Br-Waveform¶ ↑

Generate waveform using wav-file gem to read converted wav file by ffmpeg

Update¶ ↑

Rewrite wav reader to be able to read GBs files without memory overload by reading and calculating and adding bars at the same time

Install¶ ↑

gem install br_waveform

Usage¶ ↑

require 'br_waveform'
waveform = BrWaveForm.new("my_song.mp3")
waveform.generate "my_song_waveform.png"

Params¶ ↑

• filename. Output filename (waveform.png) (required)

• height. Height of the waveform in pixel. Default: 60

• numberOfBar. Total bar generated from wav file. Default: 100

• barWidth. Set bar width. Default: 4

• spacing. Set bar spacing. Default: 2

• flip. Set bar flip. If flipped, the bar will be drawn from the top, otherwise from the bottom. Default: false

License¶ ↑

Copyright © 2015 *Brian Doan*

This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA