https://github.com/atd/paperclip_waveform

Paperclip post-processor that generates a waveform image from audio files.
https://github.com/atd/paperclip_waveform

Last synced: 10 months ago
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Paperclip post-processor that generates a waveform image from audio files.

• Host: GitHub
• URL: https://github.com/atd/paperclip_waveform
• Owner: atd
• License: mit
• Created: 2012-12-04T21:30:35.000Z (over 13 years ago)
• Default Branch: master
• Last Pushed: 2012-12-27T16:10:42.000Z (over 13 years ago)
• Last Synced: 2025-08-20T04:35:47.855Z (10 months ago)
• Language: Ruby
• Size: 236 KB
• Stars: 10
• Watchers: 1
• Forks: 2
• Open Issues: 0
• Metadata Files:
  • Readme: README.rdoc
  • License: MIT-LICENSE

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README

          
= Paperclip Waveform

Paperclip Waveform is a Paperclip post-processor. It generates a png file

with the waveform from an audio attachment, using the fantastic waveform gem https://github.com/benalavi/waveform

== Usage

Waveform depends on ruby-audio, which in turn depends on libsndfile.

Build libsndfile from (http://www.mega-nerd.com/libsndfile/), install it via apt:

  sudo apt-get install libsndfile1-dev

libsndfile in macports, etc...

ffmpeg is also required to convert original files to WAV

  sudo apt-get install ffmpeg

Then add the gem to your Gemfile:

  gem 'paperclip_waveform'

And the style to your audio:

  class Audio < ActiveRecord::Base

    has_attached_file :file,

                      styles: { waveform: { format: :png, convert_options: { color: :transparent } } },

                      processors: [ :waveform ]

Take a look at https://github.com/benalavi/waveform/blob/master/bin/waveform for available options