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Audison bit one Frequent Asked Questions

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question type question answer
Turning on/
Switching off
We have some problems with the Bit One turning on/switching off.
As indicated in the manual, Bit One could be activated or disactivated
pressing (for a few seconds) the DRC knob. Once the product is
switched off, if you press the DRC knob you can't turn it on again by
means of the DRC. To turn on the unit again by means of the DRC, it is
necessary to disconnect KEY MEM and KEY ON-OFF.
The DRC must be connected to the Bit One by means of the AC Link 1 (DRC) socket and not by means of the AC Link 2 (AMPS)
socket. Furthermore the KEY MEM and KEY SWITCH ON OFF must not be used at the same time and not even with the function
REMOTE IN
Loud "POP" sound when turning on/switching off The problem could be present on some pieces with the first software versions. In this case it is necessary to proceed with the
updating of the Bit One PC firmware and software, available on the web site: http://update.audison.eu
Using the remote input and output you can hear a loud noise (bump) in
the speakers switching off the source
To not hear the bump during the switching off of the source, the amplifiers must be switched off before the Bit One. The correct
sequence is:
1) The source is switched off disactivating the REM OUT output, that is connected with the BIT ONE REM IN.
2) The Bit One starts its switching off sequence disactivating its REM OUT. This makes the amplifier silent and it switches it off.
3) After 2 seconds the Bit One is switched off.
configuration Failing or mistake in the parameters finalization If during the Bit One regulation by means of the PC, the Bit One is switched off or turned on, the PC USB connection looses
sychronisim. If the Bit One switches off during the connection process with the PC it is necessary to disconnect from the PC
program and relaunch it to restore the comunication synchronism.
The Bit One doesn't work correctly once it is switched off and turned on
again.
If during the Bit One programming phase by means of the PC the product doesn't answer the controls, it is necessary to switch off
the Bit One switching off the source or the DRC. If, after this action, you can't switch off the Bit One it is necessary to disconnect
the power source and then reconnect it. Once the Bit One is switched off it is necessary to turn it on again and then redefine the
synchronism disconnecting and reconnecting the management program by means of the PC
Acting on the Master Volume and on the Subwoofer Level there is no
volume variation
Probably setting the I/O wizard configuration, some "set AC-LINK provided amplifier" flags have been set on the outputs. In this
way the Bit One analogic outputs volume always remain 0dB because the volume adjustment is committed to the amplifiers with
AC-LINK that the software considers connected after the processor once set the flag.
To restore the situation it is necessary to redo the setting procedure being careful that the "set AC-LINK provided amplifier" flags
aren't selected.
After selecting MUTE in the "DSP SETTING" CHANNEL MAP, if the
"EXT. SOURCE EQ" is selected, MUTE automatically disactivates and
the sound comes out.
MUTE is still selected, both in the CHANNEL MAP and in the "OUTPUT
LEVEL", but the sound continues to be present.
When MUTE is re-activated after disactivating it, the silence condition
operates correctly.
The problem can be temporarily over come disactivating and re-activating MUTE. The problem can be solved updating the
software and firmware available on the web site http://update.audison.eu . The modification is present from version 1.4 of the PC
management software.
Bii One has been correctly installed and configured by means of the I/O
configuration wizard and then disconnected from the PC and switched
off. After turning on again the Bit One, it doesn't work
Be careful: to not loose the configuration work done it is necessary to "finalize" it on the Bit One by means of the function "finalize
to Bit One" from the PC software File menu
FREQUENT ASKED QUESTIONS
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FREQUENT ASKED QUESTIONS
USB connection Anomalies when the USB cable is connected
Some portable PCs powered by means of their external power supply create a strong tension difference between the portable PC
USB ground and the Bit One USB ground: this could create temporary anomalies in the digital section of the Bit One. It is
necessary to make the portable PC work with its battery, keeping it disconnected from the network power supply at least when the
portable PC is connected to the Bit One by means of the USB. Once the connection is stable it is possible to connect the portable
PC by means of the power supply without creating problems.
DRC Difficulty in the passage between the DRC input selection screens. The
system blocks The problem could be present on some pieces with the first software versions. In this case it is necessary to proceed with the
updating of the Bit One PC firmware and software, available on the web site: http://update.audison.eu
functioning The unit presents noise from the cd transporter, noise between the
tracks and when you are in the Bit One Table of Contents The problem could be present on some pieces with the first software versions. In this case it is necessary to proceed with the
updating of the Bit One PC firmware and software, available on the web site: http://update.audison.eu
Problems with the reading of the input levels: the message "input too
low" appears The problem could be present on some pieces with the first software versions. In this case it is necessary to proceed with the
updating of the Bit One PC firmware and software, available on the web site: http://update.audison.eu
Sometimes the DRC switches off (the Bit One Audison logo remains
turned on). To turn it on again it is necessary to take off and put on the
power plug.
What indicated could happen with the first Bit One and could be caused by the optical digital input or coaxial even if it has been
selected with the unconnected and disactivated source. The problem could be eliminated updating the firmware and the
management software by means of the PCwith the ones you can find in the web site http://update.audison.eu.
Changing the input source, without connected cables and apart from the
source (Aux 1, Aux 2, digital ...),you can hear clamp disturb on the
outputs
The problem is due to Bit One muting and could be solved updating the firmware and the management software by means of the
PC, available on the web site http://update.audison.eu.
During the functioning phase it is possible to hear a light sound
distorsion. You can hear random noises when the Bit One elaborates a
wide spectrum signal with deep low bass: as the tails in high
frequency that come after the low frequency signal. This noise level is
very low but present apart from the type of speaker used and even
using a high pass filter. The noises are more present at lower
frequencies and they are present even after the updating of the unit
software.
The problem can be solved updating the firmware and the management software by means of the PC; available on the web site
http://update.audison.eu.
Why are there 3 remote inputs and only 1 remote output? The three Remote IN inputs are requested for the Bit One remote turn on using one or more signal sources. Instead, the Remote
Out function turns on in remote the units or amplifiers connected down to the processor. The three Remore IN inputs are
connected in parallel, so if even one source is present it is possible to use without exception each of the three inputs.
Using the Bit One in “Filter Linkwitz” mode, when selecting the cutting
slope [dB], you hear a ''puk' sound The problem could be solved updating the firmware and the management software by means of the PC, available on the web site
http://update.audison.eu.
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FREQUENT ASKED QUESTIONS
functioning
When using the Bit One Hi-level input, is it possible to use one filtered
signal (example 4" midrange)? In this case, can Bit One remake the
complete signal (20 hz - 20khz)? On some factory installed systems the
high level signal is filtered digitally from the source (for example in the
band 50-70 hz) and often the Sub channel isn't present. In this case it is
difficult to remake the signal for the Sub.
Bit One can mix the Hi Level filtered outputs that come from an OEM source. For example on a Bit One Hi Level input you can
connect the tweeter output and on another input the woofer output. During the set up phase, in the input configurations, it is
sufficient to indicate Front Tweeter and Front Woofer and automatically the Bit One mixes the two channels as Full Range Front.
This operation is possible even with a 3-way system, of course in this way you occupy 6 channels of the 8 available.
If the car OEM system has a cut Hi Pass for example 70 Hz, Bit One can't reproduce frequencies that don't exist on its input. It is
important to say that if the "de-equalize" function is used, if it is equalized or not, the Bit One internal Flattner permits a
realignment of 6 dB of the response curve. This means that in case the OEM source Hi Pass has 70 Hz - 12 dB/Oct, the Bit One
can bring the Hi Pass crossover frequency to 52.5 Hz. This frequency value permits easier Hi-pass crossover cuttings atr higher
frequrncies that are normally used to cross the section "Front" with the Subwoofer one in Car Audio systems. The function "de-
equalize" can be used even with the PRE (Lo Level) input. In this case, before
starting the "de-equalize", it is necessary to supply the signal on 6 PRE (Lo Level Inputs) inputs, during Bit One set up configuratio
n
it is necessary to "deceive it" selecting the Hi Level Inputs, avoiding to use channel 7 and 8.
The adjusting window of the volumes presents the indication of 0 - -40
db for channel 1 and 0 - -20 db for the remaining channels The problem can be solved updating the firmware and the management software by means of the PC; available on the web site
http://update.audison.eu.
The Bit One is connected to the digital source (optical or coaxial). The
system is turned on but the source is switched off or turned on for a
long time but not in reproduction: turning on the source or restoring the
reproduction there is no sound
This problem is due to the fact that some sources, during the turning on or restoring of the reproduction after a long time of
inactivity, presents an imperfect start of the digital signal S-PDIF: Bit One can't start the decoding of the signal and there is no
sound, in this case it is sufficient to change the source by means of the DRC and then return to the digital source.
installation In the product I can't find a fuse inserted on the PCB or included for
external connection: furthermore I can't find recommandations on a
recommanded value for an eventual external fuse.
On the first pieces produced, the fuse wasn't included and we were working on the possibility to insert an external fuse. On the
next production lots the fuse has been integrated on the PCB that can be replaced only by the assistance center. If you want to put
an external fuse for more safety the adviced value is 1 A (normal)
Once installed the system, carried out the guided procedure and
configuration, we synchronized the processor and finalized. Once
disconnected the USB cable from the PC we don't have Bit One output
signal.
The problem could be solved updating the firmware and the management software by means of the PC; available on the web site
http://update.audison.eu.
Additional
features use How must the KEY-MEM and KEY ON-OFF be used?
The Memory connection is linked to the turning on of the Bit One turning the vehicle key. It is very similar to the connection "KEY
ON-OFF'' to which it adds a "memory" feature. So, if the Bit One has already been switched off when the user turns off the vehicle
(for example by means of the DRC), the Bit One will not turn on at the next turning on of the vehicle. Instead, if the Bit One is on
when the user stops the vehicle and takes out the key, it willl turn on again when the vehicle will be turned on next time. The
contacts KEY ON-OFF and KEY-MEM exclude one another and they mustn't be used at the same time.
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