What is this BS EN 62141 - Helical-scan digital video cassette recording format about?
BS EN 62141 discusses a helical-scan digital video cassette recording format using 12,65 mm magnetic tape and incorporating MPEG-4 compression with a focus on type D-16 format. BS EN 62141 specifies the track content, format, and recording method of the data blocks containing compressed video, AES3 audio data, and associated data which form the helical records on 12,65 mm tape in cassettes.
BS EN 62141 includes packetizing and shuffling operations supporting picture compression using the DCT and DPCM encoding methods defined by ISO/IEC 14496-2 (MPEG-4 simple studio profile).
Note: Early implementations of BS EN 62141 might not comply to the frame rate of 50 Hz as specified in SMPTE 296M.
Who is BS EN 62141 - Helical-scan digital video cassette recording format for?
BS EN 62141 on helical-scan digital video cassette recording format is useful for:
- Audio equipment manufactures
- Audio programmers
- Music producers
- Sound technicians
- Recording and dubbing studios
Why should you use BS EN 62141 - Helical-scan digital video cassette recording format system?
BS EN 62141 supports the recording of source picture formats using 1920 × 1080 pixels with the 4:4:4 and 4:2:2 sampling structure specified in SMPTE 274M at the frame rate of 23,98 Hz, 24 Hz, 25 Hz, and 29,97 Hz, and using 1280 ×720 pixels with the 4:2:2 sampling structure specified in SMPTE 296M at the frame rates of 50 Hz and 59,94 Hz. BS EN 62141 also supports the recording of 12 channels of AES3 audio data and 3 lines of uncompressed blanking interval data.
BS EN 62141 specifies the encoding of ancillary data and picture formats via compression into a bit rate in the range 353~442 Mbps in a packetized format for recording on a Type D-16 digital tape recorder. BS EN 62141 discusses the environment and test conditions, helical recordings, programme track data arrangement, tape and cassette physical specifications, tape record physical parameters, longitudinal track signal, and magnetic parameters, source picture and audio processing, helical track signal parameters, and magnetization. This will help you with a method of data blocks containing video, audio, and system data on the helical scan digital video.
