Note Detection
INTRODUCTION
Process/Timeline
Data Collection
>
1. Prediction Data
2. Training Data
Graphs of Processed Data
>
Time and Frequency Plots
Spectrograms
Approach
Difficulties
DSP TOOLS
Butterworth Filter
Segmentation
FFT (Fast Fourier Transform)
Main Frequency and Harmonic Detection
Center Clipping
AMDF
Classifiers
Takeaways
Future Plans
Our Code
Analyzing Related Approach
Before starting our project we analyzed how a previous graduate student went about a similar signal processing project. See our analysis below.
Graduate Student Project
Gathering Data
Our process began with collecting numerous audio recordings from different instruments
Data Collection
Early Approaches
Used the Fourier transform to get the frequency components of an audio recording.
Early Processed Data
Current Design
Based on in-class and out of class tools, we developed a system to analyze audio recordings.
Approach
INTRODUCTION
Process/Timeline
Data Collection
>
1. Prediction Data
2. Training Data
Graphs of Processed Data
>
Time and Frequency Plots
Spectrograms
Approach
Difficulties
DSP TOOLS
Butterworth Filter
Segmentation
FFT (Fast Fourier Transform)
Main Frequency and Harmonic Detection
Center Clipping
AMDF
Classifiers
Takeaways
Future Plans
Our Code