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1微软的TTS语音引擎概述Microsoft Speech SDK提供了一套关于语音处理的应用程序编程接口SAPI(Speech Application Pro-gramming Interface)。SAPI实现了文字到语音的转换和语音识别的方法。语言引擎通过DDI层(设备驱动接口)和SAPI进行交互,应用程序通过API层与SAPI进行通信。通过使用这些API,用户可以快速开发在语音识别和语音合成上面的应用程序。 相似文献
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针对基层气象台站天气预警信息发布不及时、语音质量不高的情况,开发一种原理简单、可靠耐用的基于TTS语音合成技术的气象预警信息语音合成系统。介绍了在.NET平台中,采用C#语言,对通过多种方式进行分析、评估而生成的气象预警信息文件进行监控,然后利用TTS语音合成技术实现气象预警信息从文本状态转化为声音信息,最后自动生成为气象预警音频文件,并通过GSM/CDMA/3G网络等,发送预警信息到用户手机、终端报警器和农村信息机的具体过程。该系统能够及时监控服务器中预警文件的生成并进行文字和声音报警,提醒值班人员及时发现预警信息,予以修改订正,并转化为声音文件通过现有各种预警发布方式及时发布。系统已于2012年汛期在益阳市所辖县气象局实现业务运行,运行近两年来,系统工作稳定,不但提高了语音合成质量,同时更加有效地减轻了预报服务人员工作量,提高了气象预警发布时效,在气象预警发布工作中发挥了重要作用。 相似文献
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气象灾害农村预警发布系统 总被引：4，自引：0，他引：4
介绍了基于中国移动GSM/GPRS网络技术,利用现有的气象短信发布系统和农村大喇叭基础设施,实现农村灾害预警发布的快速响应,解决灾害预警信息传递葺的"最后一公里"问题.此系统具有五大技术特点:1、利用GIS系统,确定预警区域,实现预警区域精细化服务,提高灾害预警发布时效;2、通过TTS技术,实现文本短信的语音转换;3、利用数字签名技术,实现预警信息发布的安全检查,确保信息播放的安全性;4、开发了预警系统的语音回拨功能;5、利用GPRS通讯技术,实现终端设备状态的远程监控,提高设备维护的效率.河北省目前拥有5万左右行政村,利用该系统以200条/秒发布预警信息,仅需4.2分钟可覆盖全省近五千万农村人口,比单一短信方式传播预警信息缩短近34个小时. 相似文献
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1 前言 黑龙江省县级121气象语音系统采用的语音处理卡是国产五岳鑫TW8V-ID八线主叫识别语音卡,它是在TW8V基础上发展起来的新型电话语音卡.它采用标准程控机模块厚膜电,其母板采用全数字化电路设计,工作性能稳定可靠,避免了已往的缺陷,使TW8V-ID的整体性能有了质的提高,其电话线接口指标安全达到邮电部入网规范.它采用的软件是在Windows 95操作系统VC++6.0集成环境下开发的(包括TW 8V ID 121系统软件,YYHC语音合成软件),并且已经在30多个台站安装运行. 相似文献
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9210工程投入业务使用后,各气象台使用单向站或双向站可接收到大量的气象信息,包括全国各气象台站发布的24h城镇预报.同时我区部分气象台有双顺达121语音答询系统,利用现有的网络资源,把单向站或双向站接收到的24h城镇预报报文转换为121语音文本文件,再通过双顺达121语音答询系统提供的文本转语音功能,将语音文本文件转换为121指定信箱的声询语音,这样可省去每天由专人编辑121语音的烦琐工作,框图见图1. 相似文献
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目前气象信息传输监视工作主要依靠人工拨号辅助发送短信的方式将异常信息通知到台站,该方式的特点是对多个台站串行通知,及时性不足。介绍一种基于IMS的智能语音通知系统的设计与实现过程,包括系统硬件架构、软件系统设计。与基于语音板卡的方案相比,硬件架构以多媒体交换机为核心,以移动IMS为支撑,实现了TTS 4路并行转换、30路语音通道并发外呼;软件系统采用B/S和C/S相结合的方式来设计：C/S负责气象通信业务中异常信息的采集和语音通知的发送,B/S负责语音信息的显示、统计和分析。应用结果表明,该系统运行稳定可靠,体现了智能语音告警通知的优势。 相似文献
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我局从1999～2003年,测报工作连续4年未出现错情,在此期间共有1个250个班,9个百班无错通过上级业务部门验收.在仪器保管、使用、维护上符合要求,对外报送的各种表、簿都能做好出门合格. 相似文献
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The impact of high resolution modern vegetation cover on the West African climate is examined using the International Centre for Theoretical Physics Regional Climate Model implementing the NCAR Community Land Model. Two high resolution 25 km long-term simulations driven by the output from a coarser 50-km resolution simulation are performed for the period 1998–2010. One high resolution simulation uses an earlier and coarser-resolution version of plant functional type distribution and leaf area index, while the other uses a more recent, higher-quality, and finer-resolution version of the data. The results indicate that the new land cover distribution substantially alters the distribution of temperature with warming in Central Nigeria, northern Gulf of Guinea and part of the Sahel due to the replacement of C4 grass with corn; and cooling along the coastlines of the Gulf of Guinea and in Central Africa due to the replacement of C4 grass with tropical broadleaf evergreen trees. Changes in latent heat flux appear to be largely responsible for these temperature changes with a net decrease (increase) in regions of warming (cooling). The improved land cover distribution also results in a wetter monsoon season. The presence of corn tends to favor larger precipitation amounts via more intense events, while the presence of tropical broadleaf evergreen trees tends to favor the occurrence of both more intense and more frequent events. The wetter conditions appear to be sustained via (1) an enhanced soil moisture feedback; and (2) elevated moisture transport due to increased low-level convergence in regions south of 10N where the most substantial land cover differences are present. Overall the changes induced by the improved vegetation cover improve, to some extent, the performance of the high resolution regional climate model in simulating the main West African summer monsoon features. 相似文献
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由中国历史气候记录对季风导致唐朝灭亡说的质疑 总被引：1，自引：0，他引：1
张德二 《气候变化研究进展》2008,4(2):126-130
2007年1月4日杂志发表了Yancheva等10人的题为"Influence of the intertropical convergence zone on the East-Asian monsoon"(热带辐合带对东亚季风的影响)的论文[1],这是德国波兹坦地学研究中心气候动力与沉积学科的主管豪格(G.H.Haug)率领的科研小组的一项成果,认为是季风的变化引起的长期干旱导致了唐朝的灭亡. 相似文献
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Summary ?Some features of the climate system that can be considered predictors of the onset and end of the convective season over
the Amazon were identified using one-month lag correlations and field composites. The fields analyzed were sea surface temperature
(SST), outgoing long-wave radiation (OLR), vertical velocity and upper tropospheric winds.
Warm (cold) anomalies in the SST in the tropical North Atlantic and the Caribbean Sea tend to be associated with delayed (early)
onsets. Likewise, there is a tendency towards a delayed (early) end of the convective season with cold (warm) anomalies in
these ocean regions. In addition, the SST in the cold tongue region of the equatorial Pacific is negatively, though weakly
correlated with the onset date. The signal of this SST is more evident in the case of the end date, which is earlier with
respect to its mean date in most of El Ni?o cases.
The convective activity intensity itself conditions the onset and the end of the convective season, as it is evidenced by
the behavior of the OLR and the vertical velocity fields. The more (less) intense the convective activity over South America
during the preceding month, the earlier the onset and the later the end of the convective season on the Amazon region.
The prediction of the onset and end dates of the convective season in the Amazon region was explored using a simple multiple
regression technique based on the variables that have shown precursor signals with respect to these dates. The correlation
coefficient between the predicted and the observed onset date is 0.81, and in the case of the end date, it is 0.76. The skill
to predict early, delayed and normal categories was high, since in more than two thirds of the cases the category was successfully
predicted, and there were no predictions of categories opposed to those observed.
Received July 23, 2001; revised February 22, 2002; accepted April 26, 2002 相似文献
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Comparing the theoretical versions of the Beaufort scale, the T-Scale and the Fujita scale 总被引：1，自引：0，他引：1
G. Terence Meaden S. Kochev L. Kolendowicz A. Kosa-Kiss Izolda Marcinoniene Michalis Sioutas Heino Tooming John Tyrrell 《Atmospheric Research》2007,83(2-4):446-449
2005 is the bicentenary of the Beaufort Scale and its wind-speed codes: the marine version in 1805 and the land version later. In the 1920s when anemometers had come into general use, the Beaufort Scale was quantified by a formula based on experiment. In the early 1970s two tornado wind-speed scales were proposed: (1) an International T-Scale based on the Beaufort Scale; and (2) Fujita's damage scale developed for North America. The International Beaufort Scale and the T-Scale share a common root in having an integral theoretical relationship with an established scientific basis, whereas Fujita's Scale introduces criteria that make its intensities non-integral with Beaufort. Forces on the T-Scale, where T stands for Tornado force, span the range 0 to 10 which is highly useful world wide. The shorter range of Fujita's Scale (0 to 5) is acceptable for American use but less convenient elsewhere. To illustrate the simplicity of the decimal T-Scale, mean hurricane wind speed of Beaufort 12 is T2 on the T-Scale but F1.121 on the F-Scale; while a tornado wind speed of T9 (= B26) becomes F4.761. However, the three wind scales can be uni-fied by either making F-Scale numbers exactly half the magnitude of T-Scale numbers [i.e. F′half = T / 2 = (B / 4) − 4] or by doubling the numbers of this revised version to give integral equivalence with the T-Scale. The result is a decimal formula F′double = T = (B / 2) − 4 named the TF-Scale where TF stands for Tornado Force. This harmonious 10-digit scale has all the criteria needed for world-wide practical effectiveness. 相似文献
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准两年振荡对大气中微量气体分布的影响 总被引：11，自引：5，他引：6
NCAR的包含化学、辐射、动力相互作用的两维模式（SOCRATES）移植回国后进行了初步的模拟试验,用以研究某些对环境问题重要的微量气体的化学、辐射、动力传输过程。在不考虑极地平流层云和气溶胶表面非均相化学等情况下,模式积分多年,计算结果稳定,模拟的风场、温度场显示出正常的季节变化,模拟的微量气体分布与卫星实测资料对照,结果也比较一致。为了探讨热带平流层风场的准两年周期振荡（QBO）对平流层微量气体分布的影响,我们做了QBO强迫的数值试验,即在模式中加入QBO强迫,并与不考虑QBO强迫的模拟结果对比。结果表明,QBO与其相关的次级环流所引起动力输送的变化,使平流层微量气体分布发生变化。 相似文献
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Chunguang CUI Wen ZHOU Hao YANG Xiaokang WANG Yi DENG Xiaofang WANG Guirong XU Jingyu WANG 《大气科学进展》2023,40(4):711-724
Here, we analyze the characteristics and the formation mechanisms of low-level jets(LLJs) in the middle reaches of the Yangtze River during the 2010 mei-yu season using Wuhan station radiosonde data and the fifth generation of the European Centre for Medium-Range Weather Forecasts(ERA5) reanalysis dataset. Our results show that the vertical structure of LLJs is characterized by a predominance of boundary layer jets(BLJs) concentrated at heights of 900–1200 m.The BLJs occur most frequently at 230... 相似文献
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流场配置及地形对西南低涡形成的动力作用 总被引：10，自引：8，他引：10
本文采用定常二层模式讨论较小地形及高、低层流场配置对西南低涡形成的动力作用。指出了西南低涡的形成是与盆地、河谷以及其上气流分层有关的一种定常态.在上、下为西风分层时期,低层的浅薄暖湿西风有利于西南低涡的形成.在上、下为东、西风分层时期,上层浅薄东风亦有利于西南低涡的形成.小型的凸起山脉对西南低涡的形成没有作用. 相似文献