Olivier van der Vrecken

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The aim of the MBROLA project, recently initiated by the Faculté Polytechnique de Mons (Belgium), is to obtain a set of speech synthesizers for as many voices, languages and dialects as possible, free of use for non-commercial and non-military applications. The ultimate goal is to boost up academic research on speech synthesis, and particularly on prosody(More)
Most state-of-the-art TTS synthesizers are based on a technique known as synthesis by concatenation, in which speech is produced by concatenating elementary speech units. The design of a high-quality TTS system implies the storage of a large number of segments. To facilitate the storage of these segments, this paper proposes a very low complexity coder to(More)
This paper presents an audio coding system which uses filter banks to decompose, in the frequency domain, the audio signal into constant width subbands. A specific compression is applied in each subband. This compression is achieved by means of CELP coders. In order to obtain a high audio quality, psychoacoustic models allocate dynamically the number of(More)
This paper describes a new speech coding system working at a bit rate of 2400 bps. Like other coders at this bit rate, the BTC-S24 is based on a linear prediction (LP) model that uses a bimodal voicing decision in order to make an efficient coding of voiced and unvoiced frames. Such coders have proved to produce a good intelligibility of the synthesized(More)
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