MajorWiki/04-streaming/obs/obs-studio-setup-encoding.md

---
title: "OBS Studio Setup and Encoding Settings"
domain: streaming
category: obs
tags: [obs, streaming, encoding, twitch, youtube, linux]
status: published
created: 2026-03-08
updated: 2026-03-08
---

# OBS Studio Setup and Encoding Settings

OBS Studio is the standard for streaming and recording — open source, cross-platform, and capable of everything you'd need for a production setup. The defaults are fine to get started but getting encoding settings right matters for stream quality and CPU/GPU load.

## Installation

**Linux:**
```bash
# Fedora
sudo dnf install obs-studio

# Ubuntu/Debian (flatpak recommended for latest version)
flatpak install flathub com.obsproject.Studio

# Ubuntu PPA (if you want apt)
sudo add-apt-repository ppa:obsproject/obs-studio
sudo apt update && sudo apt install obs-studio
```

**Windows/macOS:** Download from obsproject.com.

## Encoding Settings

The most important settings are in Settings → Output → Streaming.

**If you have an NVIDIA GPU (recommended):**

| Setting | Value |
|---|---|
| Encoder | NVENC H.264 (or AV1 if streaming to YouTube) |
| Rate Control | CBR |
| Bitrate | 6000 Kbps (Twitch max), up to 20000+ for YouTube |
| Keyframe Interval | 2 |
| Preset | Quality |
| Profile | high |
| Look-ahead | Enable |
| Psycho Visual Tuning | Enable |
| GPU | 0 |
| Max B-frames | 2 |

**If using CPU (x264):**

| Setting | Value |
|---|---|
| Encoder | x264 |
| Rate Control | CBR |
| Bitrate | 6000 Kbps |
| Keyframe Interval | 2 |
| CPU Usage Preset | veryfast or superfast |
| Profile | high |
| Tune | zerolatency |

NVENC offloads encoding to the GPU, leaving CPU free for the game/application. Use it whenever available. x264 on `veryfast` is a reasonable CPU fallback if your GPU doesn't support hardware encoding.

## Output Resolution and FPS

Settings → Video:

| Setting | Value |
|---|---|
| Base (Canvas) Resolution | Match your monitor (e.g., 1920×1080) |
| Output (Scaled) Resolution | 1920×1080 (or 1280×720 for lower bitrate streams) |
| Downscale Filter | Lanczos (best quality) or Bilinear (fastest) |
| Common FPS | 60 (or 30 if bandwidth-limited) |

For most Twitch streams: 1080p60 or 720p60 at 6000 Kbps. 1080p60 at 6000 Kbps is pushing it for fast-motion content — if you're seeing compression artifacts, drop to 720p60.

## Scene Setup

A basic streaming setup uses two scenes at minimum:

**Live scene** — your main content:
- Game Capture or Window Capture (Windows/macOS) or Screen Capture (Linux/Wayland)
- Browser Source for alerts/overlays
- Audio input (mic)
- Desktop audio

**BRB/Starting Soon scene** — a static image or video loop for transitions.

Add sources with the + button in the Sources panel. Order matters — sources higher in the list appear on top.

## Audio Setup

Settings → Audio:
- Desktop Audio: set to your main audio output
- Mic/Auxiliary Audio: set to your microphone

In the mixer, use the gear icon per source to apply filters:
- **Noise Suppression** (RNNoise): reduces background noise significantly
- **Noise Gate**: cuts audio below a threshold — stops background hiss when you're not talking
- **Compressor**: evens out volume levels
- **Gain**: boosts a quiet mic

Apply them in that order. Noise suppression first, gate second, compressor third.

## Linux-Specific Notes

**Wayland capture:** OBS on Wayland requires either the PipeWire screen capture plugin or using X11 compatibility mode (`obs --use-x11` or setting the env var `QT_QPA_PLATFORM=xcb`). The Flatpak version handles this better than the native package on some distros.

**Virtual camera on Linux:**

```bash
# Load the v4l2loopback kernel module
sudo modprobe v4l2loopback devices=1 video_nr=10 card_label="OBS Virtual Camera" exclusive_caps=1

# Make it persist across reboots
echo "v4l2loopback" | sudo tee /etc/modules-load.d/v4l2loopback.conf
echo "options v4l2loopback devices=1 video_nr=10 card_label=OBS Virtual Camera exclusive_caps=1" | sudo tee /etc/modprobe.d/v4l2loopback.conf
```

## Plugins & Capture Sources

### Captions Plugin (Accessibility)

[OBS Captions Plugin](https://github.com/ratwithacompiler/OBS-captions-plugin) adds real-time closed captions to streams using speech-to-text. Viewers can toggle captions on/off in their player — important for accessibility and for viewers watching without sound.

Install from the plugin's GitHub releases page, then configure in Tools → Captions.

### VLC Video Source (Capture Card)

For capturing from an Elgato 4K60 Pro MK.2 (or similar DirectShow capture card) via VLC as an OBS source, use this device string:

```
:dshow-vdev=Game Capture 4K60 Pro MK.2
:dshow-adev=Game Capture 4K60 Pro MK.2 Audio (Game Capture 4K60 Pro MK.2)
:dshow-aspect-ratio=16:9
:dshow-chroma=YUY2
:dshow-fps=0
:no-dshow-config
:no-dshow-tuner
:live-caching=0
```

Set `live-caching=0` to minimize capture latency. This is useful when OBS's native Game Capture isn't an option (e.g., capturing a separate machine's output through the card).

## Gotchas & Notes

- **Test your stream before going live.** Record a short clip and watch it back. Artifacts in the recording will be worse in the stream.
- **Keyframe interval at 2 is required by Twitch.** Other values cause issues with their ingest servers.
- **High CPU Usage Preset for x264 makes streams look better but uses more CPU.** `veryfast` is usually the sweet spot — `fast` and `medium` are noticeably heavier for marginal quality gain.
- **NVENC quality has improved significantly.** Old advice says x264 is better quality. That was true in 2018. Current NVENC (RTX series) is competitive with x264 at reasonable bitrates.
- **OBS logs** are in Help → Log Files. When something isn't working, this is where to look first.

## See Also

- [linux-file-permissions](../../01-linux/files-permissions/linux-file-permissions.md)
- [bash-scripting-patterns](../../01-linux/shell-scripting/bash-scripting-patterns.md)