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DSP Guitar Tuner

[EENG 3910] Project 5 - Jarred Stumberg - Carlo Almeida - Bernardo Rivera
by

Jarred Stumberg

on 13 February 2014

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Transcript of DSP Guitar Tuner

Introduction
Real-time, guitar tuning interface
The VI (Visual Instrument) will detect and display tuning
The interface will react when the note played is near the desired pitch
Motivation
Gain familiarity with FFT
Project Goals
User-friendly interface
Resource-efficient coding
Real-time VI
Multiple Input Options

Approach
DSP Guitar Tuner
Experimental Results
Challenges
Issues with MathScript in NI LabVIEW 2011
By: Jarred Stumberg
Bernardo Rivera
Carlo Almeida
requency
Apply DSP techniques to real-world applications
Connect creative and technical aspects
Success!
Questions
Acquire
Sound
Convert to Frequency
Spectrum
Compare
Pitch
Project Process Flowchart
Implementation
Replace need for additional hardware*
- Hash Maps from the containers package
- findpeaks()
Various software malfunctions
Hardware limitations
Evaluation
Stumberg
VI Front Panel
LED Boolean Logic
MathScript Support
Presentation
Report
Rivera
Block Diagram Design
MathScript Algorithmic Design
Final Demonstration
Report
Almeida
MathScript Algorithmic Design
Final Video Demonstration
Code and Block Diagram Verification
Report
Work Load
Answers
*Advantages of Digital Guitar Tuners
No Limited Battery Life
Extensive Signal Information
Higher Sampling Rates
Easy-to-Read Display
Convenient in a DAW

1. http://www.vaughns-1-pagers.com/music/musical-note-frequencies.htm
2. http://www.phy.mtu.edu/~suits/cents.html
References
Full transcript