Generalized Time Domain Velocity Vector
This work addresses acoustic signal processing challenges for audio analysis applications, but appears incremental as it builds on prior methods.
The authors tackled the problem of estimating multiple plane wave components in multichannel audio mixtures under adverse acoustic conditions by introducing Generalized Time Domain Velocity Vector (GTVV), an extension of acoustic multipath footprints from Ambisonic recordings, and experiments on simulated data confirmed its theoretical advantages.
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.