您想知道流式传输到 Twitch 或 YouTube 的最佳比特率吗？通读本(Read)详细指南，您将获得所需的答案。
在开始之前，请了解Twitch 和 YouTube(Twitch and YouTube)会以不同方式处理您发送给他们的数据，因此我们将本指南分为两部分。我们将首先为Twitch提供建议，然后为YouTube提供指南。
如果您使用转播服务同时流式传输到两个平台，最好使用Twitch 部分(Twitch section)中提供的建议。或者，某些服务将允许您为不同平台选择单独的设置。
请记住(Remember)，我们将讨论的所有这些设置都将在您的流媒体软件中，而不是在Twitch 或 YouTube 上(Twitch or YouTube)。
如何为 Twitch 选择最佳比特率
Twitch 将所有上传速度限制为 6000kbps，这意味着你不能再高于这个速度。但是，在许多情况下，最好降低。
Twitch将始终为其合作伙伴保留带宽，因此除非您在非高峰时段进行流式传输，否则您的观众将无法访问质量选项。这意味着，当您在Twitch上直播时，您的观众可能会被迫以您上传到Twitch服务器的质量观看您的直播。
如果您以特定比特率流式传输，则您的观众需要具有与您的上传相匹配的下载速度。(download speed)对于大多数观众来说，6000kbps 的比特率太高了。除非您可以保证在流中获得质量选项，否则您应该选择较低的设置。
一个好的起点(starting point)是以 60FPS 的 720P 流式传输。如果您正在玩射击游戏或任何高节奏动作的游戏，强烈建议使用 60FPS。为此，Twitch 推荐以下设置。
- 比特率：4500kbps
- 关键帧间隔：2秒
- 预设：最高质量
- B 帧：2
如果你玩的游戏没有太多动作，你可以选择 30fps 和 720P 分辨率。为此，请保持与上述相同的设置，但将比特率限制为 3000kbps。
将来，您的频道可能会发展到与您合作的程度。届时，您将获得质量选项。这意味着观众可以选择流式传输的质量，因此最好尽可能获得最高质量。在这种情况下，您将在Twitch(Twitch – 1080p)上有两个选项——1080p或 900p。
再次建议使用上述设置，但对于 1080p 和 900p，建议使用 6,000kbps。
如果我的上传速度太慢怎么办？(What If My Upload Speed Is Too Slow?)
Twitch 建议每秒 30 帧的 720p 使用 3,000kbps（约 0.4MB/s）。如果您的上传速度低于此速度，您应该尝试寻找替代的互联网解决方案(internet solution)。您可以选择较低的分辨率，但质量不会令人满意。
如果您的上传速度高于 3,000kbps 但低于 6,000kbps，您可以使用以下信息作为指导。
基于您的 Twitch 上传速度的最佳比特率：(The Best Bitrate Based On Your Upload Speed For Twitch:)
- 4,000kbps 或更低 – 720p 30fps
- 5,000 kbps 或更低 – 720p 60fps
- 6,000 kbps – 900p 60fps
- 6,000kbps 与合作伙伴 – 1080p 60fps
如何为 YouTube 选择最佳比特率
(YouTube)无论您有多少观众，YouTube都会自动对您的视频流进行转码。这意味着观众将拥有从 360p 到您正在流式传输的最高质量的所有质量选项。
这意味着您应该以尽可能高的比特率进行流式传输。然后，您的观众可以选择他们想要的质量选项(quality option)，并且他们不会有任何缓冲问题。
但是，如果您想以特定分辨率进行流式传输，YouTube建议您使用以下范围。强烈建议在此列表中选择较高的范围，以便为您的观众提供最佳体验。
YouTube 推荐比特率 (kbps)(YouTube Recommended Bitrate (kbps))
- 4K 60fps – 20,000-51,000
- 4K – 13,000-34,000
- 1440p 60fps – 9,000-18,000
- 1440p – 6,000-13,000
- 1080p 60fps – 4,500-9,000
- 1080p – 3,000-6,000
- 720p 60fps 2,250-6,000
- 720p – 1,500-4,000
- 480p – 500-2,000
How To Choose a Bitrate For Twitch & YouTube Streaming
Do you want to know the best bitrаte for streaming to Twitch or YouTube? Read through this detailed guide and you’ll have the answers you nеed.
Before we get started, please understand that Twitch and YouTube will deal with the data you send them differently, so we will split this guide into two sections. We will have suggestions for Twitch first and then a guide for YouTube.
If you use a re-streaming service to stream to two platforms at once, it’s best that you use the suggestions provided in the Twitch section. Alternatively, some services will allow you to choose separate settings for different platforms.
Remember that all of these settings we will talk about will be within your streaming software, not on Twitch or YouTube.
How To Choose The Best Bitrate For Twitch
Twitch limits all uploads to 6000kbps, which means you cannot go any higher than that. However, in many cases it’s better to go lower.
Twitch will always reserve its bandwidth for its partners, so unless you stream during non-peak hours, your viewers won’t get access to quality options. This means that when you stream on Twitch, your viewers may be forced to view your stream in the quality that you upload to Twitch’s servers.
If you stream at a certain bitrate, your viewers need to have the download speed to be able to match your upload. For most viewers, a bitrate for 6000kbps will be too high. Unless you are guaranteed to get quality options on your stream, you should opt for lower settings instead.
A good starting point would be to stream at 720P at 60FPS. If you are playing a shooter game or any game with high paced action, 60FPS is highly recommended. For this, Twitch recommends the following settings.
- Bitrate: 4500kbps
- Keyframe interval: 2 seconds
- Preset: Max Quality
- B-frames: 2
If you are playing a game that doesn’t have much action, you could choose to go for 30fps and 720P resolution. For this, keep the same settings as above, but limit your bitrate to 3000kbps.
In the future, your channel may grow to the point where you get partnered. At that point, you will be given quality options. This means viewers will get to choose what quality to stream in, so it’s best to go for the highest quality possible. In this case, you will have two options on Twitch – 1080p or 900p.
Once again, the settings above are suggested, but for both 1080p and 900p, 6,000kbps is recommended.
What If My Upload Speed Is Too Slow?
Twitch recommends 3,000kbps (around 0.4MB/s) for 720p at 30 frames per second. If your upload speed is lower than this, you should try to find an alternative internet solution. You could opt for a lower resolution, but the quality would not be satisfactory.
If your upload speed is higher than 3,000kbps but lower than 6,000kbps, you can use the following information as a guide.
The Best Bitrate Based On Your Upload Speed For Twitch:
- 4,000kbps or less – 720p 30fps
- 5,000 kbps or less – 720p 60fps
- 6,000 kbps – 900p 60fps
- 6,000kbps with partner – 1080p 60fps
How To Choose The Best Bitrate For YouTube
YouTube automatically transcodes your stream, no matter how many viewers you have. That means viewers will have all quality options from 360p to the highest quality you are streaming.
That means you should stream at the highest bitrate possible. Your viewers can then choose which quality option they want and they won’t have any issues with buffering.
However, if you want to stream at a certain resolution, YouTube does recommend the following ranges. It’s highly recommended to choose the higher range in this list for the most optimal experience for your viewers.
YouTube Recommended Bitrate (kbps)
- 4K 60fps – 20,000-51,000
- 4K – 13,000-34,000
- 1440p 60fps – 9,000-18,000
- 1440p – 6,000-13,000
- 1080p 60fps – 4,500-9,000
- 1080p – 3,000-6,000
- 720p 60fps 2,250-6,000
- 720p – 1,500-4,000
- 480p – 500-2,000
