Convert Video to mp3
Let's all be honest for a moment: we've all ... not paid for ... music. Whether it was via a file sharing app like Kazaa or Napster, or it was downloading and seeding on bittorrent, or maybe even downloading a music video and ripping its audio, we've all pulled some "gangsta shit" to get a track or two. You should only feel ashamed if it was Nickleback. And hey, there are times when you legitimately want to pull audio from a video...though I can't think of any.
If you do want to pull the audio of a video file, for whatever reason, you can do so easily with ffmpeg. Let's use ffmpeg to take a downloaded YouTube video and rip its audio into and MP3:
ffmpeg -i music-video.webm -vn -ar 44100 -ac 2 -ab 192 -f mp3 music.mp3
Using the command above, we take the source video and output its audio to mp3 with a 192kb/s bitrate.
There are in-browser tools and websites you can use to rip audio from YouTube or other video files, but ffmpeg is quick, simple, and hassle free. You can also replace "mp3" with other audio formats if you so choose!
![JavaScript Promise API]()
While synchronous code is easier to follow and debug, async is generally better for performance and flexibility. Why "hold up the show" when you can trigger numerous requests at once and then handle them when each is ready? Promises are becoming a big part of the JavaScript world...
![Serving Fonts from CDN]()
For maximum performance, we all know we must put our assets on CDN (another domain). Along with those assets are custom web fonts. Unfortunately custom web fonts via CDN (or any cross-domain font request) don't work in Firefox or Internet Explorer (correctly so, by spec) though...
![HTML5 download Attribute]()
I tend to get caught up on the JavaScript side of the HTML5 revolution, and can you blame me? HTML5 gives us awesome "big" stuff like WebSockets, Web Workers, History, Storage and little helpers like the Element classList collection. There are, however, smaller features in...
![jQuery topLink Plugin]()
Last week I released a snippet of code for MooTools that allowed you to fade in and out a "to the top" link on any page. Here's how to implement that functionality using jQuery.
The XHTML
A simple link.
The CSS
A little CSS for position and style.
The jQuery...
In case anybody is not into command line, there is a UI for this conversion,
https://addons.mozilla.org/en-US/firefox/addon/media-converter-and-muxer/
Thanks for saving my time!
"ffmpeg -i music-video.webm -vn -ar 44100 -ac 2 -ab 192 -f mp3 music.mp3"above command helped to convert video to audio (Ubuntu machine).