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SIGNAL/RTS APPLICATION NOTES

2 Application Note 10

performance of representative analog and DAT recorders and transfer components.

Throughout this note, "RTS" refers to both the RTS and RTSD software programs.

Required Hardware and Software

Digital sound data is commonly transferred into and out of a DAT recorder via one of several

interface standards. AES/EBU is the standard for professional audio, and normally uses 3-

pin XLR connectors. IEC 958 is also known as S/PDIF (SONY/Philips Digital Interchange

Format), and is the consumer standard. S/PDIF normally uses an electrical connection

involving RCA phono connectors, but may also use an optical connection.

Digital transfer between a DAT recorder and computer involves connecting the recorder to

the computer through a S/PDIF interface board, and requires the following components:

• DAT recorder with a S/PDIF interface

• S/PDIF digital interface PC-board

• Software for handling the digital transfer

• [optional] Sound card for listening to the transferred sound files

• [optional] Software for altering sound file sample rate

DAT Recorders

Many DAT recorders include a S/PDIF interface. Examples include professional machines

such as the Panasonic SV-3800 and SONY PCM-R500, and portables such as the SONY

TCD-D10. The S/PDIF interface is sometimes referred to as "COAXIAL" in DAT recorder

product descriptions.

S/PDIF Interface Boards

The S/PDIF digital interface board (referred to here as the DIO board) converts digital data

between a serial bit stream in the S/PDIF format and a sequence of digital words on the

computer bus. One S/PDIF board that is widely used is the "Card-D/Digital only", model

DO-01, manufactured by Digital Audio Labs, Plymouth, MN (612-559-9098,

www.digitalaudio.com). The Card-D is an ISA board, and costs about $350. It can handle

either of the two standard DAT sample rates, 44.1 KHz or 48 KHz. Note: Apparently when

used with one of the more recent OEM versions of Windows 95/98 (the "OSR2" release), the

Card-D requires an older driver (V1.30) than the one shipped with the board (either V1.31 or

V1.40), which is available from the manufacturer's website.

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Engineering Design NIDisk Betriebsanweisung Seite 18