OBS Bitrate set to 8000 kbps, stream showing 6000 kbps

qhobbes

qhobbes

Active Member
  1. The Hardware-accelerated GPU scheduling ("HAGS") feature in Windows is currently known to cause performance and capture issues with OBS, games and overlay tools. It's an experimental feature and we recommend disabling it via these instructions.
  2. Audio buffering hit the maximum value. This is an indicator of very high system load, will affect stream latency, and may even cause individual audio sources to stop working. Keep an eye on CPU usage especially, and close background programs if needed.
    Occasionally, this can be caused by incorrect device timestamps. Restart OBS to reset buffering.

    Source affected (potential cause): Desktop Audio
  3. As twitch is a Premier Sponsor of OBS, I'm going to recommend you follow their Broadcasting Guidelines. The reason this is happening is because you are using Enhanced Broadcasting which uses Automatic Stream Configuration. By sending information about your setup to Twitch, automatic stream configuration removes the need for offline trial and error to find the correct settings. A server-side algorithm then returns the best possible configuration for broadcast software that optimizes the viewer experience given constraints in your setup. If you read 2 more lines below the ignoring streaming service... you will see:

    20:09:50.353: Go live URL: https://ingest.twitch.tv/api/v3/GetClientConfiguration
    20:09:50.353: Preparing enhanced broadcasting stream for:
    20:09:50.353: custom config: No
    20:09:50.353: config url: https://ingest.twitch.tv/api/v3/GetClientConfiguration
    20:09:50.353: settings:
    20:09:50.353: service: Twitch
    20:09:50.353: max aggregate bitrate: Auto (0)
    20:09:50.353: max video tracks: Auto (0)
    20:09:50.353: custom rtmp url: Yes ('rtmp://ord03.contribute.live-video.net/app')
    20:09:50.353: vod track: No
    20:09:50.363: Go live POST data: {"authentication":"CENSORED","capabilities":{"cpu":{"logical_cores":32,"name":"13th Gen Intel(R) Core(TM) i9-13900K","physical_cores":24,"speed":2995},"gaming_features":{"game_bar_enabled":null,"game_dvr_allowed":null,"game_dvr_bg_recording":null,"game_dvr_enabled":true,"game_mode_enabled":null,"hags_enabled":false},"gpu":[{"dedicated_video_memory":25314721792,"device_id":9860,"driver_version":"32.0.15.6094","model":"NVIDIA GeForce RTX 4090","shared_system_memory":17059096576,"vendor_id":4318},{"dedicated_video_memory":134217728,"device_id":42880,"driver_version":"31.0.101.5537","model":"Intel(R) UHD Graphics 770","shared_system_memory":17059096576,"vendor_id":32902}],"memory":{"free":26885828608,"total":34118193152},"system":{"arm":false,"armEmulation":false,"bits":64,"build":22631,"name":"Windows","release":"23H2","revision":4112,"version":"10.0"}},"client":{"name":"obs-studio","supported_codecs":["h265","h264","av1"],"version":"30.2.3"},"preferences":{"canvas_height":1080,"canvas_width":1920,"composition_gpu_index":0,"framerate":{"denominator":1,"numerator":60},"height":1080,"maximum_aggregate_bitrate":null,"maximum_video_tracks":null,"vod_track_audio":false,"width":1920},"schema_version":"2024-06-04","service":"IVS"}
    20:09:50.573: Go live response data: {
    20:09:50.573: "audio_configurations": {
    20:09:50.573: "live": [
    20:09:50.573: {
    20:09:50.573: "channels": 2,
    20:09:50.573: "codec": "aac",
    20:09:50.573: "settings": {
    20:09:50.573: "bitrate": 160
    20:09:50.573: },
    20:09:50.573: "track_id": 0
    20:09:50.573: }
    20:09:50.573: ],
    20:09:50.573: "vod": []
    20:09:50.573: },
    20:09:50.573: "encoder_configurations": [
    20:09:50.573: {
    20:09:50.573: "bitrate_interpolation_points": [
    20:09:50.573: 0,
    20:09:50.573: 1000,
    20:09:50.573: 2500,
    20:09:50.573: 6000
    20:09:50.573: ],
    20:09:50.573: "framerate": {
    20:09:50.573: "denominator": 1,
    20:09:50.573: "numerator": 60
    20:09:50.573: },
    20:09:50.573: "gpu_scale_type": "OBS_SCALE_BICUBIC",
    20:09:50.573: "height": 1080,
    20:09:50.573: "settings": {
    20:09:50.573: "bf": 3,
    20:09:50.573: "bitrate": 6000,
    20:09:50.573: "keyint_sec": 2,
    20:09:50.573: "lookahead": true,
    20:09:50.573: "preset2": "p6",
    20:09:50.573: "profile": "high",
    20:09:50.573: "psycho_aq": true,
    20:09:50.573: "rate_control": "CBR",
    20:09:50.573: "tune": "hq"
    20:09:50.573: },
    20:09:50.573: "type": "jim_nvenc",
    20:09:50.573: "width": 1920
    20:09:50.573: },

    Here we can see it setting the bitrate for your stream to 6000 per their Broadcasting Guidelines. If you continue reading the log, you will see there 5 encodes with a total bitrate of 11200.

    In OBS, go to Settings > Service: Twitch, Use Stream Key > Here you can modify the settings or disable it.
 
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