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Midifilter.lv2 - a collection of MIDI data filters in LV2 plugin format.

ClassNameAudio/Midi/CTRLDescription URI
FilterCC2Note0/1/40/1/1Convert MIDI control change messages to note-on/off messages. Note off is queued 10msec later.http://gareus.org/oss/lv2/midifilter#cctonote
FilterMIDI Channel Filter0/1/160/1/1Simple MIDI channel filter. Only data for selected channels may pass. This filter only affects midi-data which is channel relevant (ie note-on/off, control and program changes, key and channel pressure and pitchbend). MIDI-SYSEX and Realtime message are always passed on. This plugin is intended for live-use, button-control. See also 'MIDI Channel Map' filter.http://gareus.org/oss/lv2/midifilter#channelfilter
FilterMIDI Channel Map0/1/160/1/1Rewrite midi-channel number. This filter only affects midi-data which is channel relevant (ie note-on/off, control and program changes, key and channel pressure and pitchbend). MIDI-SYSEX and Realtime message are always passed thru unmodified.http://gareus.org/oss/lv2/midifilter#channelmap
FilterMIDI Enforce Scale0/1/30/1/1Filter note-on/off events depending on musical scale. If the key is changed note-off events of are sent for all active off-key notes.http://gareus.org/oss/lv2/midifilter#enforcescale
FilterMIDI Event Filter0/1/120/1/1Notch style message filter. Suppress specific messages. For flexible note-on/off range see also 'keyrange' and 'velocityrange'.http://gareus.org/oss/lv2/midifilter#eventblocker
FilterMIDI Key-Range Filter0/1/40/1/1This filter allows to define a range of allowed midi notes. Notes-on/off events outside the allowed range are discarded. If the range changes, note-off events are sent to currently active notes that end up outside the valid range.http://gareus.org/oss/lv2/midifilter#keyrange
FilterMIDI Keysplit0/1/60/1/1Change midi-channel number depending on note. The plugin keeps track of transposed midi-notes in case and sends note-off events accordinly if the range is changed even if a note is active. However the split-point and channel-assignments for each manual should only be changed when no notes are currently played. http://gareus.org/oss/lv2/midifilter#keysplit
FilterMapCC0/1/30/1/1Change one control message into another -- combine with scalecc to modify/scale the actual value.http://gareus.org/oss/lv2/midifilter#mapcc
FilterMIDI Keys Transpose0/1/130/1/1Flexible 12-tone map. Allow to map a note within an octave to another note in the same octave-range +- 12 semitones. Alternatively notes can also be masked (disabled). If two keys are moapped to the same note, the corresponding note on/events are latched: only the first note on and last note off will be sent. The settings can be changed dynamically: Note-on/off events will be sent accordingly.http://gareus.org/oss/lv2/midifilter#mapkeyscale
FilterMIDI Chord0/1/120/1/1Harmonizer - make chords from single (fundamental) note in a given musical scale. The scale as well as intervals can be automated freely (currently held chords will change). Note-ons are latched, for multiple/combined chords only single note-on/off will be triggered for the duration of the combined chords. If a off-scale note is given, it will be passed through - no chord is allocated. Note: Combine this effect with the 'MIDI Enforce Scale' filter to weed them out.http://gareus.org/oss/lv2/midifilter#midichord
FilterMIDI Delayline0/1/40/1/1MIDI delay line. Delay all MIDI events by a given time which is give as BPM and beats. If the delay includes a random factor, this effect takes care of always keeping note on/off events sequential regardles of the randomization.http://gareus.org/oss/lv2/midifilter#mididelay
FilterMIDI Channel Unisono0/1/20/1/1Duplicate MIDI events from one channel to another.http://gareus.org/oss/lv2/midifilter#mididup
FilterMIDI Strum0/1/90/1/1A midi arpeggio effect intended to simulate strumming a stringed instrument (e.g. guitar). A chord is 'collected' and the single notes of the chord are played back spread out over time. The 'Note Collect Timeout' allows for the effect to be played live with midi-keyboard, it compensates for a human not pressing keys at the same point in time. If the effect is used with a sequencer that can send chords with all note-on at the exactly time, it should be set to zero.http://gareus.org/oss/lv2/midifilter#midistrum
FilterMIDI Chromatic Transpose0/1/30/1/1Chromatic transpose of midi notes and key-pressure. If an inversion point is set, the scale is mirrored around this point before transposing. Notes that end up outside the valid range 0..127 are discarded.http://gareus.org/oss/lv2/midifilter#miditranspose
FilterMIDI Monophonic Legato0/1/10/1/1Hold a note until the next note arrives. -- Play the same note again to switch it off.http://gareus.org/oss/lv2/midifilter#monolegato
FilterMIDI Remove Active Sensing0/1/00/1/1Filter to block all active sensing events. Active sensing messages are optional MIDI messages and intended to be sent repeatedly to tell a receiver that a connection is alive, however they can clutter up the MIDI channel or be inadvertendly recorded when dumping raw MIDI data to disk.http://gareus.org/oss/lv2/midifilter#noactivesensing
FilterMIDI Duplicate Blocker0/1/10/1/1MIDI Duplicate Blocker. Filter out overlapping note on/off and duplicate messages.http://gareus.org/oss/lv2/midifilter#nodup
FilterNote2CC0/1/40/1/1Convert MIDI note-on messages to control change messages.http://gareus.org/oss/lv2/midifilter#notetocc
FilterMIDI Note Toggle0/1/10/1/1Toggle Notes: play a note to turn it on, play it again to turn it off.http://gareus.org/oss/lv2/midifilter#notetoggle
FilterMIDI N-Tap Delay0/1/60/1/1This effect repeats notes N times. Where N is either a fixed number or unlimited as long as a given key is pressed. BPM and delay-time variable and allow tempo-ramps. On every repeat the given velocity-adjustment is added or subtracted, the result is clamped between 1 and 127.http://gareus.org/oss/lv2/midifilter#ntapdelay
FilterMIDI Thru0/1/00/1/1MIDI All pass. This plugin has no effect and is intended as example.http://gareus.org/oss/lv2/midifilter#passthru
FilterMIDI Quantization0/1/40/1/1Live event quantization. This filter aligns incoming MIDI events to a fixed time-grid. Since the effect operates on a live-stream it will introduce latency: Events will be delayed until the next 'tick'. If the plugin-host provides BBT information, the events are aligned to the host's clock otherwise the effect runs on its own time.http://gareus.org/oss/lv2/midifilter#quantize
FilterMIDI Velocity Randomization0/1/30/1/1Randomize Velocity of MIDI notes (both note on and note off).http://gareus.org/oss/lv2/midifilter#randvelocity
FilterScale CC Value0/1/70/1/1Modify the value (data-byte) of a MIDI control change message.http://gareus.org/oss/lv2/midifilter#scalecc
FilterMIDI Sostenuto0/1/30/1/1This filter delays note-off messages by a given time, emulating a piano sostenuto pedal. When the pedal is released, note-off messages that are queued will be sent immediately. The delay-time can be changed dynamically, changes do affects note-off messages that are still queued.http://gareus.org/oss/lv2/midifilter#sostenuto
FilterMIDI Velocity-Range Filter0/1/40/1/1Filter MIDI note-on events according to velocity. Note-on events outside the allowed range are discarded. If a Note-off is received for a note that was previously filtered, it is also not passed though. If the allowed range changes, note-off events are sent to currently active notes that end up outside the valid range.http://gareus.org/oss/lv2/midifilter#velocityrange
FilterMIDI Velocity Adjust0/1/70/1/1Change the velocity of note events with separate controls for Note-on and Note-off. The input range 1 - 127 is mapped to the range between Min and Max. If Min is greater than Max, the range is reversed. The offsets value is added to the velocity event after mapping the Min/Max range.http://gareus.org/oss/lv2/midifilter#velocityscale