I recently upgraded from Presenter 6 to Presenter 7 (Version
7.0.1 Build 7404). Audio files that I have imported from old
presentations and newly-recorded audio seems to have a low
background buzz (almost like electrical interference). The "buzz"
itself is almost undetectable (i.e., it's "white noise") but
results in a noticeable and annoying pop or click sound when I
insert silence (i.e., the transition to or from the silence
generates the pop/click).
I notice from the waveforms that the audo tracks are not
centred around the mid-point line but are now shifted higher (hence
the transition from silence). I'm mystified because I never had the
problem with Presenter 6, I'm using the same hardware, and even the
old recordings that were fine in Presenter 6 have this same upward
amplitude shift when imported to Presenter7.
I'm still experiencing the same difficulty. A couple of
First, I realize now that the waveform in Presenter 6
represented mono sound, whereas the waveform(s) in Presenter 7 are
stereo. I don't know what, if any, impact this may have.
Second, I may be able to work around the "clicks" and "pops"
that occur at the transitions to and from "silence" if I can find
some way to insert white noise (at the same amplitude as the
background noise) instead of inserting silence. I suspect that I'll
have to copy and paste the white noise from elsewhere in the audio
Any thoughts? This is very frustrating to me since I was able
to get very professional sound from Presenter 6 and the transition
to Presenter 7 has been a step backward with respect to audio