MyTek Stereo 192SRC Manual de usuario
Mytek Stereo 192 Sample Rate Converter – User Manual
Stereo 192 Sample Rate Converter
User Manual
ver. 1.2 / May 2011
© Mytek Digital 2011
www.mytekdigital.com Page 1 / 12
Mytek Stereo 192 Sample Rate Converter – User Manual
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or contact Mytek tech support at
or at
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fax. (212) 202-5331
Mytek Digital
148 India St. FL 1
Brooklyn, NY 11222
USA
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Mytek Stereo 192 Sample Rate Converter – User Manual
Content
Introduction..................................................................................4
Quick Start....................................................................................5
Front Panel....................................................................................6
Back Panel.....................................................................................7
Functions.......................................................................................7
Frequency Selections...................................................................8
Mode Selections..........................................................................10
rror Messages...........................................................................10
Important Safety Instructions...................................................11
www.mytekdigital.com Page 3/12
Mytek Stereo 192 Sample Rate Converter – User Manual
Introduction
The Mytek Stereo 192 Sample Rate Converter is a hardware
SRC that is capable of synchronous and asynchronous
operation. It can convert between any frequency between
32,000 Hz and 192,000 Hz with 1 Hz accuracy.
The Stereo 192 SRC accepts A S/ BU, S/PDIF, and Toslink
input, and has A S/ BU and S/PDIF (coax only) output. There
are also Wordclock In and Out connections.
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Mytek Stereo 192 Sample Rate Converter – User Manual
Quick Start
1. Connect Digital Input and Output
Connect the output of your digital device to an input on the SRC.
Select this input on the front panel with the “IN” button. A solid
LED will tell you that the source is valid. Connect the digital output
of the SRC to the digital receiving device.
2. Operation
You can choose to display either the input frequency or the
output frequency by pressing the “F-DISP” button. The unit
will convert the signal once a valid input and frequency is
selected.
3. Configuration
Using the “SEL” and “ P” buttons will allow you to cycle
through and select the various frequency options. Holding
down the “SEL” button until the first digit on the display
flashes will let you define a custom frequency with the “ P”
button to change the value and the “SEL” button to select the
next digit. Push “SEL” after the last digit to confirm your
value.
The “MODE” button cycles between Synchronous (SNC),
Asynchronous – Internal Crystal (ASNC-XTL), and
Asynchronous – xternal Wordclock (ASNC-WCK).
The “O TP T WORD LENGTH” button will select between
24, 20, or 16 bits output format. TPDF dithering is applied to
20 and 16 bits.
For user defined
frequencies less than
100,000 the left most digit
will be blank but it is still
cycled through with the
“S L” button. The value
set won't be confirmed
until you push the “S L”
button after the last digit.
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Mytek Stereo 192 Sample Rate Converter – User Manual
Front Panel
A – Input selector button
B – Input status L D
C – L D Display
D – Frequency display selector button
– Frequency display status L D
F – Select button
G – Up button
H – Mode selector button
I – Mode status L D
J – Output word length selector button
K – Output word length status L D
L – L/R signal meter
M – On/Off switch
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ST R O192SRC AS YNCHRONOUS AND
SYNCHRONOUS SRC MYT K DIGITAL.USA
IN
A S
SPDIF
TOSLINK
F-DISP F- IN
F-O UT
S L UP MO D
1 9 2 0 0 0 SNC
ASNC-XTL
ASNC-WCK
OUTPUT
WO RD
L NGTH
16
20
24
0
-3
-20
-60
I
O
C
D GFAABA H IJ K L M
Mytek Stereo 192 Sample Rate Converter – User Manual
Back Panel
A – I C Power socket
B – Wordclock BNC Input
C – Wordclock BNC Output
D – A S/ BU XLR Input
– S/PDIF Coax Input
F – S/PDIF Optical Input (Toslink)
G – A S/ BU XLR Output
H – S/PDIF Coax Output
Functions
IN – You can select the active input by pressing this button.
The status L D will have a solid glow when there is a valid
incoming signal and it's frequency will be displayed when you
have F-IN selected as the F-DISP. If no signal is present the
L D will be blinking and “no In” will be displayed.
F-DISP – This selects whether the input or output frequency is
shown on the display.
SEL and P – These buttons allow you to cycle through the
various menu options, frequencies, and make selections.
MODE – This chooses whether you want the SRC to function
synchronously, asynchronously with internal crystal as the
clock source or asynchronously with external wordclock as the
clock source.
O TP T WORD LENGTH – This chooses between 24, 20,
and 16 bits as the word length.
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110/220VAC
SWITCH AND FUS INSID
WCK
IN
WCK
OUT
D SIGN D IN USA
A S IN
SPDIF
IN TOSLINK IN
A S OUT
SPDIF
OUT
AC
B
G
H
F
D
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Mytek Stereo 192 Sample Rate Converter – User Manual
Frequency Selections
There are 3 modes of frequency selection:
Quick – pressing the P button will cycle between
•44100 Hz
•48000 Hz
•88200 Hz
•96000 Hz
•176400 Hz
•192000 Hz
•last user defined entry
Additional Predefined – pressing SEL will bring up the
available frequency subgroups. P will cycle between:
•STD (standard)
•P. down (pull down)
•P. up (pull up)
Pressing SEL will select the subgroup. Now use P to cycle
between the following choices:
•STD
◦44100 Hz
◦48000 Hz
◦88200 Hz
◦96000 Hz
◦176400 Hz
◦192000 Hz
•P. down
◦42336 Hz
◦44056 Hz
◦46080 Hz
◦47952 Hz
www.mytekdigital.com Page 8/12
Mytek Stereo 192 Sample Rate Converter – User Manual
•P. up
◦44144 Hz
◦45937 Hz
◦48048 Hz
◦50000 Hz
Once the desired frequency is selected push SEL to confirm.
Custom Value – hold down SEL until the first digit starts
flashing. Press P to set the desired digit value. Press SEL to
confirm the value and move on to the next digit. After the
most significant digit is set the unit is now ready for
operation.
The minimum frequency that can be set is 32000 Hz. The
maximum is 192000 Hz.
Upon selection of the frequency the display will adjust to the
selected value once the PLL is locked to the frequency.
For user defined
frequencies less than
100,000 the left most digit
will be blank but it is still
cycled through with the
“S L” button. The value
set won't be confirmed
until you push the “S L”
button after the last digit.
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Mytek Stereo 192 Sample Rate Converter – User Manual
Mode Selections
The Stereo 192 SRC is capable of synchronous or
asynchronous operation.
Synchronous operation means that the output clock is locked
to and following the input clock, even if it's a different
frequency. This mode should be used when the actual length
in time of the output sound clip has to be exactly the same
(+/- 1 sample) as the original. Generally this mode should be
used for any digital to digital transfers such as the output
being re-recorded digitally.
Asynchronous operation means that the output clock is
independent (not synchronized) from the input clock. This
would be used when up-sampling a signal to be converted by
a DA converter for example. It can be set to use the ultra-low
jitter clock from the internal quartz oscillator or it can use
external wordclock.
When synched to external wordclock the frequency is set by
the incoming clock signal. You will not be able to change the
frequency on the front panel.
Error Messages
no in – his is displayed when a valid input is not present.
no out – his is displayed if you are in ASNC-WCK mode and
there is no external clock source present.
If the digital source has a
jittery clock then using
synchronous mode will
retain some of that jitter.
Asynchronous mode does
not carry over jitter.
www.mytekdigital.com Page 10/12
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