Sciweavers

ICASSP
2008
IEEE
14 years 2 months ago
Doppler-variant modeling of the vocal tract
A common technique to deploy linear prediction to nonstationary signals is time segmentation and local analysis. In [1], the temporal changes of linear prediction coefficients (L...
Axel Heim, Uli Sorger, Florian Hug
ICASSP
2008
IEEE
14 years 2 months ago
An improved SNR estimator for speech enhancement
In this paper, we propose an MMSE a priori SNR estimator for speech enhancement. This estimator has similar benefits to the well-known decision-directed approach, but does not req...
Yao Ren, Michael T. Johnson
ICASSP
2008
IEEE
14 years 2 months ago
Polyphase speech recognition
We propose a model for speech recognition that consists of multiple semi-synchronized recognizers operating on a polyphase decomposition of standard speech features. Specifically...
Hui Lin, Jeff Bilmes
ICASSP
2008
IEEE
14 years 2 months ago
Universal switching portfolios under transaction costs
In this paper, we consider online (sequential) portfolio selection in a competitive algorithm framework under transaction costs. We construct a sequential algorithm for portfolio ...
Suleyman Serdar Kozat, Andrew C. Singer
ICASSP
2008
IEEE
14 years 2 months ago
Speech enhancement using a pitch predictive model
In this paper we present two new methods for speech enhancement based on the previously publised ne pitch model (FPM) for voiced speech. The rst method (FPM-NE) uses the FPM to pr...
Luis Buera, Jasha Droppo, Alex Acero
ICASSP
2008
IEEE
14 years 2 months ago
Sentence segmentation and punctuation recovery for spoken language translation
Sentence segmentation and punctuation recovery are critical components for effective spoken language translation (SLT). In this paper we describe our recent work on sentence segme...
Matthias Paulik, Sharath Rao, Ian R. Lane, Stephan...
ICASSP
2008
IEEE
14 years 2 months ago
OFDM for underwater acoustic communications: Adaptive synchronization and sparse channel estimation
A phase synchronizationmethod, which provides non-uniform frequency offset compensation needed for wideband OFDM [1], is coupled with low-complexity channel estimation in the time...
Milica Stojanovic
ICASSP
2008
IEEE
14 years 2 months ago
Overlapped speech detection for improved speaker diarization in multiparty meetings
State-of-the-art speaker diarization systems for meetings are now at a point where overlapped speech contributes significantly to the errors made by the system. However, little i...
Kofi Boakye, B. Trueba-Hornero, Oriol Vinyals, Ger...
ICASSP
2008
IEEE
14 years 2 months ago
LSF mapping for voice conversion with very small training sets
To make voice conversion usable in practical applications, the number of training sentences should be minimized. With traditional Gaussian mixture model (GMM) based techniques sma...
Elina Helander, Jani Nurminen, Moncef Gabbouj