Two Notes VB-101 - Manual (Page 30)

Configuring and using TORPEDO VB-101
4.1 Audio
• Input Select: Select "AMP" if you are using an amplifier con-
nected to the TORPEDO VB-101, "Line Bal" or "Line Unbal" to
use the balanced or unbalanced line input, and "AES/EBU"
or "S/PDIF" to select the digital inputs. For the digital inputs,
where the signal is stereo, "L" (left) or "R" (right) indicates
which channel is being used.
• SGA: The Safe Gain Adjustment is an automatic gain-reduction functionality developed by Two
Notes Audio Engineering, which is designed to very quickly correct saturation problems resulting
from a wrong input gain or output volume setting. If some high level causes the input to saturate,
the SGA function will reduce the gain value until the saturation stops. In cases where the high-
level peak is not expected to occur again and the volume now seems too low, you will need
to manually turn up the gain as desired. The SGA can be activated at the input ("In") or the
output ("Out") stage, at both ("In/Out"), or be deactivated ("Off"). This function presents two
main advantages: adjusting the gain very quickly, and protecting a live installation against
volume variations leading to saturation during the show.
• Input Gain Mode: For maximum flexibility, the TORPEDO VB-101 input gain is saved with each
preset. However, it is sometimes useful to retain a unique input gain, regardless of what preset
is being used. The Input Gain Mode parameter lets you choose between those two behaviors.
When you load a preset, using the "Preset" mode will change the input gain and memorize its
value; using the "Global" mode will keep the input gain unique and not change it.
• Output mode: You can here choose to send either a processed (wet) or non-processed (dry)
signal to the analog and digital outputs. In "Stereo" mode, a wet signal is sent to both channels
(left and right). In "Dry/Wet" mode, a dry signal is sent to the left channel and a wet signal is sent
to the right channel. In "Wet/Dry" mode, a wet signal is sent to the left channel and a dry signal
is sent to the right channel. This function is useful for recording a dry signal for later re-miking
while monitoring (and/or recording) a processed signal.
• Latency Mode: In every digital audio system, there is a time delay between the input and
output sound. This time delay is generally called "latency", and it needs to be as low as possible:
above a certain value, which is different for every person, the latency (time delay) between a
plugged string and the output sound becomes noticeable, and will disturb the musician. (The
noticeable threshold is usually considered to be at 10ms.) The inner latency of the TORPEDO VB-
101 is below 5ms. In some cases (e.g., when chaining several digital audio devices), it can be
beneficial to reduce the latency of the TORPEDO VB-101, by turning the Latency Mode to "Low".
This reduces latency to less than 3ms, by suppressing the Overload parameter in the TORPEDO
VB-101’s speaker simulation.
• Load Compensation: This option activates a filter that corrects the dynamic reactions of the
amplifier when it is used with a loadbox (see section 2. 1). To get the most realistic sound possible,
you should activate it when you are using the integrated loadbox of the TORPEDO VB-101, and
deactivate it when using a speaker cabinet plugged into the "Speaker Thru" output (number 13
in figure 3.2).
30 Two Notes Audio Engineering Torpedo VB-101