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
427 篇 期刊文献
1 册 图书

馆藏范围

2,474 篇 电子文献
0 种 纸本馆藏

日期分布

学科分类号

622 篇 工学
- 468 篇 电气工程
- 136 篇 计算机科学与技术...
- 113 篇 信息与通信工程
- 82 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

2,474 篇 linear predictiv...
779 篇 speech coding
706 篇 speech analysis
550 篇 speech synthesis
412 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...
227 篇 quantization
215 篇 predictive model...
202 篇 signal processin...
184 篇 cepstral analysi...
183 篇 speech
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

2,290 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 2474 条记录，以下是1171-1180 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：

Time-frequency representation based cepstral processing for speech recognition

Time-frequency representation based cepstral processing for ...

引用

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

作者： A.B. Fineberg K.C. Yu Lexicus Division Motorola Palo Alto CA USA

Both linear predictive coding (LPC) and mel scale frequency cepstral coefficient (MFCC) analysis, the most common techniques for speech recognition signal processing, make the assumption that the speech signal is stationary for some analysis window and produce a representation based upon the "stationary" frequency content within the window. This work uses a technique based upon Cohen's (1989) class of generalized time frequency representations (TFR) to produce selected frequency representations that are not based upon an assumption of stationarity. This representation is used in a speech recognition system to produce improved accuracy. The proposed approach requires a kernel design to specify the attributes of the representations. The considerations used for analyzing speech signals and the resulting attributes are discussed. Comparisons with standard analysis techniques are presented. The significant computational requirements are also discussed.

关键词： Time frequency analysis Cepstral analysis Speech processing Speech analysis Signal analysis linear predictive coding Mel frequency cepstral coefficient Speech recognition Signal processing Speech coding

来源：评论

学校读者我要写书评

暂无评论

Intelligibility of speech with filtered time trajectories of spectral envelopes

Intelligibility of speech with filtered time trajectories of...

引用

International Conference on Spoken Language, ICSLP

作者： T. Arai M. Pavel H. Hermansky C. Avendano Oregon Graduate Institute of Science and Technology Portland OR USA

The effect of filtering the time trajectories of spectral envelopes on speech intelligibility was investigated. Since the LPC cepstrum forms the basis of many automatic speech recognition systems, the authors filtered time trajectories of the LPC cepstrum of speech sounds, and the modified speech was reconstructed after the filtering. For processing, they applied low-pass, high-pass and band-pass filters. The accuracy results from the perceptual experiments for Japanese syllables show that speech intelligibility is not severely impaired as long as the filtered spectral components have 1) a rate of change faster than 1 Hz when high-pass filtered, 2) a rate of change slower than 24 Hz when low-pass filtered, and 3) a rate of change between 1 and 16 Hz when band-pass filtered.

关键词： Finite impulse response filter Low pass filters Filtering Band pass filters linear predictive coding Speech processing Cepstral analysis Automatic speech recognition Speech recognition Speech analysis

来源：评论

学校读者我要写书评

暂无评论

Interpolation-based differential vector coding of speech LSF parameters

Interpolation-based differential vector coding of speech LSF...

引用

IEEE Conference and Exhibition on Global Telecommunications (GLOBECOM)

作者： L. Martins da Silva A. Alcaim CETUC Catholic University of Rio de Janeiro Rio de Janeiro Rio de Janeiro Brazil

This paper presents a new strategy to encode the LPC spectral envelope of speech. The proposed scheme uses an interpolation-based differential vector coding of the LSF parameters in order to better track the temporal variations of the speech short-time spectral envelope. Two consecutive sets of LSF parameters are simultaneously encoded during each speech frame. Simulation results show major improvements over techniques that vector quantize a single set of LSF parameters per frame.

关键词： Speech coding linear predictive coding Bit rate Nonlinear filters Interpolation Quantization predictive models Information filtering Information filters Speech analysis

来源：评论

学校读者我要写书评

暂无评论

A new line spectrum pair representation for spectral envelope quantization

A new line spectrum pair representation for spectral envelop...

引用

MILCOM, Military Communications Conference

作者： Won Cheol Lee Myung Jin Bae Information and Telecommunication Department College of Engineering Soongsil University Seoul South Korea

ISBN: (纸本)0780336828

This paper introduces a new parametric formulation for the line spectrum pairs representation. Due to its robustness against to quantization, LSPs are widely utilized as an alternative of the LPC parameters. In the conventional method, the explicit formula having a fixed order has been employed for computing the LSP parameters where the vocal track information is embedded on. Subsequently, the LSP parameters are quantized into a priori assigned number of bits. To provide the flexibility on bit allocation for the LSP parameters, this paper proposes a new explicit LSP representation such that the spectral envelope component is represented in terms of the reduced number of LSPs without causing any major spectral distortions. This invokes the reduction on the bit allocation for the LSP parameters, and provides the ability of quantizing the spectral envelope at a variable bit rate depending on the characteristics of the framed speech. Simulation results are presented to show the validity of the proposed formulation.

关键词： Quantization Speech Bit rate Poles and zeros linear predictive coding Robustness Educational institutions Embedded computing Dynamic range Frequency

来源：评论

学校读者我要写书评

暂无评论

The application of sample-selective LPC method in standard CELP 4800 B/S speech coder

The application of sample-selective LPC method in standard C...

引用

IEEE International Conference on Electronics, Circuits and Systems (ICECS)

作者： M.Z. Markovic Institute of Applied Mathematics and Electronics Belgrade Serbia

The application of the sample-selective LPC method in standard CELP coder, U.S.A. FED STD 1016 4.8 kb/s, in sense of decreasing LPC spectral degradation compared to the standard LPC, methods is considered in the paper. Comparative experimental analysis is done referred to the results of three different spectral measures related to the RMS LOG spectral measure: likelihood ratios, cosh measure and cepstral distance. Presented experimental analysis justify the use of the proposed sample-selective LPC method in standard CELP speech coder.

关键词： linear predictive coding Code standards Robustness Cepstral analysis Speech analysis Speech coding Iterative algorithms Degradation Production systems Mathematics

来源：评论

学校读者我要写书评

暂无评论

Signal modeling for speaker identification

Signal modeling for speaker identification

引用

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

作者： Li Liu Jialong He G. Palm Abteilung Neuroinformatik University of Ulm (EBS) Ulm Germany

A large number of parameters, including pitch, LPCC, /spl Delta/LPCC, PARCOR, MFCC, /spl Delta/MFCC, and residual cepstrum (RCEP) were extracted from speech signals and their effectiveness for text-independent speaker identification was evaluated. In addition, the usefulness of two signal processing techniques, preemphasis and cepstral weighting, was also studied. The VQ-based speaker recognition method with codebooks fine-tuned by LVQ algorithm was used. It was shown that both LPCC and MFCC are effective representations, for smaller number of parameters, LPCC representation performs better but is surpassed by MFCC if the analysis order is larger. Pitch is an independent parameter so that it can be used jointly with other spectral features. In an evaluation experiment, the correct identification rate for 112 male speakers with test utterances of less than one second reached 98.2%.

关键词： Signal processing Cepstral analysis Speech analysis linear predictive coding Speaker recognition Mel frequency cepstral coefficient Cepstrum Speech recognition Signal processing algorithms Equations

来源：评论

学校读者我要写书评

暂无评论

Formant Detection Through Instantaneous-frequency Estimation Using Recursive Least Square Algorithm

Formant Detection Through Instantaneous-frequency Estimation...

引用

International Symposium on Signal Processing and Its Applications (ISSPA)

作者： S. Ghaemmaghami M. Deriche B. Boashash Signal Processing Research Centre Queensland University of Technology Brisbane QLD Australia

来源：评论

学校读者我要写书评

暂无评论

LPC based multispectral compression techniques applied to optical imaging spectrometer instruments

LPC based multispectral compression techniques applied to op...

引用

IEEE International Conference on Image Processing

作者： D. Giunta S. Gonnelli On-board Image and Signal Proc. Section ESA ESTEC Noordwijk Netherlands Vitrociset Space Division On-board Image and Signal Proc. Section ESA ESTEC Noordwijk Netherlands

An internal study has been carried out at ESTEC/WSP (Onboard Image and Signal Processing Section) about compression of synthetic optical multispectral images which will reflect characteristics of future satellites' imagers. The images produced by these instruments are composed by up to 15 bands in the range of 400-1050 nm, with radiometric resolutions of 8-16 bpp and a spatial resolution of around 250-300 m. The aim of this study is to evaluate the effectiveness of a fast and simple onboard data compression process to reduce the amount of data to be transmitted to ground stations or to be stored on the satellites' on-board recorders.

关键词： linear predictive coding Optical signal processing Image coding Satellite broadcasting Spatial resolution Multispectral imaging Instruments Radiometry Image resolution Signal resolution

来源：评论

学校读者我要写书评

暂无评论

A high quality MBE-LPC-FE speech coder at 2.4 kbps and 1.2 kbps

A high quality MBE-LPC-FE speech coder at 2.4 kbps and 1.2 k...

引用

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

作者： Tian Wang Kun Tang Chongxi Feng Department of Electronic Engineering Tsinghua University Beijing China

ISBN: (纸本)0780331923

This paper presents a high quality speech coder based on the multi-band excitation (MBE) model operating at 2.4 kb/s and 1.2 kb/s. The features of this coder mainly focus on two aspects. One is an accurate and reliable pitch estimation and voiced/unvoiced decision algorithm. The other is the efficient quantization of the variable dimension spectral amplitude vector. Besides representing the spectral envelope information using an all-pole model, we also encode error vectors of the spectral amplitude vector at several important positions. Informal listening tests indicate that the speech quality of this coder at 2.4 kb/s is comparable and even superior to the INMARSAT-M IMBE 4.15 kb/s coder. The coder has been implemented in real-time on a single TMS320C31 floating point DSP.

关键词： Bit rate Speech coding Frequency estimation Speech synthesis Quantization Discrete cosine transforms Vectors linear predictive coding Testing Reliability engineering

来源：评论

学校读者我要写书评

暂无评论

An efficient coding of LSP parameters using multiple type frame segmentation

An efficient coding of LSP parameters using multiple type fr...

引用

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

作者： Y.K. Lee K.C. Kim H.S. Lee Information and Technology Laboratory Seoul South Korea Department of Information and Communications Engineering KAIST Seoul South Korea

The transmission of spectral information consumes a large portion of total bit rate in medium-to-low bit rate speech coding. The conventional coding methods of LSP parameters generate redundant spectral information or spectral distortion by the fixed update rate of LSP parameters independent of the order of coefficients and phonetic context. We propose a multiple type frame segmentation (MTFS) method which allows various types of two-dimensional segmentation of speech frames to save the transmission rate of the LSP parameters without increasing the spectral distortion. The intra-frame spectral distortion (IFSD) is defined to measure the spectral distortion of the reconstructed spectrum. The proposed method generates a less distorted spectrum with fewer bits compared with the conventional single type frame segmentation (STFS) method.

关键词： Speech analysis linear predictive coding Bit rate Decoding Distortion measurement Spectral analysis Speech coding Vocoders Signal analysis Data mining

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 << < 114 115 116 117 118 119 120 121 122 123 > >>

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：