Searched for: author%3A%22Houtgast%2C+T.%22
(1 - 20 of 29)

Pages

document
Zekveld, A.A. (author), Kramer, S.E. (author), Kessens, J.M. (author), Vlaming, M.S.M.G. (author), Houtgast, T. (author), TNO Defensie en Veiligheid (author)
Objective: The aim of the current study was to examine whether partly incorrect subtitles that are automatically generated by an Automatic Speech Recognition (ASR) system, improve speech comprehension by listeners with hearing impairment. In an earlier study (Zekveld et al. 2008), we showed that speech comprehension in noise by young listeners...
article 2009
document
Zekveld, A.A. (author), Kramer, S.E. (author), Kessens, J.M. (author), Vlaming, M.S.M.G. (author), Houtgast, T. (author), TNO Defensie en Veiligheid (author)
This study examined the subjective benefit obtained from automatically generated captions during telephone-speech comprehension in the presence of babble noise. Short stories were presented by telephone either with or without captions that were generated offline by an automatic speech recognition (ASR) system. To simulate online ASR, the word...
article 2009
document
Zekveld, A.A. (author), Kramer, S.E. (author), Kessens, J.M. (author), Vlaming, M.S.M.G. (author), Houtgast, T. (author), TNO Kwaliteit van Leven (author)
OBJECTIVES: The aim of this study was to evaluate the benefit that listeners obtain from visually presented output from an automatic speech recognition (ASR) system during listening to speech in noise. DESIGN: Auditory-alone and audiovisual speech reception thresholds (SRTs) were measured. The SRT is defined as the speech-to-noise ratio at which...
article 2008
document
van Wijngaarden, S.J. (author), Bronkhorst, A.W. (author), Houtgast, T. (author), Steeneken, H.J.M. (author), TNO Technische Menskunde (author)
While the Speech Transmission Index ~STI! is widely applied for prediction of speech intelligibility in room acoustics and telecommunication engineering, it is unclear how to interpret STI values when non-native talkers or listeners are involved. Based on subjectively measured psychometric functions for sentence intelligibility in noise, for...
article 2004
document
van Wijngaarden, S.J. (author), Houtgast, T. (author)
The Speech Transmission Index (STI) is routinely applied for predicting the intelligibility of messages (sentences) in noise and reverberation. Despite clear evidence that the STI is capable of doing so accurately, recent results indicate that the STI sometimes underestimates the effect of reverberation on sentence intelligibility. To...
article 2004
document
Steeneken, H.J.M. (author), Houtgast, T. (author), TNO Technische Menskunde (author)
In an earlier study we derived robust frequency-weighting functions for prediction of the intelligibility of short nonsense words.These frequency-weighting functions are applied for prediction of intelligibility such as with the speech transmission index (STI).Six independent experiments revealed essentially similar frequency-weighting functions...
article 2002
document
van Wijngaarden, S.J. (author), Steeneken, H.J.M. (author), Houtgast, T. (author), TNO Technische Menskunde (author)
article 2002
document
Steeneken, H.J.M. (author), Houtgast, T. (author)
The revised model for the speech transmission index (STIr, Speech Communication 28 (1999) 109), was validated with an independent set of 68 test conditions. For a subset of 18 conditions, including only additive noise and band-pass limiting, it was veri.ed that the STIr provides a good prediction of the CVC-word score. The additional...
article 2002
document
van Wijngaarden, S.J. (author), Steeneken, H.J.M. (author), Houtgast, T. (author), Bronkhorst, A.W. (author), TNO Technische Menskunde (author)
article 2002
document
van Wijngaarden, S.J. (author), Steeneken, H.J.M. (author), Houtgast, T. (author), TNO Technische Menskunde (author)
When listening to languages learned at a later age, speech intelligibility is generally lower than when listening to one's native language. The main purpose of this study is to quantify speech intelligibility in noise for specific populations of non-native listeners, only broadly addressing the underlying perceptual and linguistic processing. An...
article 2002
document
TNO Technische Menskunde (author), Houtgast, T. (author), Steeneken, H.J.M. (author), van Wijngaarden, S.J. (author)
Table of contents Tammo's and Herman's Index. An introduction by Manfred R. Schroeder Chapter 1. The roots of the STI approach. Tammo Houtgast and Herman J.M. Steeneken: Introduction - Our first effort - Introduction of STI - Speech envelope spectrum and MTF - Further developments - Envelope modulation and the ear Chapter 2. Basics of the STI...
book 2002
document
van Wijngaarden, S.J. (author), Steeneken, H.J.M. (author), Houtgast, T. (author), TNO Technische Menskunde (author)
To deal with the effects of nonnative speech communication on speech intelligibility, one must know the magnitude of these effects. To measure this magnitude, suitable test methods must be available. Many of the methods used in cross-language speech communication research are not very suitable for this, since these methods are designed to...
conference paper 2001
document
Steeneken, H.J.M. (author), Houtgast, T. (author)
Current objective measures for predicting the intelligibility of speech by an index assume that this can be obtained by simple addition of the contributions of individual frequency bands. The Articulation Index (AI, and the related Speech Intelligibility Index), and the Speech Transmission Index (STI) are based on this assumption. There is...
article 1999
document
van Buuren, R.A. (author), Festen, J.M. (author), Houtgast, T. (author), TNO Fysisch en Elektronisch Laboratorium TNO Technische Menskunde (author)
In a series of experiments, we introduced peaks of 10, 20, and 30 dB, in various combinations, onto a smooth reference frequency response. For each of the conditions, we evaluated speech intelligibility in noise, using a test as developed by Plomp and Mimpen (1979), and sound quality (for both speech and music), using a rating-scale procedure....
article 1996
document
Aoki, S. (author), Houtgast, T. (author), TNO Human Factors (author)
article 1994
document
TNO Technische Menskunde (author), Houtgast, T. (author)
public lecture 1994
document
Houtgast, T. (author), van den Brink, W.A.C. (author)
Het oor blijkt het meest gevoelig voor bepaalde typen van geluiden (tonen en kliks); dat zijn ook de meest voorkomende elementen in de dergelijke geluiden uit onze omgeving.
article 1990
document
Instituut voor Zintuigfysiologie TNO (author), Steeneken, H.J.M. (author), Houtgast, T. (author)
report 1986
document
Steeneken, H.J.M. (author), Houtgast, T. (author), Instituut voor Zintuigfysiologie TNO (author)
article 1980
document
Steeneken, H.J.M. (author), Houtgast, T. (author), Instituut voor Zintuigfysiologie TNO (author)
A physical method for measuring the quality of speech‐transmission channels has been developed. Essentially, the method represents an extension of the Articulation Index (AI) concept, which was developed mainly to account for distortions in the frequency domain (noise, bandpass‐limiting). The underlying concept of the present approach, based on...
article 1980
Searched for: author%3A%22Houtgast%2C+T.%22
(1 - 20 of 29)

Pages