Live / Real time audio hiss and background noise removal.
A chipcorder or romcorder is an audio recorder
/ player based on a chip, with
also includes a non volatile audio memory .
Even to day this audio memory data security
specifications are impressive, with no data loss in typical one
hundred years.
When connected to a PA system, the "hiss"
noise from the chipcorder while playing a message, should be
supressed, and at the same time the original signal has to be
kept in good shape.
Our live / real time , analogue strong pass audio filter will
do just that.
Idea and solution by Joar Falstad,
Jo Tech Service, lykkmarka 53, 7081 Sjetnemarka, NORWAY.
As a sub contractor we have now delivered an ISD-4004 based chip corder,
with our real time audio noise reduction hardware, to play different recorded messages, on a
new bridge in Norway.
We used it on a PA system with horn
speakers, and the result was good.
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A big company has now taken the same domain name . " jotech "
To protect our site and keep it seen on the internet ,
we'll continue to add nice pictures , mostly from Norway.
Norway