Source Audio Soundblox Pro Bass Envelope Filter User Manual
BASS ENVELOPE FILTER
USER’S GUIDE
SA14 3
WELCOME
Thank you for purchasing the Soundblox Pro Bass Envelope Filter. The
effect unit specially optimized for the bass guitar. With
individual filter types, the
sounds, from traditional filter effects to advanced & unique
filter sounds.
BEF Pro offers a unique and useful variety of control
The
options. The unit functions as either an envelope follower or
LFO (Low Frequency Oscillator) driven filter, but is also
an
controllable with a standard expression pedal or our patented Hot Hand
The Quick Start guide will help you with the basics. For
more in-depth information about the
the following sections.
Enjoy!
The Source Audio team
BEF Pro is a highly flexible envelope filter
23
BEF Pro contains a wide range of
®
motion sensor ring,
BEF Pro, move on to
OVERVIEW
DIVERSE SOUND PALETTE
Featuring
FLEXIBLE ENVELOPE CONTROL
A highly bass-optimized envelope follower with multiple sweep and
speed control options.
MODERN DESIGN
A thoughtfully designed box which features rugged construction and
sleek looks.
STATE-OF-THE-ART DSP
Our proprietary
clear
LO-RETAIN
Our unique mixing algorithm carefully preserves the lowest bass
frequencies.
6 USER PRESETS
Easy to configure user presets in two banks selectable via 3 footswitches
for quick access to your favorite sounds.
7-BAND EQUALIZER
Ultra-precise 7-band equalizer for in-depth tone control saved per preset.
23 types of envelope filter and phaser effects.
56-bit Digital Signal Processor, the SA601, and crystal
24-bit converters.
FILTER CONTROL
The filter effects can be modulated with an envelope follower, an
(low frequency oscillator), expression pedal, or our patented Hot Hand
Motion Control sensor ring.
BACKPAGE PARAMETERS
a second level of control functions, providing access to different
shapes,
ACTIVE ANALOG BYPASS
Bypass is fully routed around the
signal degradation.
Q levels, customized expression pedal routing.
DSP and active input ensures zero
LFO
LFO
QUICK START
1. POWER
To power the unit, connect the included
the
9V DC jack (A) on the back panel. Note: Using a different supply
could damage the unit and void the warranty.
2. GUITAR/AUDIO CONNECTIONS
Next, plug your bass (or other instrument) into the jack labeled
IN (B)
via a standard ¼" cable. Connect your amp (or other audio device)
to the
GUITAR OUT jack (C), again with a standard ¼" cable. Both input
and output are mono signals.
3. SENSOR IN (optional)
To use your
SENSOR IN (D) jack and follow any instructions given with the sensor
BEF Pro with a Hot Hand sensor, connect the sensor to the
SENSOR
IN
GUITAR IN GUITAR OUT
EXP IN
DC adapter power supply to
MIDI IN
SENSOR
OUT
9V DC
GUITAR
D
CB
A
4. BRIEF KNOB AND PEDAL DESCRIPTIONS
See Controls section for more details.
A EFFECT: selects desired filter type
B SWEEP RANGE: adjusts the direction (up/down) and breadth of the
filter sweep or the depth of the
C FREQUENCY: adjusts the center frequency of the filter
4 | Quick Start
LFO and Hot Hand modulation.
D SPEED: Controls the attack and decay speed of the envelope fol-
lower, the
LFO speed, or the motion-sensitivity of the Hot Hand.
E MIX: adjusts the ratio of clean to wet signals.
F PRESET BANK BUTTON: select preset bank A (presets 1, 2, and 3) or
B (presets 4, 5, and 6).
G MOD SOURCE: selects between ENVELOPE, LFO, and HOT HAND as
the modulation source for the filter effect.
H TAP TEMPO ENABLE: Enables a tap tempo function for use with the
LFO.
I EQ SECTION: the two buttons select the frequency band to edit and
the knob adjusts the value of the selected band.
J FOOTSWITCHES: Enables/Disables a selected preset depending
on the currently selected preset bank. Press and hold to save an
edited preset. The switch to the far right also sets the tap tempo.
A
SWEEP RANGE SPEED
MINMIN
DOWN UP
B D
MAX MAX
HOT
HAND
C
FREQUENCY MIX
F
PRESET BANK
14
4 POLE LOW PASS SINGLE PEAK
2 POLE LOW PASS
4-61-3
11
10
12
09
08
07
06
05
04
03
02
(XD) (XC) (OE) (VA) (Q) (EL) (LS)
+12
0
-12
62 125 250 500 1K
< >
13
14
00
EQ ONLY
20
21
PHASERS
22
2K 4K
01
15
19
BASS ENVELOPE FILTER
25
TRIPLE PEAK
16
17
18
PEAK & NOTCH
USER
ATTACK
& DECAY
Y-AXIS
SLOW SLOW
WET
BACKPAGE
MODE
FAST FAST
LFO
DRY
MOD
SOURCE
TAP TEMPO
ENABLE
DECAY
WET
3
(TAP TEMPO)
X-AXIS
ENVELOPE
LFO
HOT HAND
(HOLD)
CALIBRATE
6
Quick Start | 5
E
G
H
I
J
FEATURES
The Soundblox Pro Bass Envelope Filter is a very flexible envelope filter
effect. The unit features multiple filter types ranging from simple to
complex, which can all be controlled by an Envelope Follower, an
(Low-Frequency Oscillator), the Hot Hand Motion Sensor or an Expression Pedal.
An Envelope Follower is an algorithm that responds to the amplitude (or
volume) of the incoming signal and creates a control signal based on the
input level. This control signal is used to modulate the filter to create an
auto-wah effect. (Note: The envelope follower signal can be reset to zero
between notes by a very brief moment of silence, allowing the next note
played to experience the full sweep of the filter effect all the way from its
starting point)
An LFO (low frequency oscillator) is an electronic signal that uses a
rhythmic pulse or sweep to create a control signal. This control signal
is used to modulate the filters of the
filter or sequencer-like effect. The
BEF Pro to create an oscillating
BEF Pro also features a variety of LFO
shapes including sine, square, saw, step and triangle, each of which can
dramatically change the sound of the effect.
The Hot Hand Motion Sensor uses data from an accelerometer placed
inside a wearable ring to modulate the filters of the
BEF Pro. Either a
wired or wireless sensor can be plugged into the sensor input on the
back panel. After the sensor is plugged in, use the
MOD SOURCE button
to select “Hot Hand Mode”. At this point the controls take on slightly different functions. Note that the calibrate feature is intended for use with
the “Hot Hand Mode” only.
LFO
An Expression Pedal can be used to control a variety of selectable parameters in the
BEF Pro including direct filter modulation like a standard
wah pedal.
The
BEF Pro features LO-RETAIN, an algorithm that alleviates the issue of
low-end “tone suck” commonly experienced with bass effects.
6 | Features
CONNECTIONS
GUITAR IN
Connect your bass guitar or other instrument here using a standard
MONO ¼" cable.
GUITAR OUT
Connect this to your amp, pedal, or other audio device.
EXPRESSION IN (optional)
Connect a passive expression pedal that uses a
expression pedal is assignable to a variety of parameters.
SENSOR IN (optional)
Connect an optional Hot Hand sensor here, either wired or wireless.
SENSOR OUT (optional)
Use a Source Audio daisy-chain cable to connect this jack to the sensor
input of another pedal.
MIDI IN (optional)
MIDI program and continuous control input. Connect to a MIDI output
with a standard
MIDI cable. Can also be used to sync the LFO with a MIDI
clock.
9V DC
Connect the included 9 Volt
DC power supply here. Use of a non-Source
Audio power supply may cause damage and void the warranty.
TRS plug here. The
SENSOR
IN
MIDI IN
GUITAR IN GUITAR OUT
EXP IN
SENSOR
OUT
9V DC
Connections | 7
CONTROLS: KNOBS
4 POLE LOW PASS SINGLE PEAK
SWEEP RANGE
EFFECT (not labeled)
The effect knob selects which filter type will be used. There are
positions (
In the
equalizer still applies. For information on the individual settings see the
Effect Types section.
SWEEP RANGE
In Envelope and Hot Hand modes, the sweep range knob controls the
direction and breadth of the filter sweep. The right side of the knob
(labeled
range as you turn the knob clockwise. The left side of the knob (labeled
DOWN) adjusts the breadth of the downward sweep, adding greater
range as you turn the knob counterclockwise. In
controls the depth of the upward and downward sweep, but keep in mind
that symmetric
random) will sound the same in either sweep direction. Conversely,
non-symmetrical
sound very different, depending on the direction of the sweep.
0 through 22) around the knob as well as a setting for EQ ONLY.
EQ ONLY mode, the envelope filter effect is bypassed but the
2 POLE LOW PASS
05
04
10
09
08
07
06
03
02
01
00
EQ ONLY
12
13
14
15
TRIPLE PEAK
16
17
18
PEAK & NOTCH
19
20
21
PHASERS
22
11
UP) adjusts the breadth of the upward sweep, adding greater
LFO mode the knob also
LFO shapes (i.e. sine, square, 6 and 8 step triangle, and
LFO shapes (i.e. rising saw and step sequences) will
23 effect
8 | Controls: Knobs
HOT
HAND
MINMIN
DOWN UP
MAX MAX
FREQUENCY
SPEED
The Frequency knob sets the center frequency of the filter sweep in all
modulation modes. Turning the knob counterclockwise will result in the
filter moving over lower frequencies for a darker sound. Turning the knob
clockwise will result in the filter sweep moving over higher frequencies
for a brighter sound.
SPEED
FREQUENCY
The Speed knob controls the attack and decay time of the envelope
follower or the rate of the
control is divided into two parts. Turn the knob to the left of
LFO. In Envelope mode, the range of the speed
12 o’clock to
adjust both the attack and decay times—as the knob is turned counterclockwise both will slow down equally. Turn the knob to the right of
12 o'clock and the attack will stay fixed at its fastest setting while the
decay time gets slower. In Hot Hand mode, this knob controls the sensitivity of the motion sensor and selects which axis of the sensor will be used.
ATTACK
& DECAY
Y-AXIS
FAST FAST
DECAY
X-AXIS
SLOW SLOW
LFO
MIX
The Mix knob adjusts the ratio of dry to wet signal. This knob is also
divided into two halves. Setting the Mix knob to
100% dry signal. Turning the knob to the right of 12 o’clock increases the
12 o’clock results in a
amount of wet signal while decreasing the dry. The right most position
results in a 100% wet signal. Turning the Mix Knob left of 12 o’clock
increases the amount of wet signal using
of the low-end bass frequencies.
LO-RETAIN to preserve more
DRY
WET
WET
MIX
Controls: Knobs | 9
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