CN1393849A - Speech playing method for electronic device - Google Patents
Speech playing method for electronic device Download PDFInfo
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- CN1393849A CN1393849A CN01113244A CN01113244A CN1393849A CN 1393849 A CN1393849 A CN 1393849A CN 01113244 A CN01113244 A CN 01113244A CN 01113244 A CN01113244 A CN 01113244A CN 1393849 A CN1393849 A CN 1393849A
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- voice
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Abstract
The invention discloses the method for playing the voice file on the invented electronic device. When the voice file with standard format (such as MP3) being downloaded to the electronic device, the electronic device converts the voice file with standard format to the voice file with the compressed format defined by oneself. Then the compressed file is stored to the electronic device for playing back in future. Thus, based on the self-defined compressed format, the part of the unnecessary capacitance in the voice file can be deleted so as to reduce the encoding rate of the digital voice greatly. The invention reduces the capacitance of the voice file, saves the storage space of the electronic device, and meanwhile keeps the effect of playing original voice.
Description
Technical field
The present invention relates to the method for speech play on a kind of electronic installation, especially refer to a kind of compressed format that defines voluntarily by the present invention, get rid of the middle unnecessary capacity of part of voice document (as: music) of original standard format (as: MP3), significantly reduce the encoding rate of digital speech, reduce the capacity of voice document, save the storage space of this electronic installation, keep the effect of original speech play simultaneously.
Background technology
At so-called e now in the epoch in century, because information flow is quick, people to the demand of information with exchange more and more big, therefore, the electronic installation of the formula that much is easy to carry, for example: personal digital aid (PDA) (PersonalDigital Assistance is hereinafter to be referred as PDA), mobile phone (Mobile Phone) and digital camera (Digital Camera) etc.. just be widely used in all trades and professions, and become already many people live the custom in an indispensable part.
Generally speaking, all increased the function of playing back music now on these electronic installations.But, the form of these music files, be (the Motion PictureCoding Expert Group Audio Layer-3 of the audio-visual third generation of compression standard system that adopts international standards mostly, hereinafter to be referred as MP3) form, yet, the music file of this MP3 format shared storage area in these electronic installations is quite big, therefore, desire on these electronic installations, to play the music file of this MP3 format, then will need the storer of larger capacity to support, thus, to suitable big of the burden of Storage Media (that is: these electronic installations), with respect to storage space (Memory) expensive on the mobile phone, the amount of capacity that then is necessary very much to dwindle the MP3 archives.Therefore, this problem is that the design and the manufacturer of these electronic installations needs to be resolved hurrily and improved important topic in fact.
Summary of the invention
Because the voice document of aforementioned this MP3 format, storage space shared in these electronic installations is quite big, desire on these electronic installations, to play the voice document of this MP3 format, will need the storer of larger capacity to support, cause the shortcoming of the cost increase of these electronic installations.The inventor is practical experience and the research experience through for many years, develop the present invention, the present invention is promptly defining a kind of new voice compression format voluntarily, can be in order to play various voice documents (as: music), and reduce the encoding rate of digital speech, to reduce the size of archives, save storage space, can keep the effect of original speech play simultaneously again.
Fundamental purpose of the present invention, be to provide the method for speech play on a kind of electronic installation, by this compressed format that defines voluntarily, make electronic installation when downloading the voice document (as: music) of a standard format (as: MP3), the voice document of this standard format can be converted to the compressed format that this defines voluntarily, again it is stored to this electronic installation, and play, significantly to reduce the encoding rate of digital speech, effectively reduce the capacity of voice document, and then the storage space of saving this electronic installation, effectively solve when on traditional electronic devices, playing this MP3 song, need the shortcoming of the storer of larger capacity.
Description of drawings
For enabling to purpose of the present invention, shape constructing apparatus feature and effect thereof, make further understanding and understanding, for the embodiment conjunction with figs., be described in detail as follows now:
Fig. 1 is a system of the present invention block schematic diagram.
2 figure are the music of the present invention with the MP3 format of standard, convert the schematic flow sheet of the voice compression format of definition voluntarily to.
Fig. 3 plays the schematic flow sheet of the voice compression format of definition voluntarily for the present invention.
Embodiment
In recent years, the electronic installation of the formula that much is easy to carry (for example: PDA, mobile phone and digital camera etc..), all increased the function of broadcast voice document (as: music), but, the form of these voice documents all adopts the standard format of MP3, yet, the voice document of this MP3 standard format shared storage space in these electronic installations is quite big, therefore, desire on these electronic installations, to play the voice document of this MP3 standard format, support needing the storer of larger capacity, thus, to suitable big of the burden of Storage Media (that is: these electronic installations), therefore, be necessary to dwindle the amount of capacity of the voice document of MP3 standard format, play again.
The present invention promptly is according to this development trend, make electronic installation when downloading the voice document (as: music) of a standard format (as: MP3), can be by the compressed format of definition voluntarily set in this electronic installation, voice document with this standard format, convert the compressed format that this defines voluntarily earlier to, to be stored to this electronic installation through this voice document after the conversion again, and play by this electronic installation, so, the compressed format that defines voluntarily by the present invention, can get rid of the unnecessary capacity of part in the voice document of primary standard form, significantly reduce the encoding rate of digital speech, save the storage space of this electronic installation, can keep the effect of original speech play simultaneously again.
In the present invention, see also shown in Figure 1ly, on the electronic installation of this formula that is easy to carry, be respectively equipped with a storer 11, in order to the usefulness of storage data; Digital-to-analog signal converter 13 is in order to convert audio digital signals to the human acoustic pattern voice signal that can experience; Loudspeaker 14 are in order to play back the acoustic pattern voice signal; And central processing unit 12, in order to control this device main frame and aforementioned each interelement normal operation.
Moreover, by the voice document of known original standard compression form (as: MP3), be by following expression:
Frame()
{
header()；
audio_data()
ancillary_data()
}
Wherein this Frame () is a data transmission unit, that is: package is represented the content (because the voice document of MP3 standard format is according to the frame number that it comprised, playing one by one) of the compressed format of each frame (Frame) in the voice document; This header () is a frame head; The voice data of this audio_data () for being comprised in each frame (Frame), its content is relevant with the song content in this voice document; This ancillary_data () is an auxiliary data, and its content is also relevant with song content.
In the present invention, because the form of this audio_data () voice data, with the form of this ancillary_data () auxiliary data, identical with original standard compression form respectively (as: MP3), be to belong to known technology, therefore, the present invention will not give unnecessary details in detail at this.In known technology, can the content of this audio_data () voice data and ancillary_data () auxiliary data be encrypted, because this encryption method is not a patented claim emphasis of the present invention, so also will not give unnecessary details in detail at this.
Principal character of the present invention, be at this frame head form header () in the voice document of aforementioned known standard compressed format (as: MP3), adopt a voice compression format that defines voluntarily, data in this frame head form is divided into many fragments, make them different with original standard format, its concrete form is as follows:
header()
{
frame_mark：12bit
INC_copyright：1bit
voice_quality：6bit
stereo_select：2bit
padding：1bit
}
, this frame_mark:12bit wherein is to represent that each frame compression data accounts for 12 bits (bit) in this voice document; This INC_copyright:1bit is to represent its copyrighted data to account for 1 bit (bit); This voice_quality:6bit is to represent its tonequality data to account for 6 bits (bit); This stereo_select:2bit is that the stereo selection of representative accounts for 2 bits (bit); This padding:1bit is to represent its data to fill up to account for 1 bit (bit).
Below enumerate an embodiment now, at the control program in this electronic installation (that is: format conversion process), describe in detail, how to pass through following converse routine of the present invention, see also shown in Figure 2, with the voice document of the MP3 standard format downloaded, the conversion cost invention is the voice compression format of definition voluntarily:
(1) at first, the central processing unit 12 of this electronic installation is when downloading the voice document of this MP3 standard format, open this voice document earlier, it is carried out the initialization operation, with the frame head of discerning each frame compressed content in this voice document (because for the voice document of MP3 standard format, is according to its bit (bit), so before control program carries out, the bit (bit) that is comprised in the voice document of need to this MP3 standard format carries out the initialization operation.)；
(2) seek synchronization character (SYNCWORD), and judged whether to find synchronization character (this synchronization character means the frame_mark among the frame head header () in the present invention), if found synchronization character, then carry out synchronous processing by bit, and continuation the following step, if do not find synchronization character, then withdraw from this converse routine;
(3) judge again whether this voice document is the ISO138183 normative document, this ISO138183 normative document is (Motion Picture Expert Group in the Motion Picture Expert Group 2.5, abbreviation MPEG2.5) audio compress standard file, the employed specification of the voice document of MP3 standard format, promptly belong to this kind audio compress standard, if this ISO138183 normative document then continues the following step, if not this ISO138183 normative document then withdraws from this converse routine;
(4) again at the header () of each frame compressed content in the voice document of this MP3 standard format, resolve, remove useless bit, and the primary standard format conversion is the voice compression format (that is: the form among the aforementioned frame head header ()) that defines voluntarily;
(5) to the content of audio_data () voice data in each frame compressed content and ancillary_data () auxiliary data, encrypt;
(6) judge whether this voice document finishes conversion, if, then withdraw from this converse routine, if not, then continue step (2), seek the synchronization character in the next frame compressed content, up to whole voice document be converted finish till.
So, can be with the voice document of MP3 standard format, the conversion cost invention is the voice compression format of definition voluntarily, and it is stored in the storer 11 of this electronic installation.
In the present invention, if desire will convert the voice document of the compressed format of definition voluntarily to, when playing out in this electronic installation certainly, can be by following playing program (that is: format conversion process), see also shown in Figure 3ly,, handle the voice document of this compressed format that defines voluntarily:
(1) at first, the central processing unit 12 of this electronic installation will be opened the voice document of this stored compressed format that defines voluntarily earlier, and it is carried out the initialization operation, with the frame head (header) of discerning each frame compressed content in this voice document;
(2) seek synchronization character, and judge whether to have found synchronization character, if found synchronization character, then, carry out the synchronization operation, and continue the following step,, then withdraw from this playing program if do not find synchronization character according to the bit that it comprised;
(3) judge again whether this voice document is the voice compression format that defines voluntarily, if this voice compression format that defines voluntarily then continues the following step, if not this voice compression format that defines voluntarily then withdraws from this playing program;
(4) to the content of audio_data () voice data in each frame compressed content and ancillary_data () auxiliary data, be decrypted;
(5) data after will deciphering are imported this digital-to-analog signal converter 13, after audio digital signals being converted to the human acoustic pattern voice signal that can experience, play back by these loudspeaker 14 again;
(6) judge whether this voice document finishes, if, then withdraw from this playing program, if not, then continue step (2), seek the synchronization character in the next frame compressed content, until whole voice document be played finish till.
So, the compressed format that defines voluntarily by the present invention, can get rid of the unnecessary capacity of part in the voice document, significantly reduce the encoding rate of digital speech, reduce the capacity of voice document, the storage space of saving this electronic installation, the while can keep the effect of original speech play again, effectively solve traditional electronic devices when playing this MP3 voice document, need the shortcoming of larger capacity storer.
The above only is a best specific embodiment of the present invention.Feature of the present invention is not limited thereto, and anyly is familiar with present technique field person in field of the present invention, can think easily and variation or modification, all should be encompassed in the appended claim scope.
Claims (10)
1, the method for speech play on a kind of electronic installation, make electronic installation when downloading the voice document of a standard format, can be by the compressed format of definition voluntarily set in this electronic installation, voice document with this standard format, convert the compressed format that this defines voluntarily to, to get rid of the wherein unnecessary data of part, be stored to this electronic installation again, and play by this electronic installation.
2, the method for speech play on the electronic installation as claimed in claim 1, it is characterized in that, the voice compression format that this defines voluntarily, frame head form at each frame compression data in the voice document of this standard format, adopt a compressed format that defines voluntarily, data in this frame head form is divided into many fragments, and gets rid of the wherein unnecessary data of part.
3, the method for speech play on the electronic installation as claimed in claim 2, it is characterized in that, this electronic installation according to the following step, converts the voice document of this standard format to voice compression format that this defines voluntarily when downloading the voice document of this standard format:
At first, open the voice document of this standard format, it is carried out the initialization operation, to discern the frame head of each frame compressed content in this voice document;
Seek synchronization character, and after finding synchronization character,, carry out synchronous processing according to its bit;
Whether the voice document of judging this standard format is a normative document;
If this normative document promptly at the frame head of each frame compressed content in the voice document of this standard format, is resolved, remove useless bit, and the primary standard format conversion is the voice compression format that defines voluntarily;
To the voice data in each frame compressed content and the content of auxiliary data, encrypt;
Judge whether this voice document finishes conversion, if not, then continue to seek the synchronization character in the next frame compressed content, and the abovementioned steps that continues, up to whole voice document be converted finish till.
4, the method for speech play on the electronic installation as claimed in claim 3 is characterized in that, if do not find synchronization character, then withdraws from this converse routine.
5, the method for speech play on the electronic installation as claimed in claim 3 is characterized in that, if non-this normative document of voice document of this standard format then withdraws from this converse routine.
6, the method for speech play on the electronic installation as claimed in claim 3 is characterized in that, this electronic installation system will convert the voice document of this compressed format that defines voluntarily to according to following playing program, plays back in this electronic installation certainly:
Open the voice document of this compressed format that defines voluntarily earlier, and it is carried out the initialization operation, to discern the frame head of each frame compressed content in this voice document;
Seek synchronization character, and the synchronization character to being found, the bit according to it comprised carries out the synchronization operation;
Judge whether this voice document is this voice compression format that defines voluntarily, if this voice compression format that defines voluntarily then continues the following step;
To the voice data in each frame compressed content and the content of auxiliary data, be decrypted;
With the audio digital signals after the deciphering, convert the human acoustic pattern voice signal that can experience to after, play back again;
Judge whether this voice document finishes, if not, then continue to seek the synchronization character in the next frame compressed content, and the abovementioned steps that continues, until whole voice document be played finish till.
7, the method for speech play on the electronic installation as claimed in claim 6 is characterized in that, if do not find synchronization character, then withdraws from this playing program.
8, the method for speech play on the electronic installation as claimed in claim 6 is characterized in that, if not this voice compression format that defines voluntarily then withdraws from this playing program.
9, the method for speech play on the electronic installation as claimed in claim 1 is characterized in that, this electronic installation is a mobile phone.
10, the method for speech play on the electronic installation as claimed in claim 1 is characterized in that, this electronic installation is a personal digital aid (PDA).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011132442A CN1169118C (en) | 2001-07-04 | 2001-07-04 | Speech playing method for electronic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011132442A CN1169118C (en) | 2001-07-04 | 2001-07-04 | Speech playing method for electronic device |
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| Publication Number | Publication Date |
|---|---|
| CN1393849A true CN1393849A (en) | 2003-01-29 |
| CN1169118C CN1169118C (en) | 2004-09-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB011132442A Expired - Fee Related CN1169118C (en) | 2001-07-04 | 2001-07-04 | Speech playing method for electronic device |
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| Country | Link |
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| CN (1) | CN1169118C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101917474A (en) * | 2010-08-12 | 2010-12-15 | 中兴通讯股份有限公司 | Method, system and device for downloading file |
| WO2015196621A1 (en) * | 2014-06-23 | 2015-12-30 | 广州爱九游信息技术有限公司 | File packing method and device |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100370437C (en) * | 2005-09-30 | 2008-02-20 | 迈世亚（北京）科技有限公司 | Method for duplicating music data |
-
2001
- 2001-07-04 CN CNB011132442A patent/CN1169118C/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101917474A (en) * | 2010-08-12 | 2010-12-15 | 中兴通讯股份有限公司 | Method, system and device for downloading file |
| WO2012019388A1 (en) * | 2010-08-12 | 2012-02-16 | 中兴通讯股份有限公司 | Method, system and device for file download |
| CN101917474B (en) * | 2010-08-12 | 2015-08-12 | 中兴通讯股份有限公司 | The method for down loading of file, system and device |
| WO2015196621A1 (en) * | 2014-06-23 | 2015-12-30 | 广州爱九游信息技术有限公司 | File packing method and device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1169118C (en) | 2004-09-29 |
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Owner name: YINGHUADA(NAN JING) TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: YINGYEDA GROUP(NANJING) ELECTRONIC TECHNOLOGY CO.,LTD Effective date: 20041112 |
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Effective date of registration: 20041112 Address after: 210000 Pai Road, Jiangning economic and Technological Development Zone, Nanjing, Jiangsu Patentee after: Inventec (Nanjing) Technology Co., Ltd. Address before: Nanjing City, Jiangsu province 210006 Crane Street No. 100 Patentee before: Inventec Group (Nanjing) Electronic Technology Co., Ltd. |
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| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20040929 Termination date: 20130704 |