CN104023296A - Sound output method and device and mobile terminal - Google Patents
Sound output method and device and mobile terminal Download PDFInfo
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- CN104023296A CN104023296A CN201410275636.7A CN201410275636A CN104023296A CN 104023296 A CN104023296 A CN 104023296A CN 201410275636 A CN201410275636 A CN 201410275636A CN 104023296 A CN104023296 A CN 104023296A
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Abstract
The invention discloses a sound output method and device and a mobile terminal. The sound output method comprises the steps that sound signals are divided into at least two parts of sound signals at different frequency ranges; the two parts of sound signals are correspondingly output through at least two vibration diaphragms respectively. According to the sound output method, the sound signals are divided into two or three or more parts of sound signals at different frequency ranges at first, and then the two or three or more parts of sound signals are output through the double-vibration-diaphragm structure or the three-vibration-diaphragm structure or the multi-vibration-diaphragm structure respectively, so that sounds are restored more realistically. According to the sound output method and device and the mobile terminal, the sound output effect is improved, and the user experience is improved.
Description
Technical field
The present invention relates to communication technical field, especially relate to a kind of method of outputting acoustic sound and device and mobile terminal.
Background technology
Terminal equipment, when playing the media files such as music, video, recording, all needs voice output to sound as loudspeaker, loud speaker etc., and the quality of voice output effect depends on voice output, particularly the vibrating diaphragm of voice output.The effect of some vibrating diaphragm output basses is better, and the effect of some vibrating diaphragm output high pitchs is better, and a voice output only has a vibrating diaphragm, and the voice output therefore having is only suitable for playing bass, and some voice outputs are only suitable for playing bass.But the frequency range of an audio file is conventionally wider, generally include senior middle school's bass.Therefore, the voice signal of reductase 12 0～20KHz frequency range that existing voice output cannot be true to nature, voice output effect is not ideal enough.
Summary of the invention
Main purpose of the present invention is to provide a kind of method of outputting acoustic sound and device and mobile terminal, is intended to improve the output effect of sound, promotes user and experiences.
To achieve these objectives, the present invention proposes a kind of method of outputting acoustic sound, comprises step:
At least two parts voice signal that voice signal is divided into different frequency scope;
By at least two vibrating diaphragms, export respectively the voice signal of appropriate section.
Preferably, described at least two parts voice signal that voice signal is divided into different frequency scope comprises:
By two filter at least, respectively voice signal is carried out to filtering processing, each filter extracts respectively the part voice signal of corresponding frequencies scope, thereby described voice signal is divided into at least two parts voice signal of different frequency scope.
Preferably, described filter is two, be respectively high pass filter and low pass filter, described high pass filter extracts the HFS of described voice signal, described low pass filter extracts the low frequency part of described voice signal, thereby described voice signal is divided into HFS voice signal and low frequency part voice signal.
Preferably, described vibrating diaphragm is two, be respectively high-frequency diaphragm and low frequency vibrating diaphragm, the described voice signal of exporting respectively appropriate section by least two vibrating diaphragms comprises: by described high-frequency diaphragm and low frequency vibrating diaphragm, export respectively described HFS voice signal and low frequency part voice signal.
Preferably, described high pass filter extracts the part that described voice signal medium frequency is more than or equal to 1KHZ, and described low pass filter extracts the part that described voice signal medium frequency is less than 1KHZ.
The present invention proposes a kind of voice output simultaneously, comprises processing unit and phonation unit, and described phonation unit comprises at least two vibrating diaphragms, wherein:
Processing unit, for being divided into voice signal at least two parts voice signal of different frequency scope;
Phonation unit, for exporting respectively the voice signal of appropriate section by described at least two vibrating diaphragms.
Preferably, described processing unit comprises at least two filters, and described filter is used for: described voice signal is carried out to filtering processing, to extract the part voice signal of corresponding frequencies scope.
Preferably, described filter is two, comprise high pass filter and low pass filter, described high pass filter is for extracting the HFS of described voice signal, described low pass filter is used for extracting the low frequency part of described voice signal, thereby described voice signal is divided into HFS voice signal and low frequency part voice signal.
Preferably, described vibrating diaphragm is two, comprises high-frequency diaphragm and low frequency vibrating diaphragm, and described phonation unit is used for: by described high-frequency diaphragm and low frequency vibrating diaphragm, export respectively described HFS voice signal and low frequency part voice signal.
The present invention also proposes a kind of mobile terminal, comprises voice output, and this voice output comprises processing unit and phonation unit, and described phonation unit comprises at least two vibrating diaphragms, wherein:
Processing unit, for being divided into voice signal at least two parts voice signal of different frequency scope;
Phonation unit, for exporting respectively the voice signal of appropriate section by described at least two vibrating diaphragms.
A kind of method of outputting acoustic sound provided by the present invention, first the two parts, three parts that voice signal are divided into different frequency scope are many parts even, then utilize double diaphragm, the even many diaphragm structures of three vibrating diaphragms, adopt respectively suitable vibrating diaphragm to be exported each several part voice signal, make sound be able to restore more realistically.Improve voice output effect, promoted user's experience.
Accompanying drawing explanation
Fig. 1 is the flow chart of method of outputting acoustic sound one embodiment of the present invention;
Fig. 2 is the structured flowchart of voice output one embodiment of the present invention;
Fig. 3 is the circuit diagram of high pass filter one example in the present invention;
Fig. 4 is the circuit diagram of low pass filter one example in the present invention.
The realization of the object of the invention, functional characteristics and advantage, in connection with embodiment, are described further with reference to accompanying drawing.
Embodiment
Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
Referring to Fig. 1, method of outputting acoustic sound one embodiment of the present invention is proposed, described method of outputting acoustic sound comprises the following steps:
Step S101: voice signal is carried out to filtering processing, voice signal is divided into at least two parts voice signal of different frequency scope
Concrete, voice output (as loudspeaker or loud speaker) comprises at least two filters, voice signal is sent to respectively each filter after entering voice output, each filter carries out filtering processing to voice signal respectively, each filter extracts the part voice signal of corresponding frequencies scope from voice signal, thereby voice signal is divided into at least two parts voice signal of different frequency scope.
For example, filter comprises high pass filter and low pass filter.High pass filter carries out filtering processing to voice signal, and the low frequency part in filtering sound signal retains the HFS in voice signal; Low pass filter carries out filtering processing to voice signal, and the HFS in filtering sound signal retains the low frequency part in voice signal; Thereby voice signal is divided into high and low frequency two parts voice signal.Wherein, the boundary threshold value of high and low frequency can self-definedly arrange, as threshold value is set is 1KHZ, and high pass filter extracts the part that voice signal medium frequency is more than or equal to 1KHZ, and low pass filter extracts the part that voice signal medium frequency is less than 1KHZ.
And for example, filter comprises first, second, and third filter, wherein the first filter extracts the part that voice signal medium frequency is less than first frequency threshold value, the second filter extracts the part of voice signal medium frequency between first frequency threshold value and second frequency threshold value, the 3rd filter extracts the part that is greater than second frequency threshold value in voice signal, thereby voice signal is divided into low frequency, intermediate frequency, high frequency three part voice signals.Wherein, first frequency threshold value and second frequency threshold value can self-definedly arrange, as first frequency threshold value is set is 500HZ, and second frequency threshold value is 12KHZ.
The rest may be inferred, can also adopt more filter further to segment the frequency range of voice signal, at this, will not enumerate.
Except utilizing filter to carry out frequency division voice signal, also can utilize alternate manner of the prior art voice signal to be divided into at least two parts voice signal of different frequency scope, do not repeat them here.
Step S102: the voice signal of exporting respectively appropriate section by least two vibrating diaphragms
Wherein, the material of each vibrating diaphragm is different, the voice signal of corresponding applicable output different frequency scope.For example, the vibrating diaphragm that adopts the materials such as strengthening cone, glass fibre to make is suitable as low frequency vibrating diaphragm, for output low frequency part voice signal; The vibrating diaphragm that adopts the flexible materials such as cone and thin,tough silk film to make is suitable as intermediate frequency vibrating diaphragm, for exporting intermediate-frequency section voice signal; The vibrating diaphragm that adopts wood materials to make is suitable as high-frequency diaphragm, for exporting HFS voice signal.Can also to low frequency, intermediate frequency, high-frequency diaphragm, further segment respectively, to be applicable to more accurately the voice signal of different frequency scope.
Thereby, method of outputting acoustic sound of the present invention, first the two parts, three parts that voice signal are divided into different frequency scope are many parts even, then utilize double diaphragm, the even many diaphragm structures of three vibrating diaphragms, adopt respectively suitable vibrating diaphragm to be exported each several part voice signal simultaneously, make sound be able to restore more realistically.Improve voice output effect, promoted user's experience.
Referring to Fig. 2, voice output one embodiment of the present invention is proposed, described voice output is as loudspeaker or loud speaker, and it comprises processing unit and phonation unit, and wherein processing unit comprises at least two filter, and phonation unit comprises at least two vibrating diaphragms.
Processing unit: for voice signal is carried out to filtering processing, voice signal is divided into at least two parts voice signal of different frequency scope.
Concrete, processing unit is sent to respectively each filter by voice signal, each filter carries out filtering processing to voice signal respectively, each filter extracts the part voice signal of corresponding frequencies scope from voice signal, thereby voice signal is divided into at least two parts voice signal of different frequency scope.
For example, filter comprises high pass filter and low pass filter, and wherein the circuit diagram of high pass filter can be as shown in Figure 3, and the circuit diagram of low pass filter can as shown in Figure 4, because Fig. 3, Fig. 4 are traditional filter circuit figure, not repeat them here.High pass filter carries out filtering processing to voice signal, and the low frequency part in filtering sound signal retains the HFS in voice signal; Low pass filter carries out filtering processing to voice signal, and the HFS in filtering sound signal retains the low frequency part in voice signal; Thereby voice signal is divided into high and low frequency two parts voice signal.Wherein, the boundary threshold value of high and low frequency can self-definedly arrange, as threshold value is set is 1KHZ, and high pass filter extracts the part that voice signal medium frequency is more than or equal to 1KHZ, and low pass filter extracts the part that voice signal medium frequency is less than 1KHZ.
And for example, filter comprises first, second, and third filter, wherein the first filter extracts the part that voice signal medium frequency is less than first frequency threshold value, the second filter extracts the part of voice signal medium frequency between first frequency threshold value and second frequency threshold value, the 3rd filter extracts the part that is greater than second frequency threshold value in voice signal, thereby voice signal is divided into low frequency, intermediate frequency, high frequency three part voice signals.Wherein, first frequency threshold value and second frequency threshold value can self-definedly arrange, as first frequency threshold value is set is 500HZ, and second frequency threshold value is 12KHZ.
The rest may be inferred, can also adopt more filter further to segment the frequency range of voice signal, at this, will not enumerate.
Phonation unit: for export respectively the voice signal of appropriate section by least two vibrating diaphragms.
Concrete, phonation unit receives the each several part voice signal after processing unit processes, is equipped with suitable vibrating diaphragm output each several part voice signal, carries out sounding.Wherein, the material of each vibrating diaphragm is different, the voice signal of corresponding applicable output different frequency scope.For example, the vibrating diaphragm that adopts the materials such as strengthening cone, glass fibre to make is suitable as low frequency vibrating diaphragm, for output low frequency part voice signal; The vibrating diaphragm that adopts the flexible materials such as cone and thin,tough silk film to make is suitable as intermediate frequency vibrating diaphragm, for exporting intermediate-frequency section voice signal; The vibrating diaphragm that adopts wood materials to make is suitable as high-frequency diaphragm, for exporting HFS voice signal.Can also to low frequency, intermediate frequency, high-frequency diaphragm, further segment respectively, to be applicable to more accurately the voice signal of different frequency scope.
In addition, processing unit, except utilizing filter to carry out frequency division voice signal, also can utilize alternate manner of the prior art voice signal to be divided into at least two parts voice signal of different frequency scope, does not repeat them here.
Thereby, voice output of the present invention, adopts double diaphragm, the even many diaphragm structures of three vibrating diaphragms, and two parts, three parts that voice signal is divided into different frequency scope are many parts even, each several part adopts respectively suitable vibrating diaphragm to be exported, and makes sound be able to restore more realistically.Improve voice output effect, promoted user's experience.
It should be noted that, the technical characterictic in said method embodiment is all corresponding applicable at this device, no longer repeats here.
The present invention proposes a kind of mobile terminal simultaneously, it comprises voice output, described voice output comprises processing unit and phonation unit, described phonation unit comprises at least two vibrating diaphragms, wherein: processing unit, for voice signal being divided into at least two parts voice signal of different frequency scope; Phonation unit, for exporting respectively the voice signal of appropriate section by described at least two vibrating diaphragms.Voice output described in the present embodiment is the related voice output of above-described embodiment in the present invention, does not repeat them here.
Mobile terminal of the present invention, employing has the voice output of double diaphragm, the even many diaphragm structures of three vibrating diaphragms, two parts, three parts that voice signal is divided into different frequency scope are many parts even, each several part adopts respectively suitable vibrating diaphragm to be exported, and makes sound be able to restore more realistically.Improve voice output effect, promoted user's experience.
It should be noted that: the voice output that above-described embodiment provides is when carrying out voice output, only the division with above-mentioned each functional module is illustrated, in practical application, can above-mentioned functions be distributed and by different functional modules, completed as required, the internal structure that is about to mobile terminal is divided into different functional modules, to complete all or part of function described above.In addition, the voice output that above-described embodiment provides and method of outputting acoustic sound embodiment belong to same design, and its specific implementation process refers to embodiment of the method, repeats no more here.
One of ordinary skill in the art will appreciate that, realizing all or part of step in above-described embodiment method can control relevant hardware by program and complete, described program can be stored in a computer read/write memory medium, and described storage medium can be ROM/RAM, disk, CD etc.
Should be understood that; these are only the preferred embodiments of the present invention; can not therefore limit the scope of the claims of the present invention; every equivalent structure or conversion of equivalent flow process that utilizes specification of the present invention and accompanying drawing content to do; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (10)
1. a method of outputting acoustic sound, is characterized in that, comprises step:
At least two parts voice signal that voice signal is divided into different frequency scope;
By at least two vibrating diaphragms, export respectively the voice signal of appropriate section.
2. method of outputting acoustic sound according to claim 1, is characterized in that, described at least two parts voice signal that voice signal is divided into different frequency scope comprises:
By two filter at least, respectively voice signal is carried out to filtering processing, each filter extracts respectively the part voice signal of corresponding frequencies scope, thereby described voice signal is divided into at least two parts voice signal of different frequency scope.
3. method of outputting acoustic sound according to claim 2, it is characterized in that, described filter is two, be respectively high pass filter and low pass filter, described high pass filter extracts the HFS of described voice signal, described low pass filter extracts the low frequency part of described voice signal, thereby described voice signal is divided into HFS voice signal and low frequency part voice signal.
4. method of outputting acoustic sound according to claim 3, it is characterized in that, described vibrating diaphragm is two, be respectively high-frequency diaphragm and low frequency vibrating diaphragm, the described voice signal of exporting respectively appropriate section by least two vibrating diaphragms comprises: by described high-frequency diaphragm and low frequency vibrating diaphragm, export respectively described HFS voice signal and low frequency part voice signal.
5. according to the method for outputting acoustic sound described in claim 2 or 3, it is characterized in that, described high pass filter extracts the part that described voice signal medium frequency is more than or equal to 1KHZ, and described low pass filter extracts the part that described voice signal medium frequency is less than 1KHZ.
6. a voice output, is characterized in that, comprises processing unit and phonation unit, and described phonation unit comprises at least two vibrating diaphragms, wherein:
Processing unit, for being divided into voice signal at least two parts voice signal of different frequency scope;
Phonation unit, for exporting respectively the voice signal of appropriate section by described at least two vibrating diaphragms.
7. voice output according to claim 6, is characterized in that, described processing unit comprises at least two filters, and described filter is used for: described voice signal is carried out to filtering processing, to extract the part voice signal of corresponding frequencies scope.
8. voice output according to claim 7, it is characterized in that, described filter is two, comprise high pass filter and low pass filter, described high pass filter is for extracting the HFS of described voice signal, described low pass filter is used for extracting the low frequency part of described voice signal, thereby described voice signal is divided into HFS voice signal and low frequency part voice signal.
9. voice output according to claim 8, it is characterized in that, described vibrating diaphragm is two, comprises high-frequency diaphragm and low frequency vibrating diaphragm, and described phonation unit is used for: by described high-frequency diaphragm and low frequency vibrating diaphragm, export respectively described HFS voice signal and low frequency part voice signal.
10. a mobile terminal, is characterized in that, comprises the voice output as described in claim 6-9 any one.
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| CN201410275636.7A CN104023296A (en) | 2014-06-19 | 2014-06-19 | Sound output method and device and mobile terminal |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105554548A (en) * | 2015-12-08 | 2016-05-04 | 深圳Tcl数字技术有限公司 | Audio data output method and device |
| CN107071669A (en) * | 2017-05-26 | 2017-08-18 | 维沃移动通信有限公司 | A kind of loudspeaker earpiece and mobile terminal |
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| DE3302394A1 (en) * | 1982-01-26 | 1983-08-11 | Osakeyhtiö Lohja AB, 08700 Virkkala | Loudspeaker |
| CN2540335Y (en) * | 2002-05-27 | 2003-03-19 | 林欧煌 | Integral microphone and earphone for preventing having whistler and echo |
| CN1751536A (en) * | 2003-01-09 | 2006-03-22 | 波士顿声学公司 | Audio speaker crossover having two or more filter housings |
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Address after: A District No. 9018 Han innovation building in Nanshan District high tech Zone in Shenzhen city of Guangdong Province, North Central Avenue, 518000 floor 10 Applicant after: Nubian Technologies Ltd. Address before: A District No. 9018 Han innovation building in Nanshan District high tech Zone in Shenzhen city of Guangdong Province, North Central Avenue, 518000 floor 10 Applicant before: Shenzhen ZTE Mobile Tech Co., Ltd. |
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Application publication date: 20140903 |