Sciweavers

ICASSP
2009
IEEE
14 years 6 months ago
An analytical approach to sound field reproduction with a movable sweet spot using circular distributions of loudspeakers
Sound field reproduction methods like higher order Ambisonics which are based on orthogonal expansions always introduce a limitation of the spatial bandwidth of the secondary sou...
Jens Ahrens, Sascha Spors
ICASSP
2009
IEEE
14 years 6 months ago
Compressive sensing for sparsely excited speech signals
Compressive sensing (CS) has been proposed for signals with sparsity in a linear transform domain. We explore a signal dependent unknown linear transform, namely the impulse respo...
Thippur V. Sreenivas, W. Bastiaan Kleijn
ICASSP
2009
IEEE
14 years 6 months ago
A new stochastic estimator for tremor frequency tracking
An important parameter in analysis of physiological tremor is the diagnosis and study of neurological disorders. The instantaneous tremor frequency (ITF) is an important parameter...
Alp Kucukelbir, Azadeh Kushki, Konstantinos N. Pla...
ICASSP
2009
IEEE
14 years 6 months ago
Genre effects on automatic sentence segmentation of speech: A comparison of broadcast news and broadcast conversations
We investigate genre effects on the task of automatic sentence segmentation, focusing on two important domains – broadcast news (BN) and broadcast conversation (BC). We employ a...
Jáchym Kolár, Yang Liu, Elizabeth Sh...
ICASSP
2009
IEEE
14 years 6 months ago
Adaptive quickest change detection with unknown parameter
Quickest detection of an abrupt distribution change with an unknown time varying parameter is considered. A novel adaptive approach is proposed to tackle this problem, which is sh...
Chengzhi Li, Huaiyu Dai, Husheng Li
ICASSP
2009
IEEE
14 years 6 months ago
Particle filtering for Quantized Innovations
In this paper, we re-examine the recently proposed distributed state estimators based on quantized innovations. It is widely believed that the error covariance of the Quantized In...
Ravi Teja Sukhavasi, Babak Hassibi
ICASSP
2009
IEEE
14 years 6 months ago
Discriminative training of hierarchical acoustic models for large vocabulary continuous speech recognition
In this paper we propose discriminative training of hierarchical acoustic models for large vocabulary continuous speech recognition tasks. After presenting our hierarchical modeli...
Hung-An Chang, James R. Glass
ICASSP
2009
IEEE
14 years 6 months ago
Joint reconstruction of compressed multi-view images
This paper proposes a distributed representation algorithm for multi-view images that are jointly reconstructed at the decoder. Compressed versions of each image are first obtain...
Xu Chen, Pascal Frossard
ICASSP
2009
IEEE
14 years 6 months ago
Automatic named identification of speakers using diarization and ASR systems
In this paper, we consider the extraction of speaker identity from audio records of broadcast news without a priori acoustic information about speakers. Using an automatic speech ...
Vincent Jousse, Simon Petit-Renaud, Sylvain Meigni...
ICASSP
2009
IEEE
14 years 6 months ago
Active learning for semi-supervised multi-task learning
We present an algorithm for active learning (adaptive selection of training data) within the context of semi-supervised multi-task classifier design. The semi-supervised multi-ta...
Hui Li, Xuejun Liao, Lawrence Carin