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6. Appendix

The DI-Mod 24/96 AES/EBU Digital Interface Option

The DI-Mod 24/96 AES/EBU expands the DTC™ with a digital output and input in 24-bit

format with sampling rates of 44.1, 48, and 96 kHz and a dynamic range of over 113 dB.

It is the logical extension of the analog DTC™, optimally converting its output signal to

digital, and helping your DTC™ fit into your digital studio environment seamlessly.

INFO

The available digital connections are optical S/P-DIF

Toslink , S/P-DIF coax and AES/EBU on XLR. The

digital input can automatically sync itself to the clock

of an external unit.

HELPFUL HINT

A special feature of the DI-Mod’s digital clock is the

Auto/Master function. In Master mode the DI-Mod

serves as a master clock with whichever sampling

frequency you have chosen, irrespective of the

frequency of the signal coming in at the digital input.

The AD converter operates independently of the DA

converter, making it possible, for example, for the

DTC™ to process incoming recordings at 44.1 kHz

while generating 96 kHz output, or the other way

around, taking material that was recorded at 96 kHz,

processing it for mastering, and converting it to the

right sampling rate to prepare a CD pressing, all at

the same time.

Excerpt from the DI-Mod

24/96 AES/EBU test protocol

The tests were run with a Rhode & Schwarz UPL

Audio Analyzer. The AES/EBU expansion was used as

the digital inputs and outputs. For the sake of easy

comparison, the middle sampling rate of 48 kHz

was chosen.

Frequency response of the AD at 48 kHz in Master Mode:

Signal-to-Noise of the AD at 48 kHz in Master Mode: Signal-to-Noise of the AD at 48 kHz in Slave Mode:

THD+N of the AD at 48 kHz: THD of the AD at 48 kHz:

1 2 ... 12 13 14 15 16 17 18 19 20 21 22 ... 39 40

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