Henk van den Heuvel

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SPEECON (Speech-Driven Interfaces for Consumer Devices) is a project which aims to develop voice-driven interfaces for consumer applications. Led by an industrial consortium, the project’s goal is to collect speech data for at least 20 languages and 600 speakers per language (mostly adults but children as well). Recorded in different environments which are(More)
An open source database of hand-segmented Dutch speech was constructed with off-the-shelf software using speech from 8 speakers in a variety of speaking styles. For a total of 50,000 words, speech acquisition and preparation took around 3 person-weeks per speaker. Hand segmentation took 1,000 hours of labeling altogether. The asymptotic segmentation speed(More)
In 1995 our department was involved in two projects in the field of continuous speech recognition. The main aim of these two strongly related projects was the development of basic technology that can be used to build advanced telephone-based systems for providing information about public transport. A short description of the work carried out within these(More)
In the Netherlands there is a nationwide premium rate telephone number that can be dialed to obtain information about various forms of public transport. In t996 this number was called more than twelve million times. Human operators managed to handle only about nine million of these calls. In order to answer more of these calls, a spoken dialog system was(More)
This study is aimed at investigating whether automatic phonetic transcription procedures can approximate manual transcriptions typically delivered with contemporary large speech corpora. To this end, ten automatic procedures were used to generate a broad phonetic transcription of well-prepared speech (read-aloud texts) and spontaneous speech (telephone(More)
Research into spoken language has become more visual over the years. Both fundamental and applied research have progressively included gestures, gaze, and facial expression. Corpora of multi-modal conversational speech are rare and frequently difficult to use due to privacy and copyright restrictions. A freely available annotated corpus is presented, gratis(More)
The SpeechDat project aims to produce speech databases for all official languages of the European Union and some major dialectal variants and minority languages resulting in 28 speech databases. They will be recorded over fixed and mobile telephone networks. This will provide a realistic basis for training and assessment of both isolated and(More)
In the framework of the EU funded project TC-STAR (Technology and Corpora for Speech to Speech Translation), research on TTS aims on providing a synthesized voice sounding like the source speaker speaking the target language. To progress in this direction, research is focused on naturalness, intelligibility, expressivity and voice conversion both, in the(More)
This paper describes the creation of five new telephony speech databases for Central and Eastern European languages within the SpeechDat(E) project. The 5 languages concerned are Czech, Polish, Slovak, Hungarian, and Russian. The databases follow SpeechDat-II specifications with some language specific adaptation. The present paper describes the differences(More)