Ok so I don’t use Linux or run Jack in Blender (for syncing a DAW), and Blender doesn’t have the most basic sound feature (unless you count waveforms). Blender doesn’t show audio metering! Which is odd given how great the vision metering is!
Recently I knocked up an example of sound editing in the VSE, you can see it here:
But I wondered how you could I mix a variety of sounds together so that they all balanced out against each other while not exceeding the top most limit for digital audio, ie. 0db
Well I have a portable version of Audacity from here http://download.cnet.com/Audacity-Portable/3000-2170_4-10608458.html and I wondered if I could just pass my Blender mix through? Well it turns out that you can, you just need to check that your levels match between the 2 apps.
In this example I have Audacity running in the background with the mic button active for loop through. In the preferences I turned off overdub and loop through but checked that the input was from Stereo Mix not Mic. Then I dragged the meter bar out of the main window and resized it down the side. I shrank Blender up a bit I guess I could also overlap the Audacity output meter as it is inactive, we only want to see the input meter here. Once your mix is done, export it as a Blender Mixdown (see tutorial above) and import it into Audacity for a bit of compression, that is lifting the silent parts and squashing the lound parts automatically. This makes podcast conversation easier to listen to ;)