CN105529037A - Communication equipment voice quality evaluation testing system and testing method - Google Patents
Communication equipment voice quality evaluation testing system and testing method Download PDFInfo
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- CN105529037A CN105529037A CN201510885860.2A CN201510885860A CN105529037A CN 105529037 A CN105529037 A CN 105529037A CN 201510885860 A CN201510885860 A CN 201510885860A CN 105529037 A CN105529037 A CN 105529037A
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- 238000012360 testing method Methods 0.000 title claims abstract description 67
- 238000004891 communication Methods 0.000 title claims abstract description 38
- 238000013441 quality evaluation Methods 0.000 title abstract description 3
- 238000012545 processing Methods 0.000 claims abstract description 40
- 238000011156 evaluation Methods 0.000 claims abstract description 32
- 238000001303 quality assessment method Methods 0.000 claims description 25
- 238000000034 method Methods 0.000 claims description 15
- 238000010998 test method Methods 0.000 claims description 10
- 230000005540 biological transmission Effects 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 5
- 230000006870 function Effects 0.000 claims description 3
- 230000004807 localization Effects 0.000 claims description 3
- 238000012372 quality testing Methods 0.000 abstract 1
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Classifications
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
- G10L25/48—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 specially adapted for particular use
- G10L25/51—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 specially adapted for particular use for comparison or discrimination
- G10L25/60—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 specially adapted for particular use for comparison or discrimination for measuring the quality of voice signals
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- Engineering & Computer Science (AREA)
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- Computational Linguistics (AREA)
- Signal Processing (AREA)
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Abstract
The invention provides a communication equipment voice quality evaluation testing system, which comprises an upper computer, a leading audio transmitting/receiving module, a leading audio control module, a voice evaluation core processing module and a tested radio station, wherein the upper computer is connected to the voice evaluation core processing module by virtue of an upper computer connecting interface; the leading audio control module is connected to the voice evaluation core processing module by virtue of the leading audio transmitting/receiving module; both the leading audio control module and the voice evaluation core processing module are connected to the tested radio station by virtue of an audio output interface; and the tested radio station is in feedback connection to the leading audio control module and the voice evaluation core processing module by virtue of an audio acquisition interface. The invention also discloses a testing method of the testing system. The invention is applicable to the generation, receiving and voice quality testing of standard voice of such communication equipment as the radio station and the like; and an objective and accurate evaluation result can be obtained.
Description
Technical field
The present invention relates to communication voice quality analysis technical field, particularly, relate to a kind of communication device voice quality assessment test macro and method of testing.
Background technology
The evaluation of voice quality, can be divided into subjective assessment and objective evaluation two kinds of modes.One is subjective method, this method selects multiple user to listen to the section audio sampling after network delivery, and provide an evaluation score to it, and this is called as MOS (MeanOpinionScore) and evaluates, 5 represent best quality, and 1 represents minimum quality.The shortcoming of adopting in this way is: consuming time, effort and higher to the requirement of subject.
Consider that the subjective method of hearing test requires to select multiple user to test, expense is larger, and researcher proposes objective appraisal method.More typical method for objectively evaluating has three kinds at present, is PESQ, 3SQM and E model respectively.In PESQ method, transmit leg sends the audio sample of a reference, test macro compares the audio sample after Internet Transmission and original audio sample, provides by the sensor model of a simulation human auditory system VoIP quality that a corresponding MOS value carrys out estimating user perception.Consider the delay jitter situation of audio packet, PESQ algorithm introduces time unifying mechanism.PESQ method comparison is complicated, and requires to send reference signal, and this makes it not be suitable for real-time Speech Assessment.About the detailed content of PESQ algorithm, can with reference to P862, P862.1, P862.2, P862.3 recommendation of ITU-T.
E model designs to help Telecommunications Engineer to carry out transmission plan the earliest, but also can be used for the quality assessment of audio call.The impact of the various factors of audio frequency when the transmitting terminal transmitted, channel and receiving end transmit for the voice quality of user awareness considered by this model, various factors is added together formation transmission quality evaluation points R, finally provides corresponding MOS value according to the R factor again.
In the use procedure of the communication system of communication facilities and composition thereof, the detection of call audio quality is important content always, but the more employing manual detection of traditional audio detection, be adopt subjective evaluation method.Also method of testing and the testing tool of some speech quality objective assessments is had at present, but these method of testings and testing tool major part are applied to digital communication speech quality measurement end to end, such as VOIP system, for the speech data in analog channel, cannot start and end time of transmission of accurate recording voice, then cannot record scoring.On the other hand, independent selection speech samples carries out scoring limitation, if many sample sequential testings more accurately can show the damage feature of voice, under the existing communication pattern not changing communication facilities, do not have individual channel can transmit speech samples number, existing testing apparatus cannot realize the test of many voice.Testing apparatus based on E model is the evaluation and test for telephone speech quality, and the selection of parameter is not also mated with the evaluation and test of data and radio station voice, and this kind equipment also cannot realize voice quality assessment quasi real time in addition.
Summary of the invention
For defect of the prior art, the object of this invention is to provide a kind of communication device voice quality assessment test macro and method of testing.
According to an aspect of the present invention, a kind of communication device voice quality assessment test macro is provided, it is characterized in that, comprise host computer, leading audio frequency sending/receiving module, leading audio frequency control module, Speech Assessment core processing module and tested radio station, described leading audio frequency sending/receiving module, leading audio frequency control module, Speech Assessment core processing module composition evaluation and test equipment, described host computer is connected to described Speech Assessment core processing module by host computer connecting interface, described leading audio frequency control module is connected to described Speech Assessment core processing module by described leading audio frequency sending/receiving module, described leading audio frequency control module and described Speech Assessment core processing module are connected to described tested radio station jointly by audio output interface, described tested radio station is by audio collection interface feedback link extremely described leading audio frequency control module and described Speech Assessment core processing module.
Preferably, described Speech Assessment core processing module comprises built-in received pronunciation storehouse, send lead code functional module, receive lead code functional module, speech evaluating algoritic module, localization function module, system noise floor compensating module, described transmission lead code functional module and reception lead code functional module are for being connected described leading audio frequency sending/receiving module.
Preferably, described test macro also comprises amplifier or attenuator, and described amplifier or attenuator are connected to described audio collection interface and between described leading audio frequency control module and Speech Assessment core processing module.
Preferably, it is characterized in that, described audio collection interface is connected with adapter.
Preferably, described tested radio station connects two described evaluation and test equipment respectively.
According to a further aspect in the invention, a kind of method of testing of above-mentioned communication device voice quality assessment test macro is provided, it is characterized in that, comprise the steps:
(1) described host computer sends test instruction to described Speech Assessment core processing module by host computer connecting interface;
(2) described Speech Assessment core processing module sends audio frequency lead code to described leading audio frequency sending/receiving module;
(3) described Speech Assessment core processing module sends standard testing voice to audio output port;
(4) described tested radio station receives the standard testing voice that the lead code of remote speech and described audio output port send;
(5) speech-controlled information is isolated in described tested radio station from described remote speech lead code;
(6) recorded by described audio collection mouth in described tested radio station;
(7) described Speech Assessment nucleus module makes its received pronunciation that aligns after editing recorded speech;
(8) by evaluating method between language, row during recorded speech is evaluated and tested.
Preferably, the evaluating method in described (8) step is one or more in PESQ, PSQM, PSQM+.
Compared with prior art, the present invention has following beneficial effect:
Be applicable to the generation of the voice of the communication facilities standards such as radio station, reception and voice quality test, objective and accurate evaluation result can be obtained, method of testing can be supported from the test of ring near-end and double card remote test, tests can be applied to the on-the-spot communication system channel speech quality objective assessment to communication facilities and composition thereof.
Accompanying drawing explanation
By reading the detailed description done non-limiting example with reference to the following drawings, other features, objects and advantages of the present invention will become more obvious:
Fig. 1 is structural schematic block diagram of the present invention;
Fig. 2 is that the reality in the corresponding tested radio station of a host computer is according to schematic diagram;
Fig. 3 is that the reality in the corresponding tested radio station of two host computers is according to schematic diagram.
In figure: 1 is the interface of Speech Assessment module and host computer, 2 is tested radio station audio output interface, 3 is the audio collection interface in tested radio station, 4 is amplifier, and 5 is leading audio frequency sending/receiving module, and 6 is leading audio frequency control module, 7 is Speech Assessment core processing module, 8 is host computer, and 9 is tested radio station, and 10 is evaluation and test equipment.
Embodiment
Below in conjunction with specific embodiment, the present invention is described in detail.Following examples will contribute to those skilled in the art and understand the present invention further, but not limit the present invention in any form.It should be pointed out that to those skilled in the art, without departing from the inventive concept of the premise, some distortion and improvement can also be made.These all belong to protection scope of the present invention.
Communication device voice quality assessment test macro comprises host computer, leading audio frequency sending/receiving module, leading audio frequency control module, Speech Assessment core processing module and tested radio station.Described Speech Assessment core processing module comprises built-in received pronunciation storehouse, sends lead code functional module, receives lead code functional module, speech evaluating algoritic module, localization function module, system noise floor compensating module.
Described leading audio frequency sending/receiving module, leading audio frequency control module, Speech Assessment core processing module composition evaluation and test equipment, described host computer is connected to the described transmission lead code functional module of described Speech Assessment core processing module by host computer connecting interface and receives lead code functional module, described leading audio frequency control module is connected to described Speech Assessment core processing module by described leading audio frequency sending/receiving module, described leading audio frequency control module and described Speech Assessment core processing module are connected to described tested radio station jointly by audio output interface, described tested radio station is by audio collection interface feedback link extremely described leading audio frequency control module and described Speech Assessment core processing module.
Audio collection interface is connected amplifier or attenuator with between described leading audio frequency control module and Speech Assessment core processing module.Described audio collection interface is connected with adapter.
When evaluating and testing two equipment simultaneously, tested radio station connects two described evaluation and test equipment respectively and evaluates and tests simultaneously.
The method of testing of communication device voice quality assessment test macro comprises the steps:
(1) described host computer sends test instruction to described Speech Assessment core processing module by host computer connecting interface;
(2) described Speech Assessment core processing module sends audio frequency lead code to described leading audio frequency sending/receiving module;
(3) described Speech Assessment core processing module sends standard testing voice to audio output port;
(4) described tested radio station receives the standard testing voice that the lead code of remote speech and described audio output port send;
(5) speech-controlled information is isolated in described tested radio station from described remote speech lead code;
(6) recorded by described audio collection mouth in described tested radio station;
(7) described Speech Assessment nucleus module makes its received pronunciation that aligns after editing recorded speech;
(8) by evaluating method between language to row evaluation and test during recorded speech, evaluating method is one or more in PESQ (subjective speech quality assessment) PESQ, PSQM, PSQM+.
As shown in Figure 1, the evaluation and test equipment 10 of this communication device voice Objective Quality Assessment comprises the interface 1 with host computer 8, audio output interface 2 interconnective with tested radio station, the audio collection interface 3 be connected with tested radio station 9, connects amplifier 4 in likely realizing, leading audio frequency sending/receiving module 5, and leading audio frequency control module 6, with Speech Assessment core processing module 7, wherein module 5 and 6, or module 6 and 7 may be physically a module.This equipment likely comprises the shielding box of whole device.
The evaluation and test equipment of this communication device voice Objective Quality Assessment can also comprise audio conversion joint, is connected to the audio collection interface in described tested radio station.Audio conversion joint is used for the connection between various different audio interface, can be connected to the sound card of evaluation and test equipment with the output signal of the evaluation and test equipment ensureing different interface type.The evaluation and test equipment of this communication device voice Objective Quality Assessment can also comprise pre-attenuator or amplifier, for adjusting the volume of audio collection sound, adapts to the input of different communication equipment.
Further illustrate principle of work of the present invention and using method below.
See accompanying drawing 2, a host computer 8 is tested a tested radio station 9 by evaluation and test equipment 10.See accompanying drawing 3, two host computers 8 can be crossed and by two respective evaluation and test equipment 10, a tested radio station 9 is tested, raise the efficiency.
See accompanying drawing 1, host computer is by the interface with this equipment, send instruction, this equipment is indicated to send tested speech, first this equipment send audio frequency lead code, standard testing voice are sent to audio output port after success, audio frequency lead code and standard audio pass through test channel, receiver module is responsible for the lead code receiving remote speech, the control informations such as voice record sequence number are isolated from information, and exciting recorded program, the End of Tape possible time because of agreement is as 8s or receive follow-up audio frequency end code and stop.After End of Tape, Speech Assessment nucleus module may be reduced recorded speech, with the received pronunciation that aligns, calls speech evaluating algorithm afterwards, such as PESQ, compares impaired speech and raw tone, and provide the scoring of impaired speech.In order to make up the impact of whole system for communication device voice quality, this equipment can according to received pronunciation and the standard impaired speech damage situations of (without communication facilities) in direct-connected situation, design suitable backoff algorithm, be applied in the damage measure result by communication facilities, thus the impact of this equipment on communication device voice quality compensates.
Below for concrete use, introduce the use of the evaluation and test equipment of this communication device voice Objective Quality Assessment:
Example 1: the voice quality utilizing the evaluation and test device measuring monitoring system in the present invention.The host computer of speech quality objective assessment equipment is one and has installed the personal computer of Ubuntu14.04, and this computing machine is interconnected by serial ports and speech objective valuator device.This computing machine has installed minicom or similar operation of serial-port software.
The audio output in audio collection interface radio station of the present invention, audio output connects the audio input end in radio station.May need as required to use adapter, attenuator or amplifier.Testing procedure is as follows:
Host computer uses minicom software, and utilize AT+S+1 instruction to indicate voice valuator device to send Article 1 received pronunciation, Speech Assessment module sends FSK 4-digit number 0001, sends received pronunciation 1 after representative, sends received pronunciation 1 afterwards.
The leading voice sent are by radio station system, and arrive the audio input end of valuator device, lead code analytical capabilities parses digital command 0001, starts recorded program simultaneously.The duration of a sound as received pronunciation 1 is 8s, and recorded program records 10 seconds.
After recording terminates, Speech Assessment module is accurately aimed at recorded speech, the impact noise owing to producing when playing voice and recorded speech switch opens before deletion.
Speech Assessment nucleus module calls objective voice evaluation algorithms, as PESQ gives a mark to tested impaired speech, and according to backoff algorithm, surveys result and compensates, obtain final voice quality assessment result to standard.
Host computer can observe directly voice quality assessment result at minicom, also can obtain up-to-date test result by AT+GET+RESULT.
Example 2: remote test is disposed and used example
The audio collection interface of a communication device voice Objective Quality Assessment equipment connects the audio output in radio station, and another communication device voice Objective Quality Assessment equipment audio output connects the audio input end in radio station.The actual connected mode of communication facilities is pressed between radio station.Use adapter as required, attenuator or amplifier.Two host computers connect two communication device voice Objective Quality Assessment modules respectively.
Evaluation and test transmission and receiving step are with example 1.
Above specific embodiments of the invention are described.It is to be appreciated that the present invention is not limited to above-mentioned particular implementation, those skilled in the art can make various distortion or amendment within the scope of the claims, and this does not affect flesh and blood of the present invention.
Claims (7)
1. a communication device voice quality assessment test macro, it is characterized in that, comprise host computer, leading audio frequency sending/receiving module, leading audio frequency control module, Speech Assessment core processing module and tested radio station, described leading audio frequency sending/receiving module, leading audio frequency control module, Speech Assessment core processing module composition evaluation and test equipment, described host computer is connected to described Speech Assessment core processing module by host computer connecting interface, described leading audio frequency control module is connected to described Speech Assessment core processing module by described leading audio frequency sending/receiving module, described leading audio frequency control module and described Speech Assessment core processing module are connected to described tested radio station jointly by audio output interface, described tested radio station is by audio collection interface feedback link extremely described leading audio frequency control module and described Speech Assessment core processing module.
2. communication device voice quality assessment test macro according to claim 1, it is characterized in that, described Speech Assessment core processing module comprises built-in received pronunciation storehouse, send lead code functional module, receive lead code functional module, speech evaluating algoritic module, localization function module, system noise floor compensating module, described transmission lead code functional module and reception lead code functional module are for being connected described leading audio frequency sending/receiving module.
3. communication device voice quality assessment test macro according to claim 1, it is characterized in that, described test macro also comprises amplifier or attenuator, and described amplifier or attenuator are connected to described audio collection interface and between described leading audio frequency control module and Speech Assessment core processing module.
4. communication device voice quality assessment test macro according to any one of claim 1 to 3, is characterized in that, described audio collection interface is connected with adapter.
5. communication device voice quality assessment test macro according to any one of claim 1 to 3, is characterized in that, described tested radio station connects two described evaluation and test equipment respectively.
6. a method of testing for application communication device voice quality assessment test macro according to any one of claim 1 to 5, is characterized in that, comprise the steps:
(1) described host computer sends test instruction to described Speech Assessment core processing module by host computer connecting interface;
(2) described Speech Assessment core processing module sends audio frequency lead code to described leading audio frequency sending/receiving module;
(3) described Speech Assessment core processing module sends standard testing voice to audio output port;
(4) described tested radio station receives the standard testing voice that the lead code of remote speech and described audio output port send;
(5) speech-controlled information is isolated in described tested radio station from described remote speech lead code;
(6) recorded by described audio collection mouth in described tested radio station;
(7) described Speech Assessment nucleus module makes its received pronunciation that aligns after editing recorded speech;
(8) by evaluating method between language, row during recorded speech is evaluated and tested.
7. method of testing according to claim 6, is characterized in that, the evaluating method in described (8) step is one or more in PESQ, PSQM, PSQM+.
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Application publication date: 20160427 |