Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Broadcast Workflow > Introduction > Flashcards

Introduction Flashcards

1
Q

Define a broadcast workflow.

A

It is a workflow which ensures that critical business processes can be implemented, tracked and optimised over time.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Workflows are used to orchestrate the interactions of which workplace resources.

A

Storage

Transcoding

Network

People

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What are photosites?

A

Photosites (photo/photon sensing site) are “pixels” on the camera sensor.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What is the purpose of a debayering / demosaicing algorithm?

A

To reconstruct a full colour image from the incomplete colour samples which are output from an image sensor overlaid with a Colour Filter Array (CFA).

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What is a CFA?

A

A Colour Filter Array is a mosaic of tiny color filters placed over the photosites of an image sensor to capture color information.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What does the REC 709 standard define?

A

REC 709 defines the High Definition (HD) colour space and formatting.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What does the REC 2020 standard define?

A

REC 2020 defines the standard for Ultra High Definition (UHD) television with a standard dynamic range.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What does the REC 2100 standard define?

A

The REC 2100 standard defines High Dynamic Range (HDR) for both High Definition (HD) and Ultra High Definition (UHD).

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What is ProRes 422?

A

ProRes 422 is an Apple lossy video compression (Codec) which is able to support up to 8K.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What is DNxHD?

A

Avid DNxHD is a lossy video compression (Codec) which will support up to 4K and the REC 2020 colour space.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What is NLE?

A

Non-Linear Editing (NLE) is is a form of audio, video or image editing where the original content is not modified in the course of editing (Non-destructive) – instead the edits are specified and modified by specialized software.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What is XAVC?

A

XAVC is a professional recording format / codec.​

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What wrapper / container does XAVC typically use?

A

XAVC typically uses the .MXF (Material eXchange Format) container.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What audio does XAVC use?

A

XAVC uses Linear Pulse Code Modulated (LPCM) audio.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What resolution can XAVC support?

A

XAVC supports up to 4K resolution.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What bit depth does XAVC support?

A

XAVC supports 8 bit, 10 bit and 12 bit depth.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

What colour sampling can XAVC support?

A

XAVC can support 4:2:0, 4:2:2 or 4:4:4 colour sampling.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

What is XAVC S?

A

XAVC S is a prosumer recording format / codec.

​

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

What wrapper / container does XAVC S typically use?

A

XAVC S uses the .MP4 container.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

What audio does XAVC S use?

A

XAVC S uses Linear Pulse Code Modulated (LPCM) audio.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

What bit depth does XAVC S support?

A

XAVC S only supports 8 bit depth.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

What resolution can XAVC S support?

A

XAVC S supports up to 4K resolution.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

What colour sampling can XAVC S support?

A

XAVC S only supports 4:2:0 colour sampling.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

What is the purpose of a Wrapper / Container?

A
  • Wrappers contain video, audio and metadata (such as timecode or subtitles).
  • Different wrappers / containers are able to hold different codecs.
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

What is an Essence?

A

An essence-only format is defined as basic A/V or graphic data, compressed or not. For example, JPEG data is graphic essence and PCM (Pulse-Code Modulation) audio is raw audio essence.

26
Q

What is .mov?

A

Quicktimes proprietary wrapper / container.

27
Q

What is .mpg?

A

The MPEG wrapper / container.

28
Q

Which essences do Panasonic cameras produce?

A
  • DV
  • DVCPRO 50
  • DVCPRO HD
  • These essences can be encapsulated within a .MXF (Media eXchange Format) wrapper.
29
Q

What are the steps of a typical News Production Workflow?

A
30
Q

What are the main contribution sources?

A
  • Dedicated links.
  • Satellite connections.
  • IP-based connections (High/low resolution).
31
Q

What are the secondary contribution sources?

A
  • Archive.
  • Other News Agencies.
  • Stock Footage.
  • Internet sources (i.e. youtube).
32
Q

What storage mediums are used?

A
  • Tape.
  • Hard drives (disk).
  • Solid State Drives (SSDs).
  • Mobiles / Handheld Devices.
33
Q

What methods of distribution are available?

A
  • Terrestrial
  • Satellite
  • Cable
  • Web (Both Live streams and VoD (Video on Demand))
  • Mobile
34
Q

What is IMF?

A

Interoperable Master Format (IMF) is a SMPTE standard for providing a single interchangeable master file format and structure for the distribution of media between organisations.

  • Uses a .MXF (Media eXchange Format) wrapper
  • Has a versioning hierarchy format (AS-02)
35
Q

What are the key aspects for contribution?

A
  • Picture Quality.
  • Latency (less important in distribution).
  • Synchronisation.
  • Encryption.
36
Q

What are the tolerances for audiovisual syncrhonisation?

A
  • -5 milliseconds to +15 milliseconds are tolerable for lip sync in a production context.
  • -5 milliseconds to +30 milliseconds are tolerable in a contribution context.
37
Q

What media encryption is used in a broadcast workflow?

A
  • In contribution there is very little standards available for encryption.
  • In distribution there are a wide array of encryptions available in addition to entitlement schemes.
  • Entitlement schemes only allow conditional access to media for users which meet certain defined criteria.
38
Q

What are the different types of quality grading for media?

A
  1. Contribution quality
  2. Broadcast Quality
  3. Good Quality
  4. Acceptable Quality
  5. Mobile Phone Quality
39
Q

What is Contrubition Quality equivalent to?

A

Contribution Quality is equivalent to uncompressed / very mildly compressed source material.

40
Q

What frame rate must Contribution Quality be at?

A

Contribution Quality must be at full frame rate.

41
Q

What colour sampling is usually associated with Contribution Quality?

A

Contribution Quality usually uses 4:2:2 chroma sub-sampling.

42
Q

What is Broadcast Quality media equivalent to?

A

Broadcast Quality media is equivalent to satellite, terrestrial and cable broadcast.

43
Q

What frame rate does Broadcast Quality media use?

A

Broadcast Quality media uses full frame rate but of slightly lower quality than contribution quality.

44
Q

When would Good quality media be used?

A

Good Quality media is commercially acceptable but only used as a last resort or for fast news responses.

45
Q

What frame rate is required for Good Quality?

A

Good Quality media does not necessarily use full frame rate.

46
Q

In what context can Acceptable Quality media be used?

A

Acceptable Quality media is commercially acceptable for low data rate applications.

47
Q

What is a URI?

A

A Uniform Resource Identifier (URI) is used to identify an abstract or physical resource.

48
Q

What is used to identify an abstract or physical resource?

A

A Uniform Resource Identifier (URI).

49
Q

What is a URL?

A
  • A Uniform Resource Locator (URL) is a subset of Uniform Resource Identifiers (URIs)
  • This identifies a resources location through its “access mechanism” (such as a network location.
50
Q

Which subset of Uniform Resource Identifiers (URIs) identifies a resources location through its “access mechanism” (such as a network location)?

A

A Uniform Resource Locator (URL).

51
Q

What is a URN?

A

A Uniform Resource Name (URN) is a subset of Uniform Resourse Identifiers (URIs) which identifies an item by its name.

52
Q

Which subset of Uniform Resourse Identifiers (URIs) is used to identify an item by it’s name.

A

A Uniform Resource Name (URN).

53
Q

What are “pixels” on the camera sensor reffered to as?

A

Pixels on the camera sensor are known as photosites.

54
Q

What is used to reconstruct a full colour image from the incomplete colour samples which are output from an image sensor overlaid with a Colour Filter Array (CFA)?

A

A debayering / demosaicing algorithm.

55
Q

What is the mosaic of tiny color filters placed over the photosites of an image sensor called?

A

A Colour Filter Array.

56
Q

What standard defines the High Definition (HD) colour space and formatting?

A

The REC 709 standard.

57
Q

What is the standard for defining Ultra High Definition (UHD) television with a standard dynamic range?

A

The REC 2020 standard.

58
Q

Which standard defines High Dynamic Range (HDR) for both High Definition (HD) and Ultra High Definition (UHD)?

A

The REC 2100 standard.

59
Q

What is the name of Apple’s lossy video compression (Codec)?

A

Apple’s lossy video compression (codec) is ProRes 422.

60
Q

What is Avid’s lossy video compression (Codec)?

A

Avid DNxHD.

Broadcast Workflow (2 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions