Exhaust Note vs Engine Sound

Exhaust Note is not an app that plays back engine recordings. It synthesizes the sound from scratch, every moment, from the firing order created by cylinder layout and crankpin phasing. Why a crossplane V8 rumbles, why a flatplane screams, why a V12 idle throbs — it all comes from the physics of firing intervals. This app computes that physics in real time. ■ Real-time synthesized exhaust - Zero recorded samples. Crank-angle integration → per-cylinder firing → exhaust-pipe propagation, computed every sample - Distinct primary pipe, mid-pipe and muffler model for every engine - Muffler continuously adjustable from straight pipe to quiet ■ Engine collection - Presets from inline-3 to V12, based on real-car specs - Crossplane vs flatplane V8 — same eight cylinders, completely different sound - Firing order and rumble index shown as specs ■ Pop and bang + flames - Afterburn pops on throttle lift and downshifts - Flames at the 3D exhaust tips, same instant and same bank as the sound ■ Tunnel mode - Reverb that wraps the sound in wall reflections, like driving into a tunnel ■ A living 3D machine - Crankshaft, pistons and connecting rods rotate in phase with the sound - Gearbox cutaway: constantly meshed gear pairs and real synchro-sleeve movement - Observe the mechanism at 1/10 slow motion, or switch to real time for phase match ■ The feel of driving - Torque-converter launch, rev matching, manual H-pattern shifter - Haptics on rev limiter, wheelspin, shifts and ABS - Analog pedals: press position controls pedal travel Built by a gearhead, for gearheads.

Give any car the sound it deserves. Engine Sound synthesizes a lifelike engine in real time and plays it softly under your music. It follows your speed and acceleration, so the engine swells as you pull away and settles when you cruise — without ever stopping your music or podcasts. FIVE ENGINES • Inline-4 — eager and rev-happy • V8 — deep, lumpy rumble • Rotary — smooth, high-pitched buzz • Inline-6 — silky and balanced • V10 — shrieking, race-bred wail Preview each one with a tap. FEELS CONNECTED • GPS combined with the motion sensors reacts faster than GPS alone • Virtual gearbox: hear the shifts as you accelerate • Big animated tachometer with gear, RPM and shift lights PLAYS NICE WITH YOUR AUDIO • Mixes under music, podcasts and navigation — never takes them over • Choose how loud it sits under your music and how much it swells on acceleration • Subtle and Lead modes TRY IT PARKED Test Drive mode lets you rev every engine with an on-screen throttle before you head out. All sound is generated on your iPhone. Your location never leaves the device. Please drive safely and follow local laws. Keep the volume at a level that lets you hear traffic and emergency vehicles.