On Jul 8, 6:17 pm, james wrote:
Actually he poses a very interesting question that relates to the
performance of the noise gate and it's response to rapid changing
background noise levels.
I think it is very germane to the evaluation of your product.

The noise gate is not dynamic. It's set at the time of installation to
the anticipated ambient background noise level. It certainly does have
limitations. The S/N ratio of the audio should be high in order to
take full advantage of the gate. This means that talking two feet away
from the mic will not work well. The noise gate is extremely effective
when set with the user speaking directly into the mic from perhaps a
distance of an inch or two. This scenario allows a very large signal
to noise ratio. By setting the gate this way... significant background
noise can be blocked during low/non speech periods. The gate response
time is different depending on which way the gate is going. The time
it takes to break over the gate (quiet to speaking) is around 1mS. The
decay (speaking to quiet mute) is gradual and has been set to around
0.5S. The decay is not an instant transistion (like the break over).
This was done purposely to avoid any choppy effect from muting too
rapidly during normal speech.
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