Optimal Golomb-Rice code extension for lossless coding of low-entropy exponentially distributed sources

R Sugiura, Y Kamamoto, N Harada… - IEEE Transactions on …, 2018 - ieeexplore.ieee.org
This paper presents an extension of GolombRice (GR) code for coding low-entropy sources,
which the gap between their entropy and the conventional GR code length gets larger. We …

Progress in LPC-based frequency-domain audio coding

T Moriya, R Sugiura, Y Kamamoto… - … Transactions on Signal …, 2016 - cambridge.org
This paper describes the progress in frequency-domain linear prediction coding (LPC)-
based audio coding schemes. Although LPC was originally used only for time-domain …

Extended-domain Golomb code and symmetry of relative redundancy

R Sugiura, Y Kamamoto, T Moriya - IEICE Transactions on …, 2021 - search.ieice.org
This paper presents extended-domain Golomb (XDG) code, an extension of Golomb code
for sparse geometric sources as well as a generalization of extended-domain Golomb-Rice …

Estimation of the probability distribution of spectral fine structure in the speech source

T Bäckström - Interspeech, 2017 - research.aalto.fi
The efficiency of many speech processing methods rely on accurate modeling of the
distribution of the signal spectrum and a majority of prior works suggest that the spectral …

Shape Control of Discrete Generalized Gaussian Distributions for Frequency-Domain Audio Coding

R Sugiura, Y Kamamoto… - IEEE/ACM Transactions on …, 2019 - ieeexplore.ieee.org
Entropy coding, which is an essential part of audio compression, is always required to
manage the tradeoffs between compression efficiency and computational complexity, and …

Game theoretical method for sum-rate maximization in full-duplex massive MIMO heterogeneous networks

S Yuan, Q Liang - Signal Processing, 2016 - Elsevier
In this paper, we consider Massive MIMO in two-layer Heterogeneous Networks. The system
has a large self-interference and co-channel interference due to operation in full-duplex …

Spectral-envelope-based least significant bit management for low-delay bit-error-robust speech coding

R Sugiura, Y Kamamoto… - 2018 IEEE International …, 2018 - ieeexplore.ieee.org
We have devised a method for bit assignment of quantized frequency spectra aiming at its
use in low-delay bit-error-robust speech compression. The proposed method, least …

Coding and decoding a sound signal by adapting coefficients transformable to linear predictive coefficients and/or adapting a code book

T Moriya, Y Kamamoto, N Harada, H Kameoka… - US Patent …, 2019 - Google Patents
A linear predictive coding apparatus is provided that performs linear predictive analysis
using a pseudo correlation function signal sequence obtained by performing inverse Fourier …

Shape parameter estimation for generalized-Gaussian-distributed frequency spectra of audio signals

R Sugiura, Y Kamamoto… - 2017 IEEE International …, 2017 - ieeexplore.ieee.org
We have devised a method for estimating, from a single frame of audio frequency spectra, a
shape parameter of multivariate generalized Gaussian distribution which has variance …

Apparatuses and methods for encoding and decoding a time-series sound signal by obtaining a plurality of codes and encoding and decoding distortions …

T Moriya, Y Kamamoto, N Harada, T Kawanishi… - US Patent …, 2019 - Google Patents
US10224049B2 - Apparatuses and methods for encoding and decoding a time-series sound
signal by obtaining a plurality of codes and encoding and decoding distortions corresponding …