CN1972478A

CN1972478A - A novel method for mobile phone reading short message

Info

Publication number: CN1972478A
Application number: CNA2005101106983A
Authority: CN
Inventors: 林璇; 牛永蔚
Original assignee: Spreadtrum Communications Shanghai Co Ltd
Current assignee: Spreadtrum Communications Shanghai Co Ltd
Priority date: 2005-11-24
Filing date: 2005-11-24
Publication date: 2007-05-30

Abstract

This invention discloses one cell phone short message read method, which comprises the following steps: after receiving message, firstly judging whether need to convert message into play sound; if yes, then sending message by character into sound integration module for analysis to generate one ADPCM data flow; then making ADPCM data flow into common memory into cell phone DSP chip into ADPCM decoder to fulfill output sound after D/A conversion.

Description

A kind of new method of mobile phone reading short message

Technical field

The present invention relates to a kind of new method of mobile phone reading short message, relate in particular to the new method that a kind of mobile phone utilizes TTS (Text-To-Speech) speech synthesis technique reading short message.

Background technology

The application of SMS is very extensive, but so far, the user will read the note in the mobile phone, still needs to check the information that is presented at textual form on the mobile phone terminal screen by the operating handset button.Like this, for all busy user (as the driver) of eyes and both hands, just very inconvenient.And on the other hand, TTS (full name is Text To Speech, i.e. " from Text To Speech ") speech synthesis technique, use linguistics and psychology knowledge simultaneously, by the design of neural net, and under the support of built-in chip, can be literal being converted into intelligently natural-sounding stream.Along with the continuous progress of correlation technique, the TTS technology can be changed in real time to text at present.Under its peculiar intelligent sound controller action, the voice musical note smoothness of text output makes the hearer feel nature when listening to information, has no the cold and detached and jerky sense of machine talk output.The TTS speech synthesis technique has covered GB I and II Chinese character, has English interface, can discern Chinese and English automatically, supports Chinese and English to mix and reads.It is RP that all sound adopt true man's mandarin, has realized the quick phonetic synthesis of 120-150 Chinese character/second, and bright reading rate reaches 3-4 Chinese character/second, makes the user can hear the clear melodious tonequality and the smooth intonation that links up.

Summary of the invention

The technical problem to be solved in the present invention provides a kind of new method of mobile phone reading short message, utilizes the TTS speech synthesis technique that a kind of new method of reading short message is provided for the cellphone subscriber.

For solving the problems of the technologies described above, the new method of a kind of mobile phone reading short message of the present invention, embed TTS module (having speech-sound synthesizing function) and carry out following steps at the mobile phone that can receive note: after mobile phone is received short message, at first judge whether short message to be transferred to voice and play voice; If judged result is need transfer voice to and play voice, then import content of short message into the phonetic synthesis module with the form of character string, after the phonetic synthesis module is carried out syntax analysis and tabled look-up, generate the data flow of an ADPCM; Then with adpcm data stream by shared drive, be sent to dsp chip in the mobile phone frame by frame, dsp chip is sent data into adpcm decoder in the mobile phone, exports voice after finishing D/A switch.

The present invention can be converted to note the form of voice, for cellphone subscriber's reading short message provides a kind of selection easily owing to take speech synthesis technique (TTS) is embedded in the application of SMS.

Description of drawings

Fig. 1 is the inventive method flow chart.

Embodiment

The present invention is further detailed explanation below in conjunction with accompanying drawing.

Generally popular along with SMS, the utilization rate of note is more and more higher.But operating handset button is now checked way of short messages and the inconvenience that is presented at textual form on the mobile phone terminal screen, and special for the people who is driving, driving limit, limit operating handset checks that note is exactly breakneck thing.The present invention is embedded into speech synthesis technique (TTS) in the application of SMS, so that people can be converted to note the form of voice easily, for cellphone subscriber's reading short message provides a kind of convenient and safe selection.

As shown in Figure 1, be the inventive method flow chart: after mobile phone is received short message, at first judge whether it to be transferred to voice and play back, basis for estimation can define according to actual conditions, is set to the pattern of driving a car such as user's mobile phone.If judged result is to need to play voice, then import content of short message (addresser's phone number can also be merged into as required) into tts engine by the form of character string, after TTS carries out syntax analysis to it and tables look-up, generate the data flow of a self adaptation difference pulse code modulation (ADPCM, Adaptive Differential Pulse CodeModulation).Next, with adpcm data stream by shared drive, one one deliver to digital signal processor (DSP) chip, dsp chip is sent data into the decoder of ADPCM, can export voice by power amplifier after finishing D/A (D/A) conversion.

Certainly, embedded speech synthesis technique (TTS) module in advance in the mobile phone of use the inventive method.The technology of TTS can reach business-like stage at present, and system integrator, software developer provide complete interface function and programming example, the user can be called flexibly, and be integrated in other application system.For example, what the phonetic function in the popular at present Kingsoft Powerword software adopted is exactly the TTS voice technology, it can smoothness read aloud whole sentence, whole section and even entire article, voice, word speed free adjustment, the user can also be provided with instant function of pronunciation in addition, when certain word of mouse-pointing, the PowerWord system sends the pronunciation of this speech in real time.

Therefore, the inventive method can be widely used in a mobile phone with SMS arbitrarily.Specifically, on chips such as SC6600C, SC6600D that spreadtrum company produces and SC6600M, promptly can increase the TTS module, to realize this function.Only need in the short message module of cell phone software system, call the interface function of TTS module, can realize the integrated of TTS technology and SMS technology by the processing shown in the accompanying drawing 1.Require emphasis and point out, after receiving note, also can directly speak by earphone, utilize ASR (Automated Speech Recognition) then, i.e. automatic speech recognition technology becomes text with speech conversion, promptly converts the note form to and replys the addresser.The ASR technology is a complicated technology, and this ASR of utilization technology becomes the mode of sending short messages of text to apply for separately as another patent speech conversion.

In sum, the inventive method is taked speech synthesis technique (TTS) is embedded in the application of SMS, TTS and SMS technology organically combined easily note to be converted to the form of voice, for cellphone subscriber's reading short message provides a kind of selection, realized more perfect service.

Claims

1, a kind of new method of mobile phone reading short message, it is characterized in that, the mobile phone that can receive note is embedded with the TTS module, has speech-sound synthesizing function and carries out following steps: after described mobile phone is received short message, at first judge whether described short message to be transferred to voice and play voice; If judged result is need transfer voice to and play voice, then import described content of short message into the phonetic synthesis module with the form of character string, after the phonetic synthesis module is carried out syntax analysis and tabled look-up, generate the data flow of an ADPCM; Then with adpcm data stream by shared drive, be sent to dsp chip in the mobile phone frame by frame, described dsp chip is sent data into adpcm decoder in the mobile phone, exports voice after finishing D/A switch.

According to the new method of the described mobile phone reading short message of claim 1, it is characterized in that 2, described content of short message can comprise the other side's phone number.