Sciweavers

Share
ICASSP
2011
IEEE
8 years 2 months ago
Joint frequency spectral lag representation for cross-frequency modulation analysis in the brain
The concepts of modulation frequency along with modulation spectra are originally encountered in acoustics, speech and audio processing. The modulation spectrum, a function of aco...
Ali Yener Mutlu, Selin Aviyente
ICASSP
2011
IEEE
8 years 2 months ago
Amplitude modulation spectrogram based features for robust speech recognition in noisy and reverberant environments
In this contribution we present a feature extraction method that relies on the modulation-spectral analysis of amplitude fluctuations within sub-bands of the acoustic spectrum by ...
Niko Moritz, Jörn Anemüller, Birger Koll...
TWC
2010
8 years 5 months ago
On the distribution of instantaneous power in single-carrier signals
Abstract-- This paper studies a statistical distribution of instantaneous power in pulse-shaped single-carrier (SC) modulation. Such knowledge is of significant importance to estim...
Makoto Tanahashi, Hideki Ochiai
SPEECH
2011
8 years 5 months ago
Discrimination of speech from nonspeeech in broadcast news based on modulation frequency features
We describe a content based speech discrimination algorithm in broadcast news based on the time-varying information provided by the modulation spectrum. Due to the varying degrees...
Maria E. Markaki, Yannis Stylianou
SPEECH
2011
8 years 5 months ago
Role of modulation magnitude and phase spectrum towards speech intelligibility
In this paper our aim is to investigate the properties of the modulation domain and more specifically, to evaluate the relative contributions of the modulation magnitude and phas...
Kuldip K. Paliwal, Belinda Schwerin, Kamil K. W&oa...
ICIP
2009
IEEE
8 years 8 months ago
FM filters for modulation domain image processing
For the first time, we demonstrate modulation domain image filters that achieve perceptually motivated image processing goals by directly manipulating the FM functions in a multi-...
Chuong T. Nguyen, Patrick A. Campbell, Joseph P. H...
VTC
2010
IEEE
163views Communications» more  VTC 2010»
8 years 8 months ago
Distributed Source-Coding, Channel-Coding and Modulation for Cooperative Communications
Abstract-- In this contribution, we propose a novel Distributed Sourcecoding, Channel-coding and Modulation (DSCM) scheme for cooperative communications. The proposed DSCM scheme i...
Soon Xin Ng, Kai Zhu, Lajos Hanzo
SPEECH
2010
152views more  SPEECH 2010»
8 years 8 months ago
Single-channel speech enhancement using spectral subtraction in the short-time modulation domain
In this paper we investigate the modulation domain as an alternative to the acoustic domain for speech enhancement. More specifically, we wish to determine how competitive the mo...
Kuldip K. Paliwal, Kamil Wójcicki, Belinda ...
INFOCOM
2010
IEEE
8 years 8 months ago
Scalable Modulation for Scalable Wireless Videocast
Abstract— In conventional wireless systems with layered architectures, the physical layer treats all data streams from upper layers equally and apply the same modulation and codi...
Lin Cai, Yuanqian Luo, Siyuan Xiang, Jianping Pan
TWC
2008
101views more  TWC 2008»
8 years 10 months ago
Simplified receiver design for STBC binary continuous phase modulation
Abstract-- Existing space-time codes have focused on multipleantenna systems with linear modulation schemes such as phaseshift keying and quadrature amplitude modulation. Continuou...
L. Xian, R. Punnoose, H. Liu
books