Re: NEC to further develop noise suppression technology

Started Feb 17, 2011 | Discussions thread
Rolo King
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Re: NEC to further develop noise suppression technology
In reply to DavidC, Feb 17, 2011

Might it be from some coils inside? Most of my power supplies and adapters make high pitched noises: PC or cell phone, old or new. Even some PC motherboards do it. Many people don't hear it so you can sell your stuff to them.

Anyway, this sound suppression technology, it needs to know how a lens and its mechanical system sounds like. The problem is, won't the mechanism's sound change over time?

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