Generalized Time Domain Velocity Vector

TL;DR

The paper introduces GTVV, an advanced acoustic feature that improves parameter estimation of multiple sound sources in challenging environments, validated through simulations.

Contribution

It presents GTVV, a novel extension of the acoustic multipath footprint, optimized for adverse conditions and efficient in multichannel audio analysis.

Findings

GTVV outperforms previous features in adverse acoustic scenarios.

Simulated experiments confirm theoretical advantages.

GTVV enables more accurate sound source parameter estimation.

Abstract

We introduce and analyze Generalized Time Domain Velocity Vector (GTVV), an extension of the previously presented acoustic multipath footprint extracted from the Ambisonic recordings. GTVV is better adapted to adverse acoustic conditions, and enables efficient parameter estimation of multiple plane wave components in the recorded multichannel mixture. Experiments on simulated data confirm the predicted theoretical advantages of these new spatio-temporal features.