How my PHP web app can convert a video to an image of sound wave?

2
votes

I've got a lot of videos on a video platform called Brightcove. I can programmatically download them through an API into my web application. How can I programmatically create an image of a soundwave for the audio tracks in a movie? Are there open source libraries to do this? I'm using Linux, Apache, MySQL and PHP.

Additional Notes

Also, my videos can be in a wide range of formats...avi, mpg, mp4, flv etc...

1
phpaudiovideo

1 Answers

2
votes

Check out these answers - I think they are just want you want. (They worked for me). To get the audio out of the video: PHP Extract audio from video

Then generate the waveform: http://andrewfreiday.com/2010/04/29/generating-mp3-waveforms-with-php/

Hope these help - they sure helped me.