no code implementations • 27 Oct 2023 • Wiebke Middelberg, Henri Gode, Simon Doclo
In many multi-microphone algorithms for noise reduction, an estimate of the relative transfer function (RTF) vector of the target speaker is required.
no code implementations • 25 Oct 2023 • Henri Gode, Simon Doclo
Instead of blocking the second speaker, in this paper we propose a covariance blocking and whitening (CBW) method, which first blocks the first speaker and applies whitening using the estimated noise covariance matrix and then estimates the RTF vector of the second speaker based on a singular value decomposition.
no code implementations • 13 Mar 2023 • Henri Gode, Simon Doclo
Interfering sources, background noise and reverberation degrade speech quality and intelligibility in hearing aid applications.
no code implementations • 3 Jun 2021 • Henri Gode, Marvin Tammen, Simon Doclo
To optimize the convolutional filter, the desired speech component is modeled with a time-varying Gaussian model, which promotes the sparsity of the desired speech component in the short-time Fourier transform domain compared to the noisy microphone signals.