Implementación de un Sistema de Reconocimiento del Habla en un DSC
(Implementation of a Speech Recognition System in a DSC)
Alejandro Gastón Alvarez (firstname.lastname@example.org)1, Diego Alexis Evin (email@example.com)2, Sebastián Verrastro (firstname.lastname@example.org)1
1Universidad Tecnológica Nacional - Facultad REgional Buenos Aires2Laboratorio de Investigaciones Sensoriales, INIGEM, CONICET-UBA
This paper appears in: Revista IEEE América Latina
Publication Date: June 2016
Volume: 14, Issue: 6
This paper describes the development and validation of an Embedded IsolatedWord Recognition System (IWR) for the Argentinian Spanish language, implemented on the STM32F4-Discovery platform. Its front-end extracts Mel Frequency Cepstral Coefficients (MFCC), while its classification step is based on the Dynamic Time Warping (DTW) algorithm. Since the system was conceived as a base platform for the research and development of speechbased command and control applications, it was designed to be modular and to meet real-time performance. The system includes a Real Time Operating System (RTOS) to manage various processing and control tasks, which can be easily reconfigured with different acquisition, processing and recognition parameters using a single file. The validation was done using a scenario of robotic control, achieving performance rates which demonstrates the practical usefulness of the system.
Embedded ASR, DSC, IWR, DTW, MFCC.
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