OTARI FS-96 Operation Manual Download Page 19

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List of Reference Clock Signals:

The following signals can

be used as the reference clock signal.

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INT:

selects the internal clock signal of the FS-96. The

frequency of the signal can be selected from the following 6
options — 32, 44 (44.1), 48, 64, 88 (88.2), 96 kHz.

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WORD:

selects the external Word Clock signal supplied to the

WORD IN connector. The frequency of the signal varies with
the setting of the external device.

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INPUT:

selects the Word Clock signal extracted from the

input audio signals. If the input audio signals consist of
multiple groups, you can select which group is used
(AES/EBU = INPUT 1/2 – 23/24 ch, ADAT & TDIF (including
Bi-Direction mode) = GROUP A – C).

NOTE:

The output audio signals will be synchronized to the

reference clock signal with phase-level accuracy.

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Indication of Reference Clock and Sample Rate:

The

selection of the reference clock signal and the sample rate of the
output audio will be displayed by the Reference Clock and
Sample Rate indicators on the front panel.

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Reference Clock Indicators:

The selection of the reference

clock signal is displayed by the Reference Clock indicators —
INT (internal clock signal), EXT (external Word Clock signal),
and INPUT (input audio signal). If no signal is present or no
synchronization is achieved for the input signal, the indicator
will flash.

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Sample Rate Indicators:

Each of the indicators will illuminate

when the frequency of the output signal is within a range of ±1
% of the labeled frequencies. If the signal is 64 kHz, both the
32 kHz and 44.1 kHz indicators are lit. Also, if the signal is
88.2 kHz, both the 44.1 kHz and 48 kHz indicators are lit.

96kHz

48kHz

44.1kHz

32kHz

INT

EXT

INPUT

October 2000

Setup Mode

Selecting Reference Clock (Continued)

Configuring Sample Rate Converter

According to the accuracy of the devices, there are slight
fluctuations or jitters in the sample rates of digital audio signals.
The FS-96 is equipped with an accurate clock generation circuit
and the input audio signals can be converted to accurate signals
by passing through the sample rate converter.

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Using Sample Rate Converter:

Activation of the sample rate

converter should be determined by the settings of input format
and reference clock signal. If the audio signals are to be
converted to a different sample rate, you must turn on the
sample rate converter to obtain proper audio outputs. If the
output signals is to be synchronized to the input signals (or the
external Word Clock signal which is synchronized to the input
signals), the sample rate converters are not necessary. However,
we recommend to activate the sample rate converters all the
time.

If the sample rate of the input audio is different
from the frequency of the reference clock
signal, please be sure to activate the sample
rate converter. If the sample rate converter is
turned off, annoying noise may appear on the
audio signals.

NOTE:

Status of the sample rate converter is displayed on the

SRC indicator on the front panel.

Press the

SETUP

key to place the FS-96 in Setup mode

and select the

SAMPLE RATE CONVERT

screen by

pressing the upper & lower Arrow keys.

The current status of the sample rate converter is displayed
on the screen.

Press the