1、 CENELEC EN*b111S-5 95 I 340Li583 0155838 977 W BRITISH STANDARD Digital audio tape cassette system (DAT) BS EN Part 5. DAT for professional use The European Standard EN 61119-5 : 1995 has the status of a British Standard 61119-5 1995 LEC 1119-5 : 1993 CENELEC EN*b3339-5 95 3q04583 0355839 803 BS EN
2、 61119-5 : 1995 Committees responsible for this British Standard The preparation of this British Standard was entrusted to Rchnical Committee EPL/GO, Recording, upon which the following bodies were represented: Association of Professional Recording Services Limited Audio Engineering Society British
3、Broadcasting Corporation British Kinematograph, Sound and Television Society British Ripe Industry Association Federation of the Electronics Industry ITVAssociation (ITVA) National Council for Educational Rchnology (NCET) Royal Photographic Society Royal Television Society This British Standard, hav
4、ing been prepared under the direction of the Electrotechnicai Sector Board, was published under the authority of the Standards Board and comes into effect on 15 July 1995 O BSI 1995 The following BSI references relate to the work on this standard: Committee reference EPLIGO Draft for comment 89/3298
5、2 DC ISBN O 580 24319 2 Amendments issued since publication A-e /Text affected CENELEC EN*bL339-5 95 m 3404583 0355840 525 m BS EN 61119-5 : 1995 Contents h3e Committees responsible Inside front cover National foreword 11 Fore word 2 kxt of EN 61119-5 : 1995 3 i National foreword This British Standa
6、rd has been prepared by lchnical Committee EPL/60 and is the English language version of EN 61119-5 : 1995 Digital audio tape cassette system Part 5: DAT for pofessional use, published by the European Committee for Electrotechnical Standardization (CENELEC). It is identical with IEC 1119-5 : 1993, p
7、ublished by the International Electrotechnical Commission (IEC). BS EN 61119 consists of the following Parts : Part 1 Dimensions and chamcteristks Part 2 DAT calibration zpe Part 3 DAT tape properties Part 4 Characterpack fmt part 5 DAT for pmf:/T) (2) j = 120000RH + 2000 RM + 33RS + INT( RS/3 ) + R
8、F (1 1 (3) II rn. 1 = TTj mod DT TCM = INT( mi / Tfs ) (4) (5) where j i time and control code frame observed at the beginning of the j-th DAT frame. is the total number of DAT frames from zero up to the beginning of a DAT frame; is the total number of the IEC time and control code frames from zero
9、up to the beginning of the IEC O 0:o:o:o In the case of 525/60 (non-drop frame) : In the case of 525/60 (drop frame) : In the case of 625150 : i= 108000TH+ 1800TM+30TS+ TF (6) (7) i=9OOOOTH+15OOTM+25TS+ TF (8) i= 86400TH + 1440TM + 24TS + TF (9) i = 107892 TH + 1798 TM + 21NT( TM/1 O)+ 30 TS + TF In
10、 the case of Film : where TH are the hours stored in the i-th IEC time and control code frame; TM are the minutes stored in the i-th IEC time and control code frame: TS are the seconds stored in the i-th IEC time and control code frame; TF are the frames stored in the i-th IEC time and control code
11、frame; TC is a period of IEC time and control code frame; DT is a period of DAT frame; n. Ti is the time of IEC time and control code at the beginning of the j-th OAT frame; m. is the time difference between TT and jDT; 1 Tfs is a period of the sampling clock used for IEC time and control code conve
12、rsion from IEC timie and control code to Pro R Time; TCM TC. DT. ni. ni. mi and Tfs are expressed in the same unit. is the time difference between the beginning of the j-th OAT frame and the beginning of IEC time and control code frame observed at the beginning of the jth OAT frame; is a TC Marker e
13、xpressing time difference in units of Tis; I d i i+ 1 - 0:o :o: 1 . TH: TM: TS: TF - IEC time and control code frame o L DTJ i . OAT frame i+ 1 Data frame reference signal Page 12 EN 61119-5 : 1995 b) Conversion from Pro DIO sample address code to Pro R Time 1) Pro DIO sample address code to be reco
14、rded in Pro R Time pack shall be 32-bit binary code transmitted over the sub-frame of channel 1. The conversion rule from Pro DIO sample address code to Pro R Time shall be given by the following equa- tions (10) to (17). TLO = TB + n (1 0) where TLO is the 32-bit binary code corresponding to the fi
15、rst sample (LO) of a OAT frame; TB is the 32-bit binary code in the channel status data of the DIO block which is observed at the begin- ning of the OAT frame: n is the time difference (unit: sample) from the beginning of the DIO block to the beginning of the DAT frame. 2) Conversion from TLO (32-bi
16、t binary code) to Pro R Time Sample No. = TLO mod DTs where DTs is the number of audio samples in one DAT frame. FS = 48 kH - DTs = 1440 FS = 44.1 kHZ - DTS = 1323 FS = 32 kH - DTs = 960 k = INT (TLO/DTs) mod 100 (12) RF = k mod 33 + 33 INT (k/99) (13) RS= 3 lNT(TLO/lOODTs) mod 201 + lNT(k/33) - INT
17、(kl99) (14) RM= INT(TL0/2000 DTs) mod 60 (15) RH = INT(TLO/120000 DTS) (1 6) 3) Conversion from Pro R Time to TLO (32-bit binary code) TLO = 120000RH + 2000RM + 33RS + iNT(RS/3) + RF x DTs + Sample No. (17) CENELEC EN*bLLL9-5 95 3404583 0355854 OLT The 32-bit binary code TB transmitted in this DIO b
18、lock corresponds to the audio sample of this frame The 32-bit binary code that corresponds to the audio sample of this trame is TLO DIO block (192 frames) 4 Page 13 EN 61119-5 : 1995 Sampling clock Beginning of DAT frame 9 DAT audio sample . Pro DIO frame Beginning of DIO block observed at the begin
19、ning of DAT frame IEC 53 RH: RM:S: RF Pro DIO block OAT frame 12.3.4.2 Pro binary pack Pack item = i000: Pro Binary Binary groups and assigned/unassigned bits of IEC 461 and/or the non-time information of Pro DIO channel status is recorded in this pack. The non-time information of Pro DIO channel st
20、atus is the data without the two kinds of 32-bit binary code in the channel status data of the DIO block, as observed at the begin- ning of DAT frame. Subdata field SPII, SPI0 is subpack item for pack data identification. CENELEC EN*bLLL9-5 95 3404583 015585b 992 SPI 1 O O Page 15 EN 61119-5 : 1995
21、SPI0 Contents O Binary groups of IEC 461 1 Byte O to 5 of Pro DIO channel status 1 1 O Alphanumerical channel origin data (byte 6 to 9) of Pro DIO channel status Alphanumerical channel destination data (byte 10 to 13) of Pro DIO channel status 1 a) SPI1, SPI0 = 00: Binary groups and assignedhnassign
22、ed bits of IEC 461. This item consists of binary groups and assignedhnassigned bits. PC6 PC7 PC8 Sixth binary group I Fifth binary group I Fourth binary group Second binary group Third binary group First binary group Pack parity 525t60 TB5 to TBO are assigned/unassigned bits of IEC 461. 6 25/50 Bit
23、1 No. Unassigned bit Binary group flag bit TB3 I 43 Unassigned bit Binary group flag bit TB2 I 27 Phase correction bit Colour frame flag TB1 I 11 Binary group flag bit Colour lock flag TBO I 10 Binary group flag bit I Phase correction bit Drop frame flag 1, Unassigned bit Eight binary groups of IEC
24、461 are recorded in PC4 to PC7. When the binary groups and assigned/unassigned bits of IEC 461 are recorded for a given DAT frame, Pro binary groups relating to the frame shall be recorded at least one time on both tracks. Page 16 EN 61119-5 : 1995 PC 1 PC2 PC3 b) SPI1, SPIO = O1 : Channel status ID
25、 of Pro DIO channel status. This item carries byte O to byte 5 of Pro DIO channel status. 87 B6 B5 84 83 82 B1 Bo 1 O o O O O O 1 a b C d e f I g PC4 h I i I pc5 I i PC6 PC7 PC8 byte 4 byte 5 Pack parity Contents of subdata are as follows: PC2 87 to BO : channel status data block byte O PC3 87 to BO
26、 : channel status data block byte 1 PC4 87 to BO : channel status data block byte 2 PC5 87 to BO : channel status data block byte 3 PC6 87 to BO : channel status data block byte 4 PC7 87 to BO : channel status data block byte 5 PC7 PC8 c) SPI1, SPIO = 1 O: Alphanumerical channel origin data of Pro D
27、IO channel status. Pack parity This item carries alphanumerical channel origin data (byte 6 to byte 9) of Pro DIO channel status. I pc4 I H I I pc6 I Alphanumerical channel origin data m I Page 17 EN 61119-5 : 1995 PC 1 PC2 PC3 Contents of subdata are as follows: PC4 87 to BO : channel status data b
28、lock byte 6 PC5 87 to BO : channel status data block byte 7 PC6 87 to BO : channel status data block byte 8 PC7 B7 to BO : channel status data block byte 9 PC2 87 to BO, PC3 i37 to BO are all zeros until defined. e7 e6 e5 B4 B3 e2 e1 Bo 1 O O O 0 0 1 1 O O O O 0 0 0 0 Reliability flags d) SPI1, SPI0
29、 = 11: Alphanumerical channel destination data of Pro DIO channel status. This item carries alphanumerical channel destination data (byte 10 to byte 13) and reliability flags (byte 22) of Pro DIO channel status. PC4 PCS PC6 PC7 PC8 Alphanumerical channel destination data Pack parity Contents of subd
30、ata are as follows: PC3 87 to BO : channel status data block byte 22 PC4 87 to BO : channel status data block byte 10 PC5 B7 to BO : channel status data block byte 11 PC6 87 to BO : channel status data block byte 12 PC7 87 to BO : channel status data block byte 13 PC2 87 to BO are all zeros until de
31、fined. 12.3.4.3 Under considerat ion. Alignment of Pro DAT time and control code to audio signal 12.4 Subcode in main data Not defined for professional application. 12.5 Not defined for professional application. Application rules of subcode for pre-recorded tape CENELEC EN*b3339-5 95 m 3404583 03558
32、59 bT1 W Page 18 EN 61119-5 : 1995 Annex A (informative) Advice for the professional applications of OAT To ensure a high-quality programme exchange that depends on track pattern accuracy, careful consideration should be given to the tolerances. CENELEC ENEbLLL9-5 95 3404583 0355860 313 = Page 19 EN
33、 61119-5 : 1995 Annex ZA (normative) Other international publications quoted in this standard with the references of the relevant European publications This European Standard incorporates by dated or undated reference, provisions from other publications. These normative references are cited at the a
34、ppropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references, the latest edition of the p
35、ublication referred to applies. NOTE. When the international publication has been modified by CENELEC common modications, indicated by (mod), the relevant EN/IID applies. IEC publication Date Title EN/HD Date 46 1 1986 Tirne and control code for vi Fax: 0181 996 7001. In response to orders for inter
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