[Fluxus] Zero output from (gh), values in (ga)

[Chris Targett]

I've just re-built Racket and Fluxus on Ubuntu 13.04, Git commit d1c08d22.

Everything appears to be working, (run-tests #t) runs fine, All of the
little parts of the sound system seem to be working and cooperating fine
(pulse/jack/etc).

Except I'm getting 0.0 back from (gh). While (ga) has values. Perhaps it's
related to the "jack_client_new: deprecated" message I get in the console?

fluxus> (start-audio "system:capture_1" 512 44100)
jack_client_new: deprecated

fluxus> (gh 0)
0.0

fluxus> (ga)
#(-0.4440443217754364 -0.29032257199287415 -0.22516556084156036
-0.181066319346
42792 -0.11264381557703018 -0.03277687728404999 0.07254249602556229
0.1752067655
324936 0.19193090498447418 0.13776054978370667
...
52534770965576 -0.47334209084510803 -0.3716239035129547
-0.29828789830207825 -0.
14902187883853912 -0.06976531445980072 -0.03253272920846939
0.05224768817424774
-0.012115848250687122 -0.07473982870578766 -0.030487991869449615 0.0 0.0
0.0 0.0)

I've tried setting the gain to various numbers from 0 to 1000000, but that
doesn't seem to make a dent.

Is there another step I've missed? Has the audio api changed since I last
used Fluxus 3-4 years ago?

Cheers,

Chris Targett
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