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85
The H8000FW family’s digital inputs AES1-4 (and AES5-8 on the H8000FW) incorporate
optional sample rate conversion, where new digital values are “made up” to fill in the gaps
caused by a difference in sample rates.
Using the Internal Clock
When you use the "internal" clock, the
system
sampling rate
will be that of the internal clock.
Unless sample rate conversion is on ("bottom"
page under
clock
in the
SETUP
area),
slipping
will occur on any digital inputs unless they
are externally locked to one of the H8000FW's digital outputs. The ADAT (and AES11-
18 and FireWire on the H8000FW) inputs have no sample rate conversion and thus
cannot be used with an internal clock unless the external unit is synchronized to the
H8000FW's digital outputs.
→
See
The Status of The Digital Inputs When Using the Internal Clock
on page 86.
Selecting the Internal Clock’s Rate
To select the internal clock, set the
Source
parameter on the
clock
menu page in the
SETUP
area to
Int 44.1 kHz
,
Int 48.0 kHz
,
Int 88.2 kHz
, or
Int 96.0 kHz
:
44.1 kHz
The rate of standard compact disks. The "44.1kHz sample rate indicator" is
illuminated. The highest reproducible audio frequency is ~20kHz.
48 kHz
The "professional" or "broadcast" rate
.
The highest reproducible audio
frequency is ~22kHz.
88.2 kHz
Twice the rate of standard compact disks. This raises the highest possible
reproducible audio frequency to ~40 kHz. The cost of these "20k +" overtones is a
reduction in the size of the programs the H8000FW can run. Some programs will be
"unloadable" when
88.2 kHz
is selected. Similarly, if one of these programs is loaded,
you will not be able to select
88.2 kHz
.
96 kHz
The current "professional rate," commonly used in DVD production. This
raises the highest possible reproducible audio frequency to around 44kHz. Some
programs will be "unloadable" when
96 kHz
is selected.
The
actual
value of the system sampling rate can
be read in the field that reads, "
Sample Rate:
xxxxx
." This will be accurate to the nearest Hz.
Of course, if you select one of the fixed rates
Summary of Contents for H8000FW
Page 6: ......
Page 140: ...134 Now the program has the new name new Voice ...
Page 183: ...177 Click Restart to restart your computer and conclude the installation ...
Page 186: ...180 The Sound options screen now displays ...
Page 195: ...189 ...