Igor Engraver Manual

269 CHAPTER 16
MIDI and NIFF
well change the setting to 1/8 and correct the few semiquavers by hand afterwards.
Duration raster lets you define the note length quantisation, and is used for
rounding off recorded notes. If the value is set to 1, all notes will be rounded off
to “semi-breve-length” – that is, semi-breves, breves, or longas, and dotted
breves. If the value is set to 2, the notes recorded will be rounded off to “minimlength”.
If set to 3, the notes will be rounded off to “crotchet-length”, and so on.
Maximum tuplet nesting lets you specify the number of tuplets that should be
nested. In some art music and in music with “exotic” rhythms, it may be important
to be able to nest tuplets, i.e., to have tuplets within tuplets. In Igor
Engraver, you can have more or less an unlimited number of nested tuplets, but
the higher number of nested tuplets Igor Engraver is to recognise, the slower the
transcription process.
Max tuplet defines the maximum number of notes or rests that may be used in a
tuplet. For example, if you change this setting to 3, a quintuplet will not be recognised:
instead, the notes of the quintuplet would be quantised in another manner.
It is recommended that you enter a number that is as low as possible in the
box of this setting, to get a proper result when recording.
The Grace notes shorter than textbox lets you define when Igor Engraver is to
identify notes as grace notes. Entries that have a duration value lower than the
number in the Grace notes shorter than box will automatically become grace
notes. The relationship between milliseconds and note values depends on the
beats per minute setting in the MIDI Output pane. Some typical values are
shown below.
Relationship between note values and milliseconds:
The relationship between note values and milliseconds can be calculated as follows:
Number of milliseconds/beat = 60/the beat number
The table below shows some values where a crotchet equals one beat.
Note value
72 beats per
minute
96 beats per
minute
120 beats per
minute
1/1 3332 ms 2500 ms 2000 ms
1/2 1666 ms 1250 ms 1000 ms