Tiptop Audio ModFX / FSU Manual PDF
These two 8hp modules are not “oscillators” in the traditional sense, but together they can absolutely generate and shape melodic material from simple sources, short impulses, loops, and external audio.
Together, they work especially well for: 1. Karplus and resonator-based pitched voices 2. Looped melodic fragments 3. Granular/pitch-shifted lead lines 4. Stereo doubled melodic textures 5. Choir/formant-based pseudo-vocals 6. Evolving harmonized delays and chord clouds
From the manual, the most melody-relevant programs are:
These are the most obviously “pitched” functions.
They can turn triggers, clicks, noise bursts, and percussive audio into tuned tones.
These don’t generate melody on their own, but they are excellent for making a mono melody into something larger, animated, and harmonically richer.
These are useful for turning harmonically rich oscillators into vowel-like leads, moving spectral melodies, and animated stereo parts.
This bank is ideal for taking an existing melody or short motif and turning it into transposed, fragmented, or granulated melodic material.
This bank is very useful for capturing phrases and replaying them as melodic loops, harmonized layers, and shifting textures.
These are less “melody generators” and more harmonic enhancers/destructors. But used carefully, they can create sidebands and tuned coloration that support melodic lines.
The strongest melodic trick in this pair is Karplus-Strong on ModFX.
Use: - trigger clicks - short envelopes pinging a VCA - noise bursts - short percussion sounds - a filtered impulse - sharp attack waveforms
Karplus patches create a perceived pitch from a short excitation into a feedback delay line. That means you do not need a full oscillator voice to get a note-like result.
Trigger sequencer → short click/noise burst → ModFX Dual Karplus
Then: - Rate controls right-side pitch - Depth controls left-side pitch - Filter controls feedback/decay
Add CV to Rate and Depth and you get moving interval relationships.
Send the result into FSU Tape Saturation or Clipper to add body and presence.
FSU’s Sound on Sound bank is very strong for melodic phrase processing.
You can record a short phrase or note into the SOS buffer and then: - shift pitch independently left and right - scrub to different positions - reverse or varispeed playback - create harmonized or stretched versions
Oscillator melody → VCA → FSU SOS Dual Pitch
Use: - Gain as recording amount into buffer - Filter = one playback pitch - Depth = the other playback pitch
Record only short note groups. Then tune left/right heads into: - octave + fifth - unison + octave - minor third + fifth
You get a playable harmonizer/phrase doubler.
The manual notes Fidelity changes memory time and pitch behavior, so this becomes a compositional tool: - record at high fidelity - reduce fidelity - transpose playback - use resulting time-stretch-ish artifacts as melodic texture
The Glitch/Warp bank can make melodies from incoming notes or loops feel alive and unstable.
This bank doesn’t just “destroy” sound. It can make: - new transpositions - fluttering pitch ornaments - granular repeats that behave like arpeggios - fractured but musical lead textures
Simple saw/square melody → FSU Pitch Grain → ModFX Tri Stereo Chorus
FSU creates shifting pitch/grain melody fragments.
ModFX widens and smooths them into a lush stereo lead.
ModFX excels at taking a plain melodic line and making it sound like multiple performers.
A melody often feels small when it’s a single dry line. These programs add: - detuning - motion - stereo spread - pseudo-multi-tracking - ensemble thickness
VCO → filter/VCA → ModFX Vintage Ensemble or Tri Stereo Chorus
For best results: - use a simple waveform - try mostly wet or fully wet where recommended - modulate Rate or Depth slowly with CV for organic drift
Vintage Ensemble is especially nice for melodic pads and string-style counterlines.
The manual notes that Rate adds octave-down pitch, which can thicken a melody into a more harmonically grounded line.
One of the strongest pairings is:
Now you have: - a generated dyad or harmonic gesture - which can be looped, replayed, pitch-shifted, and layered
This can create: - ostinatos - pseudo-sequenced string patterns - ambient pluck loops - evolving harmonic motifs
Melody is not just pitch; it’s also timbre articulation. ModFX has several programs that help notes speak.
A simple saw melody can become: - vowel-like - more vocal - more animated - more separated in the mix
Rich oscillator → ModFX Ahh Detuned
Use: - Filter/Fdback to tune formants - Rate and Depth to detune left/right
This gives you choir-like pseudo-vocals for leads and melodic drones.
Then send that into: FSU Frozen Plate for a sustained vocal cloud.
Use this when ModFX is creating the initial melodic identity.
Best for: - Karplus plucks into looping/granular processing - chorused leads into varispeed/granular warp - formant voices into SOS looping
Noise burst → ModFX Chord Resonator → FSU Random Grains
Result: - pitched chordal resonances - chopped into moving granular melodic particles
Use this when FSU is generating fragments and ModFX is beautifying or stabilizing them.
Best for: - warped loops into chorus - glitch pitch into vibrato/ensemble - SOS phrases into stereo imaging
Melody source → FSU Glitch Pitch → ModFX Dimension
Result: - unpredictable pitch movement - polished into a wide stereo melodic texture
This is where things get very interesting.
Source → ModFX Karplus/Resonator → FSU Many Head Pitch Feedback → back to source mixer/send
You can get: - cascading tuned resonances - harmonically smeared repeats - self-building melodic ambience
Keep levels controlled.
Result: stereo plucked melody with warmth and attack.
Result: wide harmonized hook line.
Result: vocal-like sustained melodic voice.
Result: unstable but lush melodic repeats and shimmer.
Result: struck chord fragments evolving into melodic clouds.
Result: a lead that sounds layered, unstable, and lush.
Both modules have 3 CV inputs mapped to the 3 DSP parameters, which is very important.
These modules become more melodic when you feed them the right material.
ModFX Interval Karplus → FSU Dual Pitch
Creates tuned plucks, then harmonizes or mirrors them.
FSU Pitch Grain → ModFX Tri Stereo Chorus
Creates broken/pitched fragments, then turns them into a polished stereo synth line.
ModFX Chord Resonator → FSU Frozen Plate
Turns percussive hits into resonant chord tones suspended in reverb-like space.
ModFX Ahh Detuned → FSU SOS Varispeed
Creates choir-like tones and then stretches/reverses them into phrases.
These modules can work together melodically in three major ways:
especially with Karplus, resonators, detune, formants, and chorus
FSU captures, transposes, fragments, and repeats melodic material
especially with SOS, pitch/grain, and varispeed modes
Together they turn simple sources into full melodic textures
If you want, I can also turn this into: - a “best melodic patches” cheat sheet - a signal-flow diagram - or a program-by-program ranking for ambient / techno / IDM / soundtrack use