Université de Neuchâtel

Watch-dictaphone for Automatic Medical Codification

Grassi, Sara ; Heck, P. ; Stadelmann, Patrick ; Cotofrei, Paul ; Dinissen, P. ; Meylan, F. ; Mignot, J.-P. ; Pfeuti, J.-N. ; Piccini, F. ; Geiser, P. ; Biundo, Giuseppina ; Farine, Pierre-André ; Grupp, Joachim ; Stoffel, Kilian

In: Proceedings of the European Signal Processing Conference (EUPSICO), 2008, vol. 16, p. 1-5

This paper describes the development of a voice data recording watch and the accompanying software and hardware needed to build an integrated solution for medical data capture and auto-matic codification. The developed system is used to capture on the stand-alone watch, either by voice recording or by form-filling, the relevant information on the healthcare service being provided. The captured...

Université de Neuchâtel

A Low-Complexity Variable Bit Rate Speech Coder for Portable Storage Applications

Grassi, Sara ; Matthey, M. ; Biundo, Giuseppina ; Dufaux, Alain ; Ansorge, Michael ; Pellandini, Fausto

In: Proceedings of Signal Processing Workshop (SPW), 2000, p. 7-12

This paper describes ongoing work in the development of a variable bit rate speech coder for storage applications in portable devices. The coder is based on the CELP FS1016, with different algorithmic modifications aimed at reducing the computational complexity. A silence compression scheme was adapted to this coder, to achieve reduction in both the bit rate and the power consumption. The...

Université de Neuchâtel

Spectral Quantization for Wideband Speech Coding

Biundo, Giuseppina ; Grassi, Sara ; Ansorge, Michael ; Pellandini, Fausto

In: Proceedings of the 1st COST 276 Workshop on Information and Knowledge Management for Integrated Media Communication, 2001, vol. 276, no. 1, p. 1-6

In this paper we describe the design of a spec-tral quantization scheme for wideband speech coding. The theoretical basis is given, together with experimental design, and implementation in a proprietary CELP (Code Excited Linear Prediction) coder.

Université de Neuchâtel

Design Techniques for Spectral Quantization in Wideband Speech Coding

Biundo, Giuseppina ; Grassi, Sara ; Ansorge, Michael ; Pellandini, Fausto ; Farine, Pierre-André

In: Proceedings of the 3rd COST 276 Workshop on Information and Knowledge Management for Integrated Media Communication, 2002, vol. 276, no. 3, p. 114-119

In this paper we describe the design of spectral quantization for wideband speech coding in order to achieve low bit-rate, low-complexity, transparent quantization schemes. The theoretical bases are given as well as the experimental design, listening tests and the implementation in a proprietary CELP (Code Excited Linear Prediction) coder.