CN100563099C - A kind of method and system of dynamically adjusting broadcast sound volume according to wavelength - Google Patents
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Abstract
The invention belongs to the voice data process field, relate in particular to a kind of method and system of dynamically adjusting broadcast sound volume according to wavelength.At present, when people play various audio file by audio frequency apparatus, all adopt the mode of constant volume to play, can better not embody song or music auditory effect of flowing rhythm when playing.System and method of the present invention, big or small corresponding with the wavelength of voice data and volume, by the detection of dynamic wavelength, calculate volume value according to wavelength, adjust the broadcast sound volume of audio frequency apparatus again, realize playing same voice data with different volumes, promptly when stress, play with big volume, when schwa, play with small volume, the heavy and light sound of voice data is play dynamically with the high bass of audio frequency apparatus, reach the effect that sound just rises and falls, increased user's recreation experience and auditory perception.
Description
Technical field
The invention belongs to the voice data process field, relate in particular to a kind of method and system of dynamically adjusting broadcast sound volume according to wavelength.
Background technology
The fast development of society day by day improves people's living standard, also therefore makes people more and more to the demand of music.The audio file of a lot of forms has appearred in the particularly continuous progress and the application of computer networking technology, and it is very general to utilize computer to play the audio file of various forms, and people have the more opportunity contact and appreciate music from various file formats.
When playing various types of audio file by audio frequency apparatus at present, usually all use fixing volume to play, for example when the user wishes to appreciate certain first song or music, usually all to select good volume for song or music that needs are play, whole then first song or music all adopt same volume to play in playing process, though such operation is simple, can better not embody song or music auditory effect of flowing rhythm when playing.
Summary of the invention
In order to overcome the defective of prior art, the purpose of this invention is to provide a kind of method of dynamically adjusting broadcast sound volume according to wavelength, by this method can be with the wavelength of voice data and volume big or small corresponding, by the detection of dynamic wavelength, calculate volume value according to wavelength, adjust the broadcast sound volume of audio frequency apparatus again, realize playing same voice data with different volumes, promptly when stress, play with big volume, when schwa, play with small volume, the high/low sound of all audio frequency apparatuses of weight/schwa of voice data is play dynamically, realized the effect that sound just rises and falls.
Another object of the present invention provides a kind of system that dynamically adjusts broadcast sound volume according to wavelength, by this system can be with the wavelength of voice data and volume big or small corresponding, by the detection of dynamic wavelength, calculate volume value according to wavelength, adjust the broadcast sound volume of audio frequency apparatus again, realize playing same voice data with different volumes, promptly when stress, play with big volume, when schwa, play with small volume, weight/the schwa of voice data is play dynamically with the high/low sound of audio frequency apparatus, realized the effect that sound just rises and falls.
In order to realize the foregoing invention purpose, the technical solution used in the present invention is:
A kind ofly dynamically adjust the method for broadcast sound volume, comprise the steps: according to wavelength
(1) reads in the voice data that needs broadcast, obtain the maximum wavelength and the minimum wavelength of this voice data, thereby obtain the range of wavelengths of this voice data;
(2) the volume interval that this voice data need be play is set, determines the max volume and the minimal volume of this voice data;
(3) range of wavelengths of determining in the step (1) is distributed to the volume interval of determining in the step (2), makes the corresponding maximum wavelength of max volume, the corresponding minimum wavelength of minimal volume;
(4) when voice data begins to play, the arbitrary wavelength constantly of playing of this voice data of detection of dynamic, the corresponding relation according to wavelength of setting in the step (3) and volume calculates this broadcast pairing volume of wavelength constantly then;
(5) the concrete volume value that obtains according to step (4) is adjusted the volume of audio frequency apparatus automatically;
(6) audio frequency apparatus is play voice data according to adjusted volume, finishes up to this voice data, and processing finishes;
Voice data described in the present invention is the audio file from .MP3 .MP2 .OGG .APE .WAV .WMA .AVI .RM .RMVB .ASF .MPEG .DAT or other form;
Further, obtain better invention effect, obtain the range of wavelengths of voice data in the step (1) by automatic detection or manual method to set up for making the present invention;
Further, voice data is disposable when all reading in, and adopts the mode that detects automatically to obtain the range of wavelengths of this voice data;
Further, when voice data reads in more than at twice, adopt the mode that manually is provided with to obtain the range of wavelengths of this voice data, further again, when the range of wavelengths of voice data manually is set, when if manually the actual wavelength of range of wavelengths that is provided with and voice data interval is incomplete same, step (4) if in the wavelength that dynamically detects when being greater than or equal to the wavelength maximum of manual setting, then the volume of this wavelength correspondence that dynamically detects is set to the interval maximum of volume that is provided with in the step (2); Step (4) if in the wavelength that dynamically detects when being less than or equal to the wavelength minimum (X-of manual setting, then the volume of this wavelength correspondence that dynamically detects is set to the interval minimum value of volume that is provided with in the step (2).
Further, for making the present invention obtain better invention effect, the interval volume interval of supporting for audio frequency apparatus of volume described in the step (2), the max volume that is the volume interval is less than or equal to the max volume that audio frequency apparatus is supported, the minimal volume in volume interval is greater than or equal to the minimal volume that audio frequency apparatus is supported;
Further, the interval volume intermediate value ± 30dB of described volume for the audio frequency apparatus support; Further again, the interval volume intermediate value ± 10dB of described volume for the audio frequency apparatus support;
Further, obtain better invention effect, when adjusting the volume of audio frequency apparatus automatically according to volume value in the step (5), can adjust a sound channel in the audio frequency apparatus, part sound channel or whole volume values of sound channels automatically according to concrete volume value for making the present invention.
A kind of system that dynamically adjusts broadcast sound volume according to wavelength, this system comprises: file analysis module, parameter are provided with module, wavelength detection module, volume computing module, Audio Control Module, audio playing module, audio frequency apparatus, wherein, audio frequency apparatus is connected with Audio Control Module, audio playing module respectively;
Described file analysis module is used for the form of voice data is analyzed, and can detect or support manually to be provided with the maximum wavelength and the minimum wavelength of voice data automatically, thereby obtains the range of wavelengths of this voice data;
Described parameter is provided with module and is used to be provided with the volume interval, determines max volume and minimal volume; And range of wavelengths is distributed to the volume interval, makes the corresponding maximum wavelength of max volume, the corresponding minimum wavelength of minimal volume, the corresponding big volume of promptly big wavelength, the corresponding small volume of small wavelength;
Described wavelength detection module is used for each broadcast wavelength constantly of detection of dynamic voice data, uses for the volume computing module;
Described volume computing module is provided with the wavelength of module settings and the corresponding relation of volume with the detected wavelength of wavelength detection module according to parameter, calculates the concrete volume of this wavelength correspondence;
The concrete volume value that described Audio Control Module obtains after calculating according to the volume computing module is adjusted the volume of audio frequency apparatus automatically;
Described audio playing module is called the adjusted volume of audio frequency apparatus and is play;
Further, the concrete volume value that described Audio Control Module obtains after calculating according to the volume computing module can be adjusted a sound channel, part sound channel of audio frequency apparatus or whole volume values of sound channels automatically.
Effect of the present invention is: adopt method and system of the present invention, and the range of wavelengths of voice data is corresponding with the volume interval of broadcast; When a certain moment is play the voice data of a certain wavelength, calculate the volume value of this wavelength correspondence earlier, dynamically adjust the volume of audio frequency apparatus then, carry out the broadcast of voice data, thereby realized that long wave shape uses big volume to play, shortwave shape is play with small volume, and the length of waveform and the size of volume are mapped one by one, better embody voice data effect of flowing rhythm in playing process, increased user's recreation experience and auditory perception.
Description of drawings
Fig. 1 is the structural representation of system of the present invention;
Fig. 2 is the schematic flow sheet of the method for the invention.
Embodiment
Further describe the present invention below in conjunction with Figure of description and specific embodiment.
Embodiment 1
In the present embodiment, the voice data of required broadcast is the audio file of .WAV form, and in fact audio file formats has multiplely, and the audio file of any form all can.
When adopting the method for dynamically adjusting broadcast sound volume according to wavelength of the present invention that voice data is play, as shown in Figure 2, comprise the steps:
(1) reads in the voice data that needs broadcast, obtain the maximum wavelength and the minimum wavelength of this voice data, thereby obtain the range of wavelengths of this voice data;
In the present embodiment, disposable reading in needs playing audio-fequency data, and the maximum wavelength that obtains this voice data by the method for automatic detection is that 500mm and minimum wavelength are 10mm, thereby the range of wavelengths that obtains this voice data is 10-500mm;
(2) the volume interval that this voice data need be play is set, determines the max volume and the minimal volume of this voice data;
The size of volume is usually with unit decibel (dB) expression, and the volume that present embodiment sound intermediate frequency equipment can be supported is interval to be 20-300dB, and promptly the max volume that can support of audio frequency apparatus is 300dB, and the minimal volume that audio frequency apparatus can be supported is 20dB;
In the present embodiment, volume that this voice data need play is being set when interval, descant is very high in some voice data that need play, double bass is very low, the scope that the broadcast scope in volume interval and audio frequency apparatus can be supported is complete when corresponding, can cause the too high and low sound of high pitch too low, thereby the sense of hearing that influences people is experienced, therefore the volume interval is set in the present embodiment: volume intermediate value ± 10dB that audio frequency apparatus is supported, promptly (20+300)/2 ± 10dB also is the interval 150-170dB of being of volume; The volume intermediate value is meant: (minimal volume of max volume+audio frequency apparatus support that audio frequency apparatus is supported)/2, and the impression of different certainly user's possibility sense of hearings is different, and the user can be provided with the volume interval according to the demand of oneself;
(3) range of wavelengths of determining in the step (1) is distributed to the volume interval of determining in the step (2), makes the corresponding maximum wavelength of max volume, the corresponding minimum wavelength of minimal volume;
In the present embodiment, among the volume interval 150-170dB that the range of wavelengths 10mm-500mm mean allocation determined in the step (1) is determined in the step (2), make range of wavelengths and volume interval set up corresponding relation;
(4) when voice data begins to play, the arbitrary wavelength constantly of playing of this voice data of detection of dynamic, the corresponding relation according to wavelength of setting in the step (3) and volume calculates this broadcast pairing volume of wavelength constantly then;
In the present embodiment, after voice data begins to play, need the arbitrary wavelength constantly of playing of this voice data of detection of dynamic, and calculate each and play the pairing volume of wavelength constantly, the wavelength of 10s when (second) is that 300mm is an example playing constantly to dynamically detect, and calculating the pairing volume value of wavelength in this broadcast moment according to the corresponding relation of wavelength and volume is 162dB;
(5) the concrete volume value that obtains according to step (4) is adjusted the volume of audio frequency apparatus automatically;
In the present embodiment, according to the concrete volume value that step (4) obtains, adjusting audio frequency apparatus automatically is 162dB for the broadcast sound volume of 10s when (second) playing constantly;
Because there is polytype in audio frequency apparatus, the only support monophony that has, the support dual track that has (being commonly referred to L channel and R channel), the support triple-track that has or the quadraphony or more sound channel, when adjusting the volume value of audio frequency apparatus according to volume value, can only adjust a sound channel according to the type selecting of user's needs and audio frequency apparatus, also can select to adjust two sound channels, also can select to adjust the volume value of all sound channels; The audio frequency apparatus that adopts in the present embodiment is only supported a sound channel, and the volume value of therefore directly adjusting this sound channel gets final product;
(6) audio frequency apparatus is play voice data according to adjusted volume, all finishes up to this voice data, and processing finishes;
In the present embodiment, audio frequency apparatus with the volume of 162dB to being that the voice data of 10s when (second) play playing constantly; Obviously do not finish, need to continue repeating step 4 to step 6, up to finishing, in fact each that play at voice data constantly, all need repetition above-mentioned steps 4 to step 6, the corresponding constantly corresponding wavelength of different broadcasts, the corresponding corresponding volume of different wavelength, thereby realized that audio frequency apparatus plays with different volumes the voice data of different wave length, make user's sound when hearing high pitch higher, and sound is lower when hearing bass, and the user can better enjoy music auditory effect of flowing rhythm.
Embodiment 2
The fast development of computer networking technology and the extensive use of stream media technology, more people like by online music appreciating of computer network or song; This moment the online broadcast of user various forms audio file the time, voice data is not disposable usually to be read, but gradation is read, each part that only reads voice data, when therefore adopting method of the present invention to play, if when adopting the method for the automatic detection of wavelength, can only detect the range of wavelengths of the part voice data that reads, obviously the maximum wavelength of this part voice data and minimum wavelength are not fully corresponding with the maximum wavelength of whole voice data with minimum wavelength usually, in order to solve this kind situation, method support of the present invention manually is provided with range of wavelengths.
Present embodiment 2 difference from Example 1 are step (1) and step (4), in the present embodiment, the user is by the online appreciation of computer network, the voice data branch reads for 5 times, be that voice data is divided into 5 parts, obviously the range of wavelengths of each part voice data all can not correctly reflect the range of wavelengths of whole voice data, this moment the user can be as required or experience the range of wavelengths of this voice data manually is set, therefore, the user adopts the mode of manual setting to obtain range of wavelengths in the step (1), the range of wavelengths that the user manually is provided with is 50-400mm, but in fact the range of wavelengths of this voice data is 10-500mm, range of wavelengths and actual wavelength interval that the user is provided with are inconsistent, both scopes exist intersects, therefore step (4) if in when detected wavelength is greater than or equal to the wavelength maximum 400mm of manual setting during the detection of dynamic wavelength, then the volume of this wavelength correspondence that dynamically detects is set to the interval maximum of volume that is provided with in the step (2); When if the wavelength that dynamically detects is less than or equal to the wavelength minimum (X-50mm of manual setting, then the volume of this wavelength correspondence that dynamically detects is set to the interval minimum value of volume of setting in the step (2); Because the auditory perception difference of different user, so manually being provided with of voice data range of wavelengths can repeatedly carry out, till the user is satisfied.
Embodiment 3
In the present embodiment, with the voice data of playing one section .AVI form is example, when adopting the system that dynamically adjusts broadcast sound volume according to wavelength of the present invention that this voice data is play, as shown in Figure 1, this system comprises: file analysis module 11, parameter are provided with module 12, wavelength detection module 13, volume computing module 14, Audio Control Module 15, audio playing module 17, audio frequency apparatus 15, wherein, audio frequency apparatus 15 is connected with Audio Control Module 16, audio playing module 17 respectively;
When said system is worked, at first analyze by the form of 11 pairs of these voice datas of file analysis module, the maximum wavelength that obtains this voice data by automatic detection is that 500mm and minimum wavelength are 10mm, thereby the range of wavelengths that obtains this voice data is that also this information is passed to parameter is provided with module to 10-500mm; Certainly, in the actual mechanical process, this document analysis module also supports to be provided with manually the maximum wavelength and the minimum wavelength of voice data;
Parameter is provided with module 12 the volume interval is set, and determines that max volume is that 170dB and minimal volume are 150dB, and promptly the volume interval is 150-170dB; And the range of wavelengths 10-500mm that the file analysis module is determined is distributed to the interval 150-170dB of volume, makes the corresponding maximum wavelength of max volume, the corresponding minimum wavelength of minimal volume, the corresponding big volume of promptly big wavelength, the corresponding small volume of small wavelength;
Each of wavelength detection module 13 detection of dynamic voice datas play wavelength constantly, uses for the volume computing module; For example wavelength detection module 13 dynamically detects that the wavelength of 10s when (second) is 300mm playing constantly;
The concrete volume value that Audio Control Module 16 obtains after calculating according to volume computing module 14 can be adjusted a sound channel, part sound channel of audio frequency apparatus 15 or whole volume values of sound channels automatically; Playing the concrete volume value 162dB that obtains after 10s calculated when (second) constantly as Audio Control Module 16 according to volume computing module 14, the volume value that can adjust a sound channel, part sound channel or whole sound channels of audio frequency apparatus 15 automatically is 162dB;
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.
Claims (11)
1, a kind ofly dynamically adjusts the method for broadcast sound volume, comprise the steps: according to wavelength
(1) reads in the voice data that needs broadcast, obtain the maximum wavelength and the minimum wavelength of this voice data, thereby obtain the range of wavelengths of this voice data;
(2) the volume interval that this voice data need be play is set, determines the max volume and the minimal volume of this voice data;
(3) range of wavelengths of determining in the step (1) is distributed to the volume interval of determining in the step (2), makes the corresponding maximum wavelength of max volume, the corresponding minimum wavelength of minimal volume;
(4) when voice data begins to play, the arbitrary wavelength constantly of playing of this voice data of detection of dynamic, the corresponding relation according to wavelength of setting in the step (3) and volume calculates this broadcast pairing volume of wavelength constantly then;
(5) the concrete volume value that obtains according to step (4) is adjusted the volume of audio frequency apparatus automatically;
(6) audio frequency apparatus is play voice data according to adjusted volume, finishes up to this voice data, and processing finishes.
2, as claimed in claim 1ly a kind ofly dynamically adjust the method for broadcast sound volume, it is characterized in that according to wavelength: in the step (1) by automatic detection or manually method to set up obtain the range of wavelengths of voice data.
3, as claimed in claim 2ly a kind ofly dynamically adjust the method for broadcast sound volume according to wavelength, it is characterized in that: voice data is disposable when all reading in, and adopts the mode that detects automatically to obtain the range of wavelengths of this voice data.
4, as claimed in claim 2ly a kind ofly dynamically adjust the method for broadcast sound volume, it is characterized in that: when voice data reads in more than at twice, adopt the mode that manually is provided with to obtain the range of wavelengths of this voice data according to wavelength.
5, as claim 2 or 4 described a kind of methods of dynamically adjusting broadcast sound volume according to wavelength, it is characterized in that: when the range of wavelengths of voice data manually is set, when if manually the actual wavelength of range of wavelengths that is provided with and voice data interval is incomplete same, step (4) if in the wavelength that dynamically detects when being greater than or equal to the wavelength maximum of manual setting, then the volume of this wavelength correspondence that dynamically detects is set to the interval maximum of volume that is provided with in the step (2); Step (4) if in the wavelength that dynamically detects when being less than or equal to the wavelength minimum (X-of manual setting, then the volume of this wavelength correspondence that dynamically detects is set to the interval minimum value of volume that is provided with in the step (2).
6, a kind of method of dynamically adjusting broadcast sound volume according to wavelength as claimed in claim 1, it is characterized in that: the interval volume interval of supporting for audio frequency apparatus of the volume described in the step (2), the max volume that is the volume interval is less than or equal to the max volume that audio frequency apparatus is supported, the minimal volume in volume interval is greater than or equal to the minimal volume that audio frequency apparatus is supported.
7, as claimed in claim 6ly a kind ofly dynamically adjust the method for broadcast sound volume, it is characterized in that: the interval volume intermediate value ± 30dB of described volume for the audio frequency apparatus support according to wavelength.
8, as claimed in claim 7ly a kind ofly dynamically adjust the method for broadcast sound volume, it is characterized in that: the interval volume intermediate value ± 10dB of described volume for the audio frequency apparatus support according to wavelength.
9, a kind of method of dynamically adjusting broadcast sound volume according to wavelength as claimed in claim 1, it is characterized in that: when adjusting the volume of audio frequency apparatus automatically according to volume value in the step (5), can adjust a sound channel in the audio frequency apparatus, part sound channel or whole volume values of sound channels automatically according to concrete volume value.
10, a kind of system that dynamically adjusts broadcast sound volume according to wavelength, this system comprises: file analysis module, parameter are provided with module, wavelength detection module, volume computing module, Audio Control Module, audio playing module, audio frequency apparatus, wherein, audio frequency apparatus is connected with Audio Control Module, audio playing module respectively;
Described file analysis module is used for the form of voice data is analyzed, and can detect or support manually to be provided with the maximum wavelength and the minimum wavelength of voice data automatically, thereby obtains the range of wavelengths of this voice data;
Described parameter is provided with module and is used to be provided with the volume interval, determines max volume and minimal volume; And range of wavelengths is distributed to the volume interval, makes the corresponding maximum wavelength of max volume, the corresponding minimum wavelength of minimal volume, the corresponding big volume of promptly big wavelength, the corresponding small volume of small wavelength;
Described wavelength detection module is used for each broadcast wavelength constantly of detection of dynamic voice data, uses for the volume computing module;
Described volume computing module is provided with the wavelength of module settings and the corresponding relation of volume with the detected wavelength of wavelength detection module according to parameter, calculates the concrete volume of this wavelength correspondence;
The concrete volume value that described Audio Control Module obtains after calculating according to the volume computing module is adjusted the volume of audio frequency apparatus automatically;
Described audio playing module is called the adjusted volume of audio frequency apparatus and is play.
11, a kind of system that dynamically adjusts broadcast sound volume according to wavelength as claimed in claim 10, it is characterized in that: the concrete volume value that described Audio Control Module obtains after calculating according to the volume computing module, can adjust a sound channel, part sound channel of audio frequency apparatus or whole volume values of sound channels automatically.
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| US20050100173A1 (en) * | 2003-11-07 | 2005-05-12 | Eid Bradley F. | Automotive audio controller with vibration sensor |
| CN1972120A (en) * | 2006-11-29 | 2007-05-30 | 北京中星微电子有限公司 | A method and device for implementing adjustment of volume based on environmental noise detection |
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| US20050100173A1 (en) * | 2003-11-07 | 2005-05-12 | Eid Bradley F. | Automotive audio controller with vibration sensor |
| CN1972120A (en) * | 2006-11-29 | 2007-05-30 | 北京中星微电子有限公司 | A method and device for implementing adjustment of volume based on environmental noise detection |
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