Digital Transfer Formats

The Music Telegraph | Text 2019/02/27 [12:11]

Digital Transfer Formats

The Music Telegraph| 입력 : 2019/02/27 [12:11]

Digital Transfer Formats

 

 

▲ S/PDIF cable (RCA)

© Canare Corp.

 

 

▲ S/PDIF cable (Toslink)

 

 

1. S/PDIF (Sony Philips Digital Interface Format)

- Transmitting digital audio between consumer digital audio devices (e.g. recorder, cd player) and professional counterparts (e.g. audio converter, digital mixer)

 

- Interface:

i) Coaxial (RCA: Unbalanced phono connector, Z=75Ω, V=.5v)

ii) Optical (Toslink)

 

- Channels:

2 CH (Interleaved L-R; L-R …)

 

- Resolution:

20 bit

24 bit (possible)

16 bit

 

- Sample Rate:

96k

 

 

 

 

 

▲ AES/EBU cable (XLR)

© Canare Corp.



2. AES/EBU (Audio Engineering Society/European Broadcasting Union)

 

Transmitting digital audio between “Professional” digital audio devices

 

- Low Z (110Ω) and 3~10v (AMP) ( Maximum cable length up to 328 ft with Sample Rate 50 kHz)

 

- Interface:

XLR cable (Balanced (3 pins: pin1—>signal ground, pin2,3—>carry signal data))

 

- Channels:

2 CH (Interleaved digital audio)

 

- Resolution:

16bit, 20bit, 24bit

 

- Sample Rate:

192k

 

 

 

 

 

▲ ADAT cable (Toslink)

© Yamaha Corp.



3. ADAT (Alesis Digital Audio Tape)

 

Transmitting digital audio between “Professional” digital audio devices

 

- Interface:

Toslink

 

- Channels:

8Ch

 

- Resolution:

16 bit

20 bit

 

- Sample Rate:

48k

 

 

*Although S/PDIF & ADAT have identical interface (Toslink), data streams are incompatible each other. Light pipe data is Not bi-directional (only travel from single source to a destination in one direction), so, 2 cables are needed (to & from). Sync cable needed since Sync data is not passed.

 

 

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