What’s the best free noise suppression stack for streaming?

By GPU lane: RTX → Broadcast + OBS gate + Discord toggle off. GTX → RTX Voice or OBS RNNoise + gate. No NVIDIA → OBS RNNoise + gate + Discord’s Krisp toggle, with Sonar if you want the mixer. Every piece $0.

In what order do I set it all up?

Router first (pick your lane), mic filter second, gate third, comms toggle last — then the 60-second frame benchmark before your next stream. Under an hour, including the testing.

Do these free tools work together, or do they fight?

They fight only when you stack suppressors: one engine per signal path is the site’s standing rule. Filter + gate + a comms toggle on a SEPARATE path coexist fine — that’s exactly what the loadouts below are.

The free noise suppression stack for streamers, assembled

Three complete loadouts — RTX, GTX, and no-NVIDIA — every slot filled with something permanent and free. This is the site’s whole doctrine on one page: free first, one suppressor per path, frames counted.

BUILD 2026.07.30paths & prices verified vs vendor docsby the Loadout Audio squad

Pick your lane, take your loadout

LOADOUT: RTX rig

MIC FILTERNVIDIA Broadcast — noise + room echo, tensor-core billed

GATEOBS Noise Gate — silence between sentences, guaranteed

COMMSDiscord toggle OFF — Broadcast already cleans the path — one engine per path

BENCH60-second frame test — before the next stream, not after the clip

LOADOUT: GTX rig

MIC FILTERRTX Voice (legacy) or OBS RNNoise — measure both — old cards pay RTX Voice’s toll differently

GATEOBS Noise Gate — same two sliders

COMMSDiscord Krisp toggle — if RNNoise took the OBS path, Discord guards its own

LOADOUT: no NVIDIA / any rig

MIC FILTEROBS RNNoise — CPU-billed, zero config, holds up

GATEOBS Noise Gate — floor + voice, 2 dB steps

COMMSDiscord Krisp toggle — squad-side cleanup, free

MIXER (opt.)Sonar — Game/Chat/Media lanes + ClearCast both ways

Install order that avoids the classic faceplants

One suppressor per path, chosen now. Decide which engine owns the stream path and which (if any) owns comms — before installing anything.
Mic filter first, then re-pin devices. Every virtual mic you add re-shuffles device lists; OBS and Discord both get pointed at the right entry by name, never Default.
Gate last, tuned against the filtered signal. Suppression lowers your noise floor; gating before it means re-tuning after it anyway.
Benchmark, then stream. The 60-second protocol from the router page — your rig, your number.

Where the $0 ends, said once

Everything above is complete and permanent — no trials, no meters, no upsell hiding in step 4. The genuinely-paid corner of this category solves cross-app and incoming-audio problems the free stack structurally can’t; that case lives on one clearly-marked page and nowhere else on this site.

Lobby questions

What’s the best free noise suppression stack for streaming?: By GPU lane: RTX → Broadcast + OBS gate + Discord toggle off. GTX → RTX Voice or OBS RNNoise + gate. No NVIDIA → OBS RNNoise + gate + Discord’s Krisp toggle, with Sonar if you want the mixer. Every piece $0.
In what order do I set it all up?: Router first (pick your lane), mic filter second, gate third, comms toggle last — then the 60-second frame benchmark before your next stream. Under an hour, including the testing.
Do these free tools work together, or do they fight?: They fight only when you stack suppressors: one engine per signal path is the site’s standing rule. Filter + gate + a comms toggle on a SEPARATE path coexist fine — that’s exactly what the loadouts below are.