EBU Tech Doc Three parts of Tech Doc 3344

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1 EBU Tech Doc 3344 Andrew Mason BBC Research & Development Chairman of EBU Strategic Programme Group Future Audio and Radio Three parts of Tech Doc

-35-30 -25-23 -20-18 -15-12 -10-5 -1 0-35 -30-25 -23-20 -18-15 -12-10 -5-3 0 Limiter level HTM Default HTM Offset -35-23 LUFS equivalent Alignment level ITU-R BS.

2 Limiter level HTM Default HTM Offset LUFS equivalent Alignment level ITU-R BS.645 Reference level EN Max True Peak level EBU R Production level Encoders: HE-AAC/DD(+)/ DAB/DAB+ HDMI /SPDIF/ HDMI ARC in Home Theatre Mode HDMI TV Mode or SPDIF/AES3/HDMI ARC in Stereo Mode (mv) SCART/RCA -35 (dbu) 0 dbrs -3 dbrs -35 Peak FM deviation Conditions: Limiter level (khz) Peak FM deviation (khz) (mv) Output: +15 XLR or similar 1 khz sine wave in phase on Left and Right channel only, Dialnorm = -23, Mode = RF, DRC = None, PRL = -23, TL = RF modulation: Systems B/B1/D/ D1/G/H/K/K1/I/I1 RF modulation: Systems B/B1/D/ D1/G/H/K/K1/I/I1 SCART/RCA 6/2/2013 Three parts of Tech Doc 3344 Distribution systems (service aggregators) Three parts of Tech Doc 3344 Distribution systems (service aggregators) Alignment in analogue and digital transmission systems 2

-12-10 -5-3 0 Production level Encoders: HE-AAC/DD(+)/ DAB/DAB+ HDMI /SPDIF/ HDMI ARC in Home Theatre Mode -30-25 -23-20 -18-15 -12-10 -5-3 -1 0-3 -1 HDMI TV Mode or SPDIF/AES3/HDMI ARC in Stereo

3 Limiter level HTM Default HTM Offset LUFS equivalent Alignment level ITU-R BS.645 Reference level EN Max True Peak level EBU R Production level Encoders: HE-AAC/DD(+)/ DAB/DAB+ HDMI /SPDIF/ HDMI ARC in Home Theatre Mode HDMI TV Mode or SPDIF/AES3/HDMI ARC in Stereo Mode (mv) SCART/RCA -35 (dbu) 0 dbrs -3 dbrs -35 Peak FM deviation Conditions: Limiter level (khz) Peak FM deviation (khz) (mv) Output: +15 XLR or similar 1 khz sine wave in phase on Left and Right channel only, Dialnorm = -23, Mode = RF, DRC = None, PRL = -23, TL = Limiter level HTM Default HTM Offset LUFS equivalent Alignment level ITU-R BS.645 Reference level EN Max True Peak level EBU R 128 RF modulation: Systems B/B1/D/ D1/G/H/K/K1/I/I1 RF modulation: Systems B/B1/D/ D1/G/H/K/K1/I/I1 SCART/RCA Production level Encoders: HE-AAC/DD(+)/ DAB/DAB+ HDMI /SPDIF/ HDMI ARC in Home Theatre Mode HDMI TV Mode or SPDIF/AES3/HDMI ARC in Stereo Mode (mv) SCART/RCA -35 (dbu) 0 dbrs -3 dbrs -35 Peak FM deviation Conditions: Limiter level (khz) Peak FM deviation (khz) (mv) Output: +15 XLR or similar 1 khz sine wave in phase on Left and Right channel only, Dialnorm = -23, Mode = RF, DRC = None, PRL = -23, TL = RF modulation: Systems B/B1/D/ D1/G/H/K/K1/I/I1 RF modulation: Systems B/B1/D/ D1/G/H/K/K1/I/I1 SCART/RCA 6/2/2013 Three parts of Tech Doc 3344 Distribution systems (service aggregators) Alignment in analogue and digital transmission systems Three parts of Tech Doc 3344 Distribution systems (service aggregators) Alignment in analogue and digital transmission systems 3

4 Three parts of Tech Doc 3344 Distribution systems (service aggregators) Alignment in analogue and digital transmission systems Alignment in receivers HDMI S/PDIF 23 LUFS 31 LUFS Alignment in receivers 4

5 Alignment in receivers Three classes of devices Alignment in receivers Three classes of devices 1. STB, IRD set top box, integrated receiver decoder 5

IDTV integrated digital TV set IDTV integrated digital TV set 3.

6 Alignment in receivers Three classes of devices 1. STB, IRD set top box, integrated receiver decoder 2. IDTV integrated digital TV set Alignment in receivers Three classes of devices 1. STB, IRD set top box, integrated receiver decoder 2. IDTV integrated digital TV set 3. AVR Home theatre device, A/V receiver 6

7 Alignment in receivers General principles: Stereo TV output at 23 LUFS Surround sound Hi Fi output at 31 LUFS HDMI S/PDIF 23 LUFS 31 LUFS Alignment in receivers HDMI S/PDIF 23 LUFS 31 LUFS 7

8 Combinations of decoder MPEG audio Layer II with either Dolby Digital (AC 3), or MPEG 4 AAC 8

9 Combinations of decoder MPEG audio Layer II No change 23 LUFS 8dB attenuation 31 LUFS Combinations of decoder MPEG audio Layer II with Dolby Digital (AC 3) RF mode and 3dB 23 LUFS Line mode 31 LUFS 9

10 Combinations of decoder MPEG audio Layer II with MPEG 4 AAC ISO/IEC target_level = LUFS target_level = LUFS 10

11 Dynamic range control Dolby Digital use Line mode (for 31 LUFS outputs) use RF mode (for stereo) Dynamic range control Dolby Digital use Line mode d (for 31 LUFS outputs) t use RF mode (for stereo) AAC Presentation mode in ETSI TS dynamic_range_info() ISO/IEC , or compression_value ETSI TS

12 Analogue signals EBU Tech 3344 also describes SCART and RCA (phono) outputs FM for TV FM for radio 12

13 Complexity For all the information, please study EBU Tech Doc

14 Complexity For all the information, please study EBU Tech Doc 3344 Look out for revisions in the near future 14

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Enhanced Audio Features for High- Definition Broadcasts and Discs. Roland Vlaicu Dolby Laboratories, Inc.

Enhanced Audio Features for High- Definition Broadcasts and Discs Roland Vlaicu Dolby Laboratories, Inc. Entertainment is Changing High definition video Flat panel televisions Plasma LCD DLP New broadcasting