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
407 篇 期刊文献
4 篇 学位论文
1 册 图书

馆藏范围

2,458 篇 电子文献
0 种 纸本馆藏

日期分布

学科分类号

602 篇 工学
- 443 篇 电气工程
- 131 篇 计算机科学与技术...
- 108 篇 信息与通信工程
- 79 篇 电子科学与技术（可...
- 24 篇 软件工程
- 23 篇 生物医学工程（可授...
- 21 篇 控制科学与工程
- 19 篇 仪器科学与技术
- 7 篇 机械工程
- 7 篇 船舶与海洋工程
- 5 篇 材料科学与工程（可...
- 4 篇 交通运输工程
- 3 篇 力学（可授工学、理...
- 3 篇 测绘科学与技术
- 3 篇 石油与天然气工程
- 3 篇 网络空间安全
- 2 篇 光学工程
235 篇 理学
- 204 篇 物理学
- 16 篇 系统科学
- 14 篇 生物学
- 4 篇 数学
- 3 篇 化学
- 2 篇 地球物理学
- 2 篇 统计学（可授理学、...
52 篇 医学
- 43 篇 临床医学
- 10 篇 特种医学
- 5 篇 基础医学(可授医学...
14 篇 管理学
- 14 篇 管理科学与工程(可...
10 篇 文学
- 5 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 教育学
2 篇 艺术学
1 篇 法学

主题

2,458 篇 linear predictiv...
771 篇 speech coding
701 篇 speech analysis
545 篇 speech synthesis
409 篇 bit rate
402 篇 speech recogniti...
347 篇 speech processin...
323 篇 filters
278 篇 frequency
267 篇 testing
252 篇 vocoders
238 篇 vector quantizat...
236 篇 speech enhanceme...
224 篇 quantization
213 篇 predictive model...
201 篇 signal processin...
182 篇 speech
182 篇 cepstral analysi...
179 篇 signal synthesis
177 篇 signal analysis

机构

32 篇 school of electr...
23 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

2,284 篇 英文
167 篇 其他
4 篇 中文
3 篇 土耳其文

检索条件"主题词=linear predictive coding"

共 2458 条记录，以下是2381-2390 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：

Objective speech quality evaluation of narrowband LPC vocoders

Objective speech quality evaluation of narrowband LPC vocode...

引用

International Conference on Acoustics, Speech, and Signal Processing (ICASSP)

作者： R. Viswanathan W. Russell J. Makhoul Bolt Beranek and Newman Inc. Cambridge Mass. Bolt Beranek and Newman 슠Inc. Cambridge MA USA

Several methods are presented for the objective speech quality evaluation of narrowband LPC vocoders, based on a framework that we proposed at the 1976 ICASSP conference. In each method, the error in short-term spectral behavior between vocoded speech and the original is computed once every 10 ms. These errors are appropriately weighted and averaged over an utterance to produce a single objective score. Several short-term error measures, and time-weighting and averaging techniques are investigated. We evaluate the objective methods by correlating the resulting objective scores with formal subjective speech quality judgments. High correlations obtained indicate the usefulness of these methods.

关键词： Speech analysis Narrowband linear predictive coding Vocoders Speech synthesis Nonlinear filters Quality assessment Humans Fasteners Performance evaluation

来源：评论

学校读者我要写书评

暂无评论

Towards a variable frame rate speech transmission system with frame selection by time-domain segmentation - a status report

Towards a variable frame rate speech transmission system wit...

引用

International Conference on Acoustics, Speech, and Signal Processing (ICASSP)

作者： W. Hess J. Heiler Lehrstuhl für Datenverarbeitung Technische Universität München Munich Germany

The results of a time domain segmentation algorithm are applied to a variable frame rate (VFR) transmission system. Three speech signal parameters (short-term absolute average of the speech signal, absolute average of the differenced signal, and the ratio of these two) are measured pitch-synchronously and interpolated to short frames of 5 to 10 ms duration. From these frames, a distance measure is evaluated leading towards a "segment length function" which indicates the time distance from a given frame to exceed a parameter change threshold. This function is directly converted into a local interval sequence for the frames of a speech transmission system. The procedure has been successfully applied to a transmission system which uses a pitch-synchronous time-domain Karhunen-Loève expansion (KLE) of the speech signal.

关键词： Time domain analysis Synthesizers Length measurement Time measurement Fluid flow measurement Quantization Speech synthesis Performance analysis Interpolation linear predictive coding

来源：评论

学校读者我要写书评

暂无评论

linear prediction techniques in the Walsh spectral domain for speech analysis and synthesis

Linear prediction techniques in the Walsh spectral domain fo...

引用

International Conference on Acoustics, Speech, and Signal Processing (ICASSP)

作者： M. Ashouri A. Constantinides Department of Electrical Engineering Imperial College of Science and Technology London UK

A method for LPC analysis in a transformed domain (LPCTD) has been developed theoretically and studied experimentally in the Walsh-Hadamard domain (LPCWHD) for low-bit- rate coding of speech signals . Speech signals in the Walsh-Hadamard domain have been modelled by their largest variance coefficients and a few prediction coefficients which represent the remaining coefficients. Determination of the prediction coefficients has been based on the correlation between the spectral coefficients. Intelligible speech at bit-rates of 8 kb/s and 4 kb/s was achieved when 16 and 64 point Walsh-Hadamard transforms were used, respectively. At the latter bit-rate the quality was significantly improved when unvoiced sounds were coded seperately by their largest variance coefficients. The main advantage of LPCWHD system is its simplicity which can lead to a far less complex implementation than that of vocoder systems.

关键词： Speech analysis Speech synthesis Speech processing linear predictive coding Signal synthesis Speech coding predictive models Time domain analysis Educational institutions Analysis of variance

来源：评论

学校读者我要写书评

暂无评论

An error formula for iterative prefiltering frequency estimates

An error formula for iterative prefiltering frequency estima...

引用

International Conference on Acoustics, Speech, and Signal Processing (ICASSP)

作者： F. Landolf Department of Defense Washington D.C. DC USA

来源：评论

学校读者我要写书评

暂无评论

Speech generation through waveform synthesis

Speech generation through waveform synthesis

引用

International Conference on Acoustics, Speech, and Signal Processing (ICASSP)

作者： M. Baumwolspiner Bell Telephone Laboratories Holmdel New Jersey

This paper presents a time domain technique for the generation of speech which offers significant advantages over current formant synthesis and linear predictive coder (LPC) techniques. A set of basis functions in conjunction with a time-compression (and expansion) operation is shown to span the parameter space of the vocal tract model. The relationship between these basis functions and the formant synthesis parameters is derived and graphically illustrated. The 'waveform synthesis' technique is particularly well suited for microprocessor implementation and as shown in the paper two D-A converters in conjunction with a standard microprocessor and associated ROM, RAM and I/O can be used to implement this technique.

关键词： Speech synthesis Microprocessors linear predictive coding Hardware Signal synthesis Read only memory Read-write memory Synthesizers Laplace equations Telephony

来源：评论

学校读者我要写书评

暂无评论

Providing channel error protection for a 2400 bps linear predictive coded voice system

Providing channel error protection for a 2400 bps linear pre...

引用

International Conference on Acoustics, Speech, and Signal Processing (ICASSP)

作者： J. Fussell B. Abzug P. Boudra M. Cowing Fort George G. Meade Maryland

The U.S. Government has developed a real-time 2400 bps linear predictive Coded (LPC) voice algorithm which was designed to provide maximum intelligibility and quality within the time and accuracy limitations imposed by modern high-speed minicomputers. The algorithm which resulted provides excellent intelligibility and quality when transmitted over an ideal channel. However, the speech is significantly degraded in an error environment. This paper describes several techniques for reducing the effect of channel bit errors on the synthesized speech. These techniques cause no measurable degradation of the LPC speech transmitted over an error-free channel and they require less than a one percent increase in computer execution time.

关键词： Protection linear predictive coding Computer errors Error correction codes Speech synthesis Government Degradation Testing Decoding Block codes

来源：评论

学校读者我要写书评

暂无评论

Evaluation of LPC/CVSD tandem connections

Evaluation of LPC/CVSD tandem connections

引用

International Conference on Acoustics, Speech, and Signal Processing (ICASSP)

作者： T. Barnwell R. Schafer A. Bush School of Electrical Engineering Georgia Institute of Technology Atlanta GA USA

The purpose of this study was to assess the effects of LPC/CVSD tandem connections and to investigate ways of improving performance. In the case of the CVSD-to-LPC connection, the CVSD quantizing noise severely affects the estimate of LPC coefficients, thereby distorting the spectral representation. An averaging technique was shown to reduce the average spectral distance from the noiseless case; however, no statistically significant perceptual advantage was measured. In the LPC-to-CVSD connection, it was found that modest improvements can be measured both in signal-to-noise ratio and perceptually, by modifying the phase in LPC synthetic speech before CVSD coding.

关键词： linear predictive coding Narrowband Decoding Wideband Distortion measurement Noise measurement Speech synthesis Degradation Natural languages Noise reduction

来源：评论

学校读者我要写书评

暂无评论

Estimation of LPC coefficients from speech waveforms degraded by additive random noise

Estimation of LPC coefficients from speech waveforms degrade...

引用

International Conference on Acoustics, Speech, and Signal Processing (ICASSP)

作者： Jae Lim Research Laboratory of Electronics and Department of Elec. Engineering and Comp. Sci. Massachusetts Institute of Technology Cambridge MA USA

Application of a Maximum A Posteriori (MAP) estimation procedure in estimating the LPC coefficients from speech waveforms degraded by additive random noise generally leads to solving a set of non-linear equations which are computationally undesirable. However, an attempt to approximate the true MAP estimation procedure leads to two iterative methods that require solving only sets of linear equations. These two methods have been applied to real speech data degraded by additive white Gaussian noise, and in this paper some preliminary results are discussed.

关键词： Additive noise linear predictive coding Speech enhancement Degradation Background noise Speech analysis Speech synthesis Vectors Equations Bandwidth

来源：评论

学校读者我要写书评

暂无评论

Statistical correlation between objective and subjective measures for speech quality

Statistical correlation between objective and subjective mea...

引用

International Conference on Acoustics, Speech, and Signal Processing (ICASSP)

作者： T. Barnwell A. Bush School of Electrical Engineering Georgia Institute of Technology Atlanta GA USA

A statistical correlation study between 18 objective quality measures and a data base of subjective quality measures from the Paired Acceptability Rating Method (PARM) was done for nine communication systems, including waveform coders, channel vocoders, linear predictive coders, and adaptive predictive coders. The results of this study show which of the candidate objective measures are most effective in predicting the subjective results. The measure which was found to be most effective over all systems was a gain weighted L 2 spectral distance metric which had a correlation coefficient of -.83. Supported by DCA/DCEC via the RADC Post Doctoral Program.

关键词： Cepstral analysis linear predictive coding Filters Distortion measurement Deconvolution Speech analysis Signal analysis Power measurement Frequency measurement Electric variables measurement

来源：评论

学校读者我要写书评

暂无评论

Speech synthesis by linear interpolation of spectral parameters between dyad boundaries

Speech synthesis by linear interpolation of spectral paramet...

引用

International Conference on Acoustics, Speech, and Signal Processing (ICASSP)

作者： C. Shadle B. Atal Bell Telephone Laboratories Inc. Murray Hill NJ USA

Recent work of Olive and Spickenagel has shown that pseudo-area parameters used for LPC synthesis can be linearly interpolated between dyad boundaries without producing excessive distortion in synthetic speech. This study investigates whether such interpolation can be done equally successfully on the power spectrum of the speech waveform. The spectrum is of special interest because speech can be synthesized in real time from spectral parameters on readily available programmable digital filters. Our results show that the distortion introduced by dyadic interpolation of spectrum is perceptually significant but it can be reduced considerably by using an additional point within the dyad boundaries for interpolation. The reasons for good quality of speech synthesized from dyadically-interpolated area parameters were also investigated. It was found that formant frequency movements are reproduced fairly accurately after dyadic interpolation. Formant bandwidths however are not reproduced accurately but the bandwidth errors are not as important subjectively.

关键词： Speech synthesis Interpolation Speech analysis Frequency Band pass filters Vocoders Bandwidth Speech enhancement linear predictive coding Pulse generation

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246页 << < 235 236 237 238 239 240 241 242 243 244 > >>

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：