https://github.com/xigh/spectrogram

Taking an audio signal (wav) and converting it into a spectrogram. Written in Go programming language.
https://github.com/xigh/spectrogram

dft fft golang hamming-window image png pre-emphasis spectrogram wav

Last synced: 10 months ago
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Taking an audio signal (wav) and converting it into a spectrogram. Written in Go programming language.

• Host: GitHub
• URL: https://github.com/xigh/spectrogram
• Owner: xigh
• License: bsd-3-clause
• Created: 2018-09-05T10:30:28.000Z (over 7 years ago)
• Default Branch: master
• Last Pushed: 2021-05-16T21:22:39.000Z (almost 5 years ago)
• Last Synced: 2025-04-03T22:23:38.941Z (11 months ago)
• Topics: dft, fft, golang, hamming-window, image, png, pre-emphasis, spectrogram, wav
• Language: Go
• Size: 10.9 MB
• Stars: 45
• Watchers: 3
• Forks: 6
• Open Issues: 1
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

          
# Spectrogram

Taking an audio signal (wav) and converting it into a spectrogram. Written in Go programming language.

![example](data/mediawen.png "example of spectrogram")

# Install

git clone https://github.com/xigh/spectrogram

# Example

python3 sine_wav.py && ../../xigh/spectrogram/spectrogram -hamming -hideavg -bins=256 sine.wav

![example](data/sine2.png "example of sine spectrogram")

# Usage

  ./spectrogram [options] input_file.wav

```

-preemp float64

    set pre-emphasis parameter (0 means no pre-emp)

-rectangle

    disable hamming window support

-BG0 string

    set background color 0 (default "000000")

-BG1 string

    set background color 1 (default "333")

-BG2 string

    set background color 2 (default "447744")

-FG0 string

    set forground color 0 (default "0972a2")

-FG1 string

    set forground color 1 (default "6b5f7e")

-RUL string

    set rulers color (default "a0b0c0")

-bins int

    set freq bins (default 512)

-dft

    use dft instead of fft

-height int

    set height (default 450)

-hideavg

    hide average

-hiderulers

    hide rulers

-length int

    set number of samples [0 means all]

-offset int

    sey begin of samples

-out string

    set output filename (default "out.png")

-ratio float

    set ratio (default 0.8)

-width int

    set width (default 2048)

```