Video editing and relay system
Client: a major sports streaming company
A system built mainly for streaming sport: it relays camera footage from several angles on site, editing as it goes, and can drop edited material such as highlights straight into the feed.
Main features
- Video streaming over the WebRTC protocol
- Switching which camera is output
- Synchronising the cameras with each other
- Editing highlight moments
- Inserting a highlight clip into the live feed
- FHD at 60 fps
- Compositing graphics that change in real time, such as the score, into the stream
Strong points
01
Streams footage from several cameras at high quality and low latency
02
Output timing is adjusted so the streams do not drift apart
03
Choosing the best angle from the multi-camera feed builds a sense of being there
04
Highlights can be cut while the live feed is still going out, and inserted into that same broadcast
05
The edited real-time feed can be sent straight to YouTube Live and similar
06
A properly sized server build keeps infrastructure cost to a minimum
System configuration

Remote live streaming system
Client: a major video streaming service
A live streaming system that allows two-way communication between the venue and the audience.
Main features
- Streaming at low latency (within 0.3-1.0 seconds) over the WebRTC protocol
- Two-way communication so the audience and the venue can talk
- Sending reactions, stamps and text chat at low latency
- The viewer can switch to the feed they want (up to 3 angles)
- Polls and quizzes set by the organiser
Strong points
01
Streams a live event held at a distance to a large audience
02
Viewers appear 30 at a time on the monitors at the venue (the server composites 30 feeds into one)
03
Reactions from viewers reach the venue at once, at low latency
04
Reactions arrive not only as video but as animated stamps and sound effects, which makes watching interactive and more involving
05
Other viewers can be heard too, so it feels like a live crowd
06
A talk room lets you chat with friends while watching
07
Audio is stereo, at a quality that holds up for watching a live show
08
Several angles are sent from the venue and the viewer switches between them
09
The viewer audio arriving at the venue can have its level set individually
10
A properly sized server build keeps infrastructure cost to a minimum
System configuration

This system is provided as a service by NTT Business Solutions Corp. (NTTビジネスソリューションズ株式会社) and NTT SmartConnect Corp. (エヌ・ティ・ティ・スマートコネクト株式会社).
Remote appearance demo system
Client: a major television broadcaster
A remote appearance system that carries video from a distant location securely and at low latency.
There is also an audio channel for the crew to talk and give directions on.
Main features
- Streaming at low latency (within 0.3-1.0 seconds) over the WebRTC protocol
- Choosing which connected camera and microphone to use
- Setting the codec, resolution and frame rate of the outgoing video
- Setting the codec and so on for the talkback audio channel
Strong points
01
The client device is a Jetson, so at the performer’s end it works as soon as it is switched on. Anyone can use it.
02
Latency as low as 100 msec for video and 80 msec for audio
03
The transmitter and receiver can go anywhere
04
Sending and previewing video feels simple
05
A properly sized server build keeps infrastructure cost to a minimum
System configuration
Two-way sports streaming system
Client: a major sports streaming service
A system that streams a sports event held at a distance to a large audience.
Main features
- Streaming at low latency (within 0.3-1.0 seconds) over the WebRTC protocol
- Two-way communication so the audience and the venue can talk and send reactions
- Communication between viewers
- Animated stamps and sound effects from viewers are composited with the venue camera feed onto the screen at the venue
- Multi-angle streaming, delivered to the viewer as a multi-angle feed
- The viewer can switch to the angle they want (up to 3 angles)
Strong points
01
Streams a sports event held at a distance to a large audience
02
Compositing footage from several angles makes it immersive and more enjoyable to watch
03
Reactions, stamps and text chat sent at low latency make watching interactive and more involving
04
Animated stamps and sound effects from viewers can go up on the big screen at the venue, so the performers feel the reaction at once
05
A talk room lets you chat with friends while watching
06
The operator can change the banner on the viewer’s screen - a player introduction under the video, for instance
07
The venue cameras can be shown side by side, or the operator can bring one up close
This system is provided as a service by NTT Business Solutions Corp. (NTTビジネスソリューションズ株式会社) and NTT SmartConnect Corp. (エヌ・ティ・ティ・スマートコネクト株式会社).
TV program-linked streaming system
Client: a major television broadcaster
A system that streams a discussion held across several locations to a large audience.
Main features
- Streaming at low latency (within 0.3-1.0 seconds) over the WebRTC protocol
- Talk to the venue: the viewer’s camera and microphone are sent there
- Animated stamps and sound effects from viewers are composited with the venue camera feed onto the screen at the venue
- Alongside the main feed, several cameras on site can be combined into one multi-angle feed for the viewer
- The viewer can switch to the angle they want (up to 3 angles)
Strong points
01
Footage from several locations is combined into one feed for the viewer
02
The cameras at each location can be shown side by side, or the operator can bring one up close
03
Text chat from viewers reaches every location at once, at low latency
04
A banner for the product featured in the programme sits under the video, giving the viewer a path to buy it
This system is provided as a service by NTT Business Solutions Corp. (NTTビジネスソリューションズ株式会社) and NTT SmartConnect Corp. (エヌ・ティ・ティ・スマートコネクト株式会社).












