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OM-Chant 2.0 User Manual
Using the Maquette as a Control and Interaction Framework
The functions in the menu Chant Events/Maquette of the OM-Chant library
allow for the quick and easy creation of temporal boxes in the maquette
corresponding to Chant events.
Use :
- MAQ-FOF to create CH-FOF events
- MAQ-F0 , MAQ-F0-VIB , MAQ-F0-JIT , etc. to create CH-F0 events with possible vibrato, jitter and other effects.
Generating CH-F0 events as temporal boxes in a maquette
The tutorial patch “chant-temporal-boxes” shows how to articulate these events using transition or morphing between the temporal events.
Voir aussi
Use SYNTHESIZE inside the synthesis patch at the bottom-left corner of the maquette in order to synthesize the contents.
Transitions
Transition events can be created as temporal boxes using MAQ-FOF- TRANSITION (for CH-FOF events) or MAQ-F0-TRANSITION (for CH-F0 events).
A transition profile must be specified, using a BPF for CH-F0 events, and using a list of lists of BPF profiles, or a PHONEME object for CH-FOF events.
Generating a transition in a temporal box
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More about the PHONEME object in section “Transitions”
By connecting the transition boxes to existing Chant event temporal boxes, continuous phrases can be built automatically in the maquette editor.
A maquette with CH-FOF, CH-F0 and corresponding transition events.
The Chant events must not overlap in order to leave space for the transition events.
Morphing
Morphing between CH-FOF events can be intergated as temporal boxes as well using the MAQ-FOF-MORPH function.
A transition profile must also be specified, using a BPF.
Generating a morphing in a temporal box
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This time, the events must overlap in order to obtain the morphing effect on the overlapping interval.
A maquette with morphing events.
Note that the Chant synthesis method will ultimately ignore the events used as initial events of a morphing, in order to consider only the resulting, morphed events.
It is also possible to create advanced combined effects, by connecting morphing modules to other morphing modules, or a morphing module to a transition, etc…
Generating Chant Phrases
OM-Chant provides tools to automatically generate maquettes starting from CHORD-SEQ melodic lines and other compositional objects.
Examples are provided in the tutorial patch “gen-maquette”.
F0 events
MAKE-TEMPORAL-F0 fills a maquette with CH-F0 events according to the melodic data of a CHORD-SEQ and instructions for the generation of the temporal boxes.
These instructions are :
- A duration for the transitions ;
- A temporal patch responsible for the generation of one “note” event (i.e., a patch in mode “reference”) ;
- A temporal patch responsible for the generation of a transition between two CH-F0 events (id.)
The patches are just the same as the temporal patches created for instance using MAQ-F0, etc.
The 3 outputs of MAKE-TEMPORAL-F0 must then be connected to the inputs of the maquette box : time , objs , and connections.
The rest of the Chant events for synthesis (in particular the CH-FOF events) must be added in the maquette in order to complement the F0 events generated here.
FOF events
MAKE-TEMPORAL-FOF fills a maquette with CH-FOF events according to the melodic data of a CHORD-SEQ and instructions for the generation of the temporal boxes.
These instructions are :
- A string containing the sequence of phonemes to be synthesized ;
- A database (PONEME_DB) containing at least the phonemes in the previous string ;
- A duration for the transitions.
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The Phoneme DataBase
The phoneme database must be created as an object of type PHONEME_DB.
The two slots of this objects are :
- A list of pairs (character patch) where patch is a temporal patch corresponding to stationary events in the maquette (the formants or “vowels” corresponding to the notes in the chord-seq). [See MAQ-FOF]
- A list of pairs (character patch) where patch is a temporal patch corresponding to a transition between events. [See MAQ-FOF-TRANSITION]
Voir aussi
The 3 outputs of MAKE-TEMPORAL-F0 must then be connected to the inputs of the maquette box : time , objs , and connections.
The rest of the Chant events for synthesis (in particular the CH-F0 events) must be added in the maquette in order to complement the F0 events generated here.
FOF + F0 : Generatingthe whole sequence as a Maquette
MAKE-TEMPORAL-F0-FOF merges the two previous functions in one and generates a complete, ready-to-synthesize maquette.
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