Single-sensor multispeaker listening with acoustic metamaterials.
Journal Article (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
Pubmed Central ID
- PMC4553806
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