EAC3文档目录关键字对应中文解释

BIT STREAM SYNTAX 29

5.1 Synchronization Frame 29 帧同步

5.2 Semantics of Syntax Specification 29 语意

5.3 Syntax Specification 30  语法规范

5.3.1syncinfo: Synchronization Information 30 同步信息

5.3.2 bsi: Bit Stream Information 31  位流信息

5.3.3 audioblk: Audio Block 32  音频块

5.3.4 auxdata: Auxiliary Data 36辅助数据

5.3.5 errorcheck: Error Detection Code 37错误检测代码

5.4 Description of Bit Stream Elements 37位流元素的

5.4.1 syncinfo: Synchronization Information 37同步信息

5.4.1.1 syncword: Synchronization Word, 16 Bits 37同步字16 位

5.4.1.2 crc1: Cyclic Redundancy Check 1, 16 Bits 37循环冗余检查

5.4.1.3 fscod: Sample Rate Code, 2 Bits 37采样速率码

5.4.1.4 frmsizecod: Frame Size Code, 6 Bits 37帧大小码

5.4.2 bsi: Bit Stream Information 38位流信息

5.4.2.1 bsid: Bit Stream Identification, 5 Bits 38位流识别

5.4.2.2 bsmod: Bit Stream Mode, 3 Bits 38位流模式下，3 位

5.4.2.3 acmod: Audio Coding Mode, 3 Bits 38音频编码模式、 3 位  

5.4.2.4 cmixlev: Center Mix Level, 2 Bits 39中心混音电平

5.4.2.5 surmixlev: Surround Mix Level, 2 Bits 39环绕混音电平

5.4.2.6 dsurmod: Dolby Surround Mode, 2 Bits 39杜比环绕模式

5.4.2.7 lfeon: Low Frequency Effects Channel on, 1 Bit 40低频率影响信道上

5.4.2.8 dialnorm: Dialogue Normalization, 5 Bits 40对白归一化： 对话调质

5.4.2.9 compre: Compression Gain Word Exists, 1 Bit 40压缩获得字存在

5.4.2.10 compr: Compression Gain Word, 8 Bits 40压缩获得字

5.4.2.11 langcode: Language Code Exists, 1 Bit 40语言代码存在

5.4.2.12 langcod: Language Code, 8 Bits 40语言代码

5.4.2.13 audprodie: Audio Production Information Exists, 1 Bit 40音频产品信息存在

5.4.2.14 mixlevel: Mixing Level, 5 Bits 40混合水平

ATSCA/52:2012 Digital Audio Compression Standard 17 December 2012

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5.4.2.15roomtyp: Room Type, 2 Bits 41房间类型

5.4.2.16 dialnorm2: Dialogue Normalization, ch2, 5 Bits 41对话正常化

5.4.2.17 compr2e: Compression Gain Word Exists, ch2, 1 Bit 41压缩获得字存在

5.4.2.18 compr2: Compression Gain Word, ch2, 8 Bits 41压缩获得字

5.4.2.19 langcod2e: Language Code Exists, ch2, 1 Bit 41

5.4.2.20 langcod2: Language Code, ch2, 8 Bits 41

5.4.2.21 audprodi2e: Audio Production Information Exists, ch2, 1 Bit 41音频生产信息存在

5.4.2.22 mixlevel2: Mixing Level, ch2, 5 Bits 41混合水平

5.4.2.23 roomtyp2: Room Type, ch2, 2 Bits 42房间类型

5.4.2.24 copyrightb: Copyright Bit, 1 Bit 42版权位、

5.4.2.25 origbs: Original Bit Stream, 1 Bit 42原始比特流

5.4.2.26 timecod1e, timcode2e: Time Code (first and second) Halves Exist, 2Bits 42

5.4.2.27 timecod1: Time Code First Half, 14 Bits 42时间代码 （第一次半）

5.4.2.28 timecod2: Time Code Second Half, 14 Bits 42时间代码第二半

5.4.2.29 addbsie: Additional Bit Stream Information Exists, 1 Bit 42额外的位流信息存在

5.4.2.30 addbsil: Additional Bit Stream Information Length, 6 Bits 42长度

5.4.2.31 addbsi: Additional Bit Stream Information, [(addbsil+1) × 8] Bits 43

5.4.3 audblk: Audio Block 43 音频块

5.4.3.1 blksw[ch]: Block Switch Flag, 1 Bit 43 块开关标志

5.4.3.2 dithflag[ch]: Dither Flag, 1 Bit 43 抖动标记

5.4.3.3 dynrnge:-Dynamic Range Gain Word Exists, 1 Bit 43动态范围活得字存在

5.4.3.4 dynrng: Dynamic Range Gain Word, 8 Bits 43 动态范围活得

5.4.3.5 dynrng2e: Dynamic Range Gain Word Exists, ch2, 1 Bit 43

5.4.3.6 dynrng2: Dynamic Range Gain Word ch2, 8 Bits 43

5.4.3.7 cplstre: Coupling Strategy Exists, 1 Bit 43耦合策略存在

5.4.3.8 cplinu: Coupling in Use, 1 Bit 43耦合在使用中

5.4.3.9 chincpl[ch]: Channel in Coupling, 1 Bit 44通道耦合

5.4.3.10 phsflginu: Phase Flags in Use, 1 Bit 44阶段标志在使用中

5.4.3.11 cplbegf: Coupling Begin Frequency Code, 4 Bits 44耦合开始频率编码

5.4.3.12 cplendf: Coupling end Frequency Code, 4 Bits 44耦合结束频率编码

5.4.3.13 cplbndstrc[sbnd]: Coupling Band Structure, 1 Bit 44耦合带结构

5.4.3.14 cplcoe[ch]: Coupling Coordinates Exist, 1 Bit 44耦合协调存在

5.4.3.15 mstrcplco[ch]: Master Coupling Coordinate, 2 Bits 45主耦合协调

5.4.3.16 cplcoexp[ch][bnd]: Coupling Coordinate Exponent, 4 Bits 45耦合协调指数

5.4.3.17 cplcomant[ch][bnd]: Coupling Coordinate Mantissa, 4 Bits 45渠道指数策略

5.4.3.18 phsflg[bnd]: Phase Flag, 1 Bit 45阶段标志

5.4.3.19 rematstr: Rematrixing Strategy, 1 Bit 45策略

5.4.3.20 rematflg[rbnd]: Rematrix Flag, 1 Bit 45 策略标志

5.4.3.21 cplexpstr: Coupling Exponent Strategy, 2 Bits 46耦合指数策略

5.4.3.22 chexpstr[ch]: Channel Exponent Strategy, 2 Bits 46渠道指数策略

5.4.3.23 lfeexpstr: Low Frequency Effects CHannel Exponent Strategy, 1 bit 46低频率影响渠道指数策略

5.4.3.24 chbwcod[ch]: Channel Bandwidth Code, 6 Bits 46信道带宽编码

5.4.3.25 cplabsexp: Coupling Absolute Exponent, 4 Bits 46耦合绝对指数

5.4.3.26 cplexps[grp]: Coupling Exponents, 7 Bits 46耦合指数

5.4.3.27 exps[ch][grp]: Channel Exponents, 4 or 7 Bits 46通道指数

5.4.3.28 gainrng[ch]: Channel Gain Range Code, 2 Bits 47通道增益范围代码

5.4.3.29 lfeexps[grp]: Low Frequency Effects Channel Exponents, 4 or 7 Bits 47低频效果通道指数

5.4.3.30 baie: Bit Allocation Information Exists, 1 Bit 47位分配信息存在

5.4.3.31 sdcycod: Slow Decay Code, 2 Bits 47慢衰减代码

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5.4.3.32fdcycod: Fast Decay Code, 2 Bits 47快速衰减代码

5.4.3.33 sgaincod: Slow Gain Code, 2 Bits 47慢获得代码

5.4.3.34 dbpbcod: dB Per Bit Code, 2 Bits 47 每位 db代码

5.4.3.35 floorcod: Masking Floor Code, 3 Bits 47遮蔽层代码

5.4.3.36 snroffste: SNR Offset Exists, 1 Bit 47信噪比存在

5.4.3.37 csnroffst: Coarse SNR Offset, 6 Bits 47

5.4.3.38 cplfsnroffst: Coupling Fine SNR Offset, 4 Bits 47耦合精细的信噪比抵消

5.4.3.39 cplfgaincod: Coupling Fast Gain Code, 3 Bits 47快速耦合获得代码

5.4.3.40 fsnroffst[ch]: Channel Fine SNR Offset, 4 Bits 48通道细信噪比抵消

5.4.3.41 fgaincod[ch]: Channel Fast Gain Code, 3 Bits 48通道快速获得代码

5.4.3.42 lfefsnroffst: Low Frequency Effects Channel Fine SNR Offset, 4 Bits 48低频率影响信道细信噪比抵消

5.4.3.43 lfefgaincod: Low Frequency Effects Channel Fast Gain Code, 3 Bits 48低频效果通道快速获得代码

5.4.3.44 cplleake: Coupling Leak Initialization Exists, 1 Bit 48耦合泄漏初始化存在

5.4.3.45 cplfleak: Coupling Fast Leak Initialization, 3 Bits 48快速耦合泄漏初始化

5.4.3.46 cplsleak: Coupling Slow Leak Initialization, 3 Bits 48耦合缓慢泄漏初始化

5.4.3.47 deltbaie: Delta Bit Allocation Information Exists, 1 Bit 48三角洲位分配信息存在

5.4.3.48 cpldeltbae: Coupling Delta Bit Allocation Exists, 2 Bits 48耦合三角洲位分配存在

5.4.3.49 deltbae[ch]: Delta Bit Allocation Exists, 2 Bits 49三角洲位分配存在

5.4.3.50 cpldeltnseg: Coupling Delta Bit Allocation Number of Segments, 3 Bits49耦合三角洲位分配数量的段

5.4.3.51 cpldeltoffst[seg]: Coupling Delta Bit Allocation Offset, 5 Bits 49耦合三角洲位分配抵消

5.4.3.52 cpldeltlen[seg]: Coupling Delta Bit Allocation Length, 4 Bits 49耦合三角洲位分配长度

5.4.3.53 cpldeltba[seg]: Coupling Delta Bit Allocation, 3 Bits 49耦合三角洲比特分配

5.4.3.54 deltnseg[ch]: Channel Delta BitAallocation Number of Segments, 3 Bits49通道三角洲位分配数字段

5.4.3.55 deltoffst[ch][seg]: Channel Delta Bit Allocation Offset, 5 Bits 49通道三角洲位分配抵消

5.4.3.56 deltlen[ch][seg]: Channel Delta Bit Allocation Length, 4 Bits 50通道三角洲位分配抵消

5.4.3.57 deltba[ch][seg]: Channel Celta Bit Allocation, 3 Bits 50通道塞尔塔比特分配

5.4.3.58 skiple: Skip Length Exists, 1 Bit 50 跳过长度存在

5.4.3.59 skipl: Skip Length, 9 Bits 50跳过长度

5.4.3.60 skipfld: Skip Field, (skipl * 8) Bits 50 跳过字段

5.4.3.61 chmant[ch][bin]: Channel Mantissas, 0 to 16 Bits 50 通道尾数

5.4.3.62 cplmant[bin]: Coupling Mantissas, 0 to 16 Bits 50 耦合尾数

5.4.3.63 lfemant[bin]: Low Frequency Effects Channel Mantissas, 0 to 16 Bits 50
低频效果通道尾数

5.4.4 auxdata: Auxiliary Data Field 50辅助数据字段

5.4.4.1 auxbits: Auxiliary Data B its, nauxbits bits 51辅助数据bit

5.4.4.2 auxdatal: Auxiliary Data Length, 14 Bits 52 辅助数据长度

5.4.4.3 auxdatae: Auxiliary Data Exists, 1 Bit 52  辅助数据存在

5.4.5 errorcheck: Frame Error Detection Field 52帧错误检测场

5.4.5.1 crcrsv: CRC Reserved Bit, 1 Bit 52 校验保留位

5.4.5.2 crc2: Cyclic Redundancy Check 2, 16 Bits循环冗余检查