CN102044251B - Voice quality improving method of radio voice data transmission system - Google Patents
Voice quality improving method of radio voice data transmission system Download PDFInfo
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- CN102044251B CN102044251B CN2009101811830A CN200910181183A CN102044251B CN 102044251 B CN102044251 B CN 102044251B CN 2009101811830 A CN2009101811830 A CN 2009101811830A CN 200910181183 A CN200910181183 A CN 200910181183A CN 102044251 B CN102044251 B CN 102044251B
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Abstract
The invention discloses a voice quality improving method of a radio voice data transmission system, which comprises the steps of: classifying voice data into one of good voice data, damaged voice data and unrecognized voice data according to a radio signal quality measurement pointer; operating the damaged voice data and the unrecognized voice data by using an algorithm to obtain information of one of voice data capable of being repaired with a intonation periodic detection method and voice data incapable of being repaired with the intonation periodic detection method; and giving a weight (W) to each group of voice data, wherein when the sum of the weights of N groups before the voice data required to be repaired with the intonation periodic detection method is larger than an appointed weight T, the group of voice data can be repaired with the intonation periodic detection method, and otherwise, the group of voice data cannot be repaired with the intonation periodic detection method. The invention can be used invarious occasions in need of enhancing the voice quality of a receiving end of the radio voice data transmission system.
Description
Technical field
The present invention relates to a kind of radio voice data transmission system, especially relate to the voice quality improvement method of a kind of radio voice data transmission system.
Background technology
In the radio voice data transmission system; Speech data content false or speech data are can't identification very huge to the influence of system voice quality; To the speech data content false, can use that cyclic redundancy check (Cyclic Redundancy Check) inspection data content is whether wrong to be utilized misdata again transmission mechanism or intonation cycle detection method (Pitch Period Detection) are repaired the mistake of speech data content again.For speech data can't identification part also can use misdata again transmission mechanism or intonation cycle detection method (Pitch Period Detection) repair can't identification speech data.
When using radio system transmission data,, often cause data content mistake or the data can't identification because radiowave receives various interference or other factors.Whether data content is wrong if radio transmission system does not use data content error checking method (like cyclic redundancy check Cyclic Redundancy Check) inspection, utilizes misdata transmission mechanism again again.Its content of the collected data of receiving end maybe be wrong, in addition receive can't identification data.For radio voice data transmission system receiving terminal, the speech data of playback error or the speech data of playing true-to-shape replace can't identification speech data the time, the influence of the voice quality that causes is very huge.The present invention uses radio signals mass measurement pointer (Wireless Signal Quality Measure Indicator) to combine the intonation cycle detection method (Pitch Period Detection) of special algorithm to improve above-mentioned disappearance and causes relatively poor voice quality, and then promotes the voice quality of radio voice data transmission system receiving terminal.
At present relevant voice quality improvement method is only mentioned in the minority United States Patent (USP).With reference to No. the 4th, 937,867, United States Patent (USP) notification number, title is " Variable time inversion algorithm controlled system for multi-level speech security "; No. the 6th, 195,639, United States Patent (USP) notification number, title are " Matching algorithm for isolated speech recognition "; With No. the 6th, 275,802, United States Patent (USP) notification number, title is " Search algorithm for large vocabulary speech recognition ".Yet aforementioned all United States Patent (USP)s are only explained the technology of present radio voice data transmission system, do not have the voice quality improvement method about radio voice data transmission system.
Summary of the invention
The invention discloses the voice quality improvement method of a kind of radio voice data transmission system, in order to improving relatively poor voice quality, and then promote the voice quality of radio voice data transmission system receiving terminal.
For reaching above-mentioned purpose; The voice quality improvement method of a kind of radio voice data transmission system, it comprises: speech data is divided into one of speech data that a good speech data, a bad speech data and can't identification according to radio signals mass measurement pointer (Wireless Signal Quality Measure Indicator); Via this bad speech data of an algorithm computing and this can't the speech data of identification after; Obtain the information of one of the speech data of an available intonation cycle detection method (Pitch Period Detection) repairing and speech data of a unavailable intonation cycle detection method repairing; Wherein this algorithm is after the good speech data of N group, and tolerable M group speech datas use the detection method repairings of intonation cycle at most; And give a weights (W respectively to every group of speech data
i ); Wherein, When need use the speech data N group weights summation before of intonation cycle detection method repairing to specify weights T greater than one; Represent that this group speech data can use intonation cycle detection method to repair, and give these weights that available intonation cycle detection method is repaired that this N group weights summation is ∑ W
i, i:0～N-1 wherein; Otherwise, when the N group weights summation when before is less than or equal to these appointment weights T, representes that this group speech data can not use intonation cycle detection method to repair, and give these weights that unavailable intonation cycle detection method is repaired.
The characteristic one of according to the present invention, these weights of the speech data that this available intonation cycle detection method is wherein repaired are recorded in this algorithm, and should place one to play internal memory via the patched speech data of intonation cycle detection method system.
The characteristic one of according to the present invention, these weights of the speech data that this unavailable intonation cycle detection method is wherein repaired are recorded in this algorithm, and place one to play internal memory with the speech data of true-to-shape.
For reaching above-mentioned purpose; The present invention also provides the voice quality improvement method of a kind of radio voice data transmission system, and it comprises: speech data is divided into one of speech data that a good speech data, a bad speech data and can't identification according to radio signals mass measurement pointer; Via this bad speech data of an algorithm computing and this can't the speech data of identification after; Obtain the information of one of the speech data of an available intonation cycle detection method repairing and speech data of a unavailable intonation cycle detection method repairing; Wherein this algorithm is after the good speech data of N group, and tolerable M group speech datas use the detection method repairings of intonation cycle at most; And give a weights (W respectively to every group of speech data
i ); Wherein, When need use the speech data N group weights summation before of intonation cycle detection method repairing to specify weights T greater than one; Represent that this group speech data can use intonation cycle detection method to repair, and give these weights that available intonation cycle detection method is repaired that this N group weights summation is ∑ W
i, i:0～N-1 wherein; Otherwise, when the N group weights summation when before is less than or equal to these appointment weights T, representes that this group speech data can not use intonation cycle detection method to repair, and give these weights that unavailable intonation cycle detection method is repaired;
Above-mentioned expression is following:
∑ W
i＞T, wherein, i:0～N-1: can use intonation cycle detection method to repair;
∑ W
i≤T, wherein, i:0～N-1: can not use intonation cycle detection method to repair;
Wherein, these weights of this good speech data are W
g=M, these weights that this available intonation cycle detection method is repaired are W
p=M-1, these weights that this unavailable intonation cycle detection method is repaired are W
Np=0, and these appointment weights T=M * (N-1).
The characteristic one of according to the present invention, these weights of the speech data that this available intonation cycle detection method is wherein repaired are recorded in this algorithm, and should place one to play internal memory via the patched speech data of intonation cycle detection method.
The characteristic one of according to the present invention, these weights of the speech data that this unavailable intonation cycle detection method is wherein repaired are recorded in this algorithm, and place one to play internal memory with the speech data of true-to-shape.
The present invention uses radio signals mass measurement pointer (Wireless Signal Quality Measure Indicator); In order to measure the quality that receives signal; Whether the speech data content so that decision receives can use instead data content error checking method.Use algorithm of the present invention, after avoiding intonation cycle detection method (Pitch Period Detection) to repair, cause speech data signal distortion distortion.
Description of drawings
Fig. 1 is the voice quality improvement method synoptic diagram of radio voice data transmission of the present invention system.
Fig. 2 is that the data transmission system voice quality of this bad speech data of the present invention is improved method.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is done further explain
Though the present invention can show as multi-form embodiment; But person shown in the accompanying drawing and be preferred embodiment of the present invention in expositor hereinafter; And please understand person disclosed herein and be thought of as an example of the present invention, and be not that intention is in order to be limited to the present invention in diagram and/or the described specific embodiment.
Whether the present invention uses radio signals mass measurement pointer, in order to measure the quality that receives signal, can use with the speech data content that decision receives, and replace data content error checking method, and is incorrect in order to the data source of avoiding intonation cycle detection method to repair.The present invention also uses specific algorithm, and whether decision uses intonation cycle detection method to repair speech data, causes the speech sound signal distortion to avoid repairing too much speech data, and then reduces voice quality.At first; If receive cognizable speech data, and differentiate speech data, find that it is a bad speech data according to radio signals mass measurement pointer; Promptly use algorithm of the present invention to judge and whether use intonation cycle detection method to repair speech data, promptly repair it if can repair; If can not promptly use original speech data, to promote voice quality.
At present please with reference to Fig. 1; It is depicted as first embodiment of the voice quality improvement method of radio voice data transmission of the present invention system, and it comprises: speech data is divided into one of speech data that a good speech data, a bad speech data and can't identification according to radio signals mass measurement pointer; Via this bad speech data of an algorithm computing and this can't the speech data of identification after; Obtain the information of one of the speech data of an available intonation cycle detection method repairing and speech data of a unavailable intonation cycle detection method repairing; Wherein this algorithm is after the good speech data of N group, at most tolerable M group speech datas use the detection method repairings of intonation cycle and give weights (W).Wherein, speech data N group weights summation (the ∑ W before that uses intonation cycle detection method to repair when need
i, when wherein i:0～N) specifies weights T greater than one, represent that this group speech data can use intonation cycle detection method to repair, and give these weights that available intonation cycle detection method is repaired; Otherwise, when the N group weights summation when before is less than or equal to these appointment weights T, representes that this group speech data can not use intonation cycle detection method to repair, and give these weights that unavailable intonation cycle detection method is repaired.
Wherein, During use intonation cycle detection method; Incorrect or repair too much speech data for fear of the data source of repairing, and then cause the speech sound signal distortion and reduce voice quality, thereby design algorithm of the present invention; It is after the good speech data of N group, and tolerable M group speech datas use the detection method repairings of intonation cycle at most.
Do you when the receiving end of radio voice data transmission system receives speech data from air, but judge earlier the whether identification of these data? Can't the identification speech data if can't identification just use algorithm of the present invention whether to judge that available intonation cycle detection method is repaired this.
Wherein this mass measurement pointer can be saved data content proving time and the shared bandwidth of data transmission.From air, receiving speech data when the receiving end of radio voice data transmission system is cognizable speech data, and whether the speech data of receiving according to radio signals mass measurement pointer inspection receiving end again is one of this good speech data and this bad speech data.Should can be recorded in this algorithm by good speech data via what radio signals mass measurement pointer was divided into, and the speech data that will get well places one to play internal memory.And this bad speech data is judged to be available intonation cycle detection method when repairing through this algorithm; These weights of the speech data that this available intonation cycle detection method is repaired can be recorded in this algorithm, and should place one to play internal memory via the patched speech data of intonation cycle detection method; Otherwise if be judged to be unavailable intonation cycle detection method when repairing, these weights of the speech data of then will unavailable intonation cycle detection method repairing can be recorded in this algorithm, and place a broadcast internal memory with original speech data.
Please with reference to Fig. 2, it is depicted as the data transmission system voice quality improvement method of this bad speech data at present.If the speech data received of receiving end for this bad speech data and this can't identification one of speech data, then use algorithm of the present invention to take a decision as to whether one of speech data that this available intonation cycle detection method repairs or speech data that should unavailable intonation cycle detection method repairing.These weights of the speech data that this available intonation cycle detection method is repaired can be recorded in this algorithm, and should place one to play internal memory via the patched speech data of intonation cycle detection method.And these weights of the speech data that this unavailable intonation cycle detection method is repaired can be recorded in this algorithm, and place one to play internal memory with the speech data of true-to-shape.
Another embodiment of the present invention, it is as follows for the expression of this N group weights summation and these appointment weights T that it is different from the first embodiment part:
∑ W
i＞T (wherein, i:0～N): can use intonation cycle detection method to repair;
∑ W
i≤T (wherein, i:0～N): can not use intonation cycle detection method to repair;
Wherein, these weights of this good speech data can be W
g=M, these weights that this available intonation cycle detection method is repaired can be W
p=M-1, these weights that this unavailable intonation cycle detection method is repaired can be W
Np=0, and these appointment weights T=M * (N-1).
In sum; Voice quality improvement method according to radio voice data transmission of the present invention system; The data source that can avoid repairing via the intonation cycle detection method of this algorithm of the present invention is incorrect or repair too much continuous speech data, causes the speech sound signal distortion and then reduces voice quality.
For not having data content error checking method or misdata again for the radio voice data transmission system of transmission mechanism; If when causing the speech data degradation because of the second-rate environment of signal, the present invention sees through radio signals mass measurement pointer and combines the intonation cycle detection method of special algorithm can produce tangible improvement.
The above; Be merely embodiment of the present invention, but protection scope of the present invention is not limited thereto, any technician who is familiar with the present technique field is in the technical scope that the present invention discloses; Can expect easily changing or replacement, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion by said protection domain with claim.
Claims (12)
1. the voice quality improvement method of a radio voice data transmission system is characterized in that it comprises:
Speech data is divided into one of speech data that a good speech data, a bad speech data and can't identification according to radio signals mass measurement pointer (Wireless Signal Quality Measure Indicator);
Via this bad speech data of an algorithm computing and this can't the speech data of identification after; Obtain the information of one of the speech data of an available intonation cycle detection method (Pitch Period Detection) repairing and speech data of a unavailable intonation cycle detection method repairing; Wherein this algorithm is after the good speech data of N group, and tolerable M group speech datas use the detection method repairings of intonation cycle at most; And
Give a weights W respectively to every group of speech data
i
Wherein, When need use the speech data N group weights summation before of intonation cycle detection method repairing to specify weights T greater than one; Represent that this group speech data can use intonation cycle detection method to repair, and give these weights that available intonation cycle detection method is repaired that this N group weights summation is ∑ W
i, i:0～N-1 wherein;
Otherwise, when the N group weights summation when before is less than or equal to these appointment weights T, representes that this group speech data can not use intonation cycle detection method to repair, and give these weights that unavailable intonation cycle detection method is repaired.
2. the voice quality improvement method of radio voice data transmission according to claim 1 system is characterized in that wherein this mass measurement pointer can be saved data content proving time and the shared bandwidth of data transmission.
3. the voice quality improvement method of radio voice data transmission according to claim 1 system is characterized in that, with wherein should being recorded in this algorithm by good speech data weights, and the speech data that will get well places a broadcast internal memory.
4. the voice quality improvement method of radio voice data transmission according to claim 1 system; It is characterized in that; Wherein this bad speech data is judged to be available intonation cycle detection method when repairing through this algorithm; These weights of the speech data that this detection method is repaired in available intonation cycle are recorded in this algorithm, and should place one to play internal memory via the patched speech data of intonation cycle detection method; Otherwise if be judged to be unavailable intonation cycle detection method when repairing, these weights of the speech data of then will unavailable intonation cycle detection method repairing are recorded in this algorithm, and place a broadcast internal memory with original speech data.
5. the voice quality improvement method of radio voice data transmission according to claim 1 system; It is characterized in that; These weights of the speech data that this detection method is wherein repaired in available intonation cycle are recorded in this algorithm, and should place one to play internal memory via the patched speech data of intonation cycle detection method.
6. the voice quality improvement method of radio voice data transmission according to claim 1 system; It is characterized in that; These weights of the speech data that this detection method is wherein repaired in unavailable intonation cycle are recorded in this algorithm, and place one to play internal memory with the speech data of true-to-shape.
7. the voice quality improvement method of a radio voice data transmission system is characterized in that it comprises:
Speech data is divided into one of speech data that a good speech data, a bad speech data and can't identification according to radio signals mass measurement pointer;
Via this bad speech data of an algorithm computing and this can't the speech data of identification after; Obtain the information of one of the speech data of an available intonation cycle detection method repairing and speech data of a unavailable intonation cycle detection method repairing; Wherein this algorithm is after the good speech data of N group, and tolerable M group speech datas use the detection method repairings of intonation cycle at most; And
Give a weights W respectively to every group of speech data
i
Wherein, When need use the speech data N group weights summation before of intonation cycle detection method repairing to specify weights T greater than one; Represent that this group speech data can use intonation cycle detection method to repair, and give these weights that available intonation cycle detection method is repaired that this N group weights summation is ∑ W
i, i:0～N-1 wherein;
Otherwise, when the N group weights summation when before is less than or equal to these appointment weights T, representes that this group speech data can not use intonation cycle detection method to repair, and give these weights that unavailable intonation cycle detection method is repaired;
Above-mentioned expression is following:
∑ W
i＞T, wherein, i:0～N-1: can use intonation cycle detection method to repair;
∑ W
i≤T, wherein, i:0～N-1: can not use intonation cycle detection method to repair;
Wherein, these weights of this good speech data are W
g=M, these weights that this available intonation cycle detection method is repaired are W
p=M-1, these weights that this unavailable intonation cycle detection method is repaired are W
Np=0, and these appointment weights T=M * (N-1).
8. the voice quality improvement method of radio voice data transmission according to claim 7 system is characterized in that wherein this mass measurement pointer can be saved data content proving time and the shared bandwidth of data transmission.
9. the voice quality improvement method of radio voice data transmission according to claim 7 system is characterized in that, with wherein should being recorded in this algorithm by good speech data weights, and the speech data that will get well places a broadcast internal memory.
10. the voice quality improvement method of radio voice data transmission according to claim 7 system; It is characterized in that; Wherein this bad speech data is judged to be available intonation cycle detection method when repairing through this algorithm; These weights of the speech data that this detection method is repaired in available intonation cycle are recorded in this algorithm, and should place one to play internal memory via the patched speech data of intonation cycle detection method; Otherwise if be judged to be unavailable intonation cycle detection method when repairing, these weights of the speech data of then will unavailable intonation cycle detection method repairing are recorded in this algorithm, and place a broadcast internal memory with original speech data.
11. the voice quality improvement method of radio voice data transmission according to claim 7 system; It is characterized in that; These weights of the speech data that this detection method is wherein repaired in available intonation cycle are recorded in this algorithm, and should place one to play internal memory via the patched speech data of intonation cycle detection method.
12. the voice quality improvement method of radio voice data transmission according to claim 7 system; It is characterized in that; These weights of the speech data that this detection method is wherein repaired in unavailable intonation cycle are recorded in this algorithm, and place one to play internal memory with the speech data of true-to-shape.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4937867A (en) * | 1987-03-27 | 1990-06-26 | Teletec Corporation | Variable time inversion algorithm controlled system for multi-level speech security |
| CN1389059A (en) * | 2000-06-29 | 2003-01-01 | 皇家菲利浦电子有限公司 | Speech qality estimation for off-line speech recognition |
| CN1663223A (en) * | 2002-04-15 | 2005-08-31 | 奥迪科德公司 | Method and apparatus for transmitting signaling tones over a packet switched network |
| CN101336431A (en) * | 2005-12-28 | 2008-12-31 | 霍尼韦尔国际公司 | System and method of detecting speech intelligibility and of improving intelligibility of audio announcement systems in noisy and reverberant spaces |
| CN101385269A (en) * | 2005-12-30 | 2009-03-11 | 艾利森电话股份有限公司 | Method and device of HARQ used in wireless multi-carrier system |
-
2009
- 2009-10-13 CN CN2009101811830A patent/CN102044251B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4937867A (en) * | 1987-03-27 | 1990-06-26 | Teletec Corporation | Variable time inversion algorithm controlled system for multi-level speech security |
| CN1389059A (en) * | 2000-06-29 | 2003-01-01 | 皇家菲利浦电子有限公司 | Speech qality estimation for off-line speech recognition |
| CN1663223A (en) * | 2002-04-15 | 2005-08-31 | 奥迪科德公司 | Method and apparatus for transmitting signaling tones over a packet switched network |
| CN101336431A (en) * | 2005-12-28 | 2008-12-31 | 霍尼韦尔国际公司 | System and method of detecting speech intelligibility and of improving intelligibility of audio announcement systems in noisy and reverberant spaces |
| CN101385269A (en) * | 2005-12-30 | 2009-03-11 | 艾利森电话股份有限公司 | Method and device of HARQ used in wireless multi-carrier system |
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