DACS FREQue II
Ring Modulator and Frequency Shifter with Comprehensive On-Board Mixers and Balanced Inputs and Outputs
Produce pumping tracks that stand out from the crowd with the FREQue II (pronounced ''freak''), a genuinely new and inspirational analogue effects processor.
A ring modulator is a simple device that takes two signals (each with a
frequency), and produces a signal containing the sum and differences of
those frequencies. It’s an effect that’s been around since the early
days of electronic music.
DACS Freque II brings the ring modulation
into the modern studio world, and adds frequency shifting to the
effect. With the Freque II, you can create a wide range of effects,
from subtle stereo processing to seriously twisted sound design.
With low frequency modulation inputs:
Simple to complex autopan effects, gating, amplitude modulation, flanging, spatialising
With mid frequency modulation inputs:
Vocoding type effects, adding tunable harmonics, both lower down to subsonic, and up to supersonic, second harmonic distortion (like valves/tubes), harmonising, retuning percussion, gating, general rich distortion, Sci-Fi voices (eg a Dalek)
With high frequency modulation inputs:
Transposition with distortion, adding glitter, air, sparkle etc when mixed back into original
With music or sounds into both inputs:
Vocoding effects, gating effects, fattening/thickening effects, spatial effects, weird transformations
Frequency Modulation of modulation oscillator at all frequencies, giving effects ranging from slow pulsation to the classic FM generation of complex waveforms
External voltage control of oscillators:
Envelope follower effects, FM effects as above, randomized autopanning
Up and down shift of frequency with change in harmonic structure, with FM for sliding effects, using feedback loop to create filter type sweeps
DACS FREQue II Application Ideas:
This section is not intended to be a comprehensive list of all that can be done with the FREQue II. Rather it is a list of starting points for you to begin experiments from. Using the FREQue II, producers and engineers can almost infinitely extend the voices of their existing battery of synthesizers and sound generators and create vast ranges of completely new sounds, add depth and warmth to early digital synthesizers, give drums new power, radically transform voices...
Some treatments will require mixing with the original signal and some will need to be kept separate. For example adding distortion to a continuous sound will need mixing while gating effects will not.
Tone and Music:
Feed a stable tone, or a slightly varying one, into the MOD input and the music or tune into the MUSIC input. The MOD input could be from the internal oscillator. If the MOD input is harmonically related to the key of the music the OUTPUT will tend to be harmonic e.g. the MOD input is a D and the music is in the key of D, then the output will tend to be harmonically rich. If the MOD input is not related, then the output will be rough, bell like and/or noisy depending on the frequency of the input.
Use held chords that have a certain amount of vibrato - as the pitch of the chords varies so the harmonic content of the sound will vary
Vary the MOD frequency to generate sliding upper and lower harmonics
Use randomly generated frequencies from synthesisers on MOD input
Try varying the edge controls contrariwise i.e. turn one up as you turn the other down, to produce stereo effects
Have a go at the 1st oscillator range to produce gating effects, the 2nd range to produce tremolo effects, the 3rd range to produce heavy modulation effects while the 4th range will produce higher and higher harmonic effects
Feed percussive sounds into the MUSIC input and tones or other sounds into the MOD input. The MUSIC input will then act as a trigger and give a gating effect, only producing OUTPUT when the MUSIC input signal is present.
Vary the MOD input frequency to produce output harmonically related to the music
Feed the melody into the MOD input and the percussion will 'play the tune', or at least tend to go up and down with it
Feed any old music to the MOD to produce an effect similar to scratching
Feed the MOD input with carefully selected samples synchronised with the percussive sounds
Using the FREQue II's oscillator set on the 2nd or 3rd range generate deep deep bass sub harmonics on bass drums
Using the oscillator set on the 4th range generate grain, grit and glitter on snares, hi hats, cymbals, maracas
Feed your voice into the MUSIC input and feed a variety of signals into the MOD input - music, tone, noise...
Use the voice to gate the MOD inputs
Use the voice as a percussion imitator to produce hot rhythm sections from modulated MOD inputs
Try the 1st range to produce gating and heavy breathing effects, the 2nd range to produce tremolo and panting effects, the 3rd range to produce heavy modulation effects (Dalek/sci-fi voices among others) while the 4th range will produce higher and higher harmonic effects
Same signal or L & R of stereo into both inputs
Feed the same signal or the left and right of a stereo signal into the MUSIC and MOD inputs.
Mix the output into the original signal to harmonically enhance the signal
Left and right inputs into MOD and MUSIC inputs respectively on both modules can produce phasing and other spectral phenomena, particularly if the spectral controls are varied
Try varying the edge and/or weight controls contrariwise i.e. turn one up as you turn the other down, to produce stereo effects
Use a delay line to process signals going in to or out from the units
Feed audio out back to MUSIC input via delay at tempo or multiple of tempo
Do the above with long decays on the end of sounds
Split the signal to both inputs and use delay line on one input to produce weird flanging effects on output, pan both outputs centrally or left and right
Feed music into the MUSIC input of one modulator and use the internal oscillator to modulate it. Take this OUT to the MUSIC input of the second modulator and modulate it with the same internal oscillator. The result is that the original signal is reconstituted and additional higher partials are also added.
DACS FREQue II Technical Specifications :
Spectral Controls on MUSIC input
Weight Bass filter (shelving) ±12dB gain from around 80Hz@6dB/8ve
Edge Treble filter (shelving) ±12dB gain from around 8kHz@6dB/8ve
Switch Pressed in this activates Spectral Controls
Connectors ¼" jack, three pole (balanced), Tip /in phase, Ring cold/reverse phase, sleeve 0V
Optimum results occur with input levels of +2dBu to +12dBu, maximum input level > +12dBu
Freq Response Music inputs <20Hz to >35 kHz, modulator input DC to >35kHz
MOD Module8ion Input - this feeds one side of Ring Mod
MUSIC Main Input - this feeds the other side of Ring Modulator if spectral controls are activated they vary the spectrum of this input
Breakthrough MOD in +10dBm with no MUSIC signal, MOD out <-65dBm maximum, typically <-70dBm, same for MUSIC signal with no MOD
Connectors ¼" jack, three pole, as above
Oscillator output at ca +12dBu
Levels For input levels of +4dBu to +12dBu output will be around1 +4dBu - +12dBu, maximum output level around 65kHz
Freq Response Flat from DC to a -3dB point at around 65kHz
Signal to noise -82dB (equivalent to a good mic set to medium gain)
Fine Varies around centre frequency by ca 5%
Tune Varies centre frequency over selected range
Range Selects from 4 ranges - [0.2Hz-9Hz, 2Hz-90Hz, 20Hz-900Hz and 380Hz-11kHz]
CV Inputs to each oscillator on ¼" jacks (unbalanced), 0-15V, V/Hz characteristics
Output for both oscillators @ +12dBu
1) The modulation process involves the interaction of both inputs, and as such it is impossible to predict exact output levels