Friday, March 13, 2009

Mac Mini Podcast Producer setup

Part of my job at the university is to do digital media for an engineering grant dealing with water.  At conferences I have been capturing the Power Point presentation with the audio of the presenter.  For two weeks after the conference I take the captured video, edit it on Final Cut Pro and export it to be encoded in Compressor in either podcast or streaming video.

Now we are wanting to have the podcasts at the end of each day of the conference.  To accomplish this we have created a setup with three Mac Minis, one running server, the other two are an agent and client.  The client will capture the video and send it to the server for processing.  Instead of using Podcast Capture we are using Quicktime Pro and an Automator script.  The script starts the capture, creates a metadata plist using the current day and time for the name of the podcast, pauses waiting for a click to end the capture and send it to the server.

Quicktime Pro is being used because it automatically saves the file.  If there is some failure on upload to the server, at least there will be a copy of the presentation that can be processed at a later date.

This setup has not been used at a conference yet.  It will be used at a conference in the middle of April in San Francisco.  In real time testing the setup works well.  

The equipment being used are three Mac Minis, one Airport Extreme, 1G miniStack hard drive Epiphan VGA2USB LR, video splitter and a portable rack of audio equipment.  The minis, airport and hard drive are also going to be incorporated in a 6U rack case that has wheels and a pull out handle.  This should make it easy to take the equipment on as carry on luggage when flying instead of shipping to the site.  I am hoping this works when in the field because we will be traveling to conferences all over the world where there are problems with clean water.

3 comments:

Unknown said...

Thank you for sharing the details of your system. Our group is looking to record A/V from a live camera, in sync with video from a Powerpoint presentation. Essentially we need to output a video file with the Powerpoint Presentation as the background, and the presenter in a small PIP window in front. Is that possible with Podcast Producer?

Thanks again!

Robert Croy said...

With the current version of PcP you are not able to do this "live". With the new version that will be with Snow Leopard you will be able to have two video inputs next to each other. Another way of doing what you want to do is use either Wirecast or Boinx TV. You are then able to have either one or the other video as the background and the other as a picture in picture or you can switch which video is in the forefront. I have just recently gotten Boinx TV but have not been able to play with it too much. One nice feature of it is that you can send the finished video straight to Podcast Producer from the export. Over the summer I am hoping to develop a plan to use it with all of the video presentations that I tape.

Unknown said...

Hi Robert,

Thank you for this technical information. I am planing to follow your tips of "3 macmini's setup for conference, but instead I am planing to use 2 macMinin's on Server-Agent basis and use as a Client MacBook pro 13" recently released n market by Apple.
Any idea that this combination will work?
Many thanks.

Lavdim Cena (UK)