Re: Camlynx answers.

On Apr 22, 10:22 pm, "Charles Tomaras" <toma...@xxxxxxxxxxx> wrote:
"Philip Perkins" <spami...@xxxxxxxxx> wrote in message

news:1177259320.712259.115440@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx



On Apr 22, 4:16 am, ric creaser <r...@xxxxxxxxxxxx> wrote:
On Apr 22, 1:14?pm, Philip Perkins <spami...@xxxxxxxxx> wrote:

On Apr 21, 5:37 pm, ric creaser <r...@xxxxxxxxxxxx> wrote:

The Ricsonix Camlynx units transmit in the 2.4gig unlicenced spectrum
much like your hands free house phone. It has a simular range, but
has
a wider bandwidth to send 44.1 sampled audio. Oleg is right, it is a
closed loop system between the transmitter and reciever, but that
allows a ?data channel back to the transmitter, letting you know when
you have a drop out.
Camlynx works very well inside, as it uses the walls and ceilings to
reflect signal.For exterior locations, you do need a line of sight
for
the antennas to see each other. If a cameraperson gets between you
and
the transmitter antenna, you may will have to move around to get line
of sight again.(you will know because you get a "beep" from your
mixer
when loss of signal occurs when you listen to camera return)
?At 2.4gig, the cycles are small, and the body can absorb up to 90db
of the signal strength.(microwave ovens work by exciting the water
molecules that resonate at this frequency by the way)
?The reason this is is because your body contains 70% water, so if
you
are very close to the antenna (within 3 ft) you may notice a dropout.
The transmitter antenna can be mounted up high on your shoulder to
compensate, and generally the camera is shoulder height, and I have
found in field tests it works well and you learn to accommodate it's
operation quickly.May I add, it's at a price point ?($2500.00) to
make
it attractive for general ENG type work.

Ric Creaser

I'm very excited about this product and look forward to trying one
out.
What about the latency of the system? ?How much delay should we
expect?

Philip Perkins- Hide quoted text -

- Show quoted text -

yes, ther is a latency running at 18mS for 44.1, and 24mS for 32 bit
sampling.
This equates to half a frame.
I have used it on a number of shoots so far, ranging from a daily
magazine (straight to air, no post) and general sound work, with no
problems or comments about it at all.
It takes a very good editor to pick one frame, let alone a half.
The issues with latency problems seem to result in mixing a analog mic
and a digital source together on one track, causing "phase" like
issues.
Ricsonix is bringing out a "inline delay" unit for this very problem.
It's a mic to line XLR adaptor that is powered by a 123 battery and
runs 60hrs, activated by an audio signal. It is switchable from 3mS,
6mS 12mS, throgh to 170mS. It's a A to D, then a D to A.
This unit will be available in a few months.
The Camlynx units will soon go into production and be selling in June.
Coffeysound has a demo unit to look at if your in LA.

Ric Creaser

Thanks for this info. Actually you are wrong about needing a very
good editor to see a frame out of sync--we have sync arguments up and
down the whole post food chain about + or - 1 frame all the time, and
adding a partial frame delay isn't a great thing in that it is usually
being added to some other sync error already (esp from various HD
cameras). But this delay is nothing compared to some other units
being touted for the same purpose. All the shooters I've shown the
Camlynx PDF to want one right now.

Just curious how anyone could be too excited given the extreme range and
line of site limitations mentioned? 30 or 40 feet defeats the purpose in
many instances. I'm regularly further out of range than that and I'm often
in another room or down a hall or around a corner mixing wireless subjects
unable to be in the same room with the camera person. I'm extremely
skeptical of this working well in any but the most perfect of conditions
given the description the manufacture has given. When as he says you get the
warning that your link is not functioning, one would not have the simple
fall back of going hard wire as those circumstances which caused the failure
would prevent it. If I can't get reliable operation through walls, doors,
automobiles and other such everyday production conditions I can't imagine
betting my sound on it.

For what I understood If you are inside a building mixing around the
corner from camera the signal will find its way bouncing around
ceilings & walls.
~
S.

.

Relevant Pages

  • Re: Camlynx answers.
    ... are very close to the antenna you may notice a dropout. ... compensate, and generally the camera is shoulder height, and I have ... It takes a very good editor to pick one frame, ... Ricsonix is bringing out a "inline delay" unit for this very problem. ...
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  • Re: Camlynx answers.
    ... The transmitter antenna can be mounted up high on your shoulder to ... compensate, and generally the camera is shoulder height, and I have ... It takes a very good editor to pick one frame, ... Ricsonix is bringing out a "inline delay" unit for this very problem. ...
    (rec.arts.movies.production.sound)
  • Re: Camlynx answers.
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    (rec.arts.movies.production.sound)
  • Re: Camlynx answers.
    ... The transmitter antenna can be mounted up high on your shoulder to ... compensate, and generally the camera is shoulder height, and I have ... It takes a very good editor to pick one frame, ... Ricsonix is bringing out a "inline delay" unit for this very problem. ...
    (rec.arts.movies.production.sound)
  • Re: Camlynx answers.
    ... a wider bandwidth to send 44.1 sampled audio. ... The transmitter antenna can be mounted up high on your shoulder to ... compensate, and generally the camera is shoulder height, and I have ... It takes a very good editor to pick one frame, ...
    (rec.arts.movies.production.sound)