After sound changes in 0.18, robots sound too loud and annoying.
Here's a patch to make them sound same as vanilla robots:
https://gist.github.com/matrix47/6469ab ... fa8216466f

apparently, this has been fixed in 0.13.5
viewtopic.php?f=11&t=28128

It's clearly a floating point bug.

60 * 0.5 / 0.5 = 60 good!
60 * 0.5 / 0.75 = 40 good!
60 * 0.5 / 1.25 = 24.000001 = 25 boo!

But maybe this thread is supposed to go in "won't fix".
Yeah, this doesn't look to me like a "Bug that's actually a feature".
That's why I'd love an explanation, or a ...

could you please explain?

I've reported this a while back, but in the wrong forum: https://forums.factorio.com/viewtopic.php?f=18&t=20334
The bug is that for AM3 one copper cable assembler is not enough for eight advanced circuit assemblers. For AM1 or AM2 this ratio is perfect (all assemblers are working constantly).
You ...

I'm curious, where do numbers 25 and 385 come from?

Writing a script that watches assembling machine output.

I'll give it here, but it will probably crash your game if you don't have chests where it expects.
/c
script.on_event(defines.events.on_tick, function()
local chests = game.player ...

DaveMcW wrote:The 1:8 ratio is wrong.

Copper wire recipe takes 25 ticks to produce, not 24 = 60 * 0.5 / 1.25

Advanced circuit recipe takes 385 ticks to produce, not 284 = 60 * 8 / 1.25

The correct ratio is 10:77.

I'm curious, where do numbers 25 and 385 come from?

It seems that something is not right with assembler machine 3 production speed. With them I can't get perfect ratio for red circuit production - 1 copper wire assembler per 8 red circuit assemblers.
Check out this gameplay video on youtube: https://www.youtube.com/watch?v=bnFqaZrs5Zk (first 40 ...