Setup > Audio - Fractal VP4 Owner's Manual

VP4 OWNER'S MANUAL
SETUP > Audio
PARAMETER
Input Meter
Input Pad
0, 6 dB, 12 dB, 18 dB
Input Mode
MONO, STEREO
Input Source
Analog, SPDIF, USB 3/4
Output Mode
STEREO, SUM L+R,
COPY L->R, MUTE
Output Phase
NORMAL/INVERT
USB 1/2 & 3/4 Level
-40.00 – + 20.00 dB
Description
This meter shows the audio level in the VP4 after the Input Pad (see below). The meter turns red when input clipping occurs.
The Input Pad setting can be adjusted from 0 dB (for low-level input signals) to 6 dB, 12 dB, or 18 dB (for progressively louder
input signals). The default Input Pad setting is 12 dB, which is ideal for guitars with hot pickups.
When the input clips, the words "IN CLIP" also appear in red in the title bar of the main display, indicating the need to increase the
pad setting.
Automatic Input Pad Adjustment: If the input of the VP4 clips persistently, the unit will automatically increase the Input Pad
setting. When this occurs, the word "Auto" will appear next to the Input Pad value, for example: "12 dB (Auto)" indicating that
the pad was automatically increased to 12 dB. When you reboot the VP4, the automatic setting is cleared, and the last manually
selected value is restored. If you want to make the automatic pad setting permanent, just turn the Input Pad knob one "click" to
clear "Auto" and set the desired value. While "4CM Routing" is enabled, a common input pad setting is shared by both PRE and
POST inputs. Excessive levels at either of these will cause the automatic pad setting to be applied to both.
If the input still clips with the pad setting at 18dB, decrease the output level of the device(s) connected to the VP4 input(s).
Determines whether the VP4 accepts signal in mono or stereo.
When using the VP4 with a single input, set the Input Mode to 'MONO' and connect to the L/Mono input only.
When using the VP4 as a stereo device, make sure to set the Input Mode to "STEREO" and always connect cables to both the left
and right inputs (L/Mono and Right).
The Input Mode setting is overridden when the global "4CM Routing" option is ENABLED.
Sets the input source, selecting between Analog (the onboard jacks), SPDIF (the onboard SPDIF IN connector) or USB Channels
3/4, which appear as outputs on a connected computer. See
Connect only 48k streams to the SPDIF input, as the VP4 will automatically derive its 48k clock signal from the detected input.
This setting determines how signal is processed at the analog outputs. This control makes it easy to use the same presets in a
variety of stereo and mono environments.
USB and SPDIF Audio goes directly to the converters in stereo and is NOT affected by this setting.
The option "MUTE" is available in case you want to eliminate analog audio from the VP4 while using it with a DAW.
The Output Mode setting is overridden when the global "4CM Routing" option is ENABLED.
See Mono vs. Stereo on p. 11 for more on how the VP4 processes audio internally.
Determines whether signal at the output will be normal or phase-inverted relative to the actual output of the input or effects.
You can use this in a pinch to correct phase inversion problems elsewhere in your setup.
The USB 1/2 Level and USB 3/4 Level parameters adjust USB playback levels from -40 to +20 dB. While computer audio playback levels
are typically set on the computer itself, these controls are useful when you need an additional boost or cut.
THE SETUP MENU
p. 15 for more on USB.
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