Brief Review — Cardiac Sound Classification Using Mel-Frequency Cepstral Coefficients (MFCC) and Artificial Neural Network (ANN)

MFCC+ANN

Sik-Ho Tsang
2 min readDec 27, 2023
Display results of feature extraction and classification with GUI

Cardiac Sound Classification Using Mel-Frequency Cepstral Coefficients (MFCC) and Artificial Neural Network (ANN)
MFCC+ANN
, by Universitas Gadjah Mada Yogyakarta
2018 ICITISEE (Sik-Ho Tsang @ Medium)

Heart Sound Classification
2013 … 2023 [2LSTM+3FC, 3CONV+2FC] [NRC-Net] [Log-MelSpectrum+Modified VGGNet] [CNN+BiGRU] [CWT+MFCC+DWT+CNN+MLP]
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  • MFCC is used as features extracted from heart sound.
  • ANN is used as classification model with MFCC as input.

Outline

  1. MFCC+ANN
  2. Results

1. MFCC+ANN

1.1. MFCC

MFCC

MFCC is extracted from the heart sound by the above stages such as FFT and DCT.

1.2. ANN

ANN

ANN with 1 hidden layer and the number of neurons as much as 17 and the activation function of logsig = 1/1 + exp (-n) also the number of epochs 1000, is used.

2. Results

Results

Where in identifying 13 types of apex heart sounds reached 92% in previous studies because 11 types of heart sounds were classified correctly.

However, 2 types of abnormal heart sounds cannot be classified correctly, because both types have almost the same characteristic features.

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Sik-Ho Tsang

PhD, Researcher. I share what I learn. :) Linktree: https://linktr.ee/shtsang for Twitter, LinkedIn, etc.