On Tue, Jun 12, 2012 at 3:36 PM, Bruce Perens <br...@perens.com> wrote:
> U.S. Amateurs are allowed to transmit incidental music as part of repeating
> NASA spacecraft communications. The rule says "space shuttle", but I'd
> imagine that this is an error and other space vehicles are allowed.

When I first got the CELT codec (now part of OPUS), a codec for high
quality low latency audio at bitrates ... well.. more suited for
SHF... running over the air (via GNURADIO) I contemplated applying for
a variance in order to do a concert  with the orchestra split across
town with the performers linked via amateur radio.

One of the things that commercially available Internet does poorly is
providing consistently very low latency and even paths within a city
may get routed around the country if availability puts your sites on
separate providers.  With a SHF radio link, a low latency codec, and
some relaying you could easily have latency for performers 30 miles
apart as low as 30 feet apart. This is _much_ harder to do over the
public internet.

My though is that music is itself a valid form of human communication—
and that the regs in this area are antiquated and are mostly intended
to address broadcasting or non-communicative/interactive uses that
would compete with the commercial services, and that there is no
particular purpose or public interest in singling out music (and
doubly so, for this and many other regulatory restrictions in the SHF
and above space with is underutilized and well suited to spacial reuse
thanks to directional antennas).

I never got around to working out the details, too many other things
to work on that don't require setting up antennas and coordinating
with regulatory bodies!  But I think if people want to experiment with
this kind of thing they shouldn't be afraid of applying for the
variances... and while codec2 is probably not a grand idea for
satisfying music the point of having these things (and amateur radio
itself) is experimentation and discovery.

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