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Engineering Brief

Distant Speech Beamforming Improving Multi-User ASR

Authors: Kupryjanow, Adam; Rao R, Raghavendra; Maziewski, Przemek; Kurylo, Lukasz

AES Convention 144 · Paper 429 · May 2018

Abstract

In this paper an algorithm that improves side speaker attenuation for super directive beamformer like MVDR (Minimum Variance Distortionless Response) is presented. This technique can be utilized in a scenario where there are multiple people in a room intending to interact with an ASR- (automatic speech recognition) enabled device, e.g., smart speaker. The experiments show that the proposed solution gives a reduction of WER (word error rate) up to 23.93% calculated for command uttered by one user when a second user was treated as the side speaker.

Details

Published in
AES Convention 144
AES Convention
144
Paper number
429
Publication date
May 6, 2018
Session subject
Spatial Audio
Affiliation
Intel Technology Poland, Gdansk, Poland; Intel Technology, Devarabeesanahalli, KA, India (See document for exact affiliation information.)
Type
Engineering Brief