Downscale Filter Obs

Downscale Filter ObsClick Apply to save your settings on the video screen. Not so good in OBS and settings yet, and i tried to google, is 1440p and you're scaling to 720p, use "Downscale Filter: Bicubic". Tại đây, độ phân giải nên đặt giống của màn hình máy tính, thường là 1920x1080. Downscale filter: For gaming, leaving this on Bicubic 16 samples is fine. Resolution” and “Downscale Filters” until you find one that satisfies you. The Downscale Filter decides how you choose to downscale your resolution (if . The recommended filter is the Lanczos. While downscaling is active you have 3 different Filters to choose from for a better looking downscale: Bilinear (fastest); Bicubic sharper (good . The framerate should be set to 60 FPS unless you are on a super budget PC or a bad network, then you should probably be streaming at 720P 30 FPS. Downscale filter settings affect how sharp the pixels and overall image of the stream will be. The top option is Bilinear and it is the best option for streaming on a less powerful computer. quality to "quality" mode, tried changing downscale filter to Lanczos but that makes the stream stutter so I have to keep it on Bicubic. A 1280x720 Output Resolution with a Bilinear (or Area) Downscale Filter at 30 FPS works great in Zoom. If you're looking for 60 FPS select 60, if your PC and or connection. Now, go to the Advanced menu on the left to go through the last bits and pieces. I am wondering what the difference is on these filters. So if you want to record a video by choosing Downscale resolution to 1920*1080, then it should be OBS settings for recording 1080P 60FPS. Here are my personal OBS setting recommendations for DJs and why. With OBS, you can stream on Twitch, YouTube and other platforms, and capture your computer screen with internal and external audio (Try MiniTool Video Converter to change video format). The option called Downscale Filter will decide how you choose to downscale your resolution if you choose to do this. Output (Scaled) Resolution: 720p (or 1080p); Downscale Filter: Lanzos (Sharpened scaling, 36 samples); Common FPS Values: 30 FPS (or 60 FPS). In my experience, setting the stream to 1536×864 gives a close to 1920×1080 experience (while still divisible by 8) but with clear visuals even with fast movement and many effects in a game. Furthermore, for 1080p output resolution streaming, you should go with 1920×1080 base resolution. Lanczos or Bicubic will both work just fine - feel free to experiment with this Common FPS Values is the frames per second you will stream at. You OBS should be ready to stream. Downscale Filter: Bicubic (Sharpening scaling, 16 samples) Integer FPS Value: 30. Skill 16GB (2x8GB) DDR4 3200MHz CL14 MOBO - ASUS PRIME X570-P GPU - ASUS Dual NVIDIA GeForce GTX 1070 8GB 1TB Samsung 970 EVO (Games etc). Streaming and Recording Gameplay is not . We recommended either 30fps or 60fps. These would be the best suitable settings for your low-end PC. Depending on your CPU will depend on your CPU. In general, to increase Zoom video quality, lower the OBS Output . In this case, you’ll need to choose a method for it to downscale. Without getting into the details, the video bitrate affects how blurry things will get when lots of detailed things move around on the screen. OBS Studio là phần mềm quay video màn hình, có thể hoạt động trên máy cấu hình thấp và đặc biệt hoàn Hộp Downscale Filter để mặc định. Common FPS Values: 30 FPS (or 60 FPS) . This is the log from my main pc:. Some notable callouts: Pre-Pass Mode is disabled. If you wish to stream at the same resolution as your Base (Canvas) Resolution, simply uncheck this box. They describe a single observation, defining the observed object or field, exposure time, dithering pattern (if applicable), and telescope and instrument configuration (filter, position angle, etc. Hey guys, I've been having a hard time to find the best settings to stream with my RX 6700 XT. This is the specific filter you wish to apply to downscale your resolution. The Best OBS Recording Settings for Output File. Downscale Filter: Lanczos (Sharpened scaling, 32 samples) FPS Type: Common FPS Values Common FPS Values: 60. For example, if they are both 640x480, will the downscale filter apply when I record a video?. OBS Studio is one of the most powerful recording software right now. Downscale Filter: mặc định Common FPS Value: chọn khung hình mỗi giây cho đoạn clip, nên chọn 30 fps dành cho những game thông thường và 60 fps dành cho những game hành động để có độ mượt xem sẽ đã hơn. The Frame Rate with a Common FPS Value of 30 should be fine in most cases. Which is the best OBS downscale filter in terms of performance and video quality? In this video, I compare 9 different methods to downscale . The downscale option doesn’t put too much strain on your hardware, however, the Bicubic option can also be used on an older system. Leave the process priority at above normal and renderer on Direct3D 11. Downscale 1080p to 720p? Avisynth Usage Spline36 is a 3-tap filter, using 36 (6x6) input pixels for each output pixel, while Spline64 is 4-tap (8x8). So, if your screen capture is 1920x1080, you can keep it as an OBS HD recording (in 1080p). Defaults are OK (Sample Rate 48Khz; Channels Stereo) OBS Video Settings for Screen Share. This only applies if your output resolution is lower than your base resolution. The settings I just described for NTSC are shown below: Change the Output Settings. While downscaling is active you have 3 different Filters to choose from for a better looking downscale: Bilinear (fastest) Bicubic sharper (good detail, 16 samples) Lanczos (best detail, 36 samples) FPS. The different downscale filters (bilinear, bicubic, and Lanczos) simply change the algorithm used to shrink the picture: bilinear is fastest and takes the . The next step is to set the Downscale Filter to Lanczos (Sharpened scaling, 36 samples). Common FPS Value: Choose the maximum one – 60, you’ll have the smoothest video clip. In general, to increase Zoom video quality, lower the OBS Output Resolution, so Zoom will not have to downscale the video content a second time. The Downscale Filter is what's responsible for taking the Base . Ngoài ra, đặt Downscale Filter sang . Read on below about how to fix dropped frames in Streamlabs OBS in 6 steps: Check Your Internet Speed and Compare to Your Bitrate. How to apply a Chroma Key filter in OBS? To apply the chroma key filter, follow these steps: 1 Open OBS Studio 2 Create a new Scene 3 Add your Camera Source 4 Check if your green screen fully covers your background. If it is not, you can easily crop the video in OBS. As mentioned above, you might have a Base and Output resolution of 1080p, but what if you want to stream at 720p? This is . If the above is true, set this to bicubic. Downscale filter: For gaming, leaving this on Bi-cubic 16 samples is fine. Downscale Filter: Lanczos (if you're downscaling the output) . The Downscale Filter plays a crucial role in the final look of your video. Output (Scaled) Resolution: 1920×1080; Downscale Filter: Lanczos (Sharpened scaling, 36 samples); Common FPS Values: 60. The last to do when setting up OBS is in the 'Advanced’ menu. Downscale Filter: Biliniar (Fastest, but blurry if scaling). Downscale Filter Some streamers prefer to stream in 720p, even if the Base and Output Resolution is set to 1080p. Downscale your output resolution. Use case: typically gaming Specs: not relevant, this is the OBS setup for the most capable machines Trying to figure out wether to use Bicubic vs Lanczos, heard that Lanczos is just unnecessary stress on the system but it has a higher sample count (not going to pretend I know what that means). 2 also will work with integrations normally, as it has the updated API version, and will be released in time for Feb 28th (barring extreme. Downscale Filter When you are using a smaller output resolution your recording will need to be downscaled to size. On OBS, how can I adjust the resolution? Under Settings>Video, set your Base Resolutionto whatever your source is in or what you want it to be, then setyour Output Resolution to the same thing as your Base. Downscale Filter: Choose Lanczos (Sharpened scaling, 36 samples), so you’ll have fewer troubles if you want to downscale the video later. ) right click the source and select Bilinear under "Scale . Select Help > Log Files > Upload Current Log File. The forth line is the Common Fps Values 30 or 60 either one is fine. Sort of! Encoding in OBS relies on older encoding rules which have the best results when the resolution is divisible by 8. Phần mềm này giúp hỗ trợ nhiều hệ máy Downscale Filter bạn sẽ setting là Bilinear. The overall best and most detailed filter is Lanczos. Here, set the Encoder to either NVENC (for NVIDIA GPUs) or H264/AVC (for AMD GPUs). Follow the rest of the settings as shown. Downscale Filter: Lanzos (Sharpened scaling, 36 samples). Since it’s the fastest it doesn’t spend as much resources doing the downscale. This is your target output frames per second. Downscale Filter: Lancsos Common FPS Value: 60 (change it to 30 if you are doing 720p @ 30fps) On the Advanced tab. Luckily though, there are a fair few ways to troubleshoot your dropping frames which should resolve 99% of your problems. Downscale Filter: This is only needed if your output resolution is less than your base resolution (for example, if you wanted to record at a lower 720p resolution). OBS Studioในการบันทึกวิดีโอประกอบการเรียนการสอน Downscale Filter Bicubic common fps. Phần mềm obs studio giúp bạn live stream với tốc độ cao, hình ảnh rõ nét​ Downscale Filter bạn sẽ setting là Bilinear. How do I lower my bitrate? In Bitrate, select 160 by default for most videos. Downscale filter = Lanczos FPS Value = 60. Now that you’ve copied these settings into OBS, you can start streaming. Video Bitrate: Video Bitrate between 2000-4000 Kbps. Use Your Graphics Card for Encoding. 1khz - Avoid running services and other applications while you play. These are my OBS settings and everything you need to know about streaming and recording. ตรงOutput (Scaled) Resolution เลือก 1920 X 1080 ตรง Downscale Filter เลือก Bicubic (Sharpened. Downscale Filter: Lanczos (Sharpened scaling, 36 samples) Common FPS Values: 60; Your Base (Canvas) Resolution is the resolution of your monitor screen. Click on the Apply button at the bottom of the Window. What should my downscale filter be? Normally bicubic is recommended. This occurred to me and a few others, and after some tinkering, some awesome community members came up with a version much closer to what the actual filter is supposed to look like. When you have set the game video settings to the lowest, this will . Set Downscale Filter to Lanczos (Sharpened scaling, 36 samples). Well, as im actually typing this im recording with obs studio on my lan rig, which is running a 1440p panel. In the settings menu, select Output from the left pane. It's blurry, pixelated and with artifacts. With numerous functions that are tweakable by the user, the software gives a unique experience where the user has control over almost all the aspects of the recording/streaming. Lanczos - OBS Downscale Filter Comparison - YouTube; Sigara içmek pul mantık . Or, you can downscale it to 1280x720. Likewise, if you want it to be a 1080p stream, set it to 1920×1080. 60 typically isn’t needed except for certain things like gaming. The Downscale Filter settings depend on if you are resealing video, the default value should be fine in most cases. I've read previously Lanz is good for Real video not so much gaming?. - Reduce OBS recording resolution to 16:9 ratio 720p (1280x720) or 480p (854x480) and use Bicubic downscale filter. Next, you’ll set up the output. It is worth trying options based on your own set up and material. I can notice the lags on my second pc in the obs preview window. Make sure to watch at 1440p to really see the difference between the 3 filters!Bilinear: 0:10Bicubic: 0. Output (Scaled) Resolution: 720p (or 1080p). Make sure you replicate any issues as best you can, which means having any games/apps open and captured, etc. For recorded video production it's best to choose Lanzos, as this . 10 Ways to Fix the OBS CPU Usage too High. This is mainly due to the bitrate cap that Twitch implements (6000kbps when a good 1080P stream would need 10000 kbps). Makes the picture sharper depending on which filter you choose. Most modern computers may only see a small performance hit by using Lanczos filtering. OBS has a drop menu that features all of the common framerates used for recording video. 10 OBS Studio Tips and Tricks 1. It is recommended to choose Lanczos as your downscale filter, as this provides the best quality at the cost of slightly more CPU. Set the Bitrate to 6000 Kbps if you stream on Twitch or 10000 Kbps if you stream. Since it's the fastest it doesn't spend as much resources doing the downscale. Bilinear is the worst, as it makes it the most blurry, and Lanczos is the best, . The Output (Scaled) Resolution is the. The Downscale Filter has 3 options, Bilinear says "fastest", but what does "fastest" actually mean? All of obs’ settings are at default and I haven’t even. that's upscaling/downscaling filter, make sure you record . What are the best OBS settings for a low-end PC? Recording resolution for low-end PCs should be 720p for (1280×720) and 480p for (854×480). Giờ chuyển sang phần video ở bảng bên trái. - Lower OBS FPS to 24 or 30 - Set OBS Audio sampling rate to the lowest to save some bits - 44. We recommend recording in 60 FPS in most cases, especially for gameplay that involves a lot of action. When streaming at higher bitrates I've found that this settings doesn't do much especially when VBAQ is enabled. To determine the CPU usage, you have to check or downscale the output resolution. Also, you can only scale down and cannot upscale a 720p canvas to a 1080p stream. Downscale Filter ข้อนี้จะเป็นตัวเลือกสำหรับคนที่เลือก Output น้อยกว่า Base ครับ จะช่วยในการทำให้ภาพคมขึ้นหลังจากการ Downscale ให้เลือก . FPS: Frames per second, typical value is 30 or 60. Start your stream/recording for at least 30 seconds (or however long it takes for the issue to happen). The ‘Video’ tab is where you will find FPS settings, resolution, and downscale filter. However, you can use Bicubic 16 samples if your PC is struggling. OBS will take your Base (Canvas) Resolution, filter it using your selected Downscale Filter, and then rescale it based on your select Rescale Output setting. Downscale Filter: Lanczos (Sharpened scaling, 36 samples) Open Broadcaster Software (OBS) is an open source software for video recording and streaming. Streaming and Recording Gameplay is not possible on every PC, so. Click Advanced, set Color Space to 709 and Color Range to Full. Fix OBS Blurry recording problem in an easy way or Fix your blurry and How To Output Resulution : 1920*1080; Downscale Filter : Bicubic . This gives the smoothest look when downscaling to bring down resolutions. The FPS value ought to be set by your resolution and bitrate. The downscale option doesn't put too much strain on your hardware, however, the Bicubic option can also be used on an older system. Simply click Start Streaming in OBS and you will be live. Then go toSettings>Output>Streaming Tab. Select your prefered Downscale Filter and FPS. Under the Video tab in your OBS settings: Base (Canvas Resolution): 1920x1080 (Choose your monitor's resolution) Output (Scaled) Resolution: 1280x720; Downscale Filter: Bicubic (Sharpened scaling, 16 sample) Common FPS Values: 30; How to Start Streaming. (also should note im using the amd proprietary. The Downscale Filter set to Bicubic is a middle ground where you get enough image clarity without sacrificing too much in-game FPS. Default: bicubic (especially for full-frame downscales) Face-cam: right-click, Scale Filtering, Lanczos. We recommend using Lanczos 36 samples for the best quality. For the “Downscale Filter” setting you can keep it at Bicubic (Sharpened scaling, 16 samples). The OBS software is specially developed to record your screen in real-time. We have found that these “Downscale filter” and “Common FPS values” settings do not need to be . A common problem many streamers face is performance issues. The third line should say Downscale filter: select Bicubic (sharpened scaling, 16 samples). Its just your game and OBS Studio only. Is it better to record with OBS or Streamlabs? Undoubtedly, both are good software for live streaming but comparatively, the OBS is better. Configure computer and OBS settings Use the Bicubic downscale filter. obs artifacts when previewing filters, corrupted Xcomposite 1920x1920 output resolution: 1920x1920 downscale filter: Bilinear fps: 60/1 . OBS Audio Settings for Screen Share. Hello, I typically downscale my videos, and I'm wondering what downscale filter is the best. It’s a standard rescale and provides good quality. The Downscale Filter has 3 options, Bilinear says "fastest", but what does "fastest" actually mean? Is it smoother with this filter compared to the others or does it only use less resources? OBS 27. Might want to drop by the Official OBS Discord server as this seems more a support issue . Code format should be set to NV12, YUV color space to 709, and YUV color range to FULL for the best. Find the “Downscale Filter” and click on the downward arrow next to it, on the right-hand side. Here is the original OBS forum thread. Going with 60 fps is great for smoother motion (i. What is the best one for copying VHS . The FPS value is the frames per second that your video recording will have. Feature Request: Downscaling filter with anti-aliasing · [Request] OBS output/program as a source (using source mirror?) · SSP Source Breaks shaderfilters. OBS Studio là phần mềm ghi và stream video trực tiếp. Downscale Filter: This is a personal choice but I opt for "Bicubic". Then select the Output Icon on the side: Then at the top for Output Mode, select Advanced. Beberapa streamer lebih suka streaming dalam 720p, meskipun Base dan Output Resolution diatur ke 1080p. The “Downscale Filter” affects how pixelated the stream is. Set Common FPS Values to 60 (or 30 if your computer is lagging). If it comes in at 720 set to 720. I have got my settings running 720p downscaled, with 32 sample sharpening filter and a bitrate of [email protected], I get decent quality without big impact. Might want to drop by the Official OBS Discord server as this seems more a support issue than any sort of bug. Hey, just saw they've added a new Downscale Filter which is called "Area (Weighted sum, 4/6/9 samples)" Can somebody explain what that does, and if it's better than the others now, and also, when to use it? iirc I should not use any Downscale Filter if my Base Res is 1920x1080 and my Output Res is 1920x1080 aswell. If you’re converting video where music is the primary element, choose a higher bitrate (256 or 320). The next step is to set the Downscale Filter to Lanczos (Sharpened . OBS (Open Broadcaster Software) is free and open source software for video recording and live Change Downscale Filter to Lanczos. By using the Lanczos downscale filter I'm getting high number of lagged frames. Note that this will not affect bandwidth, but it can affect quality. Choose “25 PAL” for PAL sources. First, Go to Settings > Video and choose 24 - 30 - 60 fps and Bilinear in Downscale Filter. Set the Downscale filter to Bicubic. If you do choose to downscale you'll need to be careful of which downscale filter you use. I was wondering if the downscale filter will apply when I am recording something if the base (canvas) resolution and the output (scaled) resolution are the same. Color Format: NV12 YUV Color Space: 601 YUV Color Range: Partial. Downscale Filter: Phần này bạn để mặc định. ” Click on the “Video” tab in the panel on the left-hand side. Downscale Filter is how much power your machine will use to downscale the image. The last and most important one is FPS, you can always record a better quality with a higher FPS, but usually 60FPS is enough for the social media websites. You do that… 5 Right-click on your Video Capture Source. Set the downscale filter to 32 samples. These are most likely completely foreign to most users, and that's fine. The downscale filter should be Bicubic, and frames per second should be between 25 to 30. OBS Studio supports the latest NVENC encoder from NVIDIA built into the RTX graphics cards. My main pc is running with an i7-7700k and 1080ti, both pcs are connected with 1 Gbit/s. While this should smooth out bitrates, it has a 10% performance penalty which is detrimental to the quality. Check the quality of your stream by watching your channel while it’s live. Lanczos or Bicubic will both work just fine – feel free to experiment with this; Common FPS Values is the frames per second you will stream at. Video Downscale Filter Bicubic Feb 7, 2022. Audio Monitoring Device: Default Disable Windows audio ducking. -Downscale filter: Lanczos -Common FPS Values: 30 [you can try 60fps which will likely run fine, but 3500 bitrate isn't a ton to make an image look clear and sharp with more FPS or more resolution and a higher fps value will hit your CPU harder too. This is where the downscale filter comes in. Remember once you have changed your settings, hit apply to keep them. I have got my settings running 720p downscaled, with 32 sample sharpening filter and a bitrate of [email protected], I get decent quality without big . Downscale Filter - Lanczos (36 samples) - This only works if your Base resolution and your Output Resolution are different. For the “Common FPS Values” select “29. However, it requires more GPU or CPU power. I'm currently streaming at 1080p60fps and I was using the Lanczos filter for about an hour until I checked on my stream to make sure it looks good and I noticed it was slightly blurry looking and not crystal clear like it used to be. Depending on what resolution it is at you will have to select that option, by default it will be 1920×1080. Nếu bạn chọn chế độ cuối cùng thì sẽ xử lý lâu hơn và cho hình ảnh đẹp nhất. I've used Lanczos for some test videos, . You’ll see several options in the drop-down list. Change Your Downscale Filter (If Necessary) Change Your Encoder. Best Advanced Settings: The advanced menu of OBS Studio contains settings for process priority, rendering, color format, color space, audio monitoring devices, and more. Common FPS Values - 60 so your recording looks smooth; Then go to Output, here is where the most important recording settings are located: On top look for "Output Mode" and select Advanced from the dropdown menu. a Bilinear (or Area) Downscale Filter at 30 FPS works great in Zoom. Which is the best OBS downscale filter in terms of performance and video quality? In this video, I compare 9 different methods to downscale a live stream in. There is a minimal difference between downscale options when it comes to the load they put on your PC. As for Downscale Filter, you should choose the best OBS recording settings as Lanzos, which provides the best video quality. OBS memiliki filter khusus untuk downscaling yang memungkinkan Anda filtel skala. OBS by default uses the CPU for encoding, but high CPU usage may affect stream quality on some devices, leading to dropped frames and less quality. 40Lanczos: 1:10Side-by-side: 1:40Bonus: 2:10ᴄᴏᴍᴘᴜᴛᴇʀ. Downscale Filter: Lanczos (32 samples) Common FPS values: 30. 60fps will be half the image quality, theoretically, of 30fps since the same 3500 bitrate has to. Leave the process priority at above normal and the renderer on Direct3D 11. The issue lies in the math of the filter. stream any game in 720p, 60fps on low-end computers, Just you need to. The Common FPS setting lets you adjust your framerate. It is in the lower-right corner of the window. Downscale Filter -Lanczos (Sharpened scaling, 36 samples) Integer FPS Value - 120 #I had 60 before but I like the 120 fps feel after editing the footage My PC Specs are: CPU - AMD Ryzen 7 3700X @ 3. The Downscale Filter ought to be set to Lanczos (Sharpened Scaling, 32 Samples). I have 1Gbps internet connection speed, tried in Streamlabs to change bitrate to high value, tried changing preset quality to "quality" mode, tried changing downscale filter to Lanczos but that makes the stream stutter so I have to keep it on Bicubic. These are my OBS settings and Explained the main things to stream without any lag and issues. What does the downscale filter do in OBS video tab. Output (Scaled) Resolution: 1920 x 1080 (for full HD),; Downscale Filter: Lanczos (Sharpened Scaling, 32 samples),; Common FPS Values: 60fps. Suggested frame rate is max 30fps but refer to your cameras frame rate. Best OBS Streaming Settings for DJs. Observing blocks (OBs) are the smallest units (quanta) of observations in the queue mode. YouTube can handle 60 FPS, but leaving OBS recording settings at 30 FPS is okay too. Launch OBS on your computer and click on Settings. You can downscale it if you feel like the quality of the recording process is unsatisfying (for instance, lagging). saldırı kıyafetlerimi yıkarım gönderildiğinden Obs Best Downscale Filter - Captions Trend Update · Dış mekan liberal Zatürre Bilinear vs. Copy the URL and paste it as a response. that the stream/recording will output at, using the selected downscale filter. OBS has a special filter for downscaling that allows you to do that. Best OBS Settings Guide 2022: Streaming, Recording, Audio, Video & More Lanczos is the best Downscale Filter you can use, the other ones . If you use OBS to change the size of something (your webcam, images, overlays etc. The options to chose are Bilinear, Bicubic, Lanczos. OBS (Open Broadcaster Service) is the leading software for recording and streaming game plays in the gaming industry right now. Use case: typically gaming Specs: not relevant, this is the OBS setup for the most capable machines Trying to figure out wether to use Bicubic vs Lanczos, heard that Lanczos is just unnecessary stress on the system but it has a higher sample count (not going to pretend I know what that means) which one yields better quality, that is the only concern. Downscale filter: Bilinear, Bicubic (16 samples), Lanczos (32 samples). Base (Canvas) Resolution: 1920x1200 (this is set by the resize output done from the source menu) Output (Scaled) Resolution: 1920x1200. Berikut cara menggunakannya: Klik “Settings” di sudut kanan bawah jendela OBS. The Lanczos downscale filter in OBS and OBS Studio is currently bugged. Where Does OBS Save Recordings? OBS Studio is a free and open-source program used for live streaming and screen recording. I recently started using OBS Streamlabs as I had had some troubles with it in the past and now. The best downscale filter to use is Lanczos. Change Downscale Filter to Bilinear. Is it better to record with OBS or Streamlabs?. qpay, ohf, vww, 02sa, 17l, h6i, b7o, pamh, eyt, 2gph, 5a1b, 7vbw, 9j6, mlc, rb8, o9vk, 66hj, qaoz, z99, txgo, ut8, l42b, ua0m, ispl, cy2x, 7vp, gw1, ewtj, 1x8j, 5g0p, lf2z, pm3, gtj, q27c, 6eo, c9r8, 0aj, sbcx, 8l6u, cxav, 9lw6, 5jne, mqz, fph, j0u, bx3v, bzh, azp, 59s, 7y5, t17, khet, 5ze, kig, 9l2