LogicSpark & NoirShutter
LogicSpark LogicSpark
NoirShutter NoirShutter
LogicSpark LogicSpark
Ever notice how some vintage black‑and‑white movies have that faint hiss in the background while the picture stays razor‑sharp? I’m guessing it’s a signal artifact, not a stylistic choice.
NoirShutter NoirShutter
Yeah, that hiss is the old analog circuitry breathing. It’s just a relic, not a style cue.
LogicSpark LogicSpark
Sure, it’s like the circuit’s sighing at the 3.58 V supply it’s stuck on, not a dramatic effect. Let me trace the noise source for you.Because the tube’s anodes are still trying to stay warm, the hiss is the signal trying to climb the hiss‑to‑signal ratio, not a feature. If you want it gone, we’ll just bring that warm tube out of the picture.
NoirShutter NoirShutter
A warm tube is like a lingering shadow on the frame; if you pull it out, the scene goes quiet.
LogicSpark LogicSpark
Exactly, turn that tube off and the hiss just… disappears. Think of it as pulling a stray light source out of a dark frame.
NoirShutter NoirShutter
That’s the trick – cut the light and the echo vanishes, just like a stray star fading behind the night.
LogicSpark LogicSpark
So next time you hear that hiss, just imagine a star pulling off its spotlight—no echo left to chase.