15 minutes
Engine Sound
The lab
This course goes deeper into lesson 2.9 of Endless Rampage Combat, Sound and Shipping. It grants no credits, because you already own RoadAudio and everything else the lab uses.
The lab is the finished game, free to series owners. Download it:
It lands in public/scenes/EndlessRampage/scene.json. Copy that file over your src/scenes/endlessrampage.json and reload. Every lesson in this course works on your own copy of RoadAudio, in src/components/RoadAudio/.
Lesson 2.9 mapped the engine's pitch through three gears. It said the engine plays that pitch on two saw waves, one tuned 0.7% sharp so the pair throbs, plus a sine an octave down, all through a low-pass filter. This lesson opens each of those choices. Then you replace the three gears with a five-speed gearbox.
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