hash stringlengths 32 32 | doc_id stringlengths 7 13 | section stringlengths 3 121 | content stringlengths 0 2.2M |
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d42eb522967d110c6c642c9d4bb78e76 | 103 190 | 4.3.10.7.9 aspx_tic_left - A-SPX time interleaved coding in left channel - 1 bit | This value indicates the presence of time interleaved coding in the left channel, according to table 135. Table 135: aspx_tic_left aspx_tic_left Meaning 0 Time interleaved coding not present in left channel 1 Time interleaved coding present in left channel |
d42eb522967d110c6c642c9d4bb78e76 | 103 190 | 4.3.10.7.10 aspx_tic_right - A-SPX time interleaved coding in right channel - 1 bit | This value indicates the presence of time interleaved coding in the right channel, according to table 136. Table 136: aspx_tic_right aspx_tic_right Meaning 0 Time interleaved coding not present in right channel 1 Time interleaved coding present in right channel |
d42eb522967d110c6c642c9d4bb78e76 | 103 190 | 4.3.10.7.11 aspx_tic_used_in_slot[n] - A-SPX time interleaved coding used in slots - 1 bit | This bitstream element has been described in clause 4.3.10.6.6. |
d42eb522967d110c6c642c9d4bb78e76 | 103 190 | 4.3.10.7.12 aspx_ah_left - A-SPX add harmonics in left channel - 1 bit | This bit, if set, indicates that aspx_add_harmonic[0][n] data shall follow in the bitstream. |
d42eb522967d110c6c642c9d4bb78e76 | 103 190 | 4.3.10.7.13 aspx_ah_right - A-SPX add harmonics in right channel - 1 bit | This bit, if set, indicates that aspx_add_harmonic[1][n] data shall follow in the bitstream. ETSI ETSI TS 103 190 V1.1.1 (2014-04) 94 |
d42eb522967d110c6c642c9d4bb78e76 | 103 190 | 4.3.10.8 aspx_ec_data - A-SPX Huffman data | This is a function that returns the Huffman decoded signal and noise envelope scale factors from the bitstream. It takes the following arguments: data_type Variable indicating the whether to decode a signal or a noise envelope num_env Variable indicating the number of envelopes to decode freq_res Variable indicating th... |
d42eb522967d110c6c642c9d4bb78e76 | 103 190 | 4.3.10.8.1 aspx_huff_data - Huffman decoding for A-SPX values | This is a function which returns an array of scale factors of a decoded signal or noise envelope. It takes the following arguments: data_type Variable indicating the whether to decode a signal or a noise envelope sbg Variable indicating the number of subband groups in the current envelope qm Variable indicating the qua... |
d42eb522967d110c6c642c9d4bb78e76 | 103 190 | 4.3.10.8.2 aspx_hcw - A-SPX Huffman code word - 1 to x bits | This value indicates the Huffman code word used for Huffman decoding. |
d42eb522967d110c6c642c9d4bb78e76 | 103 190 | 4.3.10.8.3 huff_decode_diff(hcb, hcw) - Huffman decoding for differences | This is a function which takes a Huffman codebook table and a Huffman codeword as input and returns the index of the Huffman codeword in the Huffman codebook table subtracted by the Huffman codebook offset cb_off, which is specified together with the Huffman codebook table. |
d42eb522967d110c6c642c9d4bb78e76 | 103 190 | 4.3.11 Advanced coupling - A-CPL | |
d42eb522967d110c6c642c9d4bb78e76 | 103 190 | 4.3.11.1 acpl_config_1ch - A-CPL 1-channel configuration | |
d42eb522967d110c6c642c9d4bb78e76 | 103 190 | 4.3.11.1.1 acpl_1ch_mode - A-CPL 1-channel mode - via table | This helper element indicates the A-CPL 1-channel mode as shown in table 137. Table 137: acpl_1ch_mode acpl_1ch_mode Meaning 0 FULL 1 PARTIAL |
d42eb522967d110c6c642c9d4bb78e76 | 103 190 | 4.3.11.1.2 acpl_num_param_bands_id - A-CPL number of parameter bands - 2 bits | A parameter band is a grouping of QMF subbands. Advanced Coupling parameters are transmitted per parameter band. This value indicates the number of parameter bands, acpl_num_param_bands, as shown in table 138. Table 138: acpl_num_param_bands_id acpl_num_param_bands_id acpl_num_param_bands 0 15 1 12 2 9 3 7 ETSI ETSI TS... |
d42eb522967d110c6c642c9d4bb78e76 | 103 190 | 4.3.11.1.3 acpl_quant_mode - A-CPL quantization mode - 1 bit | This value indicates coarse or fine quantization. Table 139: acpl_quant_mode acpl_quant_mode Meaning 0 Fine 1 Coarse |
d42eb522967d110c6c642c9d4bb78e76 | 103 190 | 4.3.11.1.4 acpl_qmf_band - A-CPL QMF band - 3 bits | This value indicates a QMF subband below which the signal is mid-side coded, and above or at which, the signal is coded using advanced coupling. |
d42eb522967d110c6c642c9d4bb78e76 | 103 190 | 4.3.11.2 acpl_cfg_2ch - A-CPL 2-channel configuration | |
d42eb522967d110c6c642c9d4bb78e76 | 103 190 | 4.3.11.2.1 acpl_num_param_bands_id - A-CPL number of parameter bands - 2 bits | This bitstream element has been described in clause 4.3.11.1.2. |
d42eb522967d110c6c642c9d4bb78e76 | 103 190 | 4.3.11.2.2 acpl_quant_mode_0 - A-CPL quantization mode 0 - 1 bit | This value indicates coarse or fine quantization for acpl_alpha and acpl_beta coefficients. The possible values of this bitstream element are shown in clause 4.3.11.1.3. |
d42eb522967d110c6c642c9d4bb78e76 | 103 190 | 4.3.11.2.3 acpl_quant _mode_1 - A-CPL quantization mode 1 - 1 bit | This value indicates coarse or fine quantization for acpl_gamma coefficients. The possible values of this bitstream element are shown in clause 4.3.11.1.3. |
d42eb522967d110c6c642c9d4bb78e76 | 103 190 | 4.3.11.3 acpl_data_1ch - A-CPL 1-channel data | acpl_alpha1 and acpl_beta1 are identifiers used for Huffman table dequantization. |
d42eb522967d110c6c642c9d4bb78e76 | 103 190 | 4.3.11.4 acpl_data_2ch - A-CPL 2-channel data | acpl_alpha1, acpl_alpha2, acpl_beta1, acpl_beta2, acpl_beta3, acpl_gamma1, acpl_gamma2, acpl_gamma3, acpl_gamma4, acpl_gamma5, and acpl_gamma6 are identifiers used for Huffman table dequantization. |
d42eb522967d110c6c642c9d4bb78e76 | 103 190 | 4.3.11.5 acpl_framing_data - A-CPL framing data | |
d42eb522967d110c6c642c9d4bb78e76 | 103 190 | 4.3.11.5.1 acpl_interpolation_type - A-CPL interpolation type - 1 bit | This value indicates the type of interpolation used. Table 140: acpl_interpolation_type acpl_interpolation_type Meaning 0 smooth A-CPL interpolation 1 steep A-CPL interpolation ETSI ETSI TS 103 190 V1.1.1 (2014-04) 96 |
d42eb522967d110c6c642c9d4bb78e76 | 103 190 | 4.3.11.5.2 acpl_num_param_sets_cod - A-CPL number of parameter sets per frame - 1 bit | This value indicates the value acpl_num_param_sets which describes how many parameter sets per frame are transmitted in the bitstream. Table 141: acpl_num_param_sets acpl_num_param_sets_cod acpl_num_param_sets 0 1 1 2 |
d42eb522967d110c6c642c9d4bb78e76 | 103 190 | 4.3.11.5.3 acpl_param_subsample - A-CPL parameter change at subsample - 5 bits | When steep interpolation is used, this value indicates the QMF subsample (0-31) at which the parameter set values change. |
d42eb522967d110c6c642c9d4bb78e76 | 103 190 | 4.3.11.6 acpl_huff_data - A-CPL Huffman data | |
d42eb522967d110c6c642c9d4bb78e76 | 103 190 | 4.3.11.6.1 acpl_hcw - A-CPL Huffman code word - 1 to x bits | This value indicates the Huffman code word used for Huffman decoding. The following pseudocode describes how to choose the correct Huffman table for decoding the bitstream elements. Pseudocode get_acpl_hcb(data_type, quant_mode, hcb_type) { // data_type = {ALPHA, BETA, BETA3, GAMMA} // quant_mode = {COARSE, FINE) // hc... |
d42eb522967d110c6c642c9d4bb78e76 | 103 190 | 4.3.12 Basic and extended metadata | |
d42eb522967d110c6c642c9d4bb78e76 | 103 190 | 4.3.12.1 metadata - Metadata | |
d42eb522967d110c6c642c9d4bb78e76 | 103 190 | 4.3.12.1.1 tools_metadata_size_value - Size of tools metadata - 7 bits | This field, potentially extended with variable_bits(), generates tools_metadata_size, indicating the size in bits of the metadata related to the DRC and dialog enhancement tools. |
d42eb522967d110c6c642c9d4bb78e76 | 103 190 | 4.3.12.1.2 b_more_bits - More bits flag - 1 bit | This bit indicates the presence of additional variable_bits to be used for the tools_metadata_size determination. |
d42eb522967d110c6c642c9d4bb78e76 | 103 190 | 4.3.12.1.3 b_umd_payloads_substream - UMD payloads substream flag - 1 bit | This bit, if set, indicates the presence of a umd_payloads_substream() element. ETSI ETSI TS 103 190 V1.1.1 (2014-04) 97 |
d42eb522967d110c6c642c9d4bb78e76 | 103 190 | 4.3.12.2 basic_metadata - Basic metadata | |
d42eb522967d110c6c642c9d4bb78e76 | 103 190 | 4.3.12.2.1 dialnorm_bits - Input reference level - 7 bits | This 7-bit code specifies the dialnorm in dBFS, in steps of ¼ dBFS. dialnorm indicates the input reference level. = −0,25 × _ [dB] |
d42eb522967d110c6c642c9d4bb78e76 | 103 190 | 4.3.12.2.2 b_more_basic_metadata - More basic metadata flag - 1 bit | This bit, if set, indicates that more basic metadata is available. |
d42eb522967d110c6c642c9d4bb78e76 | 103 190 | 4.3.12.2.3 b_further_loudness_info - Additional loudness information flag - 1 bit | This bit, if set, indicates that additional loudness information is present in a further_loudness_info() element. |
d42eb522967d110c6c642c9d4bb78e76 | 103 190 | 4.3.12.2.4 b_prev_dmx_info - Previous downmix information flag - 1 bit | This bit, if set, indicates that downmix information of the signal before encoding is present. |
d42eb522967d110c6c642c9d4bb78e76 | 103 190 | 4.3.12.2.5 pre_dmixtyp_2ch - Previous downmix to 2 channels type - 3 bits | This 3-bit code indicates what downmix was performed before encoding into 2 channels as shown in table 142. Table 142: pre_dmixtyp_2ch pre_dmixtyp_2ch Downmix equation 0 unknown 1 Lo = L + (-3 dB) × C + (-3 dB) × Ls Ro = R + (-3 dB) × C + (-3 dB) × Rs 2 Lt = L + (-3 dB) × C - (-3 dB) × Ls - (-3 dB) × Rs Rt = R + (-3 dB... |
d42eb522967d110c6c642c9d4bb78e76 | 103 190 | 4.3.12.2.6 phase90_info_2ch - Phase 90 in 2 channels info - 2 bits | This 2-bit code indicates whether a 90° phase filtering was done before downmixing and encoding into 2 channels as shown in table 143. Table 143: phase90_info_2ch phase90_info_2ch Semantics 0 not indicated 1 reserved 2 surrounds have undergone a 90° phase shift before downmixing and encoding 3 surrounds have not underg... |
d42eb522967d110c6c642c9d4bb78e76 | 103 190 | 4.3.12.2.7 b_dmx_coeff - Downmix coefficients present flag - 1 bit | This bit, if set, indicates that downmix coefficients are present. |
d42eb522967d110c6c642c9d4bb78e76 | 103 190 | 4.3.12.2.8 loro_center_mixgain - LoRo center mix gain - 3 bits | This 3-bit code indicates the gain to be used for LoRo downmixing the center channel of a 5 or 7 channel signal into 2 channels as shown in table 144. ETSI ETSI TS 103 190 V1.1.1 (2014-04) 98 Table 144: loro_{center,surround}_mixgain loro_center_mixgain loro_surround_mixgain LoRo mixgain 000 1,414 (+3,0 dB) 001 1,189 (... |
d42eb522967d110c6c642c9d4bb78e76 | 103 190 | 4.3.12.2.9 loro_surround_mixgain - LoRo surround mix gain - 3 bits | This 3-bit code indicates the gain to be used for LoRo downmixing the surround channels of a 5 or 7 channel signal into 2 channels as shown in table 144. |
d42eb522967d110c6c642c9d4bb78e76 | 103 190 | 4.3.12.2.10 b_loro_dmx_loud_corr - LoRo downmix loudness correction flag - 1 bit | This bit, if set, indicates that LoRo downmix loudness correction data is present. |
d42eb522967d110c6c642c9d4bb78e76 | 103 190 | 4.3.12.2.11 loro_dmx_loud_corr - LoRo downmix loudness correction - 5 bits | This 5-bit code indicates a LoRo downmix loudness correction. This correction factor is used to calibrate downmix loudness to original program loudness loro_corr_gain = (15 −loro_dmx_loud_corr) 2 ⁄ [dB2] A value of 31 is reserved, and if present indicates a gain of 0 [dB]. |
d42eb522967d110c6c642c9d4bb78e76 | 103 190 | 4.3.12.2.12 b_ltrt_mixinfo - LtRt downmix info present - 1 bit | This bit, if set, indicates that LtRt downmix coefficients are present. If not set, the LtRt downmix coefficients are the same as the LoRo downmix coefficients. |
d42eb522967d110c6c642c9d4bb78e76 | 103 190 | 4.3.12.2.13 ltrt_center_mixgain - LtRt center mix gain - 3 bits | This 3-bit code indicates the gain to be used for LtRt downmixing the center channel of a 5 or 7 channel signal into 2 channels as shown in table 144. |
d42eb522967d110c6c642c9d4bb78e76 | 103 190 | 4.3.12.2.14 ltrt_surround_mixgain - LtRt surround mix gain - 3 bits | This 3-bit code indicates the gain to be used for LtRt downmixing the surround channels of a 5 or 7 channel signal into 2 channels as shown in table 144. |
d42eb522967d110c6c642c9d4bb78e76 | 103 190 | 4.3.12.2.15 b_ltrt_dmx_loud_corr - LtRt downmix loudness correction flag - 1 bit | This bit, if set, indicates that LtRt downmix loudness correction data is present. |
d42eb522967d110c6c642c9d4bb78e76 | 103 190 | 4.3.12.2.16 ltrt_dmx_loud_corr - LtRt downmix loudness correction - 5 bits | This field indicates a LtRt downmix loudness correction. This correction factor is used to calibrate downmix loudness to original program loudness ltrt_corr_gain = (15 −ltrt_dmx_loud_corr) 2 ⁄ [dB2] A value of 31 is reserved, and if present indicates a gain of 0 [dB]. ETSI ETSI TS 103 190 V1.1.1 (2014-04) 99 |
d42eb522967d110c6c642c9d4bb78e76 | 103 190 | 4.3.12.2.17 b_lfe_mixinfo - LFE downmix info present - 1 bit | This bit, if set, indicates that a LFE mix gain is present. |
d42eb522967d110c6c642c9d4bb78e76 | 103 190 | 4.3.12.2.18 lfe_mixgain - LFE mix gain - 5 bits | This field indicates the gain to be used for mixing the LFE channel: = 10 −lfe_mixgain The LFE mix gain range is -21 dB…+10 dB. |
d42eb522967d110c6c642c9d4bb78e76 | 103 190 | 4.3.12.2.19 preferred_dmx_method - Preferred downmix method - 2 bits | This 2-bit code indicates the preferred way of downmixing from 5 to 2 channel as shown in table 145. Table 145: preferred_dmx_method preferred_dmx_method Used coefficients 0 not indicated 1 loro 2 ltrt 3 ltrt |
d42eb522967d110c6c642c9d4bb78e76 | 103 190 | 4.3.12.2.20 b_predmxtyp_5ch - Previous downmix to 5 channels flag - 1 bit | This bit, if set, indicates that downmix information of the signal before encoding is present. |
d42eb522967d110c6c642c9d4bb78e76 | 103 190 | 4.3.12.2.21 pre_dmixtyp_5ch - Previous downmix to 5 channels type - 3 bits | This 3-bit code indicates what downmix was performed before encoding into 5 channels as shown in table 146. Table 146: pre_dmixtyp_5ch pre_dmixtyp_5ch Downmix equation 0 L = L R = R C = C LFE = LFE Ls' = Ls + (-3 dB) × Cs Rs' = Rs + (-3 dB) × Cs 1 L = L R = R C = C LFE = LFE Ls' = (-3 dB) × Ls + (-3 dB) × Lrs Rs' = (-3... |
d42eb522967d110c6c642c9d4bb78e76 | 103 190 | 4.3.12.2.22 b_preupmixtyp_5ch - Previous upmix to 5 channels flag - 1 bit | This bit, if set, indicates that upmix information of the signal before encoding is present. |
d42eb522967d110c6c642c9d4bb78e76 | 103 190 | 4.3.12.2.23 pre_upmixtyp_5ch - Previous upmix to 5 channels type - 4 bits | This 4-bit code indicates what upmix from 2 channels was performed before encoding into 5 channels as shown in table 147. Table 147: pre_upmixtyp_5ch pre_upmixtyp_5ch Upmix type 0 Dolby® Pro Logic® 1 Dolby® Pro Logic® II Movie Mode 2 Dolby® Pro Logic® II Music Mode 3 Dolby® Professional Upmixer 4…15 Reserved |
d42eb522967d110c6c642c9d4bb78e76 | 103 190 | 4.3.12.2.24 b_upmixtyp_7ch - Previous upmix to 7 channels flag - 1 bit | This bit, if set, indicates that upmix information of the signal before encoding is present. |
d42eb522967d110c6c642c9d4bb78e76 | 103 190 | 4.3.12.2.25 pre_upmixtyp_3_4 - Previous upmix to 7 channels type - 2 bits | This 2-bit code indicates what upmix from 5 channels was performed before encoding into 7 channels (3/4) as shown in table 148. Table 148: pre_upmixtyp_3_4 pre_upmixtyp_3_4 Upmix type 0 Dolby® Pro Logic® IIx Movie Mode 1 Dolby® Pro Logic® IIx Music Mode 2…3 Reserved |
d42eb522967d110c6c642c9d4bb78e76 | 103 190 | 4.3.12.2.26 pre_upmixtyp_3_2_2 - Previous upmix to 7 channels type - 2 bits | This 2-bit code indicates what upmix from 5 channels was performed before encoding into 7 channels (3/2/2) as shown in table 149. Table 149: pre_upmixtyp_3_2_2 pre_upmixtyp_3_2_2 Upmix type 0 Dolby® Pro Logic® IIz Height 1 Reserved |
d42eb522967d110c6c642c9d4bb78e76 | 103 190 | 4.3.12.2.27 phase90_info_mc - Phase 90 in multi-channel info - 2 bits | This 2-bit code indicates whether a 90° phase filtering was done before encoding as shown in table 150. Table 150: phase90_info_mc phase90_info_mc Semantics 0 not indicated 1 surrounds have undergone a 90° phase shift before encoding 2 surrounds have not undergone a 90° phase shift before encoding 3 reserved ETSI ETSI ... |
d42eb522967d110c6c642c9d4bb78e76 | 103 190 | 4.3.12.2.28 b_surround_attenuation_known - Surround attenuation known flag - 1 bit | This bit should be ignored by the decoder. |
d42eb522967d110c6c642c9d4bb78e76 | 103 190 | 4.3.12.2.29 b_lfe_attenuation_known - LFE attenuation known flag - 1 bit | This bit should be ignored by the decoder. |
d42eb522967d110c6c642c9d4bb78e76 | 103 190 | 4.3.12.2.30 b_dc_blocking - DC blocking flag - 1 bit | This bit, if set, indicates that DC blocking information is present. |
d42eb522967d110c6c642c9d4bb78e76 | 103 190 | 4.3.12.2.31 dc_block_on - DC blocking - 1 bit | This bit, if set, indicates that the signal has been DC filtered before encoding. The signal has not been DC filtered before encoding if this bit is not set. |
d42eb522967d110c6c642c9d4bb78e76 | 103 190 | 4.3.12.3 further_loudness_info - Additional loudness information | |
d42eb522967d110c6c642c9d4bb78e76 | 103 190 | 4.3.12.3.1 loudness_version - Loudness version - 2 bits | This 2-bit field, which is extendable via extended_loudness_version, indicates the version of the loudness payload. For loudness data payloads that conform to the present document, the loudness_version field shall be set to '00', and thus the extended_loudness_version field shall not be present in the payload. |
d42eb522967d110c6c642c9d4bb78e76 | 103 190 | 4.3.12.3.2 extended_loudness_version - Loudness version extension - 4 bits | This 4-bit field, which is only present if loudness_version=3, holds an extension to the loudness_version. |
d42eb522967d110c6c642c9d4bb78e76 | 103 190 | 4.3.12.3.3 loud_prac_type - Loudness practice type - 4 bits | This 4-bit field indicates which recommended practice for programme loudness measurement has been followed to generate the programme loudness of the current audio substream as shown in table 151. Table 151: loud_prac_type loud_prac_type Semantics 0000 Loudness regulation compliance not indicated 0001 Programme loudness... |
d42eb522967d110c6c642c9d4bb78e76 | 103 190 | 4.3.12.3.4 b_loudcorr_dialgate - Loudness correction dialog gating flag - 1 bit | This bit, if set, indicates whether the loudness of the programme has been corrected using dialog gating. |
d42eb522967d110c6c642c9d4bb78e76 | 103 190 | 4.3.12.3.5 dialgate_prac_type - Dialog gating practice type - 3 bits | This 3-bit field indicates which dialog gating method has been utilized for loudness correction with current audio substream as shown in table 152. The dialgate_prac_type parameter is only indicated if the b_loudcorr_dialgate parameter preceding in the bitstream is set to '1'. ETSI ETSI TS 103 190 V1.1.1 (2014-04) 102 ... |
d42eb522967d110c6c642c9d4bb78e76 | 103 190 | 4.3.12.3.6 b_loudcorr_type - Loudness correction type - 1 bit | If the loudness of the programme has been corrected with an infinite look-ahead (file based) loudness correction process, the value of the b_loudcorr_type field is set to '0'. If the loudness of the programme has been corrected using a realtime loudness measurement, the value of this field is set to '1'. |
d42eb522967d110c6c642c9d4bb78e76 | 103 190 | 4.3.12.3.7 b_loudrelgat - Loudness value relative gated flag - 1 bit | This bit, if set, indicates that a loudrelgat field is present in the payload. |
d42eb522967d110c6c642c9d4bb78e76 | 103 190 | 4.3.12.3.8 loudrelgat - Loudness value relative gated - 11 bits | This 11-bit field indicates the integrated loudness of the audio programme, measured according to Recommendation ITU-R BS.1770 [i.3] and without any gain adjustments due to dialnorm and dynamic range compression being applied. The loudrelgat parameter is encoded according to: loudrelgat = _ _ _ × ... |
d42eb522967d110c6c642c9d4bb78e76 | 103 190 | 4.3.12.3.9 b_loudspchgat - Loudness value speech gated flag - 1 bit | This bit, if set, indicates that a loudspchgat and a dialgate_prac_type field is present in the payload. |
d42eb522967d110c6c642c9d4bb78e76 | 103 190 | 4.3.12.3.10 loudspchgat - Loudness value speech gated - 11 bits | This 11-bit field indicates the integrated dialog-based loudness of the entire audio programme, measured according to formula (2) of Recommendation ITU-R BS.1770 [i.3] with dialog-gating. The loudspchgat value represents the dialog-based loudness without any gain adjustments due to dialnorm and dynamic range compressio... |
d42eb522967d110c6c642c9d4bb78e76 | 103 190 | 4.3.12.3.11 dialgate_prac_type - Dialog gating practice type - 3 bits | This 3-bit field indicates which dialog gating method has been utilized to generate the loudspchgat parameter value for the current audio substream as shown in table 152. The dialgate_prac_type parameter is only indicated if the b_loudspchgat parameter preceding in the bitstream is set to '1'. ETSI ETSI TS 103 190 V1.1... |
d42eb522967d110c6c642c9d4bb78e76 | 103 190 | 4.3.12.3.12 b_loudstrm3s - Loudness values short term 3s flag - 1 bit | This bit, if set, indicates that a loudstrm3s field is present in the payload. |
d42eb522967d110c6c642c9d4bb78e76 | 103 190 | 4.3.12.3.13 loudstrm3s - Loudness values short term 3s - 11 bits | This 11-bit field indicates the loudness of the preceding 3 seconds of the audio programme, measured according to Recommendation ITU-R BS.1771 [i.4] and without any gain adjustments due to dialnorm and dynamic range compression being applied. The loudstrm3s parameter is encoded according to: loudstrm3s = _ _... |
d42eb522967d110c6c642c9d4bb78e76 | 103 190 | 4.3.12.3.14 b_max_loudstrm3s - Max loudness value short term 3s flag - 1 bit | This bit, if set, indicates that a max_loudstrm3s field follows in the bitstream. |
d42eb522967d110c6c642c9d4bb78e76 | 103 190 | 4.3.12.3.15 max_loudstrm3s - Max loudness value short term 3s - 11 bits | This 11-bit field indicates the maximum short-term loudness of the audio programme, measured according to Recommendation ITU-R BS.1771 [i.4] and without any gain adjustments due to dialnorm and dynamic range compression being applied. The max_loudstrm3s parameter is encoded according to: max_loudstrm3s = _ _ ... |
d42eb522967d110c6c642c9d4bb78e76 | 103 190 | 4.3.12.3.16 b_truepk - True peak flag - 1 bit | This bit, if set, indicates that a truepk field follows in the bitstream. |
d42eb522967d110c6c642c9d4bb78e76 | 103 190 | 4.3.12.3.17 truepk - True peak - 11 bits | This 11-bit field indicates the true peak sample value of the programme measured since the previous value was sent in the bitstream. The truepk value is measured according to Annex 2 of Recommendation ITU-R BS.1770 [i.3]. The truepk parameter is encoded according to: truepk = _ _ × 10 + 0,5 + 1 024 and dec... |
d42eb522967d110c6c642c9d4bb78e76 | 103 190 | 4.3.12.3.18 b_max_truepk - Max true peak flag - 1 bit | This bit, if set, indicates that a max_truepk field follows in the bitstream. |
d42eb522967d110c6c642c9d4bb78e76 | 103 190 | 4.3.12.3.19 max_truepk - Max true peak - 11 bits | This 11-bit field indicates the maximum true peak sample value of the programme measured according to Annex 2 of Recommendation ITU-R BS.1770 [i.3]. ETSI ETSI TS 103 190 V1.1.1 (2014-04) 104 The max_truepk parameter is encoded according to: max_truepk = __ _ × 10 + 0,5 + 1 024 and decoded according to: ... |
d42eb522967d110c6c642c9d4bb78e76 | 103 190 | 4.3.12.3.20 b_prgmbndy - Programme boundary flag - 1 bit | This bit, if set, indicates that programme boundary data is present in the payload. |
d42eb522967d110c6c642c9d4bb78e76 | 103 190 | 4.3.12.3.21 prgmbndy_bit - Programme boundary bit - 1 bit | This bit, which can be present multiple times, is used for the determination of the programme boundary value prgmbndy. The value of the variable prgmbndy shall be equal to the number of frames between the current frame and the frame that contains the boundary between two different programmes. This data may be used to d... |
d42eb522967d110c6c642c9d4bb78e76 | 103 190 | 4.3.12.3.22 b_end_or_start - Programme boundary end or start flag - 1 bit | If this field is set to '1', then the value of the prgmbndy variable indicates the number of frames between the current frame and the upcoming frame that contains the next programme boundary. If the b_end_or_start field is '0', then the value of the prgmbndy variable indicates the number of frames between the current f... |
d42eb522967d110c6c642c9d4bb78e76 | 103 190 | 4.3.12.3.23 b_prgmbndy_offset - Programme boundary offset flag - 1 bit | This bit, if set, indicates that a prgmbndy_offset field is present in the payload. |
d42eb522967d110c6c642c9d4bb78e76 | 103 190 | 4.3.12.3.24 prgmbndy_offset - Programme boundary offset - 11 bits | This 11-bit field indicates the offset in audio samples from the first sample of the frame indicated by the prgmbndy variable to the actual audio sample in that frame that corresponds to the programme boundary. |
d42eb522967d110c6c642c9d4bb78e76 | 103 190 | 4.3.12.3.25 b_lra - Loudness range flag - 1 bit | This bit, if set, indicates that an lra field follows in the bitstream. |
d42eb522967d110c6c642c9d4bb78e76 | 103 190 | 4.3.12.3.26 lra - Loudness range - 10 bits | This 10-bit field indicates the loudness range of the programme as specified in EBU Tech Document 3342 [i.10]. The lra parameter is encoded according to: lra = _ × 10 + 0,5 and decoded according to: _ = lra/10 [LU] 4.3.12.3.27 lra_prac_type – Loudness range measurement practice type - 3 bits This... |
d42eb522967d110c6c642c9d4bb78e76 | 103 190 | 4.3.12.3.28 b_loudmntry - Momentary loudness flag - 1 bit | This bit, if set, indicates that a loudmntry field follows in the bitstream. |
d42eb522967d110c6c642c9d4bb78e76 | 103 190 | 4.3.12.3.29 loudmntry - Momentary loudness - 11 bits | This 11-bit field indicates the momentary loudness of the programme measured since the previous value was sent in the bitstream. The loudmntry measurement is specified in Recommendation ITU-R BS.1771 [i.4] (or EBU Tech 3341 [i.11]) without any gain adjustments due to dialnorm and dynamic range compression applied. The ... |
d42eb522967d110c6c642c9d4bb78e76 | 103 190 | 4.3.12.3.30 b_max_loudmntry - Maximum momentary loudness flag - 1 bit | This bit, if set, indicates that a max_loudmntry field follows in the bitstream. |
d42eb522967d110c6c642c9d4bb78e76 | 103 190 | 4.3.12.3.31 max_loudmntry - Maximum momentary loudness - 11 bits | This 11-bit field indicates the maximum momentary loudness of the programme measured as specified in Recommendation ITU-R BS.1771 [i.4] (or EBU Tech 3341 [i.11]) without any gain adjustments due to dialnorm and dynamic range compression applied. The max_loudmntry parameter is encoded according to: max_loudmntry = ... |
d42eb522967d110c6c642c9d4bb78e76 | 103 190 | 4.3.12.3.32 b_extension - Extension flag - 1 bit | This bit, if set, indicates that further loudness extension data is present. |
d42eb522967d110c6c642c9d4bb78e76 | 103 190 | 4.3.12.3.33 e_bits_size - Extension size - 5 bits | This 5-bit field, potentially extended with variable_bits(), indicates the size of the extension_bits field in bits. |
d42eb522967d110c6c642c9d4bb78e76 | 103 190 | 4.3.12.3.34 extension_bits - Extension bits - e_bits_size bits | This field of size e_bits_size holds extension bits. The content of these bits is not defined in the present document. ETSI ETSI TS 103 190 V1.1.1 (2014-04) 106 |
d42eb522967d110c6c642c9d4bb78e76 | 103 190 | 4.3.12.4 extended_metadata | |
d42eb522967d110c6c642c9d4bb78e76 | 103 190 | 4.3.12.4.1 b_associated - Associate substream flag - parameter | This parameter is true when the containing substream is an associate substream, either indicated by the presentation_config or by the content_classifier. |
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