TC Electronic Studio Konnekt 48 - Manual (Page 18)

6+7 Clock Recovery and Status
If the Clock Recovery function is disabled the following
status indications can be given:
INTERNAl LOCK
Indicates that the system is locked to the master
Studio Konnekt 48 unit.
EXTERNAL LOCK
Indicates that the system is locked to an external
digital device connected to the master Studio Konnekt
48’s digital inputs.
NO REFERENCE
External sync on the master Studio Konnekt 48 is
unobtainable. Check connections and external
devices.
Studio Konnekt 48 features unique clock handling via the
DICE II
TM chip from TC Applied Technologies.
The technology allows for various handling methods of
lost or unstable external clock, ensuring a continued
workflow with no audio dropouts even in critical
situations.
With Clock Recovery enabled the following status
indications can be given:
AUTO COAST, NO REFERENCE
External reference sync is lost. E.g. reference device
has been shut-down, cable has been removed etc.
In this situation Studio Konnekt 48 will "auto coast"
and immediately shift to the latest received valid
clock.
AUTO COAST, BAD REFERENCE
This message appears when receiving a bad reference
sync source. This would occur if the external device
delivers an invalid reference clock outside the
acceptable range of (+/- 1.5%) - or after Studio
Konnekt 48 has been in AUTO COAST, NO
REFERENCE mode and a new invalid reference clock
is received. In this situation Studio Konnekt 48 will
"auto coast" and immediately shift to the latest
received valid clock rate.
AUTO INTERNAL, NO REFERENCE
This message appears when a valid external reference
sync source has not been received. Maybe the
reference device has not been turned on, cable
removed etc.
In this situation Studio Konnekt 48 will go to "auto
internal" and use the internal clock as this is the best
solution under the given circumstances.
AUTO INTERNAL, BAD REFERENCE
This message appears when a valid reference sync is
never received. This situation occurs when the
reference device only has delivered an invalid
reference clock outside the acceptable range (+/-
1.5%) - or after having been in AUTO INTERNAL or
NO REFERENCE and attaching a new invalid
reference clock is attached.
In this situation Studio Konnekt 48 will go to "auto
internal" and use the internal clock as this is the best
solution under the given circumstances.
8 Check for update
If your computer has internet access you can allow TC
Near to connect to www.tcelectronic.com and check
for relevant software updates. Press “CHECK FOR
UPDATE”.
receives information about the sample rate it still
provides the actual digital clock.
Prevent from changing sample rate
When any application in your system, operating systems
alert sounds, Itunes etc. play a sound it will in most
cases try to set the sample rate of your sound
card/Konnekt. If you are trying to make music, this is not
what you want. To prevent these interruptions we have
therefore made the following options available.
WDM:
With this option selected, your DAW project (e.g. Cubase
LE4) sets the current sample rate and no Windows alert
sounds or media-players will accidentally change the
sample rate.
WDM+ASIO:
With this option selected, the sample rate is set solely in
the TC Near Control Panel (see previous page).
NONE:
With this option selected, any application, Windows
sound, DAW project etc. is allowed to change the current
sample rate.
DPC Safety Buffers
Numerous things in a computer system may cause DPC
spikes. Spikes, that momentarily may cause your
application (Itunes, Cubase etc.) to stop playing.
Therefore it is possible to set a safety buffer level
preventing these spikes.
Select between:
Normal
Level 1
Level 2
Level 3
Use only as high a buffer level as necessary as the system
latency increases with the buffer level.
SYSTEM SETTINGS SYSTEM SETTINGS
33 32
Again we have to stress that not only does Studio
Konnekt 48 provide a high quality clock but it also
facilitates excellent jitter-elimination that will clean up a
less than perfect digital signal from an external source
such as a CD player.
• The CD player is connected to “SK48 No1” via Tos-
link (optical S/PDIF).
• “SK48 No1” is selected as Clock Master on the
System Settings page and Sync Source is set to
Optical S/PDIF.
• The R4000 is connected to the other Konnekt in the
setup (SK48 No2) and it is set to slave to “S/PDIF
1/2”.
5 Sample Rate
If Sync Source is set to “Internal”, the sample rate
must be set. The options are:
44.1 kHz
48 kHz
88.2 kHz
96 kHz
176.4 kHz
(mixer not available)
192 kHz (mixer not available)
Typically the sample rate is set by your host
application. If you e.g. play a 44.1 kHz project the
sample rate automatically shifts to 44.1 kHz. If you
later load and play a 48 kHz song, the sample rate
shifts to 48 kHz.
Please note that even though Studio Konnekt 48