![](https://csdnimg.cn/release/download_crawler_static/10206722/bg1.jpg)
MIRtoolbox 1.6.1
User’s Manual
Olivier Lartillot
Aalborg University, Denmark
Department of Architecture, Design and Media Technology
December, 7th, 2014!
MIRtoolbox 1.6.1 User’s Manual ! 1
![](https://csdnimg.cn/release/download_crawler_static/10206722/bg2.jpg)
TABLE OF CONTENTS
Table of contents 2
1. Introduction 8
Conditions of Use 8
Please Register 8
Documentation and Support 8
Background 9
MIRtoolbox Objectives 10
MIRtoolbox Features 11
Insta"ation 14
Help and demos 16
MIRtoolbox Interface 17
2. Basic Operators 23
miraudio 23
mir#ame vs. ‘Frame’ 27
mirfilterbank 30
mirenvelope 34
mirspectrum 41
mircepstrum 49
mirautocor 53
MIRtoolbox 1.6.1 User’s Manual ! 2
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* 59
mirflux 60
mirsum 65
mirpeaks 67
mirsegment 72
mirplay 75
mirsave 77
mirlength 79
3. Feature Extractors 80
3.1. Dynamics 80
mirrms 80
mirsegment$..., ‘RMS’% 82
mirlowenergy 83
3.2. Rhythm 85
mirfluctuation 85
mirbeatspectrum 88
mironsets 90
mireventdensity 98
mirtempo 99
mirmetre 106
MIRtoolbox 1.6.1 User’s Manual ! 3
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mirmetroid 109
mirpulseclarity 111
3.3. Timbre 114
mirattacktime 114
mirattackslope 116
mirattackleap 118
mirdecreaseslope 120
mirduration 122
mirzerocross 123
mirro"o& 125
mirbrightness 127
mircentroid, mirspread, mirskewness, mirkurtosis, mirflatness, mi'
rentropy 129
mirmfcc 130
mirroughness 133
mirregularity 135
3.4. Pitch 137
mirpitch 137
mirmidi 142
mirinharmonicity 143
3.5. Tonality 145
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mirchromagram 145
mirkeystrength 149
mirkey 152
mirmode 155
mirkeysom 157
mirtonalcentroid 159
mirhcdf 160
mirsegment$..., ‘HCDF’% 161
4. High'level features 162
4.1. Structure and form 162
mirsimatrix 162
mirnovelty 168
mirsegment$..., ‘Novelty’% 172
4.2. Statistics 174
mirmean 174
mirstd 174
mirmedian 174
mirstat 175
mirhisto 176
mirzerocross 177
MIRtoolbox 1.6.1 User’s Manual ! 5