Single-sensor multispeaker listening with acoustic metamaterials

Yangbo Xie, Tsung Han Tsai, Adam Konneker, Bogdan Ioan Popa, David J. Brady, Steven A. Cummer

Research output: Contribution to journalArticlepeer-review

65 Scopus citations


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 metama-terials 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.

Original languageEnglish (US)
Pages (from-to)10595-10598
Number of pages4
JournalProceedings of the National Academy of Sciences of the United States of America
Issue number34
StatePublished - Aug 25 2015
Externally publishedYes

ASJC Scopus subject areas

  • General


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