Searched for: subject:"Telephone"
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Počta, P. (author), Beerends, J.G. (author)
This paper investigates the impact of different telephone channels, represented by impairments as introduced by modern telecommunication networks (e.g. speech coding, bandwidth limitation, packet loss, etc.), on the intelligibility of synthesized speech. Both subjective and objective assessments are used. Two different speech intelligibility...
article 2015
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Meijer, R.J. (author), Cushing, R. (author), de Laat, C. (author), Jackson, P. (author), Klous, S. (author), Koning, R. (author), Makkes, M.X. (author), Meerwijk, A. (author)
In the invited talk 'Car2x with SDN, NFV and supercomputers' we report about how our past work with SDN [1, 2] allows the design of a smart mobility fieldlab in the huge parking lot the Amsterdam Arena. We explain how we can engineer and test software that handle the complex conditions of the Car2X case. The talk starts by describing the...
conference paper 2015
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Groenesteijn, L. (author), Ellegast, R.P. (author), Keller, K. (author), Krause, F. (author), Berger, H. (author), de Looze, M.P. (author)
In the present study, we investigated the effect of office tasks on posture and movements in field settings, and the comfort rating for chair characteristics and correlation with type of task. The tasks studied were: computer work, telephoning, desk work and conversation. Postures, movements, chair part inclinations and comfort rating data were...
article 2012
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Simons, L.P.A. (author), de Reuver, M. (author), Langley, D.J. (author), Attema-van Waas, A.R. (author), Hoeve, M.C. (author), Hulsbergen, F. (author), de Koning, N.M. (author), TNO Informatie- en Communicatietechnologie (author)
Empirical studies show that emotions mediate the impact of perceived service quality on customer satisfaction. In this paper, we explore how the mediating effect of emotions differs between web and telephone encounters. In addition, we explore if this mediating effect differs across three service industries that rely heavily on telephone and web...
conference paper 2011
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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
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Klos, V. (author), van Deventer, M.O. (author), van Staalduinen, M. (author), den Hartog, F.T.H. (author), TNO Informatie- en Communicatietechnologie (author)
Near Field Communication (NFC) enables fast interactive mobile services as it allows two mobile devices to quickly and securely exchange information when they are within touching range. However, NFC-enabled phones are virtually absent on the market today, which impedes the break-through of these useful services. This paper presents the Mobile...
conference paper 2009
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van Wier, M.F. (author), Arins, G.A.M. (author), Dekkers, J.C. (author), Hendriksen, I.J.M. (author), Smid, T. (author), van Mechelen, W. (author), TNO Kwaliteit van Leven (author)
Background. The work setting provides an opportunity to introduce overweight (i.e., Body Mass Index 25 kg/m2) adults to a weight management programme, but new approaches are needed in this setting. The main purpose of this study was to investigate the effectiveness of lifestyle counselling by phone or e-mail on body weight, in an overweight...
article 2009
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Frewer, L.J. (author), Davies, O.H. (author), van Rijswijk, W. (author), Lucas Luijckx, N.B. (author), Ward, S. (author), TNO Kwaliteit van Leven (author)
The modified European Food Law (General Food Law) has been emphasizing on the need to increase consumer confidence through implementation of regulatory measures focused on increased traceability in food chain. The implementation of effective traceability systems can provide the basis of communication between actors in the production chain, and...
article 2008
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Schenk, T.C.W. (author), Fledderus, E.R. (author), TNO Informatie- en Communicatietechnologie (author)
Dealing with radio frequency (RF) front-end impairments will be one of the major design challenges for next-generation wireless communication systems due to conflicting requirements, such as high data rate, low cost and low power consumption. The use of digital compensation of the imperfections appears a very promising method to meet...
conference paper 2008
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Delphinanto, A. (author), Koonen, A.M.J. (author), Peeters, M.E. (author), den Hartog, F.T.H. (author), TNO Informatie- en Communicatietechnologie (author)
The current service- and device discovery protocols are not platform- and network independent. Therefore, proxy servers will be needed to extend the range of IP-based discovery protocols to non-IP domains. We developed an architecture of a proxy that enables Universal Plug and Play (UPnP) devices and services to be discovered and accessed on the...
conference paper 2007
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Jorgušeski, L. (author), Litjens, R. (author), Zhiyi, C. (author), Nikookar, H. (author), TNO Informatie- en Communicatietechnologie (author)
Future wireless access systems will be characterized by their heterogeneity from technological point of view. It is envisaged that in certain areas end-users will have a choice between various radio accesses (RAs) such as e.g. classical cellular networks (GSM, UMTS, WiMAX, etc), WLAN hot-spots, or over multiple hops via wireless ad-hoc networks....
conference paper 2007
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van Uffelen, J.G.Z. (author), Chin A Paw, M.J.M. (author), Klein, M. (author), van Mechelen, W. (author), Hopman-Rock, M. (author), TNO Kwaliteit van Leven (author)
Background: Development of efficient methods for identifying subjects with Mild Cognitive Impairment (MCI) from the geneneral population is warranted, because these subjects represent an important group for (epidemiological) research purposes. Objectives: (1) To describe a two-step population screening for identifying adults with MCI from the...
article 2007
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Kessens, J.M. (author), van Leeuwen, D.A. (author), TNO Defensie en Veiligheid (author)
In this paper, we describe N-best 2008, the first Large Vocabulary Speech Recognition (LVCSR) benchmark evaluation held for the Dutch language. Both the accent as spoken in the Netherlands (Northern-Dutch) and in Belgium (Southern-Dutch or Flemish), will be evaluated. The evaluation tasks are broadcast news (BN) and conversational telephone...
conference paper 2007
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Rix, A.W. (author), Beerends, J.G. (author), Kim, D.-S. (author), Kroon, P. (author), Ghitza, O. (author), TNO Informatie- en Communicatietechnologie (author)
In the past few years, objective quality assessment models have become increasingly used for assessing or monitoring speech and audio quality. By measuring perceived quality on an easily-understood subjective scale, such as listening quality (excellent, good, fair, poor, bad), these methods provide a quick and repeatable way to estimate customer...
article 2006
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Degrande, N. (author), de Vleeschauwer, D. (author), Kooij, R.E. (author), Mandjes, M.R.H. (author), TNO Informatie- en communicatietechnologie (author)
In First Person Shooter (FPS) games the Round Trip Time (RTT), i.e., the sum of the network delay from client to server and the network delay from server to client, impacts the gamer's performance considerably. Game client software usually has a built-in process to measure this RTT (also referred to as ping time), and therefore gamers do not...
conference paper 2006
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Ocké, M.C. (author), Hulshof, K.F.A.M. (author), van Rossum, C.T.M. (author), TNO Kwaliteit van Leven (author)
Background: Dietary monitoring is an important tool for food policy evaluation and development. The methodologies of previous Dutch surveys were less optimal for answering current food policy questions. Aim and method: In order to gain experiences with a new approach, in 2003 a food consumption survey was conducted among 750 Dutch young adults ...
article 2005
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Mantel, O.C. (author), Rijken, M. (author), Matic, D. (author), Mawira, A. (author)
Signal level predictions for sector antennas in mobile networks strongly depend on the antenna pattern used in the prediction tool. For built-up areas, reflections and scattering often lead to a significant energy component at the back of the antenna, and the theoretical antenna pattern does not account for this effect. We propose a method that ...
conference paper 2004
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Verrips, G.H.W. (author), Stuifbergen, M.C. (author), den Ouden, A.L. (author), Bonsel, G.J. (author), Gemke, R.J.B.J. (author), Paneth, N. (author), Verloove-Vanhorick, S.P. (author)
The aim of this study was to evaluate interrater and intermodality agreement in assessing health status using the Health Utilities Index. A random sample from a Dutch cohort of 14-year-old Very Low Birth Weight children and their parents were invited to participate in a face-to-face (n = 150) or telephone (n = 150) interview. All 300...
article 2001
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van Leersum, B.J.A.M. (author), van Leeuwen, G.M.J. (author), Zwamborn, A.P.M. (author), Lagendijk, J.J.W. (author), Hornsleth, S.N. (author), Kotte, A.N.T.J. (author), TNO Fysisch en Elektronisch Laboratorium (author)
conference paper 2000
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van Leeuwen, G.M.J. (author), Lagendijk, J.J.W. (author), van Leersum, B.J.A.M. (author), Zwamborn, A.P.M. (author), Hornsleth, S.N. (author), Kotte, A.N.T.J. (author), TNO Fysisch en Elektronisch Laboratorium (author)
In this study we evaluated for a realistic head model the 3D temperature rise induced by a mobile phone. This was done numerically with the consecutive use of an FDTD model to predict the absorbed electromagnetic power distribution, and a thermal model describing bioheat transfer both by conduction and by blood flow. We calculated a maximum rise...
article 1999
Searched for: subject:"Telephone"
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