Signal Guidelines

To ensure uninterrupted livestream delivery and optimal quality, the incoming signal must be delivered to the platform with sufficient quality and via a reliable connection. Please consider the following recommendations carefully.

Compatible Encoders

In general, the 3Q streaming platform is compatible with all encoders that support the streaming protocols used by the platform. This includes most professional hardware and software encoders commonly used in live production workflows.

While many encoders are technically supported, we strongly recommend testing your chosen encoder thoroughly before using it in a production environment. Encoder behavior can vary depending on configuration, firmware, and network conditions, and proper testing helps ensure stable ingest and reliable stream quality.

Hardware

Manufacturer	Supported Protocols
Haivision	RTMP, SRT
Teradek	RTMP, SRT
AJA HELO	RTMP

Software

Product	Supported Protocols
Wirecast	RTMP
OBS	RTMP
XSplit Broadcaster	RTMP, SRT
FFmpeg	RTMP, SRT
vMix	RTMP, SRT

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Recommended Resolutions, Bitrates, and Frame rates

Resolution	Frame Rate	Minimum Bitrate	Recommended Bitrate	Maximum Bitrate
1080p	25–29.97 fps	3 Mbit/s	6 Mbit/s	10 Mbit/s
1080p	50–60 fps	6 Mbit/s	8 Mbit/s	12 Mbit/s
720p	25–29.97 fps	2.5 Mbit/s	4 Mbit/s	6 Mbit/s
720p	50–60 fps	4 Mbit/s	5 Mbit/s	8 Mbit/s

Note on Frame Rates

• 25–29.97 fps is recommended for most standard broadcasts and presentations.

• 50–60 fps is recommended for sports, motion-heavy content, or detailed screen captures.

• Higher frame rates require significantly more upload bandwidth and a stable connection.

Video Settings

Using CBR encoding and correctly configured keyframe intervals is essential for a stable and reliable livestream.

Setting	Recommendation
Codec	H.264, H.265, VP9
Resolution	1920x1080
Frame rate	Supported frame rates are 25, 30 (29.97), 50, and 60 (59.94) frames per second, using progressive scan. For higher resolutions (2K and above), frame rates are currently limited to 25–30 fps.
Bitrate	see, Recommended Resolutions, Bitrates.
Bitrate Mode	CBR
Keyframes	Every 2 seconds, or 1 second for low latency
Level	≥ 4.1
Profile	Main or higher (High for 1080p)
Scene Cut	Disabled
Keyframe Alignment	Enabled (align on PTS)

Audio Settings

Setting	Recommendation
Codec	AAC, VORBIS (for VP9), OPUS (for VP9)
Sample Rate	44,1 or 48 kHz
Bitrate	192 kbit/s or higher

Network Requirements

• The internet connection used for the livestream must be stable, uninterrupted, and dedicated exclusively to the livestream. This should be clarified and prepared well in advance.

• A technical contact person on site is required. This person must be authorized and capable of configuring and testing the network according to the specified requirements.

• To deliver an HD livestream in 1080p at 25 fps (approx. 6 Mbit/s), a minimum upload bandwidth of 10 Mbit/s is required.

• Always use wired network connections (Ethernet). Wi-Fi connections are strongly discouraged.

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Firewall

The following ports must be accessible from the streaming location.

RTMP

• Ports: TCP 1935, 80 (443 using RTMPS)

SRT

• Ports: An individual port is defined per livestream

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Internet Connection

The maximum upload bandwidth of your internet connection directly impacts the stability, resolution, and bitrate of the incoming signal.

You can test your upload bandwidth using the following services:

• https://www.speedtest.net

• https://fast.com/

• https://www.wieistmeineip.de/speedtest/

Bandwidth Recommendation

• Use no more than two-thirds (≈ 66%) of the upload bandwidth specified by your Internet Service Provider (ISP).

• Ensure that no other users or applications are using the same connection during the livestream.

• If the connection is not dedicated, the full upload bandwidth may not be available consistently.