Question / Help Looking to improve stream quality

[MartinDoesTwitch]

Hi guys,

Just wonder if any of you veterans have suggestions on how I can tweak my settings to improve stream quality. My stream often freezes and stutters. Also my desktop is quite old as you can see from my stream log I posted below.

19:04:49.292: CPU Name: Intel(R) Core(TM) i5-3570K CPU @ 3.40GHz
19:04:49.292: CPU Speed: 3392MHz
19:04:49.292: Physical Cores: 4, Logical Cores: 4
19:04:49.292: Physical Memory: 16344MB Total, 8807MB Free
19:04:49.292: Windows Version: 10.0 Build 14393 (revision: 447; 64-bit)
19:04:49.292: Running as administrator: false
19:04:49.292: Aero is Enabled (Aero is always on for windows 8 and above)
19:04:49.292: Portable mode: false
19:04:49.302: OBS 0.16.6 (64bit, windows)
19:04:49.302: ---------------------------------
19:04:49.303: ---------------------------------
19:04:49.303: audio settings reset:
19:04:49.303: samples per sec: 44100
19:04:49.303: speakers: 2
19:04:49.368: ---------------------------------
19:04:49.368: Initializing D3D11..
19:04:49.368: Available Video Adapters:
19:04:49.369: Adapter 1: NVIDIA GeForce GTX 750 Ti
19:04:49.369: Dedicated VRAM: 2114650112
19:04:49.369: Shared VRAM: 4274120704
19:04:49.369: output 1: pos={0, 0}, size={1920, 1080}, attached=true
19:04:49.369: output 2: pos={-1920, 0}, size={1920, 1080}, attached=true
19:04:49.587: Loading up D3D11 on adapter NVIDIA GeForce GTX 750 Ti (0)
19:04:50.480: D3D11 loaded sucessfully, feature level used: 45056
19:04:50.970: ---------------------------------
19:04:50.970: video settings reset:
19:04:50.970: base resolution: 1920x1080
19:04:50.970: output resolution: 1280x720
19:04:50.970: downscale filter: Bilinear
19:04:50.970: fps: 30/1
19:04:50.970: format: NV12
19:04:50.971: ---------------------------------
19:04:50.999: [CoreAudio encoder]: Adding CoreAudio AAC encoder
19:04:51.000: [AMF Encoder] Version 1.4.2.3
19:04:51.001: [AMF Encoder] Unable to load 'amfrt64.dll', error code 126.
19:04:51.001: [AMF Encoder] Uncaught Exception: Unable to load 'amfrt64.dll', error code 126.
19:04:51.008: Required module function 'obs_module_load' in module '../../obs-plugins/64bit/libcef.dll' not found, loading of module failed
19:04:51.009: Required module function 'obs_module_load' in module '../../obs-plugins/64bit/libEGL.dll' not found, loading of module failed
19:04:51.009: Required module function 'obs_module_load' in module '../../obs-plugins/64bit/libGLESv2.dll' not found, loading of module failed
19:04:51.010: Failed to load 'en-US' text for module: 'obs-browser.dll'
19:04:51.010: [browser_source: 'Version: 1.26.0']
19:04:51.011: NVENC supported
19:04:51.097: Couldn't find VLC installation, VLC video source disabled
19:04:51.102: No blackmagic support
19:04:52.981: ---------------------------------
19:04:52.981: Loaded Modules:
19:04:52.981: win-wasapi.dll
19:04:52.981: win-mf.dll
19:04:52.981: win-dshow.dll
19:04:52.981: win-decklink.dll
19:04:52.981: win-capture.dll
19:04:52.981: vlc-video.dll
19:04:52.981: text-freetype2.dll
19:04:52.981: rtmp-services.dll
19:04:52.981: obs-x264.dll
19:04:52.981: obs-transitions.dll
19:04:52.981: obs-text.dll
19:04:52.981: obs-qsv11.dll
19:04:52.981: obs-outputs.dll
19:04:52.981: obs-filters.dll
19:04:52.981: obs-ffmpeg.dll
19:04:52.981: obs-browser.dll
19:04:52.981: image-source.dll
19:04:52.981: frontend-tools.dll
19:04:52.981: enc-amf.dll
19:04:52.981: coreaudio-encoder.dll
19:04:52.981: ==== Startup complete ===============================================
19:04:55.529: All scene data cleared
19:04:55.530: ------------------------------------------------
19:04:56.025: WASAPI: Device 'VoiceMeeter Input (VB-Audio VoiceMeeter VAIO)' initialized
19:04:56.032: WASAPI: Device 'Microphone (SteelSeries H Wireless)' initialized
19:04:56.684: adding 650 milliseconds of audio buffering, total audio buffering is now 650 milliseconds
19:05:05.753: Switched to scene 'Scene'
19:05:05.809: ------------------------------------------------
19:05:05.809: Loaded scenes:
19:05:05.809: - scene 'Scene':
19:05:05.809: - source: 'ArcheAge' (window_capture)
19:05:05.809: - source: 'Chat Filter' (image_source)
19:05:05.809: - source: 'Alert Box' (browser_source)
19:05:05.809: - source: 'Donation Goal' (browser_source)
19:05:05.809: ------------------------------------------------
19:05:06.916: Update check: last known remote version is 0.16.6
19:05:24.591: ---------------------------------
19:05:24.610: [x264 encoder: 'streaming_h264'] preset: veryfast
19:05:24.727: [x264 encoder: 'streaming_h264'] settings:
19:05:24.727: rate_control: CBR
19:05:24.727: bitrate: 3500
19:05:24.727: buffer size: 3500
19:05:24.727: crf: 0
19:05:24.727: fps_num: 30
19:05:24.727: fps_den: 1
19:05:24.727: width: 1280
19:05:24.727: height: 720
19:05:24.727: keyint: 60
19:05:24.727: vfr: off
19:05:24.727:
19:05:24.727: [x264 encoder: 'streaming_h264'] custom settings: scenecut=0
19:05:24.795: [CoreAudio AAC: 'Track1']: settings:
19:05:24.795: mode: AAC
19:05:24.795: bitrate: 160
19:05:24.795: sample rate: 44100
19:05:24.795: cbr: on
19:05:24.795: output buffer: 1536
19:05:24.810: [rtmp stream: 'adv_stream'] Connecting to RTMP URL rtmp://live-sin.twitch.tv/app...
19:05:24.885: [rtmp stream: 'adv_stream'] Interface: Qualcomm Atheros AR8151 PCI-E Gigabit Ethernet Controller (NDIS 6.30) (ethernet, 1000 mbps)
19:05:26.839: [rtmp stream: 'adv_stream'] Connection to rtmp://live-sin.twitch.tv/app successful
19:05:26.864: ==== Streaming Start ===============================================
19:25:49.867: Last log entry repeated for 1453 more lines
19:25:49.867: [rtmp stream: 'adv_stream'] User stopped the stream
19:25:49.867: Output 'adv_stream': stopping
19:25:49.867: Output 'adv_stream': Total encoded frames: 36752
19:25:49.867: Output 'adv_stream': Total drawn frames: 36752
19:25:49.867: Output 'adv_stream': Number of skipped frames due to encoding lag: 180 (0.5%)
19:25:49.867: Output 'adv_stream': Number of lagged frames due to rendering lag/stalls: 35 (0.1%)
19:25:49.867: Output 'adv_stream': Number of dropped frames due to insufficient bandwidth/connection stalls: 30814 (83.8%)
19:25:49.867: [rtmp stream: 'adv_stream'] Freeing 26 remaining packets
19:25:49.869: ==== Streaming Stop ================================================

 

[EBrito]

As you scale in VIDEO settings, don´t rescale again in output settings.

I own same graphics card. You can use NVENC if you want.

My case: canvas 1600x900 scaled in VIDEO settings to 1280x720 LANCZOS filter. NVEC encoding in output settings without rescaling.

 

[koala]

19:25:49.867: Output 'adv_stream': Number of skipped frames due to encoding lag: 180 (0.5%)
19:25:49.867: Output 'adv_stream': Number of lagged frames due to rendering lag/stalls: 35 (0.1%)
19:25:49.867: Output 'adv_stream': Number of dropped frames due to insufficient bandwidth/connection stalls: 30814 (83.8%)

Your machine is able to encode fast enough.
But you are losing 83.8% of your stream, because of insufficient bandwidth. Either your upload bandwidth is too low to support an upload speed of 3500, or you have something else running that is eating up your bandwidth, or someone else who is also using your internet connection is eating up your bandwidth. What is the bandwidth of your internet connection?