CN100362567C - Method of synthetic chord ringing of cell phone - Google Patents
Method of synthetic chord ringing of cell phone Download PDFInfo
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- CN100362567C CN100362567C CNB2004100175182A CN200410017518A CN100362567C CN 100362567 C CN100362567 C CN 100362567C CN B2004100175182 A CNB2004100175182 A CN B2004100175182A CN 200410017518 A CN200410017518 A CN 200410017518A CN 100362567 C CN100362567 C CN 100362567C
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Abstract
The present invention relates to a method for synthesizing chord rings of mobile phones. The present invention is characterized in that on the basis of the existing single-tone ring mobile phone hardware, a computer is used to analyze a standard MIDI file to read a synthesized music data table for forming multiple channels, and the synthesized music data table comprises basic music information, such as channel information, musical scales of musical sound, musical sound frequencies, sound length, rhythm, etc. and control information; the synthesized music data table is input into storage space which is especially allocated by a mobile phone terminal, a mobile phone program processes the musical sound data of each channel in the synthesized music data table and then transmits the musical sound data to a base band control chip; the base band control chip synthesizes the musical sound data and plays a chord ring for the mobile phone by using a waveform superimposing method.
Description
Technical field
The present invention relates to the communications field, relate in particular to the method for the synthetic chord ringing sound of cell phone of a kind of communication terminal.
Background technology
Along with popularizing of the maturation of mobile communication technology and portable terminal, people are increasing for the demand of mobile phone, when realizing its basic call function, and also pursuing individualityization more, fashion-orientation.Traditional mobile phone single-tone the tinkle of bells has only single melody, the note data and the duration of a sound data that only contain a passage in the tinkle of bells, sound the comparison dullness, also do not satisfy the pursuit of user far away, thereby occurred numerous mobile phones on the market with chord ring for the music aesthetic feeling.But existing mobile phone with chord ring all is to adopt special-purpose synthesis chip to come music is synthesized, though interesting to listen to music is provided, but hardware cost also increases therefore and greatly, also needs the technical support of music synthesis chip producer simultaneously, thereby increases the construction cycle.For the technical scheme that adopts the music synthesis chip to synthesize chord ring, all building-up processes all are to be handled by the music synthesis chip, the file type that the while music data also requires synthesis chip to support.Disclosed a kind of mobile phone that can download the tinkle of bells from computing machine for No. 01803980 as Chinese patent application, this mobile phone comprises special music synthesizer, be used for to be converted to from the music data that computing machine is downloaded MIDI (Musical Instrument DigitalInterface music instrument digital interface) form, and play.
MIDI is a kind of standard agreement that is used for exchange music information between music synthesizer (music synthesizers), musical instrument (musicalinstruments) and computing machine.The midi file of standard comprises a plurality of passages (channel is the channel of a tone color), and different passages can send the music of different tone colors simultaneously.
Mobile phone has the base band control chip, it is the central processing unit of mobile phone, be used to handle the signal that mobile phone receives, and comprise that at least one output channel is used to play the tinkle of bells, have four output channels as existing PHS mobile phone (PHS), the base band control chip of GSM mobile handset or CDMA mobile phone can have more output channel.
Summary of the invention
The object of the present invention is to provide a kind of is the method that realizes synthetic ringing sound of cell phone on existing mobile phone hardware basis.
The method of synthetic chord ringing sound of cell phone of the present invention realizes by following technical method: be on existing single-tone the tinkle of bells mobile phone hardware basis, by computing machine the MIDI file of standard is resolved, read the composite music tables of data that forms a plurality of passages, comprise basic musical composition information such as channel information, musical sound scale, musical frequency, the duration of a sound, rhythm and control information in this music data table; In this music data table being input in the storage space of mobile phone terminal specific assigned, handset program is handled the tone data of each passage in the composite music tables of data, deliver to the base band control chip then, synthetic and play the chord ringing sound of cell phone by the base band control chip with the method for waveform stack.
The method of synthetic ringing sound of cell phone disclosed in this invention, its advantage shows: on the hardware foundation of existing single-tone the tinkle of bells mobile phone, neither increase hardware cost, can realize out high-quality chord ring again.
Description of drawings
Fig. 1 is the process flow diagram of computer analyzing MIDI music file of the present invention;
Fig. 2 is the process flow diagram of the synthetic chord ring of mobile phone end of the present invention;
Fig. 3 is for handling the hardware structure diagram of composite music in the mobile phone of the present invention.
Embodiment
The base band control chip is the central processing unit of mobile phone, is used to handle the signal that mobile phone receives, and comprises that at least one output channel is used to play the tinkle of bells, and existing base band control chip needs the music parameter of some chip necessity to carry out the synthetic of music.The method of synthetic chord ringing sound of cell phone of the present invention, be on existing single-tone the tinkle of bells mobile phone hardware basis, by computing machine the MIDI file of standard is resolved, read the composite music tables of data that forms a plurality of passages, comprise basic musical composition information and control information in this music data table, this basic musical composition information and control information comprise channel information, musical sound scale information, musical frequency information, duration information, cadence information; In this music data table being input in the storage space of mobile phone terminal specific assigned, handset program is handled the tone data of each passage in the composite music tables of data, deliver to the base band control chip then, synthetic and play the chord ringing sound of cell phone by the base band control chip with the method for waveform stack.
The preferred embodiments of the present invention adopt PHS (personal handset) mobile phone.Because the base band control chip of PHS mobile phone has only four output channels, so present embodiment is the synthetic embodiment of four chord ringing sounds of cell phone.
See also Fig. 1, the flow process that computing machine is resolved the midi music file is:
1) at first computer program reads output file, and the data layout of music file is judged, reads the music file of midi form;
2) data of 4 passages in the select File obtain the music data and the control data such as happy rank, frequency, the duration of a sound, cadence information of the music in the passage;
3) according to the music and the duration of a sound data that obtain, calculate frequency synthesis and time information, the music data in the tables of data is synthesized and export;
4) all data that obtain are write in the composite music tables of data, comprising music scale, music frequency, the duration of a sound of music file, and rhythm.
Computing machine to the midi music file resolve finish after, the music data table is downloaded and is stored in the storer of mobile phone, see also Fig. 2 and Fig. 3, the flow process that the music control program of mobile phone end is handled the synthetic chord ring of music data is:
1) at first, the music control program of mobile phone reads the music data table, obtains the music data and the music control data of four passages in the music data table;
2) set music rhythm, control informations such as melody volume according to the music control data; Set the control information such as output signal of digital-to-analog conversion controller and the music data circulation is sent in base band control chip relevant register (static register) and the input buffering (flash memory) by interrupt routine;
3) output is carried out outputing to loudspeaker after the power amplification with string signal to power amplifier through what hyperchannel superposeed.Play together by four passages, with the method realization chord ring of waveform stack.
See also Fig. 3, mobile phone end constantly is written to the music data parameter in base band control chip corresponding static register and the input buffering by interrupt routine, the synthetic portion of the music of base band control chip is under the control of clock control, the music data of above-mentioned four passages after digital-to-analog conversion portion, is exported by loudspeaker behind power amplifier.
The present invention neither increases other hardware on the hardware foundation of existing single-tone the tinkle of bells mobile phone, can realize chord ring again.Like this, can save cost, also can offer the more high-quality music tone ringer of cellphone subscriber simultaneously.
Equally, if the base band control chip in the mobile phone has the sound channel more than 4, then can select the music file of a plurality of passages in the music data table, thereby realize the tinkle of bells of many chords.The music tone ringer of quality.
Equally, if the base band control chip in the mobile phone has the sound channel more than 4, then can select the music file of a plurality of passages in the music data table, thereby realize the tinkle of bells of many chords.
Claims (4)
1. the method for a synthetic ringing sound of cell phone is characterized in that comprising the steps:
1) by computing machine to the midi music file, promptly the music file of music instrument digital interface form is resolved and is obtained the music data table, then this music data table is downloaded and is stored in the storer of mobile phone; The process that described computing machine is resolved the midi music file comprises the process of the music data and the control data of several passages in the select File, wherein, described music data and control data comprise happy rank information, frequency information, the duration information of music, and cadence information;
2) the music control program of mobile phone reads the music data table, obtains the music data and the music control data of several passages in the music data table;
3) set music rhythm control information, the control information of melody volume according to the music control data, and the output signal control information of digital-to-analog conversion controller, and music data circulation is sent in base band control chip relevant register and the input buffering by interrupt routine;
4) output through hyperchannel stack with string signal to power amplifier, carry out outputing to loudspeaker after the power amplification.
2. the method for claim 1, it is characterized in that described music data table by computing machine to the midi form, i.e. music instrument digital interface form, music file are resolved and are obtained, the flow process that computing machine is resolved the midi music file is:
1) at first computer program reads output file, and the data layout of music file is judged, reads the music file of midi form;
2) data of several passages in the select File obtain happy rank information, frequency information, the duration information of the music in the passage and cadence information;
3) according to the music data that obtains, calculate frequency synthesis and time information, the music data in the tables of data is synthesized and export;
4) all data that obtain are write in the composite music tables of data.
3. method as claimed in claim 2 is characterized in that described mobile phone is the PHS mobile phone.
4. the method for a synthetic chord ringing sound of cell phone, be on existing single-tone the tinkle of bells mobile phone hardware basis, by computing machine the MIDI file of standard is resolved, read the composite music tables of data that forms several passages, the process that described computing machine is resolved the midi music file comprises the process of the music data and the control data of several passages in the select File, comprise channel information in the described music data table, musical sound scale information, musical frequency information, duration information, and cadence information, in this music data table being input in the storage space of mobile phone terminal specific assigned, handset program is handled the tone data of each passage in the composite music tables of data, this processing procedure comprises according to the music data that obtains, calculate the process of frequency synthesis and time information, then the information that obtains is delivered to the base band control chip, synthetic and play the chord ringing sound of cell phone by the base band control chip with the method for waveform stack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100175182A CN100362567C (en) | 2004-04-07 | 2004-04-07 | Method of synthetic chord ringing of cell phone |
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2004100175182A CN100362567C (en) | 2004-04-07 | 2004-04-07 | Method of synthetic chord ringing of cell phone |
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| Publication Number | Publication Date |
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| CN1564243A CN1564243A (en) | 2005-01-12 |
| CN100362567C true CN100362567C (en) | 2008-01-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2004100175182A Expired - Fee Related CN100362567C (en) | 2004-04-07 | 2004-04-07 | Method of synthetic chord ringing of cell phone |
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Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPWO2007066813A1 (en) * | 2005-12-09 | 2009-05-21 | ソニー株式会社 | Music editing apparatus, music editing information creation method, and recording medium on which music editing information is recorded |
| CN1991973B (en) * | 2005-12-29 | 2011-03-30 | 展讯通信（上海）有限公司 | Music synthesizing method which dynamically regulating MIDI chord number |
| CN101231844B (en) * | 2008-02-28 | 2012-04-18 | 北京中星微电子有限公司 | System and method of mobile phone ring mixing |
| CN101741968B (en) * | 2008-11-27 | 2012-07-25 | 英业达股份有限公司 | Mobile phone and ringing method thereof |
| CN101819763B (en) * | 2010-03-30 | 2012-07-04 | 深圳市五巨科技有限公司 | Method and device for simultaneously playing multiple MIDI files |
| CN102968995B (en) * | 2012-11-16 | 2018-10-02 | 新奥特（北京）视频技术有限公司 | A kind of sound mixing method and device of audio signal |
| CN103093760B (en) * | 2013-01-11 | 2014-10-29 | 广东欧珀移动通信有限公司 | Voice frequency parameter debugging method |
| CN103106895B (en) * | 2013-01-11 | 2016-04-27 | 深圳市振邦实业有限公司 | A kind of control method of music buzzing, system and corresponding electronic product |
| CN107105096A (en) * | 2017-04-28 | 2017-08-29 | 努比亚技术有限公司 | A kind of audio-frequency processing method, terminal and storage medium |
| CN109448684B (en) * | 2018-11-12 | 2023-11-17 | 合肥科拉斯特网络科技有限公司 | Intelligent music composing method and system |
| CN111933099A (en) * | 2020-07-27 | 2020-11-13 | 北京爱其科技有限公司 | MIDI music playing circuit and method based on single chip microcomputer |
Citations (5)
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|---|---|---|---|---|
| CN1326303A (en) * | 2000-05-25 | 2001-12-12 | 雅马哈株式会社 | Portable communication terminal device with music mixing |
| US20030017808A1 (en) * | 2001-07-19 | 2003-01-23 | Adams Mark L. | Software partition of MIDI synthesizer for HOST/DSP (OMAP) architecture |
| CN1395723A (en) * | 2000-01-26 | 2003-02-05 | 雅马哈株式会社 | Portable telephone |
| CN1399773A (en) * | 1999-11-29 | 2003-02-26 | 雅马哈株式会社 | Sound source circuit and telephone terminal comprising thereof |
| US6549767B1 (en) * | 1999-09-06 | 2003-04-15 | Yamaha Corporation | Telephony terminal apparatus capable of reproducing sound data |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6549767B1 (en) * | 1999-09-06 | 2003-04-15 | Yamaha Corporation | Telephony terminal apparatus capable of reproducing sound data |
| CN1399773A (en) * | 1999-11-29 | 2003-02-26 | 雅马哈株式会社 | Sound source circuit and telephone terminal comprising thereof |
| CN1395723A (en) * | 2000-01-26 | 2003-02-05 | 雅马哈株式会社 | Portable telephone |
| CN1326303A (en) * | 2000-05-25 | 2001-12-12 | 雅马哈株式会社 | Portable communication terminal device with music mixing |
| US20030017808A1 (en) * | 2001-07-19 | 2003-01-23 | Adams Mark L. | Software partition of MIDI synthesizer for HOST/DSP (OMAP) architecture |
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