Sciweavers

ICASSP
2011
IEEE
13 years 3 months ago
Scale-dependent analysis of Ionosphere fluctuations
Ionosphere consists of a large complex system whose analysis is of major importance, e.g., for climatology or radiocommunications. Therefore, studying its variations, usually anal...
Stéphane G. Roux, Patrice Abry, Petra Kouck...
ICASSP
2011
IEEE
13 years 3 months ago
Discriminative training for Bayesian sensing hidden Markov models
We describe feature space and model space discriminative training for a new class of acoustic models called Bayesian sensing hidden Markov models (BS-HMMs). In BS-HMMs, speech dat...
George Saon, Jen-Tzung Chien
ICASSP
2011
IEEE
13 years 3 months ago
Frequency domain compensation of spurious sidebands in A/D circuits
In a non-ideal PLL circuit, leakage of the reference signal into the control line produces spurious tones. When the distorted PLL signal is used as a clock signal, it creates spur...
Shang-Kee Ting, Ali H. Sayed
ICASSP
2011
IEEE
13 years 3 months ago
Energy-optimized high performance FFT processor
This paper proposes an ultra low energy FFT processor suitable for sensor applications. The processor is based on R4MDC but achieves full utilization of computational elements. It...
Dongsuk Jeon, Mingoo Seok, Chaitali Chakrabarti, D...
ICASSP
2011
IEEE
13 years 3 months ago
Clustering NMF basis functions using Shifted NMF for monaural sound source separation
Non-negative Matrix Factorization (NMF) has found use in single channel separation of audio signals, as it gives a parts-based decomposition of audio spectrograms where the parts ...
Rajesh Jaiswal, Derry Fitzgerald, Dan Barry, Eugen...
ICASSP
2011
IEEE
13 years 3 months ago
Beamforming design for multi-user two-way relaying with MIMO amplify and forward relays
Relays represent a promising approach to extend the cell coverage, combat the strong shadowing effects as well as guarantee the QoS in dense networks. Among the numerous existing ...
Jianshu Zhang, Florian Roemer, Martin Haardt
ICASSP
2011
IEEE
13 years 3 months ago
Multi-stream spectro-temporal and cepstral features based on data-driven hierarchical phoneme clusters
We propose a method to enhance multi-stream Gabor and MFCC features using data-driven hierarchical phoneme clusters to yield more discriminating posteriors. We take into account d...
Shang-wen Li, Liang-Che Sun, Lin-Shan Lee
ICASSP
2011
IEEE
13 years 3 months ago
Incorporating alignments into Conditional Random Fields for grapheme to phoneme conversion
Conditional Random Fields (CRFs) are a state-of-the-art approach to natural language processing tasks like grapheme-tophoneme (g2p) conversion which is used to produce pronunciati...
Patrick Lehnen, Stefan Hahn, Andreas Guta, Hermann...
ICASSP
2011
IEEE
13 years 3 months ago
Parallel Transformation Network features for speaker recognition
The use of speaker adaptation transforms as features for speaker recognition is an appealing alternative to conventional short-term cepstral features. In general, this kind of met...
Alberto Abad, Jordi Luque, Isabel Trancoso
ICASSP
2011
IEEE
13 years 3 months ago
Classifying soundtracks with audio texture features
Sound textures may be defined as sounds whose character depends on statistical properties as much as the specific details of each individually-perceived event. Recent work has d...
Daniel P. W. Ellis, Xiaohong Zeng, Josh H. McDermo...