Meridian America Digital Audio Processor Meridian 518 - Manual (Page 40)

Additional technical information 40
518 User Guide
the dynamic range of the signal itself. A typical application may be a full-
range DSP volume control, where e.g. a 16 bit input is modified by a gain
control function and passed out to a DAC of 18 or 20 bits. In these cases:
•
If the programme material permits, use pre-emphasis
•
Use Shape A or high-pass dither.
Additional technical information
Specification
Inputs 3 cable and one TOSLINK optical.
Digital serial interface to AES/EBU or SPDIF
2 channels up to 24 significant bits
Outputs Digital serial interface to AES/EBU or SPDIF
2 channels up to 24 significant bits.
Sampling Frequency 32kHz – 48kHz.
Twin PLL Second phase-lock loop minimises jitter at
44.1kHz to approx. 3pS rms.
Input word selection 16, 18, 20, 22, 24 bits
Output word selection 16, 18, 20, 22, 24 bits
Channel status Output selectable professional or consumer
Dither options Additive white spectrum TPDF
Additive high-pass spectrum TPDF
Noise shapers 5 specific types offered, optimised for each
sampling frequency, with and without pre-
emphasis and for MAF and MAP hearing
thresholds.
Processing Gain control in 1dB steps from +12 to –99dB
Digital-domain pre-emphasis
Digital-domain de-emphasis
Accuracy 72 bit internal precision
Display Gain, processing mode, dither, incoming
emphasis, clipping.
Digital Subcode Channel status only
Controls Source, Display, DSP, Dither, In, Out, Gain
Dimensions 325 x 100 x 320mm, (12.9 x 3.9 x 12.6")
Weight 5 kg (10 lb.)