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120 个结果
  • 简介:DearColleaguesandFriends,OnbehalfoftheInternationalGastricCancerAssociationandthelocalorganizingcommitteeofIGCC2017,itismyhonourandpleasuretocordiallyinviteyoutothe12thInternationalGastricCancerCongress(IGCC).ThemeetingwillbeheldinBeijing,ChinafromApril20thto23rd,2017.Andwebelieveitwillbeatrulymemorableeventforgastriccancerprofessionalsfromaroundtheworld.

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  • 简介:主持圣诞晚会时的致辞首先应祝贺并欢迎来宾;接着可举例说明备人喜爱圣诞节的不同理由;然后提醒过圣诞节的最重要意义是互相友爱;最后再次祝大家圣诞快乐。圣诞致辞自始至终充满着对生活的热爱,对未来的希望和信心;洋溢着浓浓的亲情、友情和爱

  • 标签: 圣诞晚会 致辞 高二 英语 双语阅读
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  • 简介:Inthispaper,twospeechenhancementsystemswithsupergaussianspeechmodelingarepresented.ThecleanspeechcomponentsareestimatedbyMinimum-Mean-Square-Error(MMSE)es-timatorundertheassumptionthattheDCTcoefficientsofcleanspeecharemodeledbyaLaplacianoraGammadistributionandtheDCTcoefficientsofthenoiseareGaussiandistributed.Then,MMSEestimatorsunderspeechpresenceuncertaintyarederived.Furthermore,theproperestimatorsofthespeechstatisticalparametersareproposed.ThespeechLaplacianfactorisestimatedbyanewdeci-sion-directedmethod.ThesimulationresultsshowthattheproposedalgorithmyieldslessresidualnoiseandbetterspeechqualitythantheGaussianbasedspeechenhancementalgorithmsproposedinrecentyears.

  • 标签: 语音增强 语音模型 MMSE DCT系数估计器 超高斯信源
  • 简介:作为口语的一个主要要素来说,话语技能通常被认为包括三个方面:演讲、讨论和对话。演讲者在做演讲之前感到紧张是正常现象,但如已掌握了良好的演讲技巧就没有理由感到害怕。本研究介绍两个重要的演讲技巧——重复和停顿,以此帮助演讲者在演讲时表现得更好。

  • 标签: 演讲者 演讲 演讲技巧 重复 停顿
  • 简介:用听觉的掩盖的低声说的讲话改进在修改Mel-的模型领域和讲话缺席概率树液被建议。考虑到发声字符--耳语的acteristic,我们修改可伸缩的Mel频率模型。低声说的讲话被建议模型过滤。同时,为每个频率乐队掩盖阀值的价值被讲话缺席概率动态地决定。然后低声说的讲话改进被适应地用不同掩盖的阀值价值修正光谱减法系数进行。提高的低声说的信号上的客观、主观的测试的结果与另外的方法相比显示出那;建议方法能由在掩盖的阀值价值下面减少音乐噪音和背景噪音与更好主观的听觉的质量和更少的失真提高低声说的信号。

  • 标签: 语音增强 听觉掩蔽 模型 概率 增强方法 MEL
  • 简介:在复杂添加剂噪音的环境的讲话端点察觉的一个方法被介绍。基于噪音的分析,静止噪音的一个适应模型被建议检测信号是nonstationary的节。然后,声音被它的泛音结构在这节检测,并且精确端点与典型算法用energy.Compared被寻找,这个算法在很真实的噪音环境可靠地操作。

  • 标签: 声场 噪声 语音端点 声音传播
  • 简介:Byusingthemodernlydevelopedtechniquesofpossibilityandset-valuedstatistics,thispaperdeter-minedthethresholdsofvariouscategoriesofnoiseannoyanceanddefinedthedose-responserelationbe-tweenthelevelsofnoiseandtheirannoyance.Threefactorscontrolledintheexperimentweretypesofnoise:impulseandtraffic;levelofnoise:5Leqfrom45—85dB(A);andperformancetask:withandwithoutspeechrecognition.NoiseinterferencewithspeechrecognitionwasmeasuredwiththeSDTmethod.Ourex-perimentalresultsshowedthatLeqofimpulsenoiseshouldbehigherthanthatoftrafficnoisetogetequalannoyance;thespeechrecognitiontaskmightlightentheexperienceofannoyance;thehigherthelevelofnoise,themoreitsinterferencewiththespeechrecognition,thatis,thelessthevalueofd′.

  • 标签: IMPULSE traffic NOISE deter POSSIBILITY mined
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  • 简介:Amethodofdrawingcolorspectrogramofspeechbyusingmicrocomputerisdescribedinthispaper,andreferredtothemetodofdrawingspectrogrambycomputer.Withthesoftwareandnoadditionanyotheraqripment.,wecandrawcolorthree-dimensionspectrogram(orblack-whitespectrogramwith-outcolormonitor),anditissimilartospectrogramofsonagrapher.

  • 标签: drawing monitor CONTOUR BRIGHT absolute satisfactory
  • 简介:<正>DistinguishedVice-MinisterLiJinjun,Ladiesandgentlemen,friends,ItisadelightfuleventforallofustorenewtheMOUbetweenFESandCAFIUfortheninethtime.Yearsofcooperationandfruitfulresultsareworthcelebrating.Foralongperiodoftime,thetwoorganizationshavebeenmakingeffortstoputthethoughtsofDengXiaopengandWillyBrandtintopractice,namely,thethoughtsofhavingdialogueandenhancingmutualunderstandingwhileputting

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  • 简介:<正>RespectedPresidentBeck,Respectedguests,Ladies,gentlemen,friends,IamdelightedtosigntheMemorandumofUnderstandingonCooperationbetweenCAFIUandFESwithPresidentBeckheretoday.ThisisanimportantmomentinthehistoryoftherelationsbetweenCAFIUandFES,whichsignifiesthatthesoundcooperationbetweenbothsideswillturn

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