检索结果-内蒙古大学图书馆

您好，读者！请登录

内蒙古大学图书馆

首页
概况
党建
资源
服务
科研支持
- 论文收录引用证明
- 科技查新
知识产权
档案馆
帮助

咨询与建议

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

您的常用邮箱：*

您的手机号码：*

问题描述：

当前已输入0个字，您还可以输入200个字

全部搜索
期刊论文
图书
学位论文
标准
纸本馆藏
外文资源发现
数据库导航
超星发现

高级检索

时间限定

出版年份：

文献类型

图书期刊文献学位论文多媒体

馆藏选择

电子馆藏纸本馆藏

核心期刊

全部期刊 SCI 收录期刊 SSCI 收录期刊 EI 收录期刊 CSCD 收录期刊 CSSCI 收录期刊

语言

中文英文

文献类型

期刊文献图书学位论文标准纸本馆藏

帮助

文字说明：

T=题名（书名、题名），A=作者（责任者），K=主题词，P=出版物名称，PU=出版社名称，O=机构（作者单位、学位授予单位、专利申请人），L=中图分类号，C=学科分类号，U=全部字段，Y=年（出版发行年、学位年度、标准发布年）

检索规则说明：

AND代表“并且”；OR代表“或者”；NOT代表“不包含”；(注意必须大写,运算符两边需空一格)

检索范例：

范例一：(K=图书馆学 OR K=情报学) AND A=范并思 AND Y=1982-2016
范例二：P=计算机应用与软件 AND (U=C++ OR U=Basic) NOT K=Visual AND Y=2011-2016

分类表

所选分类

>> <<

限定检索结果

文献类型

2,046 篇 会议
429 篇 期刊文献
1 册 图书

馆藏范围

2,476 篇 电子文献
0 种 纸本馆藏

日期分布

学科分类号

624 篇 工学
- 470 篇 电气工程
- 136 篇 计算机科学与技术...
- 113 篇 信息与通信工程
- 83 篇 电子科学与技术（可...
- 25 篇 生物医学工程（可授...
- 24 篇 软件工程
- 22 篇 控制科学与工程
- 19 篇 仪器科学与技术
- 6 篇 机械工程
- 5 篇 材料科学与工程（可...
- 4 篇 测绘科学与技术
- 3 篇 石油与天然气工程
- 3 篇 船舶与海洋工程
- 3 篇 网络空间安全
- 2 篇 力学（可授工学、理...
- 2 篇 光学工程
- 2 篇 交通运输工程
241 篇 理学
- 208 篇 物理学
- 16 篇 系统科学
- 14 篇 生物学
- 5 篇 数学
- 3 篇 化学
- 3 篇 地球物理学
- 2 篇 统计学（可授理学、...
51 篇 医学
- 42 篇 临床医学
- 11 篇 特种医学
- 4 篇 基础医学(可授医学...
14 篇 管理学
- 14 篇 管理科学与工程(可...
9 篇 文学
- 4 篇 外国语言文学
- 2 篇 新闻传播学
3 篇 农学
3 篇 军事学
2 篇 艺术学
1 篇 教育学

主题

2,476 篇 linear predictiv...
778 篇 speech coding
704 篇 speech analysis
550 篇 speech synthesis
413 篇 bit rate
410 篇 speech recogniti...
350 篇 speech processin...
329 篇 filters
281 篇 frequency
270 篇 testing
254 篇 vocoders
241 篇 vector quantizat...
238 篇 speech enhanceme...
228 篇 quantization
215 篇 predictive model...
202 篇 signal processin...
183 篇 speech
183 篇 cepstral analysi...
179 篇 signal synthesis
178 篇 signal analysis

机构

32 篇 school of electr...
24 篇 at and t bell la...
22 篇 bolt beranek and...
19 篇 bell laboratorie...
11 篇 at and t bell la...
10 篇 naval research l...
10 篇 department of el...
10 篇 ntt human interf...
10 篇 lpcs enserg gren...
9 篇 lpcs-enserg gren...
8 篇 centre for commu...
8 篇 signal technolog...
8 篇 department of el...
8 篇 cselt torino
8 篇 acoustics resear...
7 篇 electrical engin...
7 篇 acoustics resear...
7 篇 comsat laborator...
7 篇 central research...
7 篇 inrs-télécommuni...

作者

19 篇 s. cristoloveanu
18 篇 l. rabiner
14 篇 a.m. kondoz
14 篇 j. makhoul
13 篇 t. barnwell
13 篇 p. mermelstein
12 篇 t. moriya
12 篇 b. atal
12 篇 a. gersho
12 篇 p. hedelin
11 篇 g. ghibaudo
11 篇 gray rm
10 篇 a. rosenberg
10 篇 rabiner lr
10 篇 k. ozawa
9 篇 t.p. barnwell
9 篇 p. kabal
9 篇 a. mccree
9 篇 b.g. evans
8 篇 v. viswanathan

语言

2,292 篇 英文
176 篇 其他
4 篇 中文
3 篇 土耳其文

检索条件"主题词=Linear Predictive Coding"

共 2476 条记录，以下是731-740 订阅

全选清除本页清除全部题录导出标记到"检索档案"

详细简洁

排序：

Noise suppression properties of synthesis error optimization

Noise suppression properties of synthesis error optimization

引用

IEEE Workshop on Speech coding Proceedings

作者： K. Lashkari T. Miki DoCoMo Communications Laboratory USA Inc. San Jose CA USA

Analysis-by-synthesis (AbS) speech codecs such as multi-pulse LPC and CELP compute the coefficients of the synthesis filter by minimizing the linear prediction (LP) error and the excitation function by minimizing the closed-loop synthesis error. In the presence of additive noise, the LPC coefficients will be affected by noise, resulting in a synthesized speech with degraded quality. This paper points out the noise advantages of computing both the filter parameters and the excitation function by minimizing the closed-loop synthesis error. By minimizing the synthesis error, the analysis and synthesis stages become more compatible. Furthermore, It is shown that unlike LP-based estimation, minimization of the synthesis error could lead to noise-free filter parameters for uncorrelated (colored) noise. An approach for reducing the synthesis error is presented and simulation results on both synthetic and real speech are given.

关键词： Speech synthesis linear predictive coding Additive noise Colored noise Speech analysis Speech codecs Nonlinear filters Speech enhancement Degradation Error analysis

来源：评论

学校读者我要写书评

暂无评论

Fast software implementation of MPEG advanced audio encoder

Fast software implementation of MPEG advanced audio encoder

引用

International Conference on Digital Signal Processing (DSP)

作者： I. Dimkoviae D. Milovanoviae Z. Bojkoviae PsyTEL Research Belgrade Serbia Faculty of Elcclrical Engineering Belgrade Serbia

An optimized software implementation of a high quality MPEG AAC-LC (low complexity) audio encoder is presented in this paper. The standard reference encoder is improved by utilizing several algorithmic optimizations (fast psycho-acoustic model, new tonality estimation, new time domain block switching, optimized quantizer and Huffman coder) and very careful code optimizations for PC CPU architectures with SIMD (single-instruction-multiple-data) instruction set. The psychoacoustic model used the MDCT filterbank for energy estimation and peak detection as a measure of tonality. Block size decision is based on local perceptual entropies as well as LPC analysis of the time signal. Algorithmic optimizations in the quantizer include loop control module modification and optimized Huffman search. Code optimization is based on parallel processing by replacing vector algebra and math junctions with their optimized equivalents with Intel/sup /spl reg// Signal Processing Library (SPL). The implemented codec outperforms consumer MP3 encoders at 30% less bitrate at the same time achieving encoding times several times faster than real-time.

关键词： Signal processing algorithms Psychoacoustic models Software quality Code standards Psychology Filter bank Energy measurement Entropy linear predictive coding Signal analysis

来源：评论

学校读者我要写书评

暂无评论

An interface protocol component modeling language

An interface protocol component modeling language

引用

Annual IEEE International ASIC/SOC Conference

作者： Chang-Yul Yun Kyoung-Son Jhang Department of Computer Engineering ChungNam National University Taejon South Korea

ISBN: (纸本)0780374940

Reusing IPs requires designers to perform interface protocol related tasks such as writing test benches and designing interface protocol conversion circuits, e.g, wrappers for IPs. The results of those tasks usually include the interface protocol components for the corresponding IPs, similar to bus protocol components of the bus functional models. Interface protocols of most IPs can be abstracted in transactions. This paper presents a transaction-oriented interface protocol description language which models interface protocol components recognizing or executing transactions over the given interface ports. In addition, we describe a target structure of the synthesizable interface protocol component together with its application to an IP wrapper design. The proposed approach not only reduces re-works on the interface protocol components but also enables the methodology that can be called "transaction-based interface design or synthesis".

关键词： Protocols linear predictive coding Circuit synthesis Circuit testing Design engineering Writing Performance evaluation Master-slave Hardware design languages Computer interfaces

来源：评论

学校读者我要写书评

暂无评论

On the relationship between root interpolation and LSP interpolation

On the relationship between root interpolation and LSP inter...

引用

Asilomar Conference on Signals, Systems & Computers

作者： K. Lashkari DoCoMo Communications Laboratory USA Inc. San Jose CA USA

Line spectrum pair (LSP) was first introduced by Itakura (1975) as an alternative representation for the LPC spectral information. It was later found that LSPs have very desirable quantization and interpolation properties. Interpolation of LSPs at the frame boundaries results in a synthesized speech that is smoother and has higher quality. This paper compares the two methods of interpolation: 1) interpolating the LSPs derived from the LPC coefficients vs. 2) computing the LSPs from interpolated roots of the LPC polynomial. Experimental results obtained using four to six second long male and female sentences suggest that these two sets of LSPs are effectively equivalent.

关键词： Interpolation Nonlinear filters Polynomials linear predictive coding Speech synthesis Quantization Dynamic range Codecs Laboratories Signal synthesis

来源：评论

学校读者我要写书评

暂无评论

Spectral analysis of some typical Sino-Tibetan languages with special reference to North East Indian languages

Spectral analysis of some typical Sino-Tibetan languages wit...

引用

International Conference on Signal Processing Proceedings (ICSP)

作者： P.H. Talukdar S.K. Sarma University Science Instrumentation Center Assam India Indian Institute of Technology Guwahati Guwahati Assam India

We have made an attempt to study the spectral characteristics of two North East Indian languages, Assamese and Boro, coming from different genres. We have taken a few words with similar, partially similar, and dissimilar characteristics in their nature of utterance from Assamese and Boro. The spectral analysis revels that both the languages have a high degree of similarity at both voiced and unvoiced regions for words with the same meaning. LPC modeling of the random selection of similar, partially similar and dissimilar phonemes may not provide characteristic features of the two languages, but cepstral coefficient analysis of the LPC modeling may provide important information in studying the linguistic and phonetic distinction of the two languages and, finally, speaker identification and word verification.

关键词： Spectral analysis linear predictive coding Hidden Markov models Speech recognition Artificial neural networks Cepstral analysis Natural languages Speech analysis Instruments Training data

来源：评论

学校读者我要写书评

暂无评论

Spectral distortion in G.729 due to LPC quantization

Spectral distortion in G.729 due to LPC quantization

引用

IEEE (first ITW conference of the year) Information Theory Workshop (ITW)

作者： G. Radha Krishna M. Banerjee B.A. Vani Dept. Of Electrical Comm. Engg. Indian Institute of Technology Chennai India CAD Lab Indian Institute of Science Bangalore India

In the G.729 speech coder, linear predictive coding (LPC) parameters are converted into line spectral frequencies (LSF) and then quantized. Spectral distortion, due to quantization error at various stages is calculate... 详细信息

关键词： linear predictive coding Bandwidth Vector quantization Speech coding Table lookup Distortion measurement Digital signal processing Books Speech processing

来源：评论

学校读者我要写书评

暂无评论

Circular LPC modeling and constant pitch transformation for scalable bit rate, scalable quality speech coding

Circular LPC modeling and constant pitch transformation for ...

引用

IEEE Workshop on Speech coding Proceedings

作者： A.E. Ertan T.P. Barnwell Georgia Institute of Technology Atlanta GA USA

In this paper, circular LPC analysis, a windowless signal modeling method for periodic signals, is re-visited as a high-resolution pitch-synchronous speech spectrum analysis tool for high quality speech coding, and the constant pitch transform is re-introduced as an alternative representation for the (circular) residual signal. This combination results in a parametric speech representation that is uniquely well suited for many speech coding applications. It is shown that circular LPC requires a very accurate pitch period estimation. Thus, both techniques are formulated using an oversampled version of the speech signal for analysis. Experiments show that artifact free speech can be synthesized using the proposed method.

关键词： linear predictive coding Bit rate Speech coding Signal analysis Speech analysis Speech synthesis Signal synthesis Autocorrelation Signal generators Scalability

来源：评论

学校读者我要写书评

暂无评论

Pitch synchronous split-band LPC (PS-SBLPC) vocoder

Pitch synchronous split-band LPC (PS-SBLPC) vocoder

引用

IEEE Workshop on Speech coding Proceedings

作者： C. Sturt S. Villette A.M. Kondoz Centre for Communication Systems Research University of Surrey Guildford Surrey UK

A pitch-synchronous split band LPC (PS-SBLPC) speech coder is proposed. In this new paradigm, harmonic analysis is carried out on individual pitch cycle waveforms (PCWs) rather than using a large window. PCWs are identified using a trapezoidal window search performed on a modified time envelope signal. In order to achieve a fixed rate coder the PCW parameters are jointly quantised using a combined interpolation and quantisation routine. Combining interpolation and quantisation allows for high correlation between successive PCWs to be exploited, without subjecting rapid transitions to time smoothing. During speech synthesis, no interpolation is applied, as parameter smoothing is provided during the quantisation. Simulation results comparing the PS-SBLPC model with the SB-LPC model show that the quality of the PS-SBLPC speech signal is significantly better than that of the split band LPC (SB-LPC). Initial results have shown that quantisation optimisation leads to vast improvements in speech quality during speech transitions.

关键词： linear predictive coding Vocoders Speech synthesis Quantization Interpolation Decoding Speech analysis Low pass filters Smoothing methods Harmonic analysis

来源：评论

学校读者我要写书评

暂无评论

Real-time speech-driven 3D face animation

Real-time speech-driven 3D face animation

引用

International Symposium on 3D Data Processing Visualization and Transmission

作者： Pengyu Hong Zhen Wen T.S. Huang Heung-Yeung Shum Coordinated Science Laboratory University of Illinois Urbana-Champaign USA Beckman Institute University of Illinois Urbana-Champaign USA Microsoft Research Laboratory-Beijing Beijing China

In this paper, we present an approach for real-time speech-driven 3D face animation using neural networks. We first analyze a 3D facial movement sequence of a talking subject and learn a quantitative representation of the facial deformations, called the 3D motion units (MUs). A 3D facial deformation can be approximated by a linear combination of the MUs weighted by the MU parameters (MUPs) - the visual features of the facial deformation. The facial movement sequence synchronizes with a audio track. The audio track is digitized and the audio features of each frame are calculated. A real-time audio-to-MUP mapping is constructed by training a set of neural networks using the calculated audio-visual features. The audio-visual features are divided into several groups based on the audio features. One neural network is trained per group to map the audio features to the corresponding MUPs. Given a new audio feature vector, we first classify it into one of the groups and select the corresponding neural network to map the audio feature vector to MUPs, which are used for face animation. The quantitative evaluation shows the effectiveness of the proposed approach.

关键词： Facial animation Neural networks Speech Shape linear predictive coding Vector quantization Context modeling Cepstral analysis Delay effects Visual databases

来源：评论

学校读者我要写书评

暂无评论

On robust AR speech analysis based on quadratic classifier with heuristically decision threshold

On robust AR speech analysis based on quadratic classifier w...

引用

International Conference on Digital Signal Processing (DSP)

作者： M. Markovic Mathematical Institute SANU Belgrade Serbia

The paper considers a robust recursive procedure for identifying a nonstationary AR speech model based on a quadratic classifier with a heuristic decision threshold. Two versions of the robust procedure with heuristic decision threshold, based on a frame-based quadratic classifier and a quadratic classifier with a sliding training data set, are evaluated and compared through analyzing natural speech signals with voiced and mixed excitation segments. The results obtained show that the considered robust procedure with the quadratic classifier with sliding training data set and heuristic decision threshold achieves more accurate AR speech parameter estimation, provides improved tracking performance, and achieves better discrimination capabilities for possible application in some vowel recognition systems.

关键词： Robustness Speech analysis Training data linear predictive coding Speech coding Parameter estimation Speech enhancement Signal analysis Natural languages Speech recognition

来源：评论

学校读者我要写书评

暂无评论

没有更多数据了...

全选清除本页清除全部题录导出标记到“检索档案”

共248页 << < 70 71 72 73 74 75 76 77 78 79 > >>

检索报告对象比较合并检索0

隐藏清空

合并搜索

回到顶部

执行限定条件

内容：

评分：

请选择保存的检索档案：

请选择收藏分类：

订阅名称：

通借通还

温馨提示：

图书名称：

借书校区：

取书校区：

手机号码：

邮箱地址：

一卡通帐号：

电话和邮箱必须正确填写，我们会与您联系确认。

联系人：

所在院系：

联系邮箱：

联系电话：

内蒙古自治区呼和浩特市赛罕区大学西街235号邮编: 010021

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：