OPERATING INSTRUCTIONS FOR GAMBIT SFC2
INTRODUCTION
Daniel Weiss Engineering Ltd., Florastr. 42, CH-8610 Uster
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+41 1 940 20 06
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+41 1 940 22 14
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http://www.weiss.ch
INTRODUCTION
Congratulations on purchasing the Weiss Gambit Series SFC2 !
The main function of the SFC2 will be inte-
grating playback or outboard equipment into
an environment that either runs at double- or
standard-sampling frequency. To allow this
equipment to be positioned anywhere in the
processing chain, the SFC2 features two com-
pletely independent two-channel sampling fre-
quency converters, A & B, to simultaneously
down- and up-sample a signal. Alternatively, it
can also be used to convert the sample fre-
quency and reduce the wordlength of any two
arbitrary audio signals at the same time.
Standard sampling frequency converter chips
continuously measure the input frequency and
then generate the output frequency and the
filter specifications accordingly. This results in
coefficient "jitter" because the input signal
sampling frequency jitter modulates the cutoff
frequency of the digital filter. However, the
SFC2 uses a fixed-ratio scheme where the
output is directly derived from the input sam-
pling frequency - therefore no coefficient "jit-
ter", no filter modulation, more transparency.
Features
Auto detection and display of input sam-
pling frequency
Selection of output sampling frequency
with large, backlit push buttons
Supported input and output sampling fre-
quenncies:
44.1 / 48 / 88.2 / 96 kHz
Bit transparent for 1:1 conversions
24bit I/O on single wire AES/EBU inter-
faces
Noiseshaped dither for wordlength reduc-
tion of output signal to 16 or 20bit
Selectable autoblacking for dither – mutes
dither if no signal present.
40bit floating point digital signal processing