https://github.com/adzialocha/spectral-centroid-splitter

Splits a wav file into small fractions and sorts them after a spectral-centroid analysis
https://github.com/adzialocha/spectral-centroid-splitter

Last synced: 8 days ago
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Splits a wav file into small fractions and sorts them after a spectral-centroid analysis

• Host: GitHub
• URL: https://github.com/adzialocha/spectral-centroid-splitter
• Owner: adzialocha
• Created: 2015-07-14T19:31:49.000Z (over 9 years ago)
• Default Branch: master
• Last Pushed: 2015-07-14T21:48:39.000Z (over 9 years ago)
• Last Synced: 2024-04-15T04:26:45.911Z (7 months ago)
• Language: Python
• Homepage:
• Size: 176 KB
• Stars: 0
• Watchers: 3
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
# spectral-centroid-splitter

Splits a uncompressed wav file into small fractions and sorts them after a [spectral-centroid](https://en.wikipedia.org/wiki/Spectral_centroid) analysis.

Writes fractions as wave audio file, json data for further processing and png fft analysis plot figure in specified output directory.

### Requirements

* python 2.7

* matplotlib 1.4.3

* numpy 1.9.2

### Usage

```

usage: spectral-centroid-splitter.py [-h] [--duration [ms]] [--sort-grid [hz]]

                                     [--output-dir path]

                                     input-wav-file

positional arguments:

  input-wav-file     input wave file path (uncompressed)

optional arguments:

  -h, --help         show this help message and exit

  --duration [ms]    duration of one wave fraction (in milliseconds)

  --sort-grid [hz]   sort grid after spectral analysis (in hz steps)

  --output-dir path  output directory path

```

### Example

`python spectral-centroid-splitter.py test.wav --duration 50 --sort-grid 100`

```

Name                  "test"

Duration              4.595021s

Sample-Rate           16bit

Frame-Rate            48000hz

Fraction-Size-Frames  2397

Fraction-Sort-Grid    100

Fraction-Duration     0.050000s

Fractions-Count       92

```

Example output file @ `./out/1300/test_out_2.png` (spectral centroid at around 1300hz)

![Example](https://github.com/marmorkuchen-net/spectral-centroid-splitter/blob/master/example.png)