CN103489461A - Method, system and player for playing audio file - Google Patents
Method, system and player for playing audio file Download PDFInfo
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- CN103489461A CN103489461A CN201310430758.4A CN201310430758A CN103489461A CN 103489461 A CN103489461 A CN 103489461A CN 201310430758 A CN201310430758 A CN 201310430758A CN 103489461 A CN103489461 A CN 103489461A
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Abstract
The invention provides a method and system for playing an audio file. The method includes the steps that the audio file with a gain to be played is read, wherein a gain value has been set in a gain option of the attribute information of the audio file; the gain value recorded in the gain option of the attribute information of the audio file is detected; when the gain value is detected to be not equal to 1, a corresponding audio track played by the audio file is multiplied by the gain value to obtain a regulation audio track value, and the audio file is played according to the regulation audio track value. In addition, the invention further provides a player. According to the technical scheme, the method and system for playing the audio file enable all audio files to be played at the same volume so that the volume can be adjusted automatically, volume adjusting efficiency is improved, a user does not need to frequently switch the volume back and forth when listening to music, and the application experience of the user is enhanced.
Description
Technical field
The present invention relates to the audio frequency play-back technology, particularly relate to a kind of audio file play method and system, player.
Background technology
Along with popularizing of intelligent terminal, intelligent terminal occupies an important position in daily life, and people have got used to carrying out browsing page, listening to the music, see video etc. with intelligent machine gradually.Especially mobile product because its volume is small and exquisite, be convenient for carrying, become the first-selected electronic product of listening to the music.
But in use, tend to encounter such problem: be exactly the in different size of different song volume, before possibility, the volume of a piece of music is very little, you need to adjust to maximum by mobile phone volume, arrived next song, it is large that volume becomes suddenly, now, need to regulate continually volume button, readjust volume.Traditional volume automatic adjustment technology, mainly by electronic circuit, volume to be automatically adjusted, after the output source of sound, remove the volume of induction and adjusting audio output apparatus (for example earphone, loudspeaker) from circuit, generally can only be for radio and Mp 3 player etc., but for intelligent terminal and inapplicable.
As can be seen here, the problem of the above-mentioned volume adjusting run in playing the music process, had a strong impact on the user and play the volume adjusting efficiency of music with intelligent terminal, reduced user's application and experienced.
Summary of the invention
Based on this, be necessary for the problems referred to above, a kind of audio file play method and system, player that can automatic regulating volume be provided, improve volume adjusting efficiency, the application that strengthens the user is experienced.
A kind of audio file play method, comprise the steps:
Read the audio file of establishing gain to be played, wherein, the gain option of described audio file attribute information has arranged yield value;
Detect the yield value of the gain option record in the audio file attribute information;
When yield value being detected and be not equal to 1, the track that corresponding audio file is play is multiplied by the adjusted track value of described yield value, and according to described adjusting track value displaying audio file.
A kind of audio file Play System comprises:
The audio file read module, for reading the audio file of establishing gain to be played, wherein, the gain option of described audio file attribute information has arranged yield value;
The yield value detection module, for detection of the yield value of the record of the gain option in the audio file attribute information;
The audio file playing module, for when yield value being detected and be not equal to 1, the track that corresponding audio file is play is multiplied by the adjusted track value of described yield value, and according to described adjusting track value displaying audio file.
Above-mentioned audio file play method and system, automatically regulate broadcast sound volume by the yield value that is arranged on the gain option in the audio file attribute information, can so that each audio file all with identical volume, play, realize that volume regulates automatically, improve volume adjusting efficiency, make the user when listening to music without frequently switching back and forth volume, the application that strengthens the user is experienced.
A kind of audio file play method, comprise the steps:
Read the audio file of not establishing gain to be played, wherein, the gain option of described audio file attribute information does not arrange yield value;
Track in described audio file playing process is collected to the sampled value of volume;
Calculate the yield value of audio file according to described sampled value and preset target volume value;
Described yield value is write in the gain option in the audio file attribute information of corresponding audio file;
When displaying audio file, the track that corresponding audio file is play is multiplied by the adjusted track value of described yield value, and according to described adjusting track value displaying audio file.
A kind of audio file Play System comprises:
The audio file read module, for reading the audio file of not establishing gain to be played, wherein, the gain option of described audio file attribute information does not arrange yield value;
The audio file sampling module, collected the sampled value of volume for the track to described audio file playing process;
Gain value computation module, for calculating the yield value of audio file according to described sampled value and preset target volume value;
The yield value writing module, in the gain option for the audio file attribute information that described yield value write to corresponding audio file;
The audio file read module, for when the displaying audio file, the track that corresponding audio file is play is multiplied by the adjusted track value of described yield value, and according to described adjusting track value displaying audio file.
Above-mentioned audio file play method and system, by calculating the yield value of audio file, and it is write to the gain option in attribute information, automatically regulate broadcast sound volume according to this yield value again, can realize that volume regulates automatically so that each audio file is all play with identical volume, improve volume adjusting efficiency, make the user when listening to music without frequently switching back and forth volume, the application that strengthens the user is experienced.
A kind of player comprises: audio file Play System described above.
Above-mentioned player, by described audio file Play System, can be play each audio file with identical volume, realize that volume regulates automatically, improve volume adjusting efficiency, make the user when listening to music without frequently switching back and forth volume, the application that strengthens the user is experienced.
The accompanying drawing explanation
The audio file play method process flow diagram that Fig. 1 is embodiment mono-;
The structural representation of the audio file Play System that Fig. 2 is embodiment mono-;
The audio file play method process flow diagram that Fig. 3 is embodiment bis-;
The structural representation of the audio file Play System that Fig. 4 is embodiment bis-;
The audio file play method process flow diagram that Fig. 5 is an application example.
Embodiment
Embodiment below in conjunction with accompanying drawing to audio file play method of the present invention and system is described in detail.
Embodiment mono-
Shown in figure 1, the audio file play method process flow diagram that Fig. 1 is embodiment mono-, comprise the steps:
Step S101, read the audio file of establishing gain to be played, and wherein, the gain option of described audio file attribute information has arranged yield value.
Step S102, detect the yield value that the gain option in the audio file attribute information records.
Step S103, when yield value being detected and be not equal to 1, the track that corresponding audio file is play is multiplied by the adjusted track value of described yield value, and according to described adjusting track value displaying audio file.
As a kind of embodiment, audio file play method also comprises step S104, when yield value being detected and equal 1, according to current track value displaying audio file; Concrete, the volume that yield value equals 1 this audio file of explanation is suitable, and yield value, without adjustment, is therefore directly play by original volume.
The audio file play method of the present embodiment, in step S101, be before playing music, read the audio file of establishing gain, this yield value is that the broadcasting gain of adding in the attribute description section of audio file is described, it is the processing to source file, but do not revise the data division of audio file, do not damage audio file, the volume that when this yield value can be according to displaying audio file, the listener relatively adapts to is determined, in addition, also can obtain according to the daily volume statistics of listener.In step S102, be the yield value that detects gain option in the audio file attribute information read record, generally, this yield value is divided into and is equaled 1 or be not equal to 1 two states.In step S103, be not equal to 1 audio file for yield value, in playing process, the track of broadcasting is multiplied by the adjusted track value of yield value, to regulate track value displaying audio file.
The audio file play method of the present embodiment, automatically regulate broadcast sound volume by the yield value that is arranged on the gain option in the audio file attribute information, when the player that utilizes player method of the present invention carries out displaying audio file, each audio file is all play with identical volume, make the user when displaying audio file, without frequently switching back and forth volume, realize that volume regulates automatically.
Based on above-mentioned audio file play method, the present invention also provides a kind of and its audio file Play System one to one.
Shown in figure 2, the structural representation of the audio file Play System that Fig. 2 is embodiment mono-mainly comprises:
Audio file read module 201, for reading the audio file of establishing gain to be played, wherein, the gain option of described audio file attribute information has arranged yield value;
Yield value detection module 202, for detection of the yield value of the record of the gain option in the audio file attribute information;
Audio file playing module 203, for when yield value being detected and be not equal to 1, the track that corresponding audio file is play is multiplied by the adjusted track value of described yield value, and according to described adjusting track value displaying audio file.
As a kind of embodiment, also comprise the live module 204 of audio file, for when yield value being detected and equal 1, according to current track value displaying audio file.
Embodiment bis-
Shown in figure 3, the audio file play method process flow diagram that Fig. 3 is embodiment bis-, comprise the steps:
Step S301, read the audio file of not establishing gain to be played, and wherein, the gain option of described audio file attribute information does not arrange yield value.
Step S302, collected the sampled value of volume to the track in described audio file playing process.
Step S303, calculate the yield value of audio file according to described sampled value and preset target volume value.
Step S304, write described yield value in the gain option in the audio file attribute information of corresponding audio file.
Step S305, when displaying audio file, the track that corresponding audio file is play is multiplied by the adjusted track value of described yield value, and according to described adjusting track value displaying audio file.
As a kind of embodiment, the step of the yield value of the calculating audio file of step S303 can comprise as follows:
At first, utilize preset target volume value to adjudicate described sampled value, determine high-value, median and low-value in sampled value; Concrete, a preset suitable volume value V
pas the target volume value, this value can be determined by counting the volume value that most people relatively adapt to, and also can obtain according to the daily volume statistics of listener, usually can be set to 40 decibels of left and right.When playing, can carry out a volume sampling every 100ms and obtain sampled value.When sampled value higher than target volume value V
p110% the time, the sampled value of this sampled point is divided into to high-value H; When sampled value in target volume value V
p[110%, 90%] time, be divided into median M; When volume value lower than target volume value V
p90% the time, be divided into low-value L.
After above-mentioned processing, according to high-value, median and corresponding gain coefficient and the sampling number calculated gains value thereof of low-value difference, comprising:
M＝(α·Hn+β·Mn+γ·Ln)/(Hn+Mn+Ln)
In formula, M is yield value, and α is the gain coefficient that high-value is corresponding, and β is the gain coefficient that median is corresponding, and γ is gain coefficient corresponding to low-value, and Hn, Mn, Ln are respectively the sampling number of high-value, median and low-value.α, β, γ can be definite according to practical situations, for example, and α=1.5, β=1, γ=0.5.
As another kind of embodiment, the step of the yield value of the calculating audio file of step S303 can also comprise as follows:
Volume equilibrium value according to described sampled value and sampling number calculating audio file thereof comprises:
V
0＝(V
1+V
2+…+V
n)/n
In formula, V
0for the volume equilibrium value, n is sampling number, V
1, V
2..., V
nsampled value for reference numeral;
Calculate the yield value of audio file according to volume equilibrium value and preset target volume value, comprising:
M＝V
0/V
p
In formula, M is yield value, V
0for volume equilibrium value, V
pfor preset target volume value.
The audio file play method of the present embodiment, before playing music, read the audio file of not establishing gain, by in playing this audio file process, track is sampled, utilize sampled value and preset target volume value to calculate suitable yield value, then this yield value is added in the attribute description section of audio file in the mode of playing the gain description, to the source file processing of modifying, but do not revise the data division of audio file, do not damage audio file, obtain establishing the audio file of yield value, play for the user.Playing process during the above-mentioned sampling of mentioning, can be to carry out when the user plays this audio file first, also can be processed by shifting to an earlier date set-up mode.After yield value is arranged, in playing process, the track of broadcasting is multiplied by the adjusted track value of yield value, to regulate track value displaying audio file.
The audio file play method of the present embodiment, by calculating the yield value of audio file, and it is write to the gain option in attribute information, automatically regulate broadcast sound volume according to this yield value again, when the player that utilizes player method of the present invention carries out displaying audio file, each audio file is all play with identical volume, makes the user when displaying audio file, without frequently switching back and forth volume, realize that volume regulates automatically.
Based on above-mentioned audio file play method, the present invention also provides a kind of and its audio file Play System one to one.
Shown in figure 4, the structural representation of the audio file Play System that Fig. 4 is embodiment bis-mainly comprises:
Audio file read module 401, for reading the audio file of not establishing gain to be played, wherein, the gain option of described audio file attribute information does not arrange yield value;
Audio file sampling module 402, collected the sampled value of volume for the track to described audio file playing process;
Gain value computation module 403, for calculating the yield value of audio file according to described sampled value and preset target volume value;
Yield value writing module 405, in the gain option for the audio file attribute information that described yield value write to corresponding audio file;
Audio file read module 406, for when the displaying audio file, the track that corresponding audio file is play is multiplied by the adjusted track value of described yield value, and according to described adjusting track value displaying audio file.
As a kind of embodiment, described gain value computation module 403 can be further used for:
Utilize preset target volume value to adjudicate described sampled value, determine high-value, median and low-value in sampled value;
According to high-value, median and corresponding gain coefficient and the sampling number calculated gains value thereof of low-value difference, comprising:
M＝(α·Hn+β·Mn+γ·Ln)/(Hn+Mn+Ln)
In formula, M is yield value, and α is the gain coefficient that high-value is corresponding, and β is the gain coefficient that median is corresponding, and γ is gain coefficient corresponding to low-value, and Hn, Mn, Ln are respectively the sampling number of high-value, median and low-value.
In addition, described gain value computation module 403 also can be further used for:
Volume equilibrium value according to described sampled value and sampling number calculating audio file thereof comprises:
V
0＝(V
1+V
2+…+V
n)/n
In formula, V
0for the volume equilibrium value, n is sampling number, V
1, V
2..., V
nsampled value for reference numeral;
Calculate the yield value of audio file according to volume equilibrium value and preset target volume value, comprising:
M＝V
0/V
p
In formula, M is yield value, V
0for volume equilibrium value, V
pfor preset target volume value.
For more clear technical scheme of the present invention, below lift the application example of an audio file play method.
Shown in figure 5, the audio file play method process flow diagram that Fig. 5 is an application example, comprise the steps:
Step S501, read audio file to be played.
Step S502, judge in audio file whether yield value M arranged, if, enter step S503, if not, enter step S505.
Step S503, judge whether yield value M equals 1, if, enter step S504, if not, enter step S508.
Step S504, play-over audio file.
Step S505, sampled to the audio file of playing.
Step S506, calculated gains value M.
Step S507, write yield value M in audio file.
Step S508, read yield value M.
Step S509, calculate the track value according to yield value M, according to track value displaying audio file.
Based on above-described embodiment one. the audio file Play System in embodiment bis-, the invention provides a kind of player, can be for displaying audio file, it comprises the audio file Play System in embodiment mono-and/or embodiment bis-, by above-mentioned audio file Play System, player of the present invention, can be play each audio file with identical volume, realize that volume regulates automatically, improve volume adjusting efficiency, make the user when listening to music without frequently switching back and forth volume, the application that strengthens the user is experienced.
In addition, can also arrange in player and enable the switch of playing gain, when not needing to carry out volume adjusting, close this volume adjusting function, can select for the user provides flexibly, strengthen user's experience.
Audio file play-back technology of the present invention, without any electronic circuit is set, can realize the broadcasting of various intelligent terminals to audio file, automatically regulate the volume of playing, and be the volume gain value by the audio file attribute information, realize the automatic regulation function of displaying audio file, before audio file is play output, the audio file source read is added to the adjustment of gain, but do not make any change for audio frequency broadcast source file, and technology of the present invention, only the audio file that needs volume automatically to regulate is processed, with respect to processing mode after the output source of sound, can all not process the source of sound of all outputs, applied range, practicality is better, the application that more meets the user is experienced.
The above embodiment has only expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (10)
1. an audio file play method, is characterized in that, comprises the steps:
Read the audio file of establishing gain to be played, wherein, the gain option of described audio file attribute information has arranged yield value;
Detect the yield value of the gain option record in the audio file attribute information;
When yield value being detected and be not equal to 1, the track that corresponding audio file is play is multiplied by the adjusted track value of described yield value, and according to described adjusting track value displaying audio file.
2. audio file play method according to claim 1, is characterized in that, when yield value being detected and equal 1, according to current track value displaying audio file.
3. an audio file Play System, is characterized in that, comprising:
The audio file read module, for reading the audio file of establishing gain to be played, wherein, the gain option of described audio file attribute information has arranged yield value;
The yield value detection module, for detection of the yield value of the record of the gain option in the audio file attribute information;
The audio file playing module, for when yield value being detected and be not equal to 1, the track that corresponding audio file is play is multiplied by the adjusted track value of described yield value, and according to described adjusting track value displaying audio file.
4. audio file Play System according to claim 3, is characterized in that, also comprises the live module of audio file, for when yield value being detected and equal 1, according to current track value displaying audio file.
5. an audio file play method, is characterized in that, comprises the steps:
Read the audio file of not establishing gain to be played, wherein, the gain option of described audio file attribute information does not arrange yield value;
Track in described audio file playing process is collected to the sampled value of volume;
Calculate the yield value of audio file according to described sampled value and preset target volume value;
Described yield value is write in the gain option in the audio file attribute information of corresponding audio file;
When displaying audio file, the track that corresponding audio file is play is multiplied by the adjusted track value of described yield value, and according to described adjusting track value displaying audio file.
6. audio file play method according to claim 5, is characterized in that, the described step of calculating the yield value of audio file according to described sampled value and preset target volume value comprises:
Utilize preset target volume value to adjudicate described sampled value, determine high-value, median and low-value in sampled value;
According to high-value, median and corresponding gain coefficient and the sampling number calculated gains value thereof of low-value difference, comprising:
M＝(α·Hn+β·Mn+γ·Ln)/(Hn+Mn+Ln)
In formula, M is yield value, and α is the gain coefficient that high-value is corresponding, and β is the gain coefficient that median is corresponding, and γ is gain coefficient corresponding to low-value, and Hn, Mn, Ln are respectively the sampling number of high-value, median and low-value.
7. audio file play method according to claim 5, is characterized in that, the described step of calculating the yield value of audio file according to described sampled value and preset target volume value comprises:
Volume equilibrium value according to described sampled value and sampling number calculating audio file thereof comprises:
V
0＝(V
1+V
2+…+V
n)/n
In formula, V
0for the volume equilibrium value, n is sampling number, V
1, V
2..., V
nsampled value for reference numeral;
Calculate the yield value of audio file according to volume equilibrium value and preset target volume value, comprising:
M＝V
0/V
p
In formula, M is yield value, V
0for volume equilibrium value, V
pfor preset target volume value.
8. an audio file Play System, is characterized in that, comprising:
The audio file read module, for reading the audio file of not establishing gain to be played, wherein, the gain option of described audio file attribute information does not arrange yield value;
The audio file sampling module, collected the sampled value of volume for the track to described audio file playing process;
Gain value computation module, for calculating the yield value of audio file according to described sampled value and preset target volume value;
The yield value writing module, in the gain option for the audio file attribute information that described yield value write to corresponding audio file;
The audio file read module, for when the displaying audio file, the track that corresponding audio file is play is multiplied by the adjusted track value of described yield value, and according to described adjusting track value displaying audio file.
9. audio file Play System according to claim 8, is characterized in that, described gain value computation module is further used for:
Utilize preset target volume value to adjudicate described sampled value, determine high-value, median and low-value in sampled value;
According to high-value, median and corresponding gain coefficient and the sampling number calculated gains value thereof of low-value difference, comprising:
M＝(α·Hn+β·Mn+γ·Ln)/(Hn+Mn+Ln)
In formula, M is yield value, and α is the gain coefficient that high-value is corresponding, and β is the gain coefficient that median is corresponding, and γ is gain coefficient corresponding to low-value, and Hn, Mn, Ln are respectively the sampling number of high-value, median and low-value;
Or
Volume equilibrium value according to described sampled value and sampling number calculating audio file thereof comprises:
V
0＝(V
1+V
2+…+V
n)/n
In formula, V
0for the volume equilibrium value, n is sampling number, V
1, V
2..., V
nsampled value for reference numeral;
Calculate the yield value of audio file according to volume equilibrium value and preset target volume value, comprising:
M＝V
0/V
p
In formula, M is yield value, V
0for volume equilibrium value, V
pfor preset target volume value.
10. a player, is characterized in that, comprising: as claim 3 or 4,8 or 9 described audio file Play Systems.
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|---|---|---|---|
| CN201310430758.4A CN103489461B (en) | 2013-09-18 | 2013-09-18 | Audio file play method and system, player |
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| CN201310430758.4A CN103489461B (en) | 2013-09-18 | 2013-09-18 | Audio file play method and system, player |
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| CN103489461B CN103489461B (en) | 2016-03-16 |
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|---|---|
| CN103489461B (en) | 2016-03-16 |
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