简介:虽然AMD公司近几年的发展速度让英特尔公司备感压力.但AMD在笔记本电脑平台上给对手的压力远没有DIY市场上明显.在笔记本电脑平台上,英特尔还是绝对的王者。究其原因.正是因为相对于英特尔集成处理器.无线网卡和显卡的迅驰计算平台,AMD的处理器显出了单兵作战的势单力薄。为了改变这种尴尬境地,AMD在近日推出了白金汉平台。”BetterbyDesign”计划,俗称白金汉,AMD的这个平台构成和迅驰平台不同.其包括AMD的处理器.ATi或nVIDIA显卡和Broadcom.Airgo、Atheros、RealTek等的无线网卡三部分,
简介:作为索尼NWZ-S736F简化版本的NWZ-E436F承继了索尼的精工造诣,功能实用,支持长达约45小时音乐播放或约8小时视频播放,续航能力表现出众。
简介:Inthispaper,aneffectiveandrobustactivespeechdetectionmethodisproposedbasedonthe1/fprocesstechniqueforsignalsundernon-stationarynoisyenvironments.TheGaussian1/fprocess,amathematicalmodelforstatisticallyself-similarradomprocessesbasedonfractals,isselectedtomodelthespeechandthebackgroundnoise.AnoptimalBayesiantwo-classclassifierisdevelopedtodiscriminatethembytheir1/fwaveletcoefficientswithKarhunen-Loeve-typeproperties.Multipletemplatesaretrainedforthespeechsignal,andtheparametersofthebackgroundnoisecanbedynamicallyadaptedinruntimetomodelthevariationofboththespeechandthenoise.Inourexperiments,a10-minutelongspeechwithdifferenttypesofnoisesrangingfrom20dBto5dBistestedusingthisnewdetectionmethod.Ahighperformancewithover90%detectionaccuracyisachievedwhenaverageSNRisabout10dB.