Install Blackmagic Design Desktop Video 11.6.
It's the output when monitoring, or when streaming that is unusable because of quality issues.Īlso, BMD MediaExpress 3.6.1 is able to capture video, and audio perfectly! Steps to Reproduce When looking at OBS Audio Mixer, audio from Blackmagic device is in sync.
Current BehaviorĪudio is stopping, and restarting there is large delay from start, and quality is terrible. OBS should provide the same audio quality as MediaExpress tool from BMD. Expected BehaviorĪudio output from BlackMagic Recorder 3G should be synced, and not buggy. Some people report the same issue when using MacOS, so it's probably not related to Linux. OBS Studio version: 25.0.8 and 26.0.0-rc3īlackmagicdesign UltraStudio Recorder 3G using HDMI, and TB3Īlso tried OBS 25.0.8 from Ubuntu ppa repository before upgrading to 26.0 rc3. It’s here for people experimenting with high-end video and edge cases, but for the majority of users, Lossless is best avoided.Operating system and version: Ubuntu 20.04.1 LTS Plus, when you upload your video to YouTube or wherever it’ll get crushed back down to size by their encoder.Īlso, Lossless isn’t very reliable and does crash OBS now and then. That might sound strange, but let’s face it, you’re most likely going to have to edit your video on your PC, and the huge files made by Lossless will make that a nightmare. This is your high-quality recording option when CQP is unavailable - but just like CQP, it’s for recording, not streaming. Approximately every 6 points will double your file size, and as you can imagine, subtracting 6 will halve it. Similar to how CQP gives you a range of 0 to 30, with the lower numbers being better quality, CRF ranges from 0 to 51, with around 17 to 24 being considered ‘good quality’. It’s hard to recommend VBR for live content, but when CQP feels like overkill, go with VBR. That said, VBR can be useful when recording gameplay at higher bitrates (such as 100,000 Kbps) when you’re not looking for the ultra-detailed results that you’ll get with CQP. In addition to that (and as mentioned before), because of how data is routed online (from servers to routers and so on) the unpredictable nature of VBR can introduce issues that the predictable nature of CBR avoids. Sounds good, right? Well, that ramp up can take a second or more, and in that time your stream will look blocky as it tries to ‘catch up’. Let’s say your video bitrate is set to 3000 Kbps, you might see it dip to 1500 Kbps when there’s not much action on screen, then go back up to 3000 Kbps when action resumes. While CBR provides a constant video output of the same quality, VBR will adjust the bitrate up and down depending on what is needed. Just don’t stream with it! None of the platforms recommended it, and it wasn’t designed for streaming anyway.ĭifferent Rate Controls work for different scenarios, such as CBR for streamers and CQP for recording high-quality video that’s good for VODs. Recording with CQP will fill your hard drive pretty quick, and truthfully you may be better off with VBR (see below), but if you need ALL the detail of a video (like when doing graphics comparison videos) CQP might be for you. The lower the number, the higher the quality, but if you’re recording at anything less than CQ Level 14 you’re probably wasting your time as it’s essentially lossless video at that point. When switching to CQP the bitrate control is removed and replaced with CQ Level from 0 to 30. If you need to record video at ultra-high quality, CQP is the way to go. So, if you’re running a 24-hour channel, this might be a good option, otherwise, stick with either CBR or VBR.
It’s a little complicated, and not really used by streamers, but this is the bitrate most popular with OTT (over-the-top) video delivery. This option allows more complex parts of your stream to use more bits and less detailed parts use less. The middle ground between CBR and VBR (which we’ll discuss below) is ABR. These are the Rate Control options you can use when your encoder is set to x264 ABR (Adaptive Bitrate)
0 kommentar(er)
