Publication: Diseño e implementación de un afinador cromático para guitarra
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Publication date
2016-10
Defense date
2019-11-09
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Abstract
El objetivo que persigue este Proyecto es la creación de un afinador analógico y un
afinador cromático digital para guitarra. Una vez construidos se procederá a la
realización de un estudio valorando los puntos fuertes y débiles de ambos modelos.
Para ambos afinadores se probarán diferentes circuitos para cada una de sus etapas,
siendo estas adquisición, acondicionamiento, tratamiento e indicación.
En el afinador cromático digital se empleará una placa de evaluación TM4C1294 de la
serie Tiva C para el tratamiento de la señal, donde se calculará la frecuencia
fundamental de la señal mediante la realización de su transformada de Fourier.
Así mismo el presente Proyecto presenta un alto carácter didáctico ya que se orienta al
posible uso en futuras ediciones de asignaturas de electrónica impartidas por el
Departamento de Tecnología Electrónica de la Universidad Carlos III de Madrid.
The main target in this Project is the implementation of an analogic guitar tuner and a chromatic digital tuner, both for guitar. Once they are designed, a study assessing the strengths and weaknesses of both designs is presented. For both tuners, different test circuits are designed for each of their stages: acquisition, conditioning, signal processing and user’s interface. The chromatic digital tuner uses the Tiva C series TM4C1294 launchpad for signal processing, which will calculate the signal fundamental frequency by using Fourier transformation. In this way this Project also brings a high instructive character, so their results are intended to be used in future editions for some electronics subjects lectured at Electronics Technology Department in Madrid’s Carlos III University.
The main target in this Project is the implementation of an analogic guitar tuner and a chromatic digital tuner, both for guitar. Once they are designed, a study assessing the strengths and weaknesses of both designs is presented. For both tuners, different test circuits are designed for each of their stages: acquisition, conditioning, signal processing and user’s interface. The chromatic digital tuner uses the Tiva C series TM4C1294 launchpad for signal processing, which will calculate the signal fundamental frequency by using Fourier transformation. In this way this Project also brings a high instructive character, so their results are intended to be used in future editions for some electronics subjects lectured at Electronics Technology Department in Madrid’s Carlos III University.
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Keywords
Afinador cromático digital, Guitarras, Circuitos electrónicos, Electrónica