Another update to EbSynth, now at version 0.7a

 http://abelian.org/ebnaut/ebsynth.shtml

Now compensates properly for changing delay of the output
buffer as the sample rate wanders.  A temperature change that
previously produced a 30 degree output change now only affects
the phase by about 0.3 degrees. The residual is a 2nd order
effect proportional to the rate of change of sample rate.

I've noticed a couple of sound card input overruns on the RPi
when the CPUs are very busy.  0.7a assigns itself a real-time
scheduling policy at high priority.  It remains to be seen if
that fixes the overruns.

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Paul Nicholson
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