Istituto di Scienza e Tecnologie dell'Informazione     
Bertini G., Fontana F., Gonzalez D., Grassi L., Magrini M. Voice transformation algorithms with real time DSP rapid prototyping tools. In: EUSIPCO European Signal Processing Conference (Antalya (Turkey), 4-8 September 2005). Proceedings, CD Editon by SuviSoft Oy Ltd Tampere (Finland) ISBN 975-00188-O-X (ed.). 2005.
The main goal of the work here described is the DSP implementation of innovative algorithms for real-time voice transformation. This work represents part of the procedure (developed in the framework of the RACINE-S European Project) conceived for reconstructing voice and dialogue in audio tracks of old and highly damaged film movies. Besides the implementation of a set of methods, as LPC/ VC (Linear Prediction Coding/ Voice Conversion),innovative methods of improving of the quality of synthesized voice have been considered. This whole set of operations represents a particular implementation of the so-called 'Virtual Dubbing' procedure. The basic steps of the complete project include: designing a method for high-quality voice transformation, a suitable algorithm in Matlab/Simulink and,finally, translating it into Digital Signal Processor target code by means of a rapid prototyping approach. The original code was developed in Matlab and so we used the Mathworks MATLAB's Real Time Workshop (RTW)DSP platform for rapid prototyping.
Subject Digital Signal Processing
Audio Restoration
Rapid Prototyping
C.3 Signal Processing and Systems
H.5.1 Audio Input/Output
H.5.5 Sound and Music Computing
I.5.4 Waveform Analysis

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