DISEÑO DE UN MICROSISTEMA PROGRAMABLE PARA EFECTOS DE AUDIO DIGITAL USANDO FPGAS.
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| Title: | DISEÑO DE UN MICROSISTEMA PROGRAMABLE PARA EFECTOS DE AUDIO DIGITAL USANDO FPGAS. |
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| Alternate Title: | DESIGN OF A PROGRAMMABLE MICROSYSTEM FOR DIGITAL AUDIO EFFECTS USING FPGAS. PROJETO DE UM MICROSISTEMA PROGRAMÁVEL PARA EFEITOS DE ÁUDIO DIGITAL USANDO FPGAS. |
| Authors: | LIÉVANO TORRES, PEDRO P.1, ESPINOSA DURÁN, JOHN MICHAEL1,2, RENTERÍA MEJÍA, CLAUDIA P.3, VELASCO MEDINA, JAIME4 |
| Source: | Revista EIA. Jul-Dec2014, Vol. 11 Issue 22, p133-146. 14p. |
| Subjects: | Microelectromechanical system design & construction, Computer sound processing equipment, Embedded computer systems -- Programming, Field programmable gate arrays, Frequency response, Touch screen interfaces |
| Abstract (English): | This paper describes the design of a programmable microsystem for processing of digital audio effects implemented in an FPGA. The microsystem is designed using an specific purpose and reconfigurable processor, a bank of RAMs and a user graphic interface based on an LCD touch panel. The processor is designed using 15 audio effects based on delays, and dynamic and frequency domain processing. The effects are designed using Megafunctions and the FIR compiler of Quartus II, simulated in Simulink using DSP Builder, and configured using a user graphic interface. The programmable microsystem is implemented on the DE2-70 development board, and its operation is verified using an MP3 player and a speaker. Additionally, the microsystem allows the generation of effects with high fidelity using a maximum sample rate of 195.62 MSPS, and can be embedded into a SoC. [ABSTRACT FROM AUTHOR] |
| Abstract (Spanish): | Este artículo describe el diseño de un microsistema programable para el procesamiento de efectos de audio digital implementado en un FPGA. El microsistema es diseñado usando un procesador de propósito específico y reconfigurable, un banco de RAMs y una interfaz gráfica de usuario basada en una pantalla táctil LCD. El procesador es diseñado usando 15 efectos de audio basados en retardos y procesamiento en el dominio dinámico y de la frecuencia. Los efectos son diseñados usando Megafunciones y el compilador FIR de Quartus II, son simulados en Simulink usando DSP Builder, y son configurados utilizando una interfaz gráfica de usuario. El microsistema programable es implementado en el sistema de desarrollo DE2-70, y su funcionamiento es verificado usando un reproductor MP3 y un parlante. Adicionalmente, el microsistema permite la generación de efectos con alta fidelidad usando una tasa de muestreo máxima de 195.62 MSPS, y puede ser embebido en un SoC. [ABSTRACT FROM AUTHOR] |
| Abstract (Portuguese): | Este artigo descreve o desenho de um microsistema programável para o processamento de efeitos de auidio digital implementado em um FPGA. O microssistema é projetado usando um processador específico e reconfigurável um banco de RAMs e uma interface gráfica de usuario baseada em uma tela sensível ao toque de LCD. O processador foi projetado com 15 efeitos de áudio com base em atrasos e domínio de processamento e frequência dinâmica. Os efeitos são projetados usando Megafunciones e o compilador FIR de Quartus II são simulados utilizando Simulink 1 usando DSP Builder2 e são configurados através de uma interface gráfica de usuario. O microssistema programável é implementado no sistema de desenvolvimento DE2-70, e seu desempenho é verificado através de um leitor de MP3 e um alto-falante. Além disso, o micro-sistema permite a geração de efeitos, com elevada fidelidade, utilizando uma taxa de amostragem máxima de 195,62 MSPS, e pode ser incorporado em um SoC. [ABSTRACT FROM AUTHOR] |
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| Database: | Engineering Source |
| Abstract: | This paper describes the design of a programmable microsystem for processing of digital audio effects implemented in an FPGA. The microsystem is designed using an specific purpose and reconfigurable processor, a bank of RAMs and a user graphic interface based on an LCD touch panel. The processor is designed using 15 audio effects based on delays, and dynamic and frequency domain processing. The effects are designed using Megafunctions and the FIR compiler of Quartus II, simulated in Simulink using DSP Builder, and configured using a user graphic interface. The programmable microsystem is implemented on the DE2-70 development board, and its operation is verified using an MP3 player and a speaker. Additionally, the microsystem allows the generation of effects with high fidelity using a maximum sample rate of 195.62 MSPS, and can be embedded into a SoC. [ABSTRACT FROM AUTHOR] |
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| ISSN: | 17941237 |
| DOI: | 10.14508/reia.2014.11.22.133-146 |
