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audio-event-analysis-and-feature-extraction-using-matlab

# Audio processing in MATLAB SVM based gunshot detection and classification using hand designed features. This repo contains SVM based audio event detection and classification. It has dataset including positives and negative examples. The main is to detect the gunshot in an audio signal and classify them into two type of gun i.e., sniper and rifle. # How to use the codes? To run the code please compile the **"classify.m"** file which loads the precomputed feature matrix from the given files and produce the result. If you want to extract the feature from scratch, that is also possible. Below are the features used for training, one can also add other features that represent more enriched information in each signal. # Features Extraction This project extracts feature matrix to train support vector machine. The feature used to represent the audio bag are given below: (1) **Spectral Roll-Off** (2) **energy** (3) **Zero Crossing Rate** (4) **Spectral Roll-Off** (5) **Spectral Centroid** (6) **Spectral Spread** (7) **Volume** (8) **Spectral Flux** Other than the presented features it is easy to add **"IMFCC"** coefficients to improve the results. The see how the feature extraction works please go through **"all_parameters.m"** file.

cs-books

超过1000本的计算机经典书籍、个人笔记资料以及本人在各平台发表文章中所涉及的资源等。书籍资源包括C/C++、Java、Python、Go语言、数据结构与算法、操作系统、后端架构、计算机系统知识、数据库、计算机网络、设计模式、前端、汇编以及校招社招各种面经~

cvxpy

A Python-embedded modeling language for convex optimization problems.

dsatools

Digital signal analysis library for python. The library includes such methods of the signal analysis, signal processing and signal parameter estimation as ARMA-based techniques; subspace-based techniques; matrix-pencil-based methods; singular-spectrum analysis (SSA); dynamic-mode decomposition (DMD); empirical mode decomposition; variational mode decomposition (EMD); empirical wavelet transform (EWT); Hilbert vibration decomposition (HVD) and many others.

github-slideshow

A robot powered training repository :robot:

inverse-filtering-of-room-acoustics

Implementing a paper in inverse filtering of room acoustics my Miyoshi, Kaneda, 1988

manim

Animation engine for explanatory math videos

manim_tutorial

Files to accompany postings at talkingphysics.wordpress.com on how to use manim

nlp-beginner

NLP上手教程

north37-0

Config files for my GitHub profile.

numerical_linear_algebra

Julia code for the book Numerical Linear Algebra

numericaloptimization_basicalgorithm

Optimization Algorithm: convex optimization; numerical optimization

padasip

Python Adaptive Signal Processing

pyroomacoustics

Pyroomacoustics is a package for audio signal processing for indoor applications. It was developed as a fast prototyping platform for beamforming algorithms in indoor scenarios.

rir-generator

Generating room impulse responses

sfs-matlab

SFS Toolbox for Matlab/Octave

soundfieldsynthesis

Matlab code for the book "Analytic Methods of Sound Field Synthesis"

thinkdsp

Think DSP: Digital Signal Processing in Python, by Allen B. Downey.

vast_dft

A code repository for the accepted paper entitled "Fast Generation of Sound Zones Using Variable Span Trade-Off Filters in the DFT-Domain".

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