Marnok.com wrote:
I just bought some (fairly cheap) IR stereo headphones. They work ok, but
with a very audible hiss even at very low volume when there is no sound from
the source (PC). This could quickly get annoying. I wondered if anyone could
tell me, is it that I just have a poor quality product or is this sort of
noise somehow inherent in the technology?
Thanks for any help.


You get what you pay for? I've got a pair of Philips cheapies that use
analogue modulation on IR, they're sitting in the cupboard waiting to
get thrown out, they sound that bad. Just about useable for low fidelity
speech, IMO.

In theory, digital transmission using IR can be made as clean as CD or
DVD. In practice, it's not cheap or easy to do it that way.

--
Tciao for Now!

John.