Buscar
Mostrando ítems 1-10 de 12
Glottal spectrum based inverse filtering
(ISCA, 2003)
Contribución a congreso / Biltzarrerako ekarpena,
In this paper a new inverse filtering technique for the time-domain estimation of the glottal excitation is presented. This approach uses the DAP modeling for the vocal tract characterization, and a spectral model for the ...
Multichannel blind deconvolution of impulsive signals
(2005)
Contribución a congreso / Biltzarrerako ekarpena,
In this communication, the problem of blind deconvolution of transient, impulsive signals in a multichannel environment
is addressed. This kind of signals arise naturally, or are used
as external excitation, in many ...
Analysis and synthesis of vibrato in lyric singers
(2002)
Contribución a congreso / Biltzarrerako ekarpena,
In this paper two aspects of the vibrato signal characterisation are
presented. First, an analysis method, which breaks down the musical
signal into its different partials, and decomposes them into two
separate ...
Unified analysis of glottal source spectrum
(ISCA, 2003)
Contribución a congreso / Biltzarrerako ekarpena,
The spectral study of the glottal excitation has traditionally
been based on a single time-domain mathematical model of
the signal, and the spectral dependence on its time domain
parameters. Opposite to this approach, ...
Two methods for nonparametric spectrum peak discrimination
(2002)
Contribución a congreso / Biltzarrerako ekarpena,
The conventional DFT-oriented nonparametric
interpolation methods, based on time windowing and the
DTFT envelope curve resampling (zero padding, Chirp-z
[1], frequency scale distortion [2], etc.), can improve the
spectrum ...
A novel PLL architecture
(2000)
Contribución a congreso / Biltzarrerako ekarpena,
A novel phase-locked loop scheme is
proposed in this paper, whose main distinguishing
features are infinite hold-in range, pull-out range
fractionally constant and also a ripple fractionally
constant. To this end, it ...
Design of low-cost smart accelerometers
(Universitat Politècnica de Catalunya, 2005)
Contribución a congreso / Biltzarrerako ekarpena,
The goal of this project is to design a low-cost smart accelerometer, making use of a piezoelectric
element as basic sensing material, and adding a
mixed-mode conditioning circuit.
Computation of greatest common divisor for the blind deconvolution of transient impulsive signals
(Universitat Politècnica de Catalunya, 2005)
Contribución a congreso / Biltzarrerako ekarpena,
We propose a new blind deconvolution method for transient impulsive signals in a single input
– multiple output (SIMO) system. The method
exploits the data redundancy inherent to SIMO
multichannel systems to obtain an ...
Sensing in coin discriminators
(IEEE, 2007)
Contribución a congreso / Biltzarrerako ekarpena,
This paper describes the technologies used in coin
discriminator devices, stressing the improvements and novel
mechanisms introduced by the authors in the past few years as a
result of the cooperation with one leading ...
A novel design method for phase-locked loops of any order and type
(IEEE, 2006)
Contribución a congreso / Biltzarrerako ekarpena,
In this paper a novel approach to the design of PLLs is
presented, which can be used regardless of their Order and Type.
The method stems from the fact that high-frequency poles in the
loop filter determine filtering ...