CN107221319A - A kind of speech recognition test system and method - Google Patents

A kind of speech recognition test system and method Download PDF

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Publication number
CN107221319A
CN107221319A CN201710342753.4A CN201710342753A CN107221319A CN 107221319 A CN107221319 A CN 107221319A CN 201710342753 A CN201710342753 A CN 201710342753A CN 107221319 A CN107221319 A CN 107221319A
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module
signal
standard
testing
test
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绔ュ钩
童平
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Xiamen Intretech Inc
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Xiamen Intretech Inc
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    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10LSPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L15/00Speech recognition
    • G10L15/01Assessment or evaluation of speech recognition systems
    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10LSPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L25/00Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
    • G10L25/48Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 specially adapted for particular use
    • G10L25/51Speech 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
    • G10L25/60Speech 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)
  • Computational Linguistics (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Quality & Reliability (AREA)
  • Signal Processing (AREA)
  • Circuit For Audible Band Transducer (AREA)

Abstract

The present invention relates to field of speech recognition, the invention discloses a kind of speech recognition test system, the live signal test module being connected including main control module and with main control module, recording quality test module, tone testing module and tone testing module under conventional scene under standard environment, the live signal test module is used for the quality integrality and unit for electrical property parameters for testing pickoff signals, the recording quality test module is used for the unit for electrical property parameters for testing recorded audio signals quality, tone testing module is used for phonetic recognization rate under testing standard environment under the standard environment, tone testing module is used to test phonetic recognization rate under conventional use environment under the conventional scene.The invention also discloses a kind of speech recognition method of testing.Present system integrated level is high, makes whole testing process easy to operate, and testing efficiency is high, and test system comprehensively, improves test accuracy rate.

Description

A kind of speech recognition test system and method
Technical field
The invention belongs to field of speech recognition, more particularly to a kind of speech recognition test system and method.
Background technology
Interactive voice is that development speed is a kind of faster in recent years by current AI, and its aberrant people interacts with machine interface Mode, the product of speech-sound intelligent at home and abroad constantly heated up, and occupies the no small share of in the market, and speech recognition is tested Lengthy and tedious and complicated, the factor for being related to each side is more, especially for early stage microphone pickup orientation, wakes up, echo de-noising, the back of the body Scape de-noising Application on Voiceprint Recognition etc. is assessed.But existing speech recognition test system function is all more single, to complete whole voice and know Do not test, need to use many test systems so that whole testing process complexity is cumbersome, and troublesome poeration, testing efficiency is low, and Test inadequate system comprehensively, test accuracy rate is relatively low.
The content of the invention
It is high present invention aims at a kind of level of integrated system is provided to solve the above problems, operate whole testing process Simplicity, testing efficiency is high, and test system comprehensively, improves the speech recognition test system and method for test accuracy rate.
Therefore, the invention discloses a kind of speech recognition test system, including main control module, live signal test mould Tone testing module, the real-time letter under tone testing module and conventional scene under block, recording quality test module, standard environment Tone testing module point under tone testing module and conventional scene under number test module, recording quality test module, standard environment It is not connected with main control module, the live signal test module is used for the quality integrality for testing pickoff signals and electrical property ginseng Number, the recording quality test module is used for tone testing under the electrical property ginseng for testing recorded audio signals quality, the standard environment Module is used for tone testing module under phonetic recognization rate under testing standard environment, the conventional scene and uses ring for testing routine Phonetic recognization rate under border.
Further, the live signal test module includes standard signal source playing module, microphone, at signal acquisition Module, main control module and signal analyzer are managed, the standard signal source playing module is arranged in anechoic chamber, for playing mark Calibration signal sound source, the microphone gathers standard signal source, and the signal collected is transferred into signal acquisition process module, believes Number acquisition processing module is transferred to main control module after handling signal, main control module is transmitted after handling signal To signal analyzer, signal analyzer carries out data analysis to the electrical property of signal.
Further, the signal acquisition process module is communicated to connect by wired or wireless with main control module.
Further, the recording quality test module includes standard signal source/sound source playing module, microphone, signal Acquisition processing module, main control module, power amplifier module and signal analyzer, the standard signal source/sound source playing module are set In anechoic chamber, the speech corpus audio file for playing intelligence synthesis, the microphone gathers standard signal source/sound source Standard signal source/sound source that playing module is played, and the signal collected is transferred to signal acquisition process module, signal acquisition Processing module is transferred to main control module after handling signal, main control module signal is recorded after by recorded audio signals Power amplifier module is transferred to, power amplifier module carries out being transferred to signal analyzer after power amplifier to recorded audio signals, and signal analyzer is to recording The electrical property of signal carries out data analysis.
Further, tone testing module is adopted including standard source playing module, microphone, signal under the standard environment Collect processing module, main control module and offline voice synthetic module, the voice language that the offline voice synthetic module will be tested The Content Transformation in material storehouse is transmitted to main control module into built-in file, and the standard source playing module is arranged in anechoic chamber, For playing speech corpus audio file, the microphone gathers the standard source that standard source playing module is played, and will The signal collected is transferred to signal acquisition process module, and signal acquisition process module is transferred to master control after handling signal Molding block, main control module carries out phonetic synthesis to signal, and is contrasted with the built-in file of offline voice synthetic module, shows Show the analysis result of test data and calculate speech recognition accuracy.
Further, tone testing module is adopted including standard source playing module, microphone, signal under the conventional scene Collect processing module, main control module and offline voice synthetic module, the voice language that the offline voice synthetic module will be tested The Content Transformation in material storehouse is transmitted to main control module into built-in file, and the standard source playing module is arranged on routine and uses ring In border, for playing speech corpus audio file, the microphone gathers the standard source that standard source playing module is played, And the signal collected is transferred to signal acquisition process module, signal acquisition process module is transferred to after handling signal Main control module, main control module carries out phonetic synthesis to signal, and is carried out pair with the built-in file of offline voice synthetic module Than showing the analysis result of test data and calculating speech recognition accuracy.
Further, the microphone includes microphone monomer or microphone array.
Further, the microphone is electret microphone, analog MEMS microphone or digital MEMS microphone.
Invention additionally discloses a kind of speech recognition method of testing based on above-mentioned speech recognition test system, including it is as follows Step:
Whether S1, the quality integrality and unit for electrical property parameters for testing pickoff signals using live signal test module reaches that design will Ask, if it is, into step S2;If it is not, then improving repeat step S1 after live signal;
S2, recorded audio signals quality is tested using recording quality test module, it is ensured that it is protected with real-time testing signal unit for electrical property parameters Hold consistent, into step S3;
S3, using phonetic recognization rate under tone testing module testing standard environment under standard environment, into step S4;
S4, using phonetic recognization rate under tone testing module testing routine use environment under conventional scene.
Further, the overall recording matter in standard test environment to testing standard sound source is also included in the step S3 The dimension of amount carries out subjective tonequality evaluation amount;Also include entirety in the step S4 in scene interactive testing environment to test The dimension of the recording quality of standard source carries out subjective tonequality evaluation amount.
The advantageous effects of the present invention:
1st, it is convenient to assess early stage monomer microphone or array microphone model acoustic model.
2nd, level of integrated system is high, improves testing efficiency:Level of integrated system is high, comprising under live signal test, standard environment Tone testing and recording quality test under tone testing, conventional scene(Compatible signal and voice quality), facilitate the survey in each stage Data analysis is tried, testing efficiency is improved.
3rd, test accuracy rate is improved:From pickoff signals quality analysis to subjective and objective judgement tone testing result, whole synthesis Property it is strong, reduce error, improve test accuracy rate.
Brief description of the drawings
Fig. 1 is the system structure diagram of the specific embodiment of the invention;
Fig. 2 is the structural representation of the live signal test module of the specific embodiment of the invention;
Fig. 3 is another structural representation of the live signal test module of the present invention;
Fig. 4 is the structural representation of the recording quality test module of the specific embodiment of the invention;
Fig. 5 for the specific embodiment of the invention standard environment under tone testing module structural representation;
Fig. 6 for the specific embodiment of the invention conventional scene under tone testing module structural representation;
Fig. 7 is the method flow diagram of the specific embodiment of the invention;
Fig. 8 is the test flow chart of the specific embodiment of the invention.
Embodiment
In conjunction with the drawings and specific embodiments, the present invention is further described.
As shown in figures 1 to 6, a kind of speech recognition test system, including main control module 1, live signal test module 2, record Tone testing module 5, the live signal under tone testing module 4 and conventional scene under sound quality test module 3, standard environment Tone testing module 5 under tone testing module 4 and conventional scene under test module 2, recording quality test module 3, standard environment It is connected respectively with main control module 1, the control live signal of main control module 1 test module 2, recording quality test module 3, standard Tone testing module 4 and tone testing module 5 under conventional scene are tested according to certain logical order under environment.
In this specific embodiment, main control module 1 is MCU processors, and its operating system can be android or IOS behaviour Make system, certainly, in other embodiments, main control module 1 can also be single-chip microcomputer, PLC etc..
The live signal test module 2 is used for the quality integrality and unit for electrical property parameters for testing pickoff signals, draws letter Number the parameter such as amplitude, distortion, signal to noise ratio, Hz-KHz, in this specific embodiment, as shown in Fig. 2 live signal test module 2 be wired live signal test module, including standard signal source playing module 21, microphone 3, signal acquisition process module 7, main Control module 1 and signal analyzer 8, the standard signal source playing module 21 are arranged in anechoic chamber, to exclude making an uproar for environment Sound, reverberation, echo, the interference to standard signal such as normal mode vibration, standard signal source playing module 21 is used to play by main control The standard signal source that module 1 is provided, the microphone 6 gathers standard signal source, and the signal collected is transferred into signal adopted Collect processing module 7, signal acquisition process module 7 is transferred to main control module 1,1 pair of main control module after handling signal Signal is converted into after Audio signals being transferred to signal analyzer 8, electrical property of the signal analyzer 8 to signal after being handled Data analysis is carried out, the amplitude of signal is drawn, distortion, signal to noise ratio, the parameter such as Hz-KHz.
Certainly, in other embodiments, live signal test module 2 can be wireless live signal test module, such as Fig. 3 It is shown, including standard signal source playing module 21, microphone 3, signal acquisition process module 7, RF signal emission modules 22, RF letter Number receiving module 23, main control module 1 and signal analyzer 8, the standard signal source playing module 21 are arranged in anechoic chamber, To exclude the noise of environment, reverberation, echo, the interference to standard signal such as normal mode vibration, standard signal source playing module 21 is used In the standard signal source that is provided by main control module 1 of broadcasting, the microphone 6 gathers standard signal source, and by the letter collected Signal acquisition process module 7 number is transferred to, signal acquisition process module 7 is transferred to RF signals transmitting mould after handling signal Block 22, RF signal emission modules 22 by signal wireless transmission to RF signal receiving modules 23, after RF signal receiving modules 23 are received Main control module 1 is transmitted a signal to, main control module 1 is transferred to after being converted into Audio signals after handling signal Signal analyzer 8, signal analyzer 8 carries out data analysis to the electrical property of signal, draws the amplitude of signal, distortion, signal to noise ratio, The parameters such as Hz-KHz.
The recording quality test module 3 is used in the electrical property ginseng for testing recorded audio signals quality, this specific embodiment, such as Shown in Fig. 4, the recording quality test module 3 includes standard signal source/sound source playing module 31, microphone 6, at signal acquisition Module 7, main control module 1, power amplifier module 32 and signal analyzer 8 are managed, the standard signal source/sound source playing module 31 is set In anechoic chamber, the speech corpus audio file of the intelligence synthesis stored for playing in main control module 1, the microphone Standard signal source/sound source that 6 collection standard signal sources/sound source playing module 31 is played, and the signal collected is transferred to letter Number acquisition processing module 7, signal acquisition process module 7 is transferred to main control module 1, main control module after handling signal Recorded audio signals are transferred to power amplifier module 32 by 1 pair of signal after recording, and power amplifier module 32 carries out passing after power amplifier to recorded audio signals Signal analyzer 8 is defeated by, signal analyzer 8 carries out data analysis to the electrical property of recorded audio signals.
Tone testing module 4 is used for phonetic recognization rate, this specific embodiment under testing standard environment under the standard environment In, as shown in figure 5, tone testing module 4 includes standard source playing module 41, microphone 6, at signal acquisition under standard environment Manage module 7, main control module 1 and offline voice synthetic module 9, the voice language that the offline voice synthetic module 9 will be tested The Content Transformation in material storehouse is transmitted to main control module 1 into built-in file, and the standard source playing module 41 is arranged on anechoic chamber Interior, the tested speech corpus audio file for playing the storage of main control module 1, the microphone 6 gathers standard sound The standard source that source playing module 41 is played, and the signal collected is transferred at signal acquisition process module 7, signal acquisition Reason module 7 is transferred to main control module 1 after handling signal, main control module 1 signal is carried out after phonetic synthesis with from The built-in file of line voice synthetic module 9 is contrasted, and is shown the analysis result of test data and is calculated speech recognition accuracy.
In this specific embodiment, tone testing module 4 also includes recording file playing module 10, main control under standard environment Module 1 is also recorded to signal, and recorded audio signals are transferred into recording file playing module 10 played out, to carry out subjectivity Assessment of acoustics quantifies.
Tone testing module 5 is used to test phonetic recognization rate under conventional use environment under the conventional scene, and this is specific real Apply in example, as shown in fig. 6, tone testing module 5 is adopted including standard source playing module 51, microphone 6, signal under conventional scene Collect processing module 7, main control module 1 and offline voice synthetic module 9, the language that the offline voice synthetic module 9 will be tested The Content Transformation of sound corpus is transmitted to main control module 1 into built-in file, and the standard source playing module 51 is arranged on often Advise in use environment, the tested speech corpus audio file for playing the storage of main control module 1, the microphone 6 The standard source that standard source playing module 51 is played is gathered, and the signal collected is transferred to signal acquisition process module 7, Signal acquisition process module 7 is transferred to main control module 1 after handling signal, main control module 1 carries out voice to signal Synthesis, and contrasted with the built-in file of offline voice synthetic module 9, show the analysis result of test data and calculate voice Recognition accuracy.
In this specific embodiment, tone testing module 5 also includes recording file playing module 10, main control under conventional scene Module 1 is also recorded to signal, and recorded audio signals are transferred into recording file playing module 10 played out, to carry out subjectivity Assessment of acoustics quantifies.
In this specific embodiment, the microphone 6 can be microphone monomer or microphone array, and the type of microphone can To be electret microphone, analog MEMS microphone or digital MEMS microphone.
In this specific embodiment, standard source can be able to be that artificial synthesized sound source or voice recording standard are common Talk about version sound source.
In this specific embodiment, signal analyzer 8 can be Audio Precision audio-frequency tests analyzers or B&K sounds The relevant devices such as frequency tester.
In this specific embodiment, signal acquisition process module 7 uses existing signal acquisition process chip, power amplifier module 32 Using existing power amplifier chip, this is that those skilled in the art can realize easily, is no longer described in detail.
In this specific embodiment, conventional use environment can be really conventional use environment or indoors mould Intend conventional use environment.
In this specific embodiment, standard signal source playing module 21, standard signal source/sound source playing module 31, standard sound Source playing module 41 and standard source playing module 51 realize that high-fidelity music center is calibrated and root using same high-fidelity music center Played out according to required volume.Certainly, in other embodiments, it would however also be possible to employ artificial mouth is realized.Recording file plays mould Block 10 is high-fidelity music center.
In this specific embodiment, freely the position for being tested microphone 6 can be changed in test.
As shown in fig. 7, invention additionally discloses a kind of speech recognition test side based on above-mentioned speech recognition test system Method, comprises the following steps:
S1, the quality integrality and unit for electrical property parameters of pickoff signals, including amplitude are tested using live signal test module, is lost Very, whether signal to noise ratio, the parameter such as Hz-KHz reaches design requirement, if it is, into step S2;If it is not, then improving real When signal after repeat step S1.
This step is mainly to determine whether the pickoff signals circuit of test system is complete, and whether the waveform of reduction is abnormal, letter Number complete electric performance test it is no reach the quality that the links such as design standard define pickup signal, be subsequent normalization test do Preferential platform, so as to improve test accuracy.
S2, recorded audio signals quality is tested using recording quality test module, it is ensured that it joins with real-time testing signal electrical property Number is consistent, into step S3.
The recording signal integrality of recording quality test synthesis feedback test system, signal transacting, signal quality is simultaneously contrasted Live signal confirms that recorded audio signals quality is consistent with real-time testing signal unit for electrical property parameters with reference to requiring
Contrasted by recorded audio signals quality with live signal quality, confirm that the electrical property of recorded audio signals reaches and live signal The same design requirement of electrical property, carries out subjective tonequality evaluative dimension additionally by the standard source to recording, combines subjectivity With objective data analysis.
S3, using phonetic recognization rate under tone testing module testing standard environment under standard environment, into step S4.
Specifically, the test environment of this step is still defined in anechoic chamber, main purpose is voice under validation criteria environment Discrimination, its result can refer to the phonetic recognization rate tested under conventional situation and compare, and be follow-up optimization speech recognition or raising It is accurate that reference frame is provided, while the overall dimension to the recording quality of testing standard sound source in standard test environment is led The evaluation of kwan-yin matter quantifies.
S4, using phonetic recognization rate under tone testing module testing routine use environment under conventional scene.
Tested specifically, simulating conventional use environment, it is considered to room noise, reverberation, echo, the factor such as normal mode vibration, really Recognize its phonetic recognization rate, and result is more inclined to user's use pattern, while integrally to test in scene interactive testing environment The dimension of the recording quality of standard source carries out subjective tonequality evaluation amount.
Specific test flow chart may refer to Fig. 8, and this is no longer described in detail.
Four step tests are analyzed signal data more than, and the subjective tonequality examination of combination further improves voice knowledge Other test accuracy rate.
High in the clouds is pushed the present disclosure applies equally to online speech recognition test, i.e. networking
Although specifically showing and describing the present invention with reference to preferred embodiment, those skilled in the art should be understood that Do not departing from the spirit and scope of the present invention that appended claims are limited, in the form and details can be to this hair It is bright to make a variety of changes, it is protection scope of the present invention.

Claims (10)

1. a kind of speech recognition test system, it is characterised in that:Including main control module, live signal test module, recording matter Measure test module, tone testing module under tone testing module and conventional scene under standard environment, the live signal tests mould Under block, recording quality test module, standard environment under tone testing module and conventional scene tone testing module respectively with master control Molding block is connected, and the live signal test module is used for the quality integrality and unit for electrical property parameters for testing pickoff signals, described Recording quality test module, which is used for tone testing module under the electrical property ginseng for testing recorded audio signals quality, the standard environment, to be used for Tone testing module is used to test voice under conventional use environment under phonetic recognization rate under testing standard environment, the conventional scene Discrimination.
2. speech recognition test system according to claim 1, it is characterised in that:The live signal test module includes Standard signal source playing module, microphone, signal acquisition process module, main control module and signal analyzer, the standard letter Number source playing module is arranged in anechoic chamber, for playing standard signal sound source, and the microphone gathers standard signal source, and will The signal collected is transferred to signal acquisition process module, and signal acquisition process module is transferred to master control after handling signal Molding block, main control module is transferred to signal analyzer after handling signal, signal analyzer enters to the electrical property of signal Row data analysis.
3. speech recognition test system according to claim 2, it is characterised in that:The signal acquisition process module passes through It is wired or wireless to be communicated to connect with main control module.
4. speech recognition test system according to claim 1, it is characterised in that:The recording quality test module includes Standard signal source/sound source playing module, microphone, signal acquisition process module, main control module, power amplifier module and signal analysis Instrument, the standard signal source/sound source playing module is arranged in anechoic chamber, described for playing speech corpus audio file Standard signal source/sound source that microphone collection standard signal source/sound source playing module is played, and the signal collected is transferred to Signal acquisition process module, signal acquisition process module is transferred to main control module, main control module after handling signal Recorded audio signals are transferred to power amplifier module after being recorded to signal, power amplifier module is transferred to letter after carrying out power amplifier to recorded audio signals Number analyzer, signal analyzer carries out data analysis to the electrical property of recorded audio signals.
5. speech recognition test system according to claim 1, it is characterised in that:Tone testing mould under the standard environment Block includes standard source playing module, microphone, signal acquisition process module, main control module and offline voice synthetic module, The offline voice synthetic module transmits the Content Transformation of tested speech corpus to main control module into built-in file, The standard source playing module is arranged in anechoic chamber, the audio file for playing speech corpus, Mike's elegance Collect the standard source that standard source playing module is played, and the signal collected is transferred to signal acquisition process module, signal Acquisition processing module is transferred to main control module after handling signal, main control module carries out phonetic synthesis to signal, and Contrasted with the built-in file of offline voice synthetic module, show the analysis result of test data and to calculate speech recognition accurate Rate.
6. speech recognition test system according to claim 1, it is characterised in that:Tone testing mould under the conventional scene Block includes standard source playing module, microphone, signal acquisition process module, main control module and offline voice synthetic module, The offline voice synthetic module transmits the Content Transformation of tested speech corpus to main control module into built-in file, The standard source playing module is arranged in conventional use environment, the audio file for playing speech corpus, the wheat The standard source that gram elegance collection standard source playing module is played, and the signal collected is transferred to signal acquisition process mould Block, signal acquisition process module is transferred to main control module after handling signal, main control module carries out voice to signal Synthesis, and contrasted with the built-in file of offline voice synthetic module, show the analysis result of test data and calculate voice Recognition accuracy.
7. the speech recognition test system according to claim 2-6 any one, it is characterised in that:The microphone includes Microphone monomer or microphone array.
8. speech recognition test system according to claim 7, it is characterised in that:The microphone is electret mike Wind, analog MEMS microphone or digital MEMS microphone.
9. a kind of speech recognition method of testing of the speech recognition test system based on described in claim 1-8 any one, its It is characterised by, comprises the following steps:
Whether S1, the quality integrality and unit for electrical property parameters for testing pickoff signals using live signal test module reaches that design will Ask, if it is, into step S2;If it is not, then improving repeat step S1 after live signal;
S2, recorded audio signals quality is tested using recording quality test module, it is ensured that it is protected with real-time testing signal unit for electrical property parameters Hold consistent, into step S3;
S3, using phonetic recognization rate under tone testing module testing standard environment under standard environment, into step S4;
S4, using phonetic recognization rate under tone testing module testing routine use environment under conventional scene.
10. the voice of the speech recognition test system according to claim 9 based on described in claim 1-8 any one Recognizing test method, it is characterised in that:Also include entirety in the step S3 in standard test environment to testing standard sound source The dimension of recording quality carry out subjective tonequality evaluation amount;Also include in the step S4 overall in scene interactive testing environment In subjective tonequality evaluation amount is carried out to the dimension of the recording quality of testing standard sound source.
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CN111429884A (en) * 2020-03-31 2020-07-17 佛山科学技术学院 Speech recognition rate analysis system
CN111798852A (en) * 2019-06-27 2020-10-20 深圳市豪恩声学股份有限公司 Voice wake-up recognition performance test method, device and system and terminal equipment
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WO2023050301A1 (en) * 2021-09-30 2023-04-06 华为技术有限公司 Speech quality assessment method and apparatus, speech recognition quality prediction method and apparatus, and speech recognition quality improvement method and apparatus

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