Brailab PC v3.2 is here, and it makes a big change. It sounds like a real unit now! With a speaker.
The emulated BraiLab has always been a little dull — boxy, distant, a bit like a
voice coming through a telephone. That turned out to be a real, measurable fault,
and it is fixed!
A third of the sound we produced was below 250 Hz.
A recording of genuine PCF-8200 hardware has 1.5% of its energy down there.
We had 23%. None of it was audible as bass — a small speaker cannot reproduce
it — but it filled up the available loudness, so everything from 500 Hz upward
came out 5 to 17 dB quieter than it should. That is what made the voice sound
muffled: not a missing top end, but a bottom end that should never have existed.
No real BraiLab produced it either. The chip drives an amplifier through a
coupling capacitor and then a small speaker, and neither passes anything near
there. We had simply never modelled that part of the machine. Now we do, and it's beautiful.
https://github.com/tgeczy/Brailab-wrapper/releases/download/v3.2/brailab-3.1.5.nvda-addon
https://github.com/tgeczy/Brailab-wrapper/releases/download/v3.2/brailabEmulated-3.2.1.nvda-addon
https://github.com/tgeczy/Brailab-wrapper/releases/download/v3.2/BraiLabPC-portable.zip
https://github.com/tgeczy/Brailab-wrapper/releases/download/v3.2/pcf8200-python-1.1.1.zip