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Guitar Note & Chord Recognition Guitar Note & Chord Recognition

Guitar Note & Chord Recognition - PowerPoint Presentation

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Uploaded On 2017-08-06

Guitar Note & Chord Recognition - PPT Presentation

Julian Urrego amp Michael Intindola Scope Design and program a gadget to detect and display guitar notes and chords in real time Recognize all notes on a 22 fret fretboard at standard tuning EADGBE ID: 576405

display chords audio amp chords display amp audio chord guitar design notes guitarist hardware song processing domain recognize time

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Presentation Transcript

Slide1

Guitar Note & Chord Recognition

Julian Urrego & Michael IntindolaSlide2

Scope

Design and program a gadget to detect and display guitar notes and chords in real time.

Recognize all notes on a 22 fret

fretboard

at standard tuning: EADGBE

Recognize Major, Minor, Augmented, and Diminished chordsSlide3

Usefulness

Train a guitarist to learn the notes on the

fretboard

Teach beginners what chords they’re playing

Allow other musicians to follow along with what the guitarist is playingSlide4

Background

Pitch Detection Methods

Time domain detection

Frequency domain detection

Detectors based on models of the ears

Chord Recognition

Pitch Class Profiles

Segment audio -> Hamming window -> DFT -> 12 dimensional vector is formed

Chord templates to match vector with a chordCurrent TechnologyChordecChordataBoth applications analyze a song and then display chords as the song plays backSlide5

Hardware & Skills

Hardware possibilities:

Arduino

Successful in producing effects (reverb,

flanger

,

phasor

, etc.) & computed waveforms

Raspberry PiSufficient for real time audio processing but requires an external USB sound cardGuitar will plug into the sound card, the audio will be processed, and display the chord and chord qualities on an LED displayOur Skills:Digital Signal ProcessingDigital Audio (Plug-in design using C++)

Microprocessor/Circuit Design coursework