Audio lost in quicktime export

Question

In an older thread several users mentioned a problem of loosing audio when exporting to Quicktime. I just had the same problem and found a solution.
I placed a video that contained music audio in a master slide to run in the background. I then created animations of text boxes to put words over the video, and set timings for the words using "Record Slideshow" in the "Play" menu. Everything worked great until I exported to Quicktime. When I exported, the video continued playing but the sound stopped as soon as the first animation played.
Here's the solution that worked for me:
I extracted the audio from the video. This can be done in iMovie or other inexpensive video editing programs. I silenced the video's audio by selecting the video, then clicking the Quicktime tab in the Inspector, and reducing volume all the way. In Inspector I went to the Document tab, clicked on media, and dragged the extracted audio into media box. I then recorded the slideshow. Now the audio played during the entire slideshow when I exported to Quicktime.

Answer 1

I WAS WRONG. But there is a solution... record a screen movie using Quicktime (System 10.7 and 10.8).
Open Quicktime, in the file menu select "New Screen Recording," run your Keynote Presentation and the movie with sound will record if you use Soundflower.
Soundflower is a free program that can record system sound with QuickTime X, download at <http://cycling74.com/products/soundflower/>
In "Sound" system preference, set the output to "Soundflower (2ch)". (If you enable "Show volume in menu bar" you can Option-Click the volume icon in the menu bar to select audio devices.)
In QuickTime X's screen recording window, click the triangle near the top-right to select "Soundflower (2ch)" for the audio inout, then start recording. Keep the monitor volume slider in the recording window all the way to the left or else there will be echo on the recording.
You won't hear the sound while recording because it is going directly into QuickTime. If you beed to listen while recording, you will also need Audio Hijack Pro <http://www.rogueamoeba.com/audiohijackpro/> Hijack the application producing the sound and use the "Auxiliary Device Output" effect to send audio to "Soundflower (2ch)", then make the recording.
When using Soundflower to send audio to and from applications, you may find that you are not able to send audio through another device to monitor audio output. In such situations you can use Soundflowerbed, an application that resides in the Finder’s Menubar allowing you to tap into Soundflower channels and route them to an audio device. To start the Soundflowerbed menu app go to the Soundflower folder in /Applications and within it open Soundflowerbed.app.