Acoustic vario
Enabled only when you have a pressure (barometric) sensor - external or internal.
Lift sounds: normal beeping, the frequency is getting higher linearly up to 6m/s (so that should result in ‘log’ sound, being more sensitive near low values). The frequency of the beep doesn’t change during the beep. The speed of beeping is also getting faster linearly. The range is from E’‘-E’’’.
Long averaging interval settings: the color of the tone changes once you get in the 0.5-1.5m/s range (averaged in 10s), and then from 1.5-2.5 it starts doing ‘tik-tak’, 2.5-3.5 ‘tik-tak-tak’ etc. This can be turned off if you don’t like it.
Weak lift buzzer, which is a ‘double beep’ on the same tone. It beeps in the (-0.5, lift threshold) range. It beeps only when the short average > long average, as to avoid sudden double-beeps during lift and also suggest that you are moving to a faster-lifting air. It seems a weird rule, but seems to work quite well.
Sink alarm is a double beep, second tone being lower than the first one. The second tone is getting a semitone lower for each 0.5m/s. The second tone is also getting slightly longer.
Disconnection alarm: A diminished 7 every 30s (four fast decreasing successive tones) - this indicates missing barometric data; when you have an external sensor and the connection is lost.