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PHOBOS - USER MANUAL
3. IR OFFSET
Using the Offset you can adjust the starting point of the Impulse,
which is great for jumping into a certain part of a loop, or an
evolving pad to be used as an impulse, or randomising this using
an LFO in the mapping. Using the % knob you can jump in at any
point (%: 0% to 100%). Combining this with the quantise option
you can offset by beat related amounts, quantising the value of
the % knob to the set value. (QUANTISE: OFF, 1/64 to 4/1). In
addition to this, the quantise amount can be Dotted or turned
into a Triplet by using the relevant button.
4. PITCH & SPEED
The Pitch controls the overall pitch of the Convolver impulse
response in addition to any pitch shifts introduced depending on
the key used to trigger the Convolver (PITCH: -64st to +64st).
The pitch controls increase/decrease in single semitones. This
can be then fine tuned by shift clicking, and super fine tuned by
shift + alt clicking. The speed controls the speed (or tempo) of
the Convolver impulse response (SPEED: 0.25 to 4.0) relative
to the DAW.
There are three Pitch & Speed modes to choose from, available
in the popup menu above these controls:
• SIMPLE INTERP:
uses linear interpolation of the sample
stream where both speed and pitch affect both perceived pitch
and the playback tempo of the sample. This is the most efficient
option and perfectly usable if pitch shifts are small and time-in-
dependent pitch shifting is not required. (This is the default for
the convolvers.)
• HQ INTERP:
uses high quality interpolation of the sample
stream where both speed and pitch affect both perceived pitch
and the playback tempo of the sample. This is the highest quality
option where time-independent pitch shifting is not required.
• TIME/PITCH:
processes the time and pitch of the sample
stream independently where the sample will be locked to the
tempo of the DAW and pitch shifting may be applied inde-
pendently of tempo changes.
It is important to note that all of the convolver parameters
above, with the exception of the envelope “V-RELEASE” pa-
rameter, are applied to the generation of the impulse response
at the moment a key triggers the convolver. The parameters
below (plus the envelope “V-RELEASE” parameter) are applied
to the result of the input to the convolver and the result of this
convolved with the impulse response.
5. FILTERS
These are two simple high-pass and low-pass filters. HPF con
-
trols the cutoff frequency of the high-pass filter (HPF: 0.0 to
24kHz), with the resonance of this being controlled by the Q
above (Q: 0.5-10.0). Similarly LPF controls the low-pass filter
cutoff frequency (LPF: 0.0 to 24kHz), with the Q above con-
trolling the resonance.
6. GATES
There are two different types of gates within Phobos, with both
sharing the same Attack and Release knobs.
Gate Low,
is a standard noise gate, with the gate opening
when the incoming signal is above the level of the threshold
(THRESHOLD: -
∞
to 0.0dB), and reducing the signal by the sen-
sitivity when it is below (SENS: -
∞
to -20dB).
Gate High
does the reverse of Gate Low, whereby the signal
is let through unless it is above the threshold level. If above the
threshold level then the signal is reduced by the amount set on
the sensitivity knob.
The
Attack
controls the speed the gate opens once either Gate
High or Gate Low is opened (ATTACK: 0.00 to 0.30s), and the
Release controls the speed the gate closes (RELEASE: 0.00 to
1.00s).
7. MAPPINGS
This gets you straight back to your mappings panel as discussed
in the section
“modulation mappings”.
8. RANDOMISE
This will randomise the parameters on the convolver by ±10%
of the current values.
9. FFT SIZE
Here you can set the FFT (Fast Fourier Transform) of the Con-
volver, changing between Small, Medium and Large. What this
affects is the latency of the convolved signal. With the FFT on
small the delay between the source and convolved signal is re-
duced dramatically, however CPU usage is increased. With a
larger FFT the delay is increased, but reduces CPU usage. Using
a Small FFT with rhythmic material allows you to create really
tight pumping melodic content with the Convolves.
NB - All parameters can be set by double clicking on
the value
