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maz_pc_setups.md

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MAZ PC setups

PC specs

No overclocking and BeQuiet case + air cooling

Device Name / Description
OS Windows 10 Pro (x64)
CPU Intel i7-10700K @ 3.8GHz
GPU NVIDIA GeForce GTX 1070 (ASUS ROG OC version)
Mainboard Asus ROG STRIX Z490-E Gaming
PSU BeQuiet 750W ATX
RAM 48GB (2x8GB @ 3200C16 + 2x16GB @ 3000C15) DDR4 @ 2133MHz
Storage Samsung M.2 SSD 970 EVO for C:\ and WD Black HDD for everything else
Monitors 2x old EIZO FlexScan @ 60Hz vertical (1200px high - 16:10 and 4:3)
Keyboard Full-sized Mechanical QWERTZ keyboard from ASUS ROG (GK2000 Horus RGB)
Mouse Mini Wireless Mouse @ 3100P Invisible Optical (powered by 2x AA Batteries)
Speakers 2x JBL control one speaker and an amplifier (+ a Cinch to AUX converter)
Headphones AKG K-371 closed ear headphones (rarely use it, but it's great)

Twitch Streaming & Video Recording

currently using OBS Studio version 30.1.0 (64 bit).

Plugins

Output

Output Mode: Advanced

Output: Streaming

Setting Value
Encoder NVIDIA NVENC H.264 ; CoreAudio AAC
Scale output (Bicubic) 1664x936 (for better bitrate on Twitch)
Bitrate CBR @ 6000Kbps
Keyframe Interval 2 sec.
Preset P5 / Slow (Good Quality)
Tuning Low Latency
Multipass Mode Single Pass
Profile main
Look-ahead OFF
Psycho Visual Tuning ON
Max B-frames 2

Also, see the Twitch VOD Track Guide for how to set up a separate audio track for VOD.

Output: Recording

Setting Value
Type Standard
Format mkv (see why further below)
Encoder NVIDIA NVENC H.264 ; CoreAudio AAC
Scale output no scaling (1920x1080)
auto split files ON ; split by time ; 120 min.
Compression CQP @ 4
Keyframe Interval 0 (auto)
Preset P7 / Slowest (Best Quality)
Tuning High Quality
Multipass Mode Single Pass
Profile high
Look-ahead OFF
Psycho Visual Tuning ON
Max B-frames 2

Output: Audio

All tracks have bitrate set to 128; nothing else is configured.

Audio

Setting Value
Sample Rate 48 kHz
Channles Stereo
Decay Rate Fast
Peak Meter Type Sample Peak

I've also deactivated all global audio devices that I don't need.

Video

Setting Value
Resolutions 1920x1080 (16:9)
Common FPS Values 60

Advanced

Setting Value
Process Priority Above Normal (and always run OBS as Administrator)
Renderer Direct3D 11
Color Format NV12 (8-bit, 4:2:0, 2 planes)
Color Space sRGB ; Limited
SDR White Level 300 nits
HDR Nominal Peak Level 1000 nits
automatic remuxing to mp4 OFF (see below)
automatic reconnecting ON ; 2s ; 10x
network optimizations ON
browser source hardware acceleration ON

Manual remuxing to mp4

Record to MKV (easy to restore if something happens), then convert to MP4 via FFmpeg as follows

# (Audio codec already is AAC, so it can be copied to save some time)
# Using NVIDIA CUDA for faster encoding (with 4 CPU threads ; more is not necessarily faster)
# Compression strength (qp) 4 & Bitrate: average 8Mbits ; min 500Kbits ; max 16Mbits ; buffer 16Mbits for nearly no quality loss
ffmpeg.exe -v level+warning -stats -threads 4 -hwaccel cuda -hwaccel_output_format cuda -i INPUT.mkv -map 0 -c copy -c:v:0 h264_nvenc -preset p7 -tune hq -profile:v:0 high -level:v:0 auto -rc vbr -b:v:0 8M -minrate:v:0 500k -maxrate:v:0 16M -bufsize:v:0 16M -multipass disabled -fps_mode passthrough -b_ref_mode:v:0 disabled -rc-lookahead:v:0 32 -qp 4 OUTPUT.mp4
# Copies every stream except the first video stream, which is compressed and converted to mp4 via NVIDIA h264_nvenc (+CUDA hardware acceleration)

Then, it can be used in any video editing software (delete the MKV version only if you tested the MP4 version for errors first).

A simpler, more general command can be found here.

One could also add -metadata comment="VIDEO DESCRIPTION" -metadata title="VIDEO TITLE" (before the output) to insert some metadata into the MP4 file in one command.

also see my list of useful FFmpeg commands and the official FFmpeg wiki for some inspiration.