Twitch Enhanced Broadcasting Explained
Enhanced Broadcasting is Twitch's newer ingest workflow. Your device can upload several video qualities instead of one, so viewers get quality options even when Twitch would not otherwise transcode your stream. It also brought automatic encoder configuration to OBS.
Here is what it does, what it costs you in CPU and upload, and where it stops. Vertical and dual format streaming sit next to it, not inside it.
What Enhanced Broadcasting actually does
With ordinary RTMP, your encoder sends Twitch one video stream. Twitch then tries to transcode it into lower-quality options for viewers, though guaranteed transcoding has never applied to every channel.
Enhanced Broadcasting changes that. Your encoder sends several resolutions directly, so the quality options viewers see do not depend only on Twitch transcoding your single input. It also gives OBS an automatic configuration path that can choose settings based on your computer and upload bandwidth.
For regular multiple encodes, the trade is straightforward: more of the encoding work can move to your machine. For Dual Format and 2K, Twitch can also provide added server-side transcode support to reduce that strain. That fits the wider move toward multi-format live video, covered in what is dual format streaming.
What it enables
Encoder-side quality options
Viewers get multiple resolutions that come from your encoder, rather than relying on Twitch to transcode a single input into lower tiers.
A path toward dual format
Twitch has been moving toward vertical and dual-format viewing. Enhanced Broadcasting is not the whole vertical workflow, but it belongs to the same multi-output direction.
A newer ingest path
It uses a more modern ingest than plain RTMP, which is what makes multi-track delivery to Twitch possible in the first place.
HEVC, AV1, and 2K on Twitch
Part of the same shift is a move to newer video codecs. For years Twitch ingested H.264 (AVC) up to 1080p. It now also accepts HEVC for 2K (1440p) from Partners and Affiliates. AV1 and 4K are a different story: they are still limited and are not generally available.
HEVC (H.265) at 1440p
Twitch uses HEVC for 2K streaming at up to 9 Mbps. In 2K Enhanced Broadcasting streams, the 1080p H.264 bitrate can go up to 7.5 Mbps. Regular single-track 1080p RTMP remains around Twitch's 6 Mbps recommendation.
AV1 and 4K are still limited
Twitch has tested AV1 and 4K, but they are not generally available. Plan your setup around what Twitch accepts today unless your channel has explicit beta access.
Codec headroom on your machine
Encoding HEVC or multiple qualities locally needs hardware that can keep up. On a mobile or mid-range setup, that headroom is often the limiting factor.
Streamrun accepts both HEVC and AV1 input from every user, then transcodes to Twitch using the settings Twitch's Automatic Stream Configuration defines. You send high quality at a moderate bitrate from your encoder, and the outgoing codec follows whatever Twitch currently accepts, with nothing to reconfigure if that changes.
What to watch out for
Sending several tracks from one machine is more demanding than sending one, and the feature is Twitch-only.
Higher local load
Encoding multiple qualities at once raises CPU or GPU usage. Mid-range machines can struggle to do it without quality loss on the main stream.
More upload bandwidth
Multiple qualities mean more total upstream data. On a limited or mobile connection, that headroom may not be there.
Twitch only
Enhanced Broadcasting applies to Twitch ingest. It does nothing for Kick, YouTube, TikTok, or Instagram, so reaching those still requires multistreaming.
Vertical still needs its own plan
Vertical and dual-format streaming require a portrait composition that works on mobile. Whether you build it locally or generate it in the cloud, the framing has to be thought through.
How Streamrun fits into this
Enhanced Broadcasting covers Twitch quality options. Streamrun covers the workflow around it. You send one upload, and the cloud can generate the vertical version and deliver to your other platforms, so the multi-format work does not fall on your encoder or your uplink.
- Vertical crop generated in the cloud from your main feed, no second scene to run
- Horizontal to Twitch and Kick, vertical to TikTok and Instagram, from one upload
- Disconnect protection so a dropped connection does not end the broadcast
Frequently asked questions
What is Twitch Enhanced Broadcasting?
Enhanced Broadcasting is a Twitch ingest feature that lets your encoder send multiple quality options to Twitch instead of only one high-quality stream. Those extra resolutions give viewers quality options without relying only on Twitch server-side transcoding. It also introduced automatic encoder configuration in OBS so the stream settings can be matched to your computer and upload bandwidth.
How is Enhanced Broadcasting different from normal streaming?
Normal RTMP streaming sends one video stream, and Twitch generates lower-quality versions from it when transcoding is available. Enhanced Broadcasting moves more of that work to the encoder: your machine can produce several quality options before sending them to Twitch. That can make quality options more consistently available, but it also raises local encoding and upload requirements.
What do I need to use Enhanced Broadcasting?
You need a supported encoder, Enhanced Broadcasting enabled for your Twitch account, and enough upload bandwidth and encoding headroom to send multiple qualities at once. Recent OBS builds include Twitch Enhanced Broadcasting support, but availability and recommended settings can vary by account, hardware, and Twitch rollout status.
Does Twitch Enhanced Broadcasting use HEVC?
Twitch uses HEVC (H.265) for 2K (1440p) streaming, available to Partners and Affiliates, at up to 9 Mbps. In 2K Enhanced Broadcasting streams, the 1080p AVC (H.264) quality option can go up to 7.5 Mbps; regular single-track 1080p RTMP streaming remains around Twitch's 6 Mbps recommendation. AV1 and 4K are still limited and are not generally available. Streamrun accepts both HEVC and AV1 input from every user and transcodes to Twitch with the codec and settings Twitch supports.
How do I stream vertical on Twitch?
You need a deliberate vertical composition: a separate vertical scene in OBS, a second device shooting upright, or a cloud-generated vertical crop from your main feed. The same vertical output can also go to TikTok, Instagram, or YouTube Shorts alongside the Twitch stream.
Does Enhanced Broadcasting help with multistreaming to other platforms?
Not directly. Enhanced Broadcasting is specific to Twitch ingest. If you also want to reach Kick, YouTube, TikTok, or Instagram, you still need multistreaming. A cloud streaming engine can take one upload, deliver to Twitch, and distribute horizontal and vertical to the other platforms at the same time.
Related
What Is Dual Format Streaming?
The wider picture of horizontal and vertical streaming across platforms.
Automatic Vertical Framing
How the vertical crop is generated automatically instead of building a second scene.
How to Stream Vertical on Twitch
Dual Format on Twitch, and the three ways to produce the vertical 9:16 picture.
OBS Setup Guide
Connecting OBS, where Enhanced Broadcasting support lives, to your stream.
Vertical on Twitch, and everywhere else
Send one upload to Streamrun and let the cloud produce the vertical version and deliver to every platform, without loading down your encoder.