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Connect signal to the L IN and it will be normalised to R IN, unless 
you connect a different signal to R IN. Turn the INPUT knob to 
increase input level. Ikarie is super sensitive to the input level and 
the character of the filter changes a lot under different settings of 
the INPUT. Going from silent to 5 times gain, Ikarie offers clean 
and balanced resonances when turned mid way, and overdriven 
character that does not lose bass, but keeps the resonant sweep 
in the high pass setting. The input gain can be also used to amplify 
most line level signals to the optimal operational level for this filter.

2 OUTPUTS 
- L OUT, R OUT

Listen thru L OUT only for both left and right channels mixed 
together. Connect cables to both L OUT and R OUT for stereo 
output. Going into L IN and only listening to L OUT results in 
parallel filtering with two resonant peaks.

3 CUTOFF

The CUTOFF knob provides an open filter in the centre position 
and renders LP (lowpass) filter sweep when turning CCW (counter 
clockwise) and HP (highpass) filter sweep when turned CW 
(clockwise). LP mode will cut high frequencies from the frequency 
spectrum and HP mode will cut low frequencies from the spectrum.

Please note: the filters are voltage controlled with CV – MOD, V/OCT 

or STEREO – thus centre position of the knob does not always 

translate into an open filter.

1 INPUTS 
- L IN, R IN

20KHZ

20KHZ

FREQUENCY

FREQUENCY

LOUDNES

S

LOUDNES

S

20HZ

20HZ

LOWPASS

HIGHPASS

CUTOFF

CUTOFF

CUTOFF

CUTOFF

Summary of Contents for Casper IKARIE

Page 1: ...TWIN AUT O FIL TER IKARIE...

Page 2: ...ptional overdrive of the input and you can explore a vast universe of sound design possibilities from liquidy through pinged percussive to lush and eerie All in a very compact form factor with tons of...

Page 3: ...lexible patch programmable topology Beyond output for difference spectrums twin peak filter modulation attenuverter v oct input with scaling trimmer accessible from the front panel output stereo VCA p...

Page 4: ...their respective inputs and outputs This is useful for filtering stereo signals or for monophonic multi peak resonance formant filtering The two filters are routed in parallel but can also be routed i...

Page 5: ...12V rails on that bus board the power rails are not overloaded by current Although there are protection circuits in this device we do not take any responsibility for damage caused by the wrong power...

Page 6: ...R E S O N A N C E TWIN IKARIE AUTO R IN VCA CV L IN V OCT MOD LP HP CUTOFF X INPUT MOD STEREO FOLLOW FAST MID SLOW S PR EAD PAN MONO 2 4 6 9 10 7 8 5 3 1 FRONT BACK...

Page 7: ...OUT R OUTV 3 CUTOFF 4 MOD 5 RESONANCE 6 V OCT 7 STEREO 8 VCA CV 9 FOLLOW 10BEYOND P A TCH TIPS FORMANT FILTERING QUAD ACID BEYOND STEREO PINGING FM PINGING SELF OSCILLATION POST FILTER RING MODULATOR...

Page 8: ...Listen thru L OUT only for both left and right channels mixed together Connect cables to both L OUT and R OUT for stereo output Going into L IN and only listening to L OUT results in parallel filterin...

Page 9: ...the more profound the impact on the final sound will be especially when modulating the CUTOFF frequency With no signal present at the input of the filter or with the INPUT turned fully CCW Ikarie will...

Page 10: ...on when using the filter in mono The default state with no effect is with the STEREO knob centered When the STEREO switch is in the SPREAD setting turning the STEREO knob CW will result in an increase...

Page 11: ...al into control voltage representing loudness of the incoming signal Therefore it can extract envelopes from the signal and surf on top of the waveform TheFOLLOWswitchcanbesettooneofthreeresponsivitys...

Page 12: ...r cutoff frequencies of suchafiltercanhaveresonantpeakswhenRESONANCEisengaged This filter topology is often referred to as the twin peak filter The BEYOND output can also be used in conjunction with L...

Page 13: ...IN V OCT MOD LP HP CUTOFF X INPUT MOD STEREO FOLLOW FAST MID SLOW SPREAD PAN MONO PATCH TIPS FORMANT FIL TERING Monophonicfilteringtechniquethatemphasises2relatedfrequencies as the filter sweeps throu...

Page 14: ...V OCT MOD LP HP CUTOFF X INPUT MOD STEREO FOLLOW FAST MID SLOW SPREAD PAN MONO QUAD ACID 4 resonant sweeps in one knob turn Similar to formant filtering but the cutoff frequencies are so far apart tha...

Page 15: ...BEYOND output as a stereo pair and use some of the techniques mentioned above The L OUT gives the sum of the frequency spectrum of both filters and BEYOND gives you the difference When sounds like th...

Page 16: ...with short pulses or noise bursts INPUT level plays a big part in the sound creation Take R OUT or BEYOND output and patch it into the MOD or STEREO input in SPREAD mode to create metallic alien nois...

Page 17: ...AUTO R IN VCA CV L IN V OCT MOD LP HP CUTOFF X INPUT MOD STEREO FOLLOW FAST MID SLOW SPREAD PAN MONO SELF OSCILLA TION Use Ikarie as a chaotic unstable noise tone generator by creating external feedba...

Page 18: ...WIN IKARIE AUTO R IN VCA CV L IN V OCT MOD LP HP CUTOFF X INPUT MOD STEREO FOLLOW FAST MID SLOW SPREAD PAN MONO POST FIL TER RING MODULA T OR Audiorate modulate STEREO in the PAN setting and listen to...

Page 19: ...INPUT MOD STEREO FOLLOW FAST MID SLOW SPREAD PAN MONO W A VEFORM CROSSFADING The PAN mode of STEREO balances levels of the left and right filter By listening only to the L OUT you can use it to crossf...

Page 20: ...MOD STEREO FOLLOW FAST MID SLOW SPREAD PAN MONO AGGRESSIVE 2 4DB FIL TERING Feed audio to L IN patch L OUT to R IN and listen thru R OUT for serial 24dB filtering Adding INPUT gain resonance STEREO de...

Page 21: ...WWW BASTL INSTRUMENTS COM MORE INFO AND VIDEO TUTORIALS...

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