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Thank you for trusting your instrument’s tuning to the Canvas Tuner!
Out of the box, you’ll find the tuner ready to use in vertical needle mode. Simply connect to a
power source* and your instrument’s cable to the input jack and you’re ready to tune up. Canvas
Tuner has a lot of options to explore including screen orientations, needle or strobe mode,
tuning presets, screen savers and more, so read on to get the most out of your new tuner!
*Only use a 9 volt DC, Center Negative, 300mA to power the pedal.
The use of an isolated power supply is recommended for powering all Walrus Audio Pedals.
Daisy chain power supplies are not recommended.
Got questions or need a repair?
Email help@walrusaudio.com to talk with a real live human about your Walrus gear!
This product comes with a limited lifetime warranty.
Click Here for more info.
CONTROLS
MENU BUTTONS:
Up Button - Navigate up in menus.
Menu Button - Access device menu & confirm menu selections.
Down Button - Navigate down in menus.
Stomp Switch - Used as a “back button” when in menu pages.
USB C Jack - USB C port for updating firmware via walrusaudio.io.
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MENU OPTIONS - DISPLAY
BRIGHTNESS
ORIENTATION
COLOR THEME
STANDBY
SCREEN
Adjust the screen backlight brightness from 1-10.
Rotate display 360 degrees in 90-degree increments.
Customize the color of the note indicator in Strobe &
Needle modes.
Customize the bypass screen image. Canvas Tuner has
three different standby screen modes to choose from:
1. Canvas - Walrus Audio Canvas color badge.
2. Screensaver - Cute little bouncing Walrus head.
Will it ever hit the corner?
3. Picture Mode - Upload your own image via USB to
be displayed on the bypass screen.
Visit walrusaudio.io for more information.
MENU OPTIONS - TUNER
MODE: Change between Needle and Strobe tuning modes. Each option
provides distinct visual feedback for a variety of tuning applications.
NEEDLE MODE: The incoming pitch is tracked on the tuning strip at
the top of the display. When an incoming note is flat, the indicator will
appear on the left of the center of the tuning strip and turn red. When
an incoming note is sharp, the indicator will appear on the right of
the center of the tuning strip and turn red. When you are in tune,
the indicator is centered with the arrows on the tuning strip and
the indicator will light up green.
IN TUNEFLAT
SHARP
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MENU OPTIONS TUNER
STROBE MODE: The incoming pitch is
tracked by the rotational speed and direction
of the tuning wheel around the target note.
When an incoming note is flat, the tuning wheel
will rotate counterclockwise. When an incoming
note is sharp, the tuning wheel will rotate clockwise.
The more flat or sharp the incoming note is, the faster the
tuning wheel will spin in the respective direction. As the note
T
A
L
F
R
A
H
S
P
becomes more in tune, the rotational speed of the tuning wheel decreases.
When the wheel stops rotating, the incoming note is in tune.
NOTE: the strobe algorithm is a direct connection to the pitch of
the incoming note. Since the pitch is always moving slightly, the
tuning wheel will never stop for long if at all. Tune until it is as still
as you can make it for hyper-accurate tuning.
MENU OPTIONS - TUNER
TUNING PRESET: Select pitch ranges that the tuner will display
and detect.
CHROMATIC: Tracks and detects the full frequency range of the
guitar signal.
GUITAR STD: Tracks and detects frequencies only in the standard
EADGBE guitar tuning range. When an incoming note is outside
of the tuning preset range, the note will not be tracked.
DROP D: Tracks and detects frequencies only in the standard
DADGBE guitar tuning range. When an incoming note is outside
of the tuning preset range, the note will not be tracked.
BASS STD: Tracks and detects frequencies only in the standard
EADG 4-string bass guitar tuning range. This tuning mode also
supports the lower B string and higher C string included in 5 and
6-string bases. When an incoming note is outside of the tuning
preset range, the note will not be tracked.
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MENU OPTIONS - TUNER
TRANSPOSE: Transpose the tuning presets to suit your
guitar’s drop or capo tuning. The tuning preset can be
transposed up to Capo 5 (+5 semitones) and down to Drop
6 (-6 semitones). Ex. The GTR STD preset will be set to tune
to DGCFAD when transposed to Drop 2.
REFERENCE PITCH: Modify the tonal center that the tuner
uses. By default, the tuner is set to the widely adopted
standard of 440Hz. This is the frequency that the A key
above Middle C on a piano is tuned to. The center pitch
can be lowered down to 390Hz and raised up to 490Hz.
IN-TUNE THRESHOLD: Modify the window the tuner uses
to determine if you are in tune in cents. In Needle Mode,
the In-tune Threshold affects how close the indicator has
to be to the tuning strip center before it turns green to tell
MODE
TUNING PRESET
TRANSPOSE
REFERENCE
PITCH
IN-TUNE
THRESHOLD
TUNE ASSIST
you you’re in tune. In Strobe Mode, the In-tune Threshold
affects the rotational speed as you approach the note
you’re tuning to. A lower threshold value will be more
precise with your tuning while a higher threshold value will
provide faster visual feedback.
TUNE ASSIST
Activating Tune Assist provides additional visual feedback for a more efface tuning
experience. When activated, the Canvas Tuner will track how long a note stays within the
In Tune Threshold window. When a note has successfully been detected within the in-tune
window for the defined time, a border will flash around the display to let you
know you’re in tune and can move to the next string. Choose between Slow,
Medium, Fast, and Instant thresholds to select how long the incoming
note has to stay within the in-tune window before Tune Assist
indicates you’re in tune.
TL;DR - Turn on Tune Assist.
If this border blinks, you’re
in tune.
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MENU OPTIONS - BYPASS MODES
Modify the signal bypass and muting behavior of the Canvas Tuner.
BUFFERED BYPASS: When the pedal is bypassed,
the incoming audio signal is routed through our
clean low-noise buffer. When the tuner is active, the
incoming signal is muted and the tuner is displayed.
RELAY BYPASS: When the pedal is bypassed,
the incoming audio signal is routed straight to
the output jack. This ensures there is no circuity
between the input and output when a buffer is
not desired. When the tuner is active, the incoming
signal is muted and the tuner is displayed.
MONITOR MODE: In Monitor Mode, the tuner is
always displayed and when not muted, the audio
is flowing through our clean low-noise buffer.
Pressing the Bypass Switch in this mode toggles the
mute on and off.
PASS-THRU: When the pedal is bypassed, the
incoming audio signal is routed through our clean
low-noise buffer. Pressing the Bypass Switch in this
mode toggles between the tuning screen and the
standby screen without muting. The signal is always
going to the output in this mode and can not be
muted.
MENU OPTIONS - ABOUT
View the current firmware version number and restore
your unit to factory settings.
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TECHNICAL INFO
Frequency Response: 20Hz To 20kHz
Tuning Accuracy: ±0.1 cent
THD: 0.001% @ 20Hz -20dBu
0.001% @ 1kHz -20dBu
Noise Floor: -112dBu
Signal To Noise Ratio: 98dB @ 1kHz
Input Impedance: ~1M Ohms
Output Impedance: ~400 Ohms
Power Requirement: 9VDC, 300mA
Bypass options:
• True bypass via a small signal relay
• Buffered bypass employing a high quality
op amp based buffer
Size Including Stomp/Jacks:
Height: 2.21” / 56.2mm
Width: 2.42” / 61.6mm
Depth: 4.55” / 115.7mm
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