Unsupervised harmonic parameter estimation using differentiable dsp and spectral optimal transport

B Torres, G Peeters, G Richard - ICASSP 2024-2024 IEEE …, 2024 - ieeexplore.ieee.org
In neural audio signal processing, pitch conditioning has been used to enhance the
performance of synthesizers. However, jointly training pitch estimators and synthesizers is a …

Interpolation and extrapolation of Toeplitz matrices via optimal mass transport

F Elvander, A Jakobsson… - IEEE Transactions on …, 2018 - ieeexplore.ieee.org
In this work, we propose a novel method for quantifying distances between Toeplitz
structured covariance matrices. By exploiting the spectral representation of Toeplitz …

Tracking and sensor fusion in direction of arrival estimation using optimal mass transport

F Elvander, I Haasler, A Jakobsson… - 2018 26th European …, 2018 - ieeexplore.ieee.org
In this work, we propose new methods for information fusion and tracking in direction of
arrival (DOA) estimation by utilizing an optimal mass transport framework. Sensor array …

Estimating inharmonic signals with optimal transport priors

F Elvander - ICASSP 2023-2023 IEEE International Conference …, 2023 - ieeexplore.ieee.org
In this work, we consider the problem of estimating the frequency content of inharmonic
signals, ie, sinusoidal mixtures whose components are close to forming a harmonic set …

Audio transport: A generalized portamento via optimal transport

T Henderson, J Solomon - arxiv preprint arxiv:1906.06763, 2019 - arxiv.org
This paper proposes a new method to interpolate between two audio signals. As an
interpolation parameter is changed, the pitches in one signal slide to the pitches in the other …

Multi-source localization and data association for time-difference of arrival measurements

G Flood, F Elvander - 2024 32nd European Signal Processing …, 2024 - ieeexplore.ieee.org
In this work, we consider the problem of localizing multiple signal sources based on time-
difference of arrival (TDOA) measurements. In the blind setting, in which the source signals …

Convex clustering for multistatic active sensing via optimal mass transport

F Elvander, J Karlsson… - 2021 29th European …, 2021 - ieeexplore.ieee.org
In multistatic active sensing, such as active sonar, exploiting the spatial diversity provided by
the use of several transmitting and receiving units can lead to increased resolution and …

On harmonic approximations of inharmonic signals

F Elvander, J Ding, A Jakobsson - ICASSP 2020-2020 IEEE …, 2020 - ieeexplore.ieee.org
In this work, we present the misspecified Gaussian Cramér-Rao lower bound for the
parameters of a harmonic signal, or pitch, when signal measurements are collected from an …

Offline noise reduction using optimal mass transport induced covariance interpolation

F Elvander, R Ali, A Jakobsson… - 2019 27th European …, 2019 - ieeexplore.ieee.org
In this work, we propose to utilize a recently developed covariance matrix interpolation
technique in order to improve noise reduction in multi-microphone setups in the presence of …

Audio signal interpolation using optimal transportation of spectrograms

D Valdivia, M Renaud, E Cazelles, C Févotte - arxiv preprint arxiv …, 2025 - arxiv.org
We present a novel approach for generating an artificial audio signal that interpolates
between given source and target sounds. Our approach relies on the computation of …