demo_8.model training:
- 1000 quiet
- using https://www.youtube.com/watch?v=nMfPqeZjc2c and https://www.youtube.com/watch?v=UnhpCJ5tkW4
- on decent speakers
- 500 palm
- gatethresh~0.3/0.35,
- gaterelease~0
- 500 mechanical pencil
- gatethresh~-0.3/0.35,
- gaterelease~0