Duplicating Smpte Time Code; Other Tips For Using Smpte; Example Smpte Connection - E-Mu 1212M Owner's Manual

Duplicating SMPTE time code

The Sync Daughter Card always generates clean SMPTE from the SMPTE output when
reading SMPTE in. This time code is in sync with the incoming SMPTE and can be used
to feed other devices in your studio or to clean up old SMPTE tracks. Copying SMPTE
code from track to track produces deterioration of the signal with each generation,
although one generation of dubbing will probably be OK.

Other Tips for using SMPTE

Use ascending time code. Jumps in the code are OK as long as the SMPTE code
1.
jumps forward in time as the tape moves forward in time. A good way to avoid any
problems with this is to simply stripe the entire project with SMPTE before you
record any other tracks.
Allow enough leader. Leave a few seconds between each song to allow SMPTE to
2.
sync up before the song starts.
Keep written logs. Keeping written records of song start points and edit cues can save
time and avoid wasteful searching through a project that was recorded earlier.

Example SMPTE Connection

In the diagram below, Cubase is controlling the entire system by sending MTC to the
Sync Card which converts MTC to SMPTE. SMPTE is fed to the ADAT/BRC to convey the
absolute time information (hours-minutes-seconds-frames). ADAT/BRC is the word
clock master, controlling the Digital Audio System either through the embedded clock
in the ADAT optical stream or using word clock.
1010 SYNC
CARD
CARD
ADOCK
ADAT
In
PatchMix DSP set to
ADAT Sync
ADAT Optical
carries embedded
word clock
The Sync Card should not be used as both the SMPTE and word clock master. Word
Clock is generated by the Digital Audio System and NOT by the software application
(Cubase). SMPTE is not locked to Word Clock inside the Sync Card—they are
completely independent.
E-MU 1820M/1820/1212M PCI Digital Audio System
BRC
RECORD
INPUT
optional
1 2 3 4 5 6 7
33 34 35 36 37 38 39
65 66 67 68 69 70 71
if ADAT 97 98 99 100 101 102 103
RECORD
INPUT
sync isn't
9 10 11 12 13 14 15
41 42 43 44 45 46 47
73 74 75 76 77 78 79
105 106 107 108 109 110 111
used
RECORD
INPUT
17 18 19 20 21 22 23
49 50 51 52 53 54 55
81 82 83 84 85 86 87
113 114 115 116 117 118 119
RECORD
INPUT
25 26 27 28 29 30 31
57 58 59 60 61 62 63
89 90 91 92 93 94 95
121 122 123 124 125 126 127
LTC
TRACK 1-32 TRACK 33-64 TRACK 65-96 TRACK 97-128
AUTO INPUT ALL SAFE ALL INPUT ALL CLEAR
GROUP 1 GROUP 2 GROUP 3 GROUP 4 SET GROUP
ADAT
Cubase
M A S T E R R E M O T E C O N T R O L
PITCH CONTROL TAPE LOCATION DISPLAY TYPE
NORMAL
CENTS HOURS MINUTES SECONDS FRAMES
SMPTE
PITCH UP BARS
8 DISPLAY MODE RESET 0 FORMAT TAPE
BARS BEATS SUB BEATS ABSOLUTE
PITCH MODE
40 RELATIVEE
PITCH DOWN
72
FIXED VARIABLE
104 DROP FRAME
SMPTE START
30 FPS
PITCH MODE SMPTE OFFSET
29.97 FPS
SMPTE IN MIDI IN
25 FPS
24 FPS
COPY TAPE
16
NAME LOCATION
48
CURSOR
80
112
MIDI UTIL TEMPO MAP R ECORD XFADE AUTO-PUNCH PRE-ROLL POST-ROLL
7 8 0
STUV WXYZ (CHARS)
24
56 SAVE SETUP
COPY SONG DELETE SONG LOOP TAPE OFFSETTRACK DELAY
TO TAPE
88 4 5 6
JKL MNO PQR
120
LOAD SETUP
SET LOCATE LOCATE SONG DIGITAL I/O GEN SYNC EDIT
FROM TAPE 1 2 3
ABC DEF GHI
32
64
96
128
AUTO PLAY REHEARSE
LOCATE 0
SET LOCATE
R E W I N D FAST FORWA RD STOP P L A Y RECORD
LOCATE
ADAT 9-pin
REWIND FAST FWD STOP PLAY RECORD
SMPTE Background
EJECT
EXT SYNC
EJECT
7 - Appendix
121