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UI Scale
−
100%
+
Adjusts overall text & interface size.
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All effects enabled
Record Mode
OPEN
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Siren
Osc
V1.3.1
Electro-Mechanical Siren Synthesizer
If you are using a low performance device like a phone, you may want to consider turning off the effects to improve stability and reduce CPU usage.
This synthesizer can get loud. You may want to set your volume to something like 50% before starting a siren up.
Keep Effects On?
YES
NO
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Siren
Osc
V1.3.1
Electro-Mechanical Siren Synthesizer
SirenOsc has been updated to 1.3.1.
— Added Positional Effects
— Fixed Effect Default Values
— Fixed Oscillator Bugs
NEXT
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Siren
Osc
V1.3.1
Electro-Mechanical Siren Synthesizer
You may want to reset your settings as some settings are incompatible with version 1.3.1.
RESET
CANCEL
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Siren
Osc
V1.3.1
Electro-Mechanical Siren Synthesizer
All unsaved changes will be lost.
This will clear all saved settings and return SirenOsc to its default state. This cannot be undone.
RESET
CANCEL
Siren
Osc
V1.3.1
Electro-Mechanical Siren Synthesizer
If your audio cuts out or is too distorted, try turning off effects or lowering the volume.
DISABLE EFFECTS
LOWER VOLUME
CANCEL
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Siren
Osc
ELECTRO-MECHANICAL SIREN SYNTHESIZER
- APHIDAKS
IDLE
0 RPM
FILE
PRESETS
▶
BUILT-IN PRESETS
Default Preset (3T22)
IMPORT OSCP
SAVE OSCP
RESET
PREFERENCES
EFFECTS
ON
FAST MODE
OFF
POP-UPS
▶
TOGGLE POP-UPS
Startup Warning
Audio Tip
Update Notice
Reset Suggestion
TEXT DEBUG
RECORD MODE
SCALE
▶
UI SCALE
−
110%
+
THEME
▶
SELECT THEME
Default (Dark/Green)
Classic (Dark/Green)
Dark / Orange
Dark / Gray
Dark / Dark Blue
Light / Purple
Light / Black
Light / Red
FONT
▶
SELECT FONT
Share Tech Mono
Open Sans
HELP
TUTORIAL
SUBREDDIT
ABOUT
CHECK OUT THE SIRENSTUDIO SUBREDDIT!
Siren
Osc
Electro-Mechanical Siren Synthesizer
Made by
@AphidAks
© 2026 AphidAks — CC BY-NC-SA 4.0
CLOSE
IMPORT OSCP
CHOOSE .OSCP FILE
main.json
controls.json
timbre.json
oscillators.json
functions.json
diagram.json
effects.json
blower.json
rotation.json
constants.json
SELECT ALL
UNSELECT ALL
Model
—
Mfg
—
Creator
—
Desc
—
Version
—
IMPORT
CANCEL
SAVE OSCP
main.json
controls.json
timbre.json
oscillators.json
functions.json
diagram.json
effects.json
blower.json
rotation.json
constants.json
SELECT ALL
UNSELECT ALL
MODEL
MANUFACTURER
AUTHOR
DESCRIPTION
SAVE
CANCEL
TYPOGRAPHY DEBUG
CLOSE
.oscp
Chopper Diagram
SINGLE-TONE
DIAGRAM
HIGH ROTOR
LOW ROTOR
ENABLE ANIMATION
0 RPM
RPM OVER TIME
PEAK
─ WAVEFORM
OSCILLOSCOPE
0 Hz
Timbre
Oscillator
Peak RPM
Chopper Config
Single-Tone
Multi-Tone
Multi-Chopper
Waveform
Sine
Triangle
Sawtooth
Square
Parabolic
H.Port
0
Hz
L.Port
0
Hz
H.Vane
0
Hz
L.Vane
0
Hz
Undertone
0
Hz
Overtone
0
Hz
◀
PAGE 1 / 1
▶
Mixer
65% CAP
High Rotor
100%
High Vanes
45%
Low Rotor
95%
Low Vanes
40%
Undertone
30%
Overtone
50%
Output Volume
165%
Detune
Detune
0 ct
±100 CENTS
-8 ct
Dampers
ENABLE
SEQ
Constant
Undulate
Disconnect
Override
Def. Status
Delay
Idle
OFF
OFF
Wind-Up
OFF
OFF
Steady
OFF
OFF
Wind-Down
OFF
OFF
Damper Audio
SFX
ON
VOLUME
IMPORT
HUM
60%
IMPORT
OPEN
50%
IMPORT
CLOSE
80%
IMPORT
Sequence
ACTIVE
Steps
−
4
+
(2–8)
+ ADD GROUP
Presets
HI-LO
PULSE
RPM Raise
Raise Time (s)
Return Time (s)
Rate (ms)
Rate Offset (ms)
Contactor Motor
SIMULATED
Side 1: ON
Side 2: OFF
Side 3: ON
Side 4: OFF
MAX RPM:
--
Contactor Wind-up
Offset (s)
Function
Linear
Exponential
Sine
Hyperbolic Tangent
Quadratic
Logarithmic
In
Out
Both
Contactor Wind-down
Offset (s)
Function
Linear
Exponential
Sine
Hyperbolic Tangent
Quadratic
Logarithmic
In
Out
Both
CTR: 0
Controls
Power
Active
TEST (HOLD)
STEADY
CUSTOM
CANCEL
BRAKE
Brake Offset (s)
Brake Function
Linear
Exponential
Sine
Hyperbolic Tangent
Quadratic
Logarithmic
In
Out
Both
Signal Cycle
ON Timer (s)
OFF Timer (s)
ON Timer
—
OFF Timer
—
Custom Signal
On (ms)
Off (ms)
LET RPM REACH PEAK
OFF
Oscillators
+
Functions
Wind-up
Offset (s)
Function
Linear
Exponential
Sine
Hyperbolic Tangent
Quadratic
Logarithmic
In
Out
Both
Wind-down
Offset (s)
Function
Linear
Exponential
Sine
Hyperbolic Tangent
Quadratic
Logarithmic
In
Out
Both
Shut-Dampers Function
ACTIVE
Auto-fill
Wind-up
Offset (s)
Function
Linear
Exponential
Sine
Hyperbolic Tangent
Quadratic
Logarithmic
In
Out
Both
Wind-down
Offset (s)
Function
Linear
Exponential
Sine
Hyperbolic Tangent
Quadratic
Logarithmic
In
Out
Both
Pitch Decline
Enable Pitch Decline
Declined RPM
Decline Time (s)
Function
Linear
Exponential
Sine
Hyperbolic Tangent
Quadratic
Logarithmic
In
Out
Both
RPM Snapping
Normal Function Active
Torque Function Active
Vibrato
Enable Vibrato
Speed (s/cycle)
Depth (RPM)
Torque Switching
Enable Torque Switch
Switch RPM
Offset (s)
Function
Linear
Exponential
Sine
Hyperbolic Tangent
Quadratic
Logarithmic
In
Out
Both
Dual Motor
ACTIVE
RPM Offset
Delay (ms)
Motor 1 RPM
0
Motor 2 RPM
0
Effects
Disable all effects
RPM LOW PASS FILTER
ENABLED
Slope
6 dB/oct
12 dB/oct
24 dB/oct
Function
Linear
Exponential
Sine
Hyperbolic Tangent
Quadratic
Logarithmic
In
Out
Both
At 0 RPM (%)
At Peak RPM (%)
Curve Offset
0
Cutoff
-- Hz
REVERB 1
REVERB
CONVOLVER
ENABLED
Impulse Response File
LOAD IR
No file loaded
Housing Preset
— LOAD IR FILE ABOVE —
3T22 - SPATIAL REVERB 2
P50 - SPATIAL REVERB 3
Room Size
0%
Decay
100%
Diffusion
0%
Color (HF Damp)
45%
Low Cut
20 Hz
Pre-Delay (ms)
DRY
WET
35%
BLOWER
ENABLE
Amplitude
40%
Smoothing
100%
Output Gain
9%
Crossover Fade (RPM-linked)
Wind-down fade out
Cutoff RPM
Fade Time (s)
Wind-up fade in
Fade-in RPM
Fade-in Time (s)
Vol Reduction
NONE
FULL
90%
DRY
WET
100%
IDLE
Constant Blower Link
Wind-Up Offset (s)
Wind-Up Func
Linear
Exponential
Sine
Hyperbolic Tangent
Quadratic
Logarithmic
Wind-Down Offset (s)
Wind-Down Func
Linear
Exponential
Sine
Hyperbolic Tangent
Quadratic
Logarithmic
REVERB 2
REVERB
CONVOLVER
ENABLED
Impulse Response File
LOAD IR
No file loaded
Distance Preset
— LOAD IR FILE ABOVE —
20 FT - LEVEL A1
20 FT - BS - LEVEL A2
50 FT - BS - LEVEL B
80 FT - LEVEL C
100 FT - INDOOR - LEVEL D1
WORKSHOP - SPATIAL REVERB 1
Room Size
100%
Decay
48%
Diffusion
9%
Color (HF Damp)
60%
Low Cut
80 Hz
Pre-Delay (ms)
DRY
WET
100%
LOW PASS FILTER
ENABLED
Cutoff (Hz)
Resonance (Q)
DRY
WET
65%
HIGH PASS FILTER
ENABLED
Cutoff (Hz)
Resonance (Q)
DRY
WET
100%
DISTORTION
ENABLED
Drive
5%
Tone (Post LPF Hz)
Character
Soft Clip
Hard Clip
Fuzz
Bit Crush
Output Gain
100%
DRY
WET
60%
NORMALIZER
ENABLED
Pre-Gain
100%
Post-Gain
100%
Ceiling (dBFS)
Gain Reduction
0.0 dB
REVERB 3
REVERB
CONVOLVER
ENABLED
Impulse Response File
LOAD IR
No file loaded
IR Preset
— LOAD IR FILE ABOVE —
20 FT - LEVEL A1
20 FT - BS - LEVEL A2
50 FT - BS - LEVEL B
80 FT - LEVEL C
100 FT - INDOOR - LEVEL D1
WORKSHOP - SPATIAL REVERB 1
Room Size
100%
Decay
48%
Diffusion
9%
Color (HF Damp)
60%
Low Cut
80 Hz
Pre-Delay (ms)
DRY
WET
30%
Function Manager
Uses Modified
FL Studio FFC Syntax
+ Add New Function
Name
Equation
Input →
invalid equation
Add Function
Constants
A
ENABLE
Frequency (Hz)
Waveform
Sine
Triangle
Sawtooth
Square
White Noise
Volume
1%
LPF Cutoff (%)
8%
Blower Link
IDLE
RPM-Linked LPF
-- Hz
B
ENABLE
Frequency (Hz)
Waveform
Sine
Triangle
Sawtooth
Square
White Noise
Volume
1%
LPF Cutoff (%)
21%
Blower Link
IDLE
RPM-Linked LPF
-- Hz
+
Position Effects
Spatial FX
POSITION MAP
-12mi
0
+12mi
Directionality
OMNIDIRECTIONAL
DIRECTIONAL
BIDIRECTIONAL
DIRECTIONAL
BIDIRECTIONAL
Scale
(24mi)
(12mi)
(6mi)
(3mi)
1mi
1000ft
500ft
200ft
ctrl+scroll
Unit
Miles
Meters
Feet
Listener X
Listener Y
Distance to Siren
--
SPL at Listener
--
Effective Gain
--
LPF Cutoff
--
DISTANCE
ENABLED
Rotation Speed (sec)
4s
Depth
70%
200%
20000 Hz
40%
8D Range (ft)
DB @100FT
Max Dispersion
Min Dispersion
Mid Dispersion
AUTO
-20
DIRECTION
Rotation
ENABLED
DRY
WET
0 RPM
0%
Peak Wet %
Max RPM
Type
LINKED
Angle (°)
SIDE 1
100%
SIDE 2
100%
Start RPM
Stop RPM
Stop Delay (s)
TEST (HOLD)
Oscillation
Farthest Angle
Pause (s)
Sine
Collector Ring Wear
CUT
+ ADD SECTION
Panning Strength
100%
Rotation Speed (sec)
4s
35%
00000
RPM
Made in
Siren
Osc
BY APHIDAKS
Frequency Monitor
H.Port
--
0
Hz
L.Port
--
0
Hz
H.Vane
--
0
Hz
L.Vane
--
0
Hz
Undertone
--
0
Hz
Overtone
--
0
Hz
◀
PAGE 1 / 1
▶
Const A
MAX
--
Hz
Const B
MAX
--
Hz
Chopper Diagram
◀
1 / 1
▶
Line Graph
Oscilloscope
0 Hz
Controls
TEST (HOLD)
ALERT
CUSTOM
CANCEL
BRAKE
Dampers
ENABLE
SEQ
Const
Undulate
Sequence
Contactor
DISABLED
Cur
0 RPM
Max
-- RPM
S1: ON
S2: OFF
S3: ON
S4: OFF
Rotation
OFF
ENABLE
Max RPM
-- RPM
Mode
Linked
DRY
WET
0 RPM
Speed
0 RPM
Angle
0
°
Information
Model
—
Mfg
—
Desc
—
Creator
—
Made In
—
Pos Map
—
Siren
Osc
HELP
9:16
NORMAL MODE
Typography Debug
drag to move
HIDE
SirenOsc Logo
RPM Indicator
Oscillator Indicator
Section Header
Big Button Text
Pop-up Text
Small Section Label
Small Button Text
Internal Input Text
Indicator Label
Button Label
Input Label
Slider Label
Dropdown Label
Reset All to Current