Single-sensor multispeaker listening with acoustic metamaterials.

Journal Article

Designing a "cocktail party listener" that functionally mimics the selective perception of a human auditory system has been pursued over the past decades. By exploiting acoustic metamaterials and compressive sensing, we present here a single-sensor listening device that separates simultaneous overlapping sounds from different sources. The device with a compact array of resonant metamaterials is demonstrated to distinguish three overlapping and independent sources with 96.67% correct audio recognition. Segregation of the audio signals is achieved using physical layer encoding without relying on source characteristics. This hardware approach to multichannel source separation can be applied to robust speech recognition and hearing aids and may be extended to other acoustic imaging and sensing applications.

Full Text

Duke Authors

Cited Authors

  • Xie, Y; Tsai, T-H; Konneker, A; Popa, B-I; Brady, DJ; Cummer, SA

Published Date

  • August 10, 2015

Published In

Volume / Issue

  • 112 / 34

Start / End Page

  • 10595 - 10598

PubMed ID

  • 26261314

Electronic International Standard Serial Number (EISSN)

  • 1091-6490

International Standard Serial Number (ISSN)

  • 0027-8424

Digital Object Identifier (DOI)

  • 10.1073/pnas.1502276112

Language

  • eng