Tascam IF-AE8 Application example, Bword Sync Out, Cword Sync Thru, 44.1P, Mastering system

IF-AE8 Digital Audio Converter

BWORD SYNC OUT

This BNC connector outputs a word clock based on the word clock source selected using the CLOCK switch 3.

NOTE

This may or may not be the same as the clock received at WORD SYNC IN A and retrans- mitted through WORD SYNC THRU C. How- ever, it is always the word clock selected using the CLOCK switch 3.

CWORD SYNC THRU

This BNC connector echoes the word clock signal received at WORD SYNC IN A. It may or may not be the same signal as is output at WORD SYNC OUT B. It is auto-terminating.

3 Application example

In this example, the original material (from two sources) has been mixed to DAT, and has been pro- duced in both professional and consumer formats, and at both 44.1 kHz and 48 kHz sample rates.

The final master data will be recorded and coded on a computer-based system, with an AES/EBU interface.

DAT 1	AES/EBU audio in 44.1 (P)*
		48 (C)
DAT 2			IF-AE8
			44.1(P)

Mastering

system

Here, the two DAT recorders are fed through the IF-AE8. Since the resulting data will be at 44.1 kHz, the DAT playing back the material at 44.1 kHz (DAT 1) is selected to act as the clock master.

Since the TDIF-1 I/O is not used here, the DIGITAL OUT switch 4 is set to DIGITAL IN.

The word clock is therefore derived from this, and used to resample the 48 kHz material from DAT 2, and the Fs RATE CONVERT switch 6 is set to

CONVERT.

The mastering system takes its word clock through the AES/EBU data from the appropriate DIGITAL OUT of the IF-AE8.

The DIGITAL OUT FORMAT switch 5 is set to PRO, so that the data coming from DAT 2 is con- verted to professional format data.

4	Specifications
DIGITAL OUTPUTs (1–2,		XLR-type, balanced outputs
3–4, 5–6, 7–8)
DIGITAL OUTPUT output		Switchable between
format		professional (AES3-1992)
		and consumer (IEC-60958
		TYPE II) formats
DIGITAL INPUTS (1–2, 3–4,		XLR-type
5–6, 7–8)
DIGITAL INPUT input format		Auto-detect professional
		(AES3-1992) and consumer
		(IEC-60958 TYPE II) formats
D IGITAL I/O (TDIF-1)		Conforms to TDIF-1
		specification
Clock source		Any of AES/EBU DIGITAL
		INPUTS, TDIF-1, or WORD
		SYNC IN (front panel
		selection)
LOCKED indicator		Lights when valid clock
		source received at selected
		input
Valid input Fs rates		48 kHz, 44.1 kHz, 32 kHz
Valid output rates		48 kHz, 44.1 kHz, 32 kHz,
		taken from CLOCK source
Word length		Up to 24 bits TDIF-1,(20 bits
		with Fs conversion), 20 bits
		AES3-1992
WORD SYNC IN		75Ω
WORD SYNC OUT		75Ω, reproduces clock
		selected from front panel
		switch
WORD SYNC THRU		75Ω (auto terminating),
		echoes clock at WORD
		SYNC IN
Dimensions (w x h x d)		428 x 48 x 194.8 (mm)
		16.9 x 1.9 x 7.7 (in.)
Weight		2.6 kg (5.7 lbs)
Power supply		120V (UL), 230V (Europe,
		Australia)
Power consumption		6 W
Supplied accessories		Rack mounting kit

6 TASCAM IF-AE8