7 - Appendix

Useful Information

Useful Information

AES/EBU to S/PDIF Cable Adapter

This simple adapter cable allows you to receive AES/EBU digital audio via the S/PDIF input on the E-MU 1010 PCI card. This cable may also work to connect S/PDIF out from the 1010 PCI card to the AES/EBU input of other digital equipment.

From AES/EBU

Device

 

2 +

To S/PDIF

1

In

N.C.

3

-

Cables - balanced or unbalanced?

All inputs and outputs on the E-MU Digital Audio System are designed to use either balanced or unbalanced cables. Balanced signals provide an additional +6dB of gain on the inputs and are recommended for best audio performance, although unbalanced cables are fine for most applications. If you’re having problems with hum and noise or just want the best possible performance, use balanced cables.

Balanced Cables

Balanced cables are used in professional studios because they cancel out noise and interference. Connector plugs used on balanced cables are XLR (3-prong mic connector) or TRS (Tip, Ring, Sleeve) 1/4" phone plugs.

WARNING: Do NOT use balanced audio cables when connecting balanced outputs to unbalanced inputs. Doing so can increase noise level and introduce

Balanced XLR

2 1

1 2

Connectors

3

3

Input Output

Balanced 1/4”

TRS Connectors

Unbalanced 1/4”

Connectors

1 = Ground/shield

2 = Hot (+)

3 = Cold (-)

Sleeve = Ground

Tip = Hot (+)

Ring = Cold (-)

Sleeve = Ground

Tip = Signal

hum. Use balanced (3-conductor) cables ONLY if you are connecting balanced inputs to balanced outputs.

Balanced cables have one ground (shield) connection and two signal-carrying conductors of equal potential but opposite polarity. There is one “hot” or positive lead, and a “cold” or negative lead. At any point in time, both conductors are equal in voltage but opposite in polarity. Both leads may pick up interference, but because it is present both in and out of phase, this interference cancels out at the balanced input connection.

E-MU Digital Audio System

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