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The Leonardo correction
applied to Audio prothesis
An Audio prothesis is an extremely sophisticated device capable in a
very tiny size to amplify and correct the sound perceived. Using some
of the Leonardo algorithms, it is possible now to further correct the
sound for the prothesis using the time domain correction. Tiny ICs created
especially may seriously improve the "Recognition Factor"
of such device in the future, as they already did for cellphones or
small MP3 players.
The Leonardo Loudspeaker
Correction
A loudspeaker crossover, either passive or active, is creating a serious
time distortion, definitively ruining its proper treansient response.
By using the Leonardo technology, AudioNetworks already corrected some
of the Goldmund line of high-end speakers.
Interestingly enough,
even some of the inherent resonances of the loudspeaker enclosure and
drivers may aslo be corrected using the Leonardo technology. With such
a capability, recreating a different speaker, either properly corrected
or "typed" differently will allow very inexpensive speakers
to simulate large and accurate ones at low cost
The Microphone Enhancement program
Inexpensive Microphones used for Internet communication are suffering
limitations which damage the performance of associated Voice Recognition
applications and seriously limit the "Recognition Factor"
in Internet Telephony, where it is the most critical for a wider acceptance.
The difference between such a microphone and the absolute best possible
microphone is not only a difference in its frequency response as most
users believe. More hidden parameters like resonant coloration, time
response and improper transient behavior are more distressful for the
"Recognition Factor" than simple frequency response irregularities.
Usual "presence enhancement" applied in the frequency domain
are inadequate to correct these parameters, and usually further degrade
them. What most engineers working on compression techniques seems to
ignore is that some of the principles they use are simply not fitting
with some fundamental Physics principles.
In addition, knowing
the exact behaviour of any microphone in amplitude and time response
allows to easily apply to any other microphone a "transfer function",
simulating the desired microphone. This may have considerable interest
for recording studios in order to build a library of microphones without
spending the big associated investment.
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