processing of existing multiple audio player herein.
Embodiment two is that with the difference of embodiment one obtain the corresponding audio type according to the spectrum analysis result earlier, audio types comprises:: rock music, pop music, jazz, country music, classical music etc.And in the prior art, generally be configured the EQ parameter of corresponding acquiescence for different audio types, and make that the result of the embodiment of the invention and prior art is compact more, and practical more.
Embodiment four, a kind of audio frequency playing method, flow chart comprises as shown in Figure 6:
C1 obtains the audio types information of audio frequency to be played;
In the present embodiment, the obtain manner of audio types information can have multiple, for example: can analyze described audio frequency, obtain the audio types information of audio identification sign indicating number part, also can be to increase an audio types description sign to be used to represent audio types information in audio file.
No matter take which kind of mode to obtain audio types information or expression audio types information, the embodiment of the invention is emphasized, audio types informational needs unified standard, and be the discernible consolidation form of audio player, for example fairly simple form can be: adopt 3 binary digit binary numbers to represent, on behalf of rock music, " 010 ", " 000 " representative " 001 " represent pop music, " 011 " to represent jazz, " 100 " to represent country music, " 101 " to represent classical music ...
C2 obtains the parametric equalizer of audio types information correspondence according to the corresponding relation of described audio types information and parametric equalizer;
Player in the present embodiment needs to preserve the corresponding parametric equalizer of different audio types.
C3 loads described parametric equalizer and plays described audio frequency.
The kind audio frequency playing method that provides in the embodiment of the invention three, by in audio file, increasing audio types information, player is selected EQ parameter audio plays automatically according to audio types information, makes the user need not to regulate voluntarily EQ, can obtain satisfied result of broadcast and listen to impression.
One of ordinary skill in the art will appreciate that the whole bag of tricks of the foregoing description or all or part of step in the device are to instruct relevant hardware to finish by program, this program can be stored in the computer-readable recording medium, and storage medium can comprise: ROM, RAM, disk or CD etc.
The audio playing apparatus that the embodiment of the invention is provided is described in detail below.For convenience of explanation, only show the part relevant with the embodiment of the invention, this audio playing apparatus can be common multimedia equipments such as MP3, MP4, mobile phone, and its functional module/unit that comprises can be module/unit that hardware module/unit, software module/unit or software and hardware combine.
Embodiment five, a kind of audio playing apparatus, structural representation comprises as shown in Figure 7:
First acquiring unit 710 is used to obtain the audio types information of audio frequency to be played;
In the present embodiment, described first acquiring unit can take multiple mode to obtain audio types information, for example: described first acquiring unit 710 can comprise reading unit 711, is used for partly reading from the identification code of described audio frequency to be played the audio types information of described audio frequency to be played.
Certainly, first acquiring unit can also take other modes to obtain audio types information, is illustrated below by embodiment five.
Embodiment six, a kind of audio playing apparatus, structural representation comprises as shown in Figure 8:
First acquiring unit 810 is used to obtain the audio types information of audio frequency to be played;
In this example, described first acquiring unit 810 comprises:
Converting unit 811 is used for obtaining by DSP the time-domain information of audio frequency to be played, and described time-domain information is carried out Fourier transform, obtains the frequency domain information of audio frequency to be played, and described spectral analysis unit is carried out spectrum analysis according to described frequency domain information.
Segmenting unit 8121 is used for the frequency domain of audio frequency to be played is carried out segmentation;
The method that the invention audio playing apparatus can move repeats no more with reference to the description of said method embodiment herein.
More than audio frequency playing method and audio playing apparatus that the embodiment of the invention provided are described in detail, wherein:
In one embodiment of the invention, carry out spectrum analysis for audio frequency to be played; Obtain corresponding parametric equalizer according to described results of spectral; The parametric equalizer that loads described setting is play described audio frequency, has realized that the automatic EQ of voice playing is provided with, and makes the user need not to be provided with voluntarily the EQ of audio types correspondence, can obtain result of broadcast preferably, improves user's the experience of listening to.
In yet another embodiment of the invention, obtain the corresponding audio type according to the spectrum analysis result earlier, audio types comprises: rock music, pop music, jazz, country music, classical music etc.And in the prior art, generally be configured the EQ parameter of corresponding acquiescence for different audio types, and make that the result of the embodiment of the invention and prior art is compact more, and practical more.
The kind audio frequency playing method of confession in yet another embodiment of the invention, by in audio file, increasing audio types information, player is selected EQ parameter audio plays automatically according to audio types information, makes the user need not to regulate voluntarily EQ, can obtain satisfied result of broadcast and listen to impression.
Used specific case herein principle of the present invention and execution mode are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, the part that all can change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (11)
1, a kind of audio frequency playing method is characterized in that, comprising:
Obtain the audio types information of audio frequency to be played;
Obtain corresponding parametric equalizer according to described audio types information;
Load described parametric equalizer and play described audio frequency.
2, the method for claim 1 is characterized in that, the described audio types information of obtaining audio frequency to be played is specially:
Audio frequency to be played is carried out spectrum analysis, obtain the frequency domain distribution of described audio frequency to be played;
Obtain the audio types information of described audio frequency to be played according to described frequency domain distribution.
3, as method as described in the claim 2, it is characterized in that, described audio frequency to be played carried out comprising before the spectrum analysis:
Obtain the time-domain information of audio frequency to be played by Digital Signal Processing DSP, described time-domain information is carried out Fourier transform, obtain the frequency domain information of audio frequency to be played.
4, method as claimed in claim 2 is characterized in that, the described frequency domain distribution of obtaining described audio frequency to be played is specially:
Frequency domain to audio frequency to be played carries out segmentation, analyzes each frequency band audio percentage composition;
The described audio types information of obtaining described audio frequency to be played according to described frequency domain distribution is: the audio types information of obtaining described audio frequency to be played according to each frequency band audio percentage composition of audio frequency to be played.
5, the method for claim 1 is characterized in that, the described audio types information of obtaining audio frequency to be played is specially:
Partly read the audio types information of described audio frequency to be played from the identification code of described audio frequency to be played.
6, as any described method of claim 1 to 5, it is characterized in that described audio types information comprises: one or more in rock music, pop music, jazz, country music, the classical music.
7, a kind of audio playing apparatus is characterized in that, comprising:
First acquiring unit is used to obtain the audio types information of audio frequency to be played;
Second acquisition unit is used for obtaining corresponding parametric equalizer according to described audio types information;
Broadcast unit is used to load described parametric equalizer and plays described audio frequency.
8, as device as described in the claim 7, it is characterized in that described first acquiring unit comprises:
Spectral analysis unit is used for audio frequency to be played is carried out spectrum analysis, obtains the frequency domain distribution of described audio frequency to be played;
Information acquisition unit, first acquiring unit frequency domain distribution that analysis obtains according to described spectrum analysis subelement is obtained the audio types information of described audio frequency to be played.
9, as device as described in the claim 8, it is characterized in that described first acquiring unit also comprises:
Converting unit is used for obtaining by DSP the time-domain information of audio frequency to be played, and described time-domain information is carried out Fourier transform, obtains the frequency domain information of audio frequency to be played, and described spectral analysis unit is carried out spectrum analysis according to described frequency domain information.
10, as device as described in the claim 8, it is characterized in that described spectrum analysis analytic unit comprises:
Segmenting unit is used for the frequency domain of audio frequency to be played is carried out segmentation;
Analytic unit is used to analyze each frequency band audio percentage composition.
11, as device as described in the claim 7, it is characterized in that described first acquiring unit comprises:
Reading unit is used for partly reading from the identification code of described audio frequency to be played the audio types information of described audio frequency to be played.
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| CN2009101619963A CN101667814B (en) | 2009-09-24 | 2009-09-24 | Audio playing method and audio player |
| PCT/CN2010/074558 WO2011035626A1 (en) | 2009-09-24 | 2010-06-26 | Audio playing method and audio playing apparatus |
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| CN2009101619963A CN101667814B (en) | 2009-09-24 | 2009-09-24 | Audio playing method and audio player |
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| CN101930776A (en) * | 2010-08-02 | 2010-12-29 | 华为终端有限公司 | Music file recognition and playing method and device |
| WO2011035626A1 (en) * | 2009-09-24 | 2011-03-31 | 华为终端有限公司 | Audio playing method and audio playing apparatus |
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| CN101667814B (en) | 2012-08-15 |
| WO2011035626A1 (en) | 2011-03-31 |
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