Manually recorded audio is being truncated at beginning

Question

I'm recording narration for a Captivate 3 movie of a software
demo. After I record the audio for a slide, I use the built-in
audio editor to replace the "ramp-up" (noise) at the very beginning
of the recording (usually about 0.7 seconds before the voice
speaks) with silence ("Insert Silence"). This technique has worked
quite well for several demos that I have created, and during
Preview my voice begins to speak about 0.7 seconds after the slide
appears. (This is what I want -- let the user first see the slide,
then hear the description. It "feels" quite natural.)
Today, however, although I have been doing the same thing in
the Audio Editor, I find that when I click OK and return to the
slide this silence at the beginning of the audio has been
discarded. In Preview, as soon as the slide displays the voice
immediately begins to speak; this "feels" too rushed. And, indeed,
if I edit the audio (Audio > Edit Timing > Slide) I find that
the silence that had been at the beginning no longer exists.
I can fix the audio timing, of course, by moving the audio
track to begin at 0.7 seconds rather than 0.0 seconds, but that's
one more manual operation to perform.
Any idea why this suddenly began happening? And how to
prevent it from happening?
Thanks,
Bill

Answer 1

Thanks, Rick. I am recording audio individually for each
slide, and I find an annoying "click" at the very beginning of each
recording as the audio signal starts its ramp-up to the first word
that I speak. I like to eliminate this click, so I select the
waveform from 0.000 till just before the voice starts, and insert
silence. I haven't found any problems in my headphones from doing
so.
In previous movies, Captivate retains this initial silence
(usually about 0.5 to 0.7 seconds) in the audio recording. In my
current movie, though, C3 is discarding the silence, and the audio
track starts immediately with my first word. Thus, I need to shift
the audio track to begin at 0.5 seconds into the slide...another
manual step on each slide.
Bill