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Ghost adds the sub's harmonics 2–10 above Ghost from, so phones hear the note. The band above the split is measured per harmonic and only missing harmonics are filled, so added ones cannot cancel the patch's own. The sub level does not change. Phone monitors the output in mono, 400 Hz–7 kHz.
Anvil
Anvil gives every bass note the same solid sub. Current version 0.2.0.
In riddim and dubstep, each switch-up patch brings its own sub: a different level, a different phase, sometimes two layers that cancel. The drop's weight jumps from note to note and the kick lands differently on each one. Anvil removes the original band below Split and puts a clean mono sine in its place. The sine follows the bass pitch, has the same peak level on every note, and starts at the same phase on every note.
Install on Windows
Copy Anvil.clap into C:\Program Files\Common Files\CLAP\. In FL Studio 2024.1
or newer, open Options → Manage plugins, enable Verify plugins, and Find installed
plugins. Load Anvil in the mixer slot of the bass bus. Keep the font license with
redistributed packages.
Work with it
- Put Anvil on the bass bus, after the sound design and before the bus compression or clipping.
- Set Split just above the sub. 80–100 Hz suits most riddim basses.
- Set Sub level once. Every patch on the bus now gets this level.
- Use Phase to line the start of each note up with your kick. With Retrigger on, every note starts at this phase.
- Turn on Solo sub to hear only the new sub; the scope shows the original low band (grey) against the new sub (accent).
- Turn on Phone to check the drop the way phones and laptop speakers play it: mono, nothing below 400 Hz. A clean sub vanishes there. If the note disappears with it, raise Ghost.
Ghost harmonics
Phone speakers play almost nothing below 300–500 Hz. A clean 50 Hz sub sends all its energy below that, so on a phone the note is gone. The ear rebuilds a note's pitch from its harmonics, so harmonics alone carry the note.
Ghost adds the sub's harmonics 2–10 above Ghost from, falling 1/k like a saw. At 100 %, harmonic k sits at 2/k of the sub's level. They fade in over half an octave above Ghost from, and never reach below Split. The sub itself does not change, so the weight on a club system stays where Sub level puts it.
Anvil measures each harmonic of the patch above the split and adds only what is missing. A harmonic the patch already has meets an added one at an unrelated phase and could cancel it, so Ghost leaves those alone. The inset in the scope shows both, per harmonic: what the patch carries (grey) and what Ghost adds (accent). A riddim patch usually needs little; 808s and clean sine subs need the most. Each new note is measured from its first 60 ms; during that time every harmonic counts as missing.
Drive works differently: it saturates the sine itself, adds only odd harmonics, and changes the sub's own shape.
Other controls:
- Dynamics at 0 % holds the level for the whole note. Raise it to let the sub follow the original's volume shape, for example a wobble.
- Drive saturates the sine: odd harmonics and a thicker sub.
- Octave moves the sub against the detected note. Use −1 for a bass played one octave up.
- Glide slides between overlapping notes; 0 jumps.
- Gate is the input level that counts as a note. Raise it if tails or reverb start new notes.
- Keep blends some of the original low band back under the new sub.
- Snap to semitone rounds detected pitch. Turn it off for pitch bends and slides.
If Knurl is on the bass before the bus, use MIDI: Knurl's patterns make detection read notes from C2 upwards an octave low. See Signal chain.
Pitch from MIDI
Detection follows the audio by default. For heavy formant or FM basses where the fundamental is unclear, select MIDI and route the bass's MIDI notes to Anvil. In FL Studio, set the bass channel's MIDI output port and Anvil's input port to the same number, or duplicate the notes into a pattern on a channel that feeds Anvil.
Timing and limits
Detection uses 80 ms of lookahead, reported to the host for delay compensation, so each note's pitch is known before its attack leaves the plugin. Pitch range is 25–250 Hz, one voice: chords and layered notes in the sub band are not separated. Notes shorter than about 15 ms may not be recognised. A pitch move of more than 0.7 semitone that holds for two analysis hops (10 ms) starts a new note.
The crossover is a 4th-order Linkwitz–Riley pair, so with Keep at 100 % and no note playing, the signal passes with flat magnitude. Stereo above the split is kept; the new sub is mono.