There is a trick to throwing a blanket over your computer. DO NOT BLOCK ANY AIR HOLES OR VENTS. Since it's the air holes and vents making the noise, you can work that out. I'll watch.
It's not unusual for people to figure out a way to move the computer out of the room...or use a machine that doesn't make noise.
you be able to evaluate that...performance
Oddly no. We can certainly tell you if you meet ACX AudioBook technical standards (Volume shall be this and so, etc.) but theatrical quality is entirely between you and ACX. As in the above examples, we all heard something different. (I think an elephant is very like a snake.)
I can tell you what I did if that was helpful.
We have a custom voice filter called LF Rolloff for Speech. It reduces
the bass in the presentation in a very precise way. A similar tool is common in field film shoots to get rid of natural rumble and some wind sounds.http://www.kozco.com/tech/audacity/Docu ... ch.xml.zip
Unzip it and install it in the Audacity Equalizer.Adding Custom Audacity Equalization Curves (LF-rolloff as an example)
-- Select something on a timeline.
-- Effect > Equalization > Save/Manage Curves > Import
-- Select LF_rolloff_for_speech.xml > OK. (it won't open a ZIP. You have to decompress it)
-- LF rolloff for speech now appears in the equalization preset curve list.
That left one of the motor hum tones which I got rid of with a custom tone remover (notch filter).
Select the whole show by clicking just above MUTE. Effect > Notch Filter.
Then simple noise reduction.
Drag-select a room-tone only portion of the show and Effect > Noise Reduction: Profile.
Select the whole show by clicking just above MUTE.
Effect > Noise Reduction: 9, 6, 6 > OK.
Then boost the volume a little.
Effect > Normalize...
And you got what I got. So no, it's not simple noise reduction and most of those steps will probably vanish if you move the computer (hint hint).