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Questions and Answers
Which loudness measurement technique uses a 3 second sliding window?
Which loudness measurement technique uses a 3 second sliding window?
What is the primary function of a Personal Area Network (PAN)?
What is the primary function of a Personal Area Network (PAN)?
Which frame type in a Long GOP structure is used most often?
Which frame type in a Long GOP structure is used most often?
What does the term 'gated' refer to in audio loudness measurement?
What does the term 'gated' refer to in audio loudness measurement?
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Which of the following codecs is NOT mentioned as a compression algorithm?
Which of the following codecs is NOT mentioned as a compression algorithm?
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What is the significance of the -23 LUFS target level?
What is the significance of the -23 LUFS target level?
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What is the main disadvantage of using B Frames in video compression?
What is the main disadvantage of using B Frames in video compression?
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In a Local Area Network (LAN), what is primarily shared among connected devices?
In a Local Area Network (LAN), what is primarily shared among connected devices?
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What does dBTP stand for in audio measurement?
What does dBTP stand for in audio measurement?
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Which unit is used to measure perceived loudness in an audio program?
Which unit is used to measure perceived loudness in an audio program?
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What is the primary function of a Storage Area Network (SAN)?
What is the primary function of a Storage Area Network (SAN)?
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Which of the following describes the concept of Loudness Range (LRA)?
Which of the following describes the concept of Loudness Range (LRA)?
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What is represented by LU in audio measurement?
What is represented by LU in audio measurement?
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Which type of network spans across multiple geographical areas?
Which type of network spans across multiple geographical areas?
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What does the term 'True Peak Meter' refer to in audio processing?
What does the term 'True Peak Meter' refer to in audio processing?
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How is the target loudness defined for audio in the USA?
How is the target loudness defined for audio in the USA?
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Which RAID configuration can handle the failure of up to two disks simultaneously?
Which RAID configuration can handle the failure of up to two disks simultaneously?
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What is the maximum file size supported by the FAT32 file system?
What is the maximum file size supported by the FAT32 file system?
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Which RAID level combines mirroring and striping for fault tolerance and speed?
Which RAID level combines mirroring and striping for fault tolerance and speed?
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What is the implication of spreading parity across disks in a RAID array?
What is the implication of spreading parity across disks in a RAID array?
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Which statement best describes RAID 0's characteristics?
Which statement best describes RAID 0's characteristics?
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Which file system is mentioned as being the most compatible across different operating systems?
Which file system is mentioned as being the most compatible across different operating systems?
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In the context of RAID, what does the term 'striping' refer to?
In the context of RAID, what does the term 'striping' refer to?
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What outcome occurs if two disks fail in the same RAID 1 mirrored pair?
What outcome occurs if two disks fail in the same RAID 1 mirrored pair?
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Study Notes
Legal Information Duration
- 5 words per second (0.2 seconds per word or 300 words per minute).
- 9 words or fewer = 0.2 seconds per word + 2 seconds added.
- 10 words or more = 0.2 seconds per word + 3 seconds added.
- Superimposed text on two or more lines = 0.25 seconds per word + 3 seconds.
- Abbreviations and Postcodes count as one and two words respectively.
Text Height Minimums
- SD 4:3: Minimum text height = 14 lines; single background = 12 lines.
- SD 16:9: Minimum text height = 16 lines; single background = 14 lines.
- HD 16:9: Minimum text height = 30 lines; single background = 26 lines.
Aspect Ratios
- Resolution Type: SD, HD, Full HD, QHD, 2K video, 4K video, 8K video
- Names: 4:3, 16:9, 1.78:1, 1:1:77, 1.85:1, 1:1:9, 2.35:1, 16:9.
- Pixel Size: Varies based on the resolution type.
Commercial Text Safe Areas
- SD 4:3: 67.5% width, 90% height
- HD 16:9: 90% width, 90% height
- Action safe area: 80%
- Title safe area: 90%
Colour Encoding Systems
- Analogue TV: SD, Interlaced, Composite video, PAL, Automatic Colour Correction
- NTSC: 720x480 (486) resolution, 29.97fps (30) fps, 60 fields, 525 lines visible resolution, Manual Tint Control
- SECAM: Sequential Colour and Memory, based on PAL, incompatible with PAL
- PAL: Phase Alternate Line, 720x576 resolution, 25fps (50 fields), 50Hz, 625 lines visible resolution
Metadata and File Format
- Metadata: Information that describes other data.
- Codec: Method for compressing/decompressing data (making it smaller).
- Wrapper: File format handling various data types together in a single file.
- Bitrates : Unit of measure of file size (Measured in Megabits, Megabytes, Kilobytes, Mega & Giga).
File Systems and Compatibility
- FAT32: Compatible with Windows, macOS, and Linux.
- exFAT: Compatible with Windows and modern devices, less compatible with older devices and Linux
- NTFS: Default file system for Windows; compatible with Windows only. macOS and Linux can read files but not write.
Codecs and Wrappers (Video/Audio)
- Lossy Codecs: H.264, MPEG 2, MPEG 4, AVC-I, AVCHD, ProRes, DNxHD, DNxHR, JPEG2000
- Lossless Codecs: DVCPRO HD, JPEG2000, VP9, AV1. (some code can be both, lossy and lossless)
- Audio Codecs : AAC, MP3, M4A, FLAC ,AIFF
- Wrapping formats: .MXF, .OMF, .MP4, .MOV, .JPEG, .FLV/SWF, .AAF, .MPG, .M2T, .WMV, .DPX, and others listed in the provided text
- Codecs for Delivery : AVC-I, H265, H264, JPEG 2000, DNxHD/DNxHR, ProRes, MPEG, MP4, etc
Still Image Formats
- Lossy: JPEG (Joint Photographic Experts Group)
- Lossless: TIFF, PNG, RAW, BMP, ZIP, GIF, PSD, EPS
RAID (Redundant Array of Inexpensive Disks)
- RAID 0: Fast, but data is lost if one disk fails.
- RAID 1: Data is copied, storage capacity is reduced.
- RAID 3: (Not fully replicated) Data striped and parity data spread across disks.
- RAID 5: Data striping with parity, one disk failure is tolerable.
- RAID 6: Data striping with two parity blocks, handles multiple disk failures.
- RAID 10: Mirror pairs are striped
- Disks : Varies by type.
Network Types
- PAN: Personal Area Network (small network, transfers files)
- LAN: Local Area Network (devices in same building)
- WLAN: Wireless Local Network (wireless LAN)
- CAN: Campus Area Network (joins multiple LANs)
- MAN: Metropolitan Area Network (spans large geographic areas)
- SAN: Storage Area Network (high-speed network for data storage)
- WAN: Wide Area Network (largest network type, spans vast areas)
Timecode and Archive Footage
- Black/White Levels: 10-bit broadcast=64, 20-bit broadcast=1024, White Level=255
- Timecode: How much of a HD programme can be in SD (25%) and how much archive footage on a HD programme (10%).
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Description
This quiz covers essential guidelines for legal information duration, focusing on text height minimums for various resolution types and aspect ratios. Test your knowledge on commercial text safe areas and the specifics of word count timings. Perfect for anyone looking to understand legal text display standards.
