Tapeless
Encyclopedia
In the professional broadcast
world, an end-to-end workflow (from ingest to playout
) is called tapeless when part, or all of it, is made without any tape; video and audio sources being ingested, recorded, edited and played out on digital systems.
and a hard disk recorder
. With the tape based system, you need to wait for some mechanical operations such as forward, rewind, eject, copy, etc. In the other case, tapeless one, you instantly and directly go to the selected part of the media.
These advantages are the same in professional workflows and can be added to reach easiest, fastest and more secure systems.
The tapeless advantages are the following:
world, video server
s and efficient codecs
company is specialized in live sport systems equipping nearly each OB Van
with tapeless systems, such as its XT[2]
server.
Broadcast
Broadcast or Broadcasting may refer to:* Broadcasting, the transmission of audio and video signals* Broadcast, an individual television program or radio program* Broadcast , an English electronic music band...
world, an end-to-end workflow (from ingest to playout
Playout
In broadcasting, playout is a term for the transmission of radio or TV channels from the broadcaster into broadcast networks that delivers the content to the audience...
) is called tapeless when part, or all of it, is made without any tape; video and audio sources being ingested, recorded, edited and played out on digital systems.
Analogy and advantages
To illustrate the differences, we can take the analogy with a classic video recorderVideo recorder
A video recorder may be any of several related devices:*Digital video recorder ; Personal video recorder *DVD recorder*Videocassette recorder *Video tape recorder...
and a hard disk recorder
Hard disk recorder
A hard disk recorder is a type of direct to disk recording system that uses a high-capacity hard disk to record digital audio or digital video. Hard disk recording systems represent an alternative to more traditional reel-to-reel tape or cassette multitrack systems, and provide editing...
. With the tape based system, you need to wait for some mechanical operations such as forward, rewind, eject, copy, etc. In the other case, tapeless one, you instantly and directly go to the selected part of the media.
These advantages are the same in professional workflows and can be added to reach easiest, fastest and more secure systems.
The tapeless advantages are the following:
- Direct and instant access to a precise time codeTime codeA timecode is a sequence of numeric codes generated at regular intervals by a timing system.- Video and film timecode :...
- No mechanical wear
- No waiting time : forward, rewind does not exist
- Easiest and fastest editingEditingEditing is the process of selecting and preparing written, visual, audible, and film media used to convey information through the processes of correction, condensation, organization, and other modifications performed with an intention of producing a correct, consistent, accurate, and complete...
: insert, delete, copy, (see Non-linear editing systemNon-linear editing systemIn video, a non-linear editing system is a video editing or audio editing digital audio workstation system which can perform random access non-destructive editing on the source material...
) - Edit requiring less machines (with a tape-based workflow, you need at least two machines, one player and one recorder)
- Easy adding of metadataMetadataThe term metadata is an ambiguous term which is used for two fundamentally different concepts . Although the expression "data about data" is often used, it does not apply to both in the same way. Structural metadata, the design and specification of data structures, cannot be about data, because at...
(thumbnails, timecode, remarks, rating, ...) - Researches on media are easy with those metadataMetadataThe term metadata is an ambiguous term which is used for two fundamentally different concepts . Although the expression "data about data" is often used, it does not apply to both in the same way. Structural metadata, the design and specification of data structures, cannot be about data, because at...
- Costless storages
- No tape wear
Explosion
Tapeless systems have become popular and efficient together with the ITInformation technology
Information technology is the acquisition, processing, storage and dissemination of vocal, pictorial, textual and numerical information by a microelectronics-based combination of computing and telecommunications...
world, video server
Video server
A video server is a computer based device dedicated to delivering video.Unlike personal computers, being multi-application devices, a video server is designed for one purpose; provisioning video, often for broadcasters. A professional grade video server records, stores, and playout of multiple...
s and efficient codecs
Commercial examples
The EVSEVS Broadcast Equipment
EVS Broadcast Equipment SA manufactures live outside broadcast digital video production systems.Its recorders have become the dominant standard for broadcasters worldwide...
company is specialized in live sport systems equipping nearly each OB Van
Outside broadcasting
Outside broadcasting is the electronic field production of television or radio programmes from a mobile remote broadcast television studio. Professional video camera and microphone signals come into the production truck for processing, recording and possibly transmission...
with tapeless systems, such as its XT
Xt(2)
The XT[2] is a video server built and designed by the Belgian company EVS Broadcast Equipment which allows broadcasters to record, control and play media.The XT[2]+ is a newer model of the server...
server.