✦ LIBER ✦

A practical time-delay estimator for localizing speech sources with a microphone array

✍ Scribed by Michael S. Brandstein; John E. Adcock; Harvey F. Silverman

Publisher: Elsevier Science
Year: 1995
Tongue: English
Weight: 220 KB
Volume: 9
Category: Article
ISSN: 0885-2308
DOI: 10.1006/csla.1995.0009

No coin nor oath required. For personal study only.

✦ Synopsis

A frequency-domain-based delay estimator is described, designed specifically for speech signals in a microphone-array environment. It is shown to be capable of obtaining precision delay estimates over a wide range of signal-to-noise ratio conditions and is computationally simple enough to make it practical for real-time systems. A location algorithm based upon the delay estimator is then developed. With this algorithm it is possible to localize talker positions to a region only a few centimetres in diameter (not very different from the size of the source), and to track a moving source. Experimental results using data from a real 16-element array are presented to indicate the true performance of the algorithms.

📜 SIMILAR VOLUMES

A practical methodology for speech sourc

A practical methodology for speech source localization with microphone arrays

✍ Michael S. Brandstein; Harvey F. Silverman 📂 Article 📅 1997 🏛 Elsevier Science 🌐 English ⚖ 545 KB

Electronically steerable arrays of microphones have a variety of uses in speech data acquisition systems. Applications include teleconferencing, speech recognition and speaker identification, sound capture in adverse environments, and biomedical devices for the hearing impaired. An array of micropho

A time delay for speech-sound localizati

A time delay for speech-sound localization experiments

✍ A.F. Newell; G.D. Hartnell 📂 Article 📅 1975 🏛 Elsevier Science 🌐 English ⚖ 282 KB

A method of obtaining a time delay of speech signals for sound localization experiments is described. A simple delta modulator system is used which is operated at a high bit rate to give an inexpensive system which retains an adequate performance for speech signals.

A flexible continuous beamformer with ti

A flexible continuous beamformer with time delay for an optical-controlled phased-array antenna

✍ Jianliang Yang; Swee Chuan Tjin; Yunqi Liu; Nam Quoc Ngo 📂 Article 📅 2003 🏛 John Wiley and Sons 🌐 English ⚖ 104 KB 👁 1 views

## Abstract A flexible continuous optical beamformer with time delay for a phased‐array antenna is proposed and demonstrated. It is constructed using a novel tunable chirped fiber grating achieved by bending a uniform grating, and a multi‐wavelength fiber laser based on a novel Sagnac interferemetr

Erratum: “Estimation of source location

Erratum: “Estimation of source location for a borehole radar with a circular array by the MUSIC algorithm”

✍ Satoshi Ebihara; Motoyuki Sato; Hiroaki Niitsuma 📂 Article 📅 1997 🏛 John Wiley and Sons 🌐 English ⚖ 42 KB 👁 2 views

A theorem on duality between estimation

A theorem on duality between estimation and control for linear stochastic systems with time delay

✍ Anders Lindquist 📂 Article 📅 1972 🏛 Elsevier Science 🌐 English ⚖ 838 KB

Estimating survival gain for economic ev

Estimating survival gain for economic evaluations with survival time as principal endpoint: A cost-effectiveness analysis of adding early hormonal therapy to radiotherapy in patients with locally advanced prostate cancer

✍ N. Neymark; I. Adriaenssen; T. Gorlia; S. Caleo; M. Bolla 📂 Article 📅 2002 🏛 John Wiley and Sons 🌐 English ⚖ 240 KB 👁 1 views

## Abstract The problem of estimating expected outcomes for the economic evaluation of treatments for which the outcome of principal interest is (quality adjusted) survival time has so far not received sufficient attention in the literature. The best estimate of expected survival is mean survival t