2004 International Conference on Signal Processing and Communications, 2004. SPCOM '04.最新文献_第2页

Identifying individuals using ECG beats 利用心电图节拍识别个体

2004 International Conference on Signal Processing and Communications, 2004. SPCOM '04. Pub Date : 2004-12-11 DOI: 10.1109/SPCOM.2004.1458524

Ramaswamy Palaniappan, Shankar M. Krishnan

引用次数: 85

Image denoising and detail preservation by probabilistic models 基于概率模型的图像去噪与细节保留

2004 International Conference on Signal Processing and Communications, 2004. SPCOM '04. Pub Date : 2004-12-11 DOI: 10.1109/SPCOM.2004.1458403

T. Liu, Huiyu Zhou, F. Lin, Y. Pang, Ji Wu

引用次数: 1

Data association for multi target-multi model particle filtering: implicit assignment to weighted assignment 多目标多模型粒子滤波的数据关联:隐式赋值到加权赋值

2004 International Conference on Signal Processing and Communications, 2004. SPCOM '04. Pub Date : 2004-12-11 DOI: 10.1109/SPCOM.2004.1458350

M. Zaveri, U. Desai, S. Merchant

引用次数: 1

Fuzzy based chip level based receiver for direct sequence-code division multiple access communication system 直接序列码分多址通信系统中基于模糊的芯片级接收机

2004 International Conference on Signal Processing and Communications, 2004. SPCOM '04. Pub Date : 2004-12-11 DOI: 10.1109/SPCOM.2004.1458375

S. Panda, S. K. Patra

引用次数: 0

Pronunciation modeling for speech technology 语音技术的发音建模

2004 International Conference on Signal Processing and Communications, 2004. SPCOM '04. Pub Date : 2004-12-11 DOI: 10.1109/SPCOM.2004.1458347

T. Svendsen

{"title":"Pronunciation modeling for speech technology","authors":"T. Svendsen","doi":"10.1109/SPCOM.2004.1458347","DOIUrl":"https://doi.org/10.1109/SPCOM.2004.1458347","url":null,"abstract":"Written text is based on an orthographic representation of words, i.e. linear sequences of letters. Modern speech technology (automatic speech recognition and text-to-speech synthesis) is based on phonetic units representing realization of sounds. A mapping between the orthographic form and phonetic forms representing the pronunciation is thus required. This may be obtained by creating pronunciation lexica and/or rule-based systems for grapheme-to-phoneme conversion. Traditionally, this mapping has been obtained manually, based on phonetic and linguistic knowledge. This approach has a number of drawbacks: i) the pronunciations represent typical pronunciations and will have a limited capacity for describing pronunciation variation due to speaking style and dialectical/accent variations; ii) if multiple pronunciation variants are included, it does not indicate which variants are more significant for the specific application; iii) the description is based on phonetic-knowledge and does not take into account that the units used in speech technology may deviate from the phonetic interpretation; and iv) the description is limited to units with a linguistic interpretation. The paper will present and discuss methods for modeling pronunciation and pronunciation variation specifically for applications in speech technology.","PeriodicalId":424981,"journal":{"name":"2004 International Conference on Signal Processing and Communications, 2004. SPCOM '04.","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124602462","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 11

Genetic algorithm based MVDR beam formation for adaptive nulling 基于遗传算法的MVDR波束形成自适应消零

2004 International Conference on Signal Processing and Communications, 2004. SPCOM '04. Pub Date : 2004-12-11 DOI: 10.1109/SPCOM.2004.1458391

G. Kannan, S. Merchant, U. Desai

引用次数: 0

Time-scaling of speech and music using independent subspace analysis 使用独立子空间分析语音和音乐的时间尺度

2004 International Conference on Signal Processing and Communications, 2004. SPCOM '04. Pub Date : 2004-12-11 DOI: 10.1109/SPCOM.2004.1458408

R. Muralishankar, L. Kaushik, A. Ramakrishnan

{"title":"Time-scaling of speech and music using independent subspace analysis","authors":"R. Muralishankar, L. Kaushik, A. Ramakrishnan","doi":"10.1109/SPCOM.2004.1458408","DOIUrl":"https://doi.org/10.1109/SPCOM.2004.1458408","url":null,"abstract":"We propose a new technique for modifying the time-scale of speech and music using independent subspace analysis (ISA). To carry out ISA, the single channel mixture signal is converted to a time-frequency representation such as spectrogram. The spectrogram is generated by taking Hartley or wavelet transform on overlapped frames of speech or music. We do dimensionality reduction of the autocorrelated original spectrogram using singular value decomposition. Then, we use independent component analysis to get unmixing matrix using JadeICA algorithm. It is then assumed that the overall spectrogram results from the superposition of a number of unknown statistically independent spectrograms. By using unmixing matrix, independent sources such as temporal amplitude envelopes and frequency weights can be extracted from the spectrogram. Time-scaling of speech and music is carried out by resampling the independent temporal amplitude envelopes. We then multiply the independent frequency weights with time-scaled temporal amplitude envelopes. We Sum these independent spectrograms and take inverse Hartley or wavelet transform of the sum spectrogram. The reconstructed time-domain signal is overlap-added to get the time-scaled signal. The quality of the time-scaled speech and music has been analyzed using Modified Bark spectral distortion (MBSD). From the MBSD score, one can infer that the time-scaled signal is less distorted.","PeriodicalId":424981,"journal":{"name":"2004 International Conference on Signal Processing and Communications, 2004. SPCOM '04.","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121318249","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

A new transform for 2-D signal representation (MRT) and some of its properties 一种新的二维信号表示(MRT)变换及其一些性质

2004 International Conference on Signal Processing and Communications, 2004. SPCOM '04. Pub Date : 2004-12-11 DOI: 10.1109/SPCOM.2004.1458423

R. Roy, R. Gopikakumari

引用次数: 25

A new state augmentation for maneuvering targets detection 一种新的机动目标检测状态增强方法

2004 International Conference on Signal Processing and Communications, 2004. SPCOM '04. Pub Date : 2004-12-11 DOI: 10.1109/SPCOM.2004.1458358

H. Khaloozadeh, A. Karsaz

引用次数: 10

A comparison between Alamouti and SVD scheme for OFDM based WLAN system 基于OFDM的WLAN系统中Alamouti方案与SVD方案的比较

2004 International Conference on Signal Processing and Communications, 2004. SPCOM '04. Pub Date : 2004-12-11 DOI: 10.1109/SPCOM.2004.1458489

P. Hernandis, P. Corral, A. C. de Castro Lima

引用次数: 1