Every sound you want to hear goes through this module: it sends the signal to the computer's sound card. It sums the polyphonic voices, turns volts into audio level, and protects your ears as well as your speakers.
Inputs
- L: left channel.
- R: right channel. If nothing is patched into R, it copies the signal from L (a centered sound).
Control
- Gain: output volume, from 0 to 1. With many voices playing at once, the sum can get loud: turn down the gain if the sound distorts.
What happens inside
- The voices of each input are added up.
- Volts are turned into audio level: ±5 V maps to full level.
- A very low filter removes any DC offset (a constant, silent shift that would waste headroom).
- A soft saturation (
tanh) rounds off the peaks instead of chopping them flat: the sound saturates gradually, like a tube amp, and never makes harsh clicks.
Try this in the inspector
Watch the L input while you play a chord of several notes: the total amplitude grows with the number of voices. Turn Gain all the way up with a rich sound and listen to the soft saturation round off the sound; turn it down to get a clean sound back.