Adds a sound frequency controller to glider-instrumentation-sdk.nas,
used for the ilec-sc7. This allows:
- Simpler <sound>.xml files to integrate the glider variometer.
- More accurate frequency scaling (frequency scales exponentially with
vertical speed, so that perceived changes in pitch are linear with
vertical speed).
- Fixes that the variometer sound would not drop at negative vertical
speeds.
A Nasal library for implementing instruments that are specific for soaring.
This version supports:
+ Total Energy compensated variometers
+ Netto variometers
+ Relative (aka Super-Netto) variometers
+ Configurable dampener for simulating mechanical needles
+ Averager
+ Speed to fly computer
+ Speed Command variometer
+ Yaw string (it's an instrument, isn't it?)
