User:Contribution/Chanopif Project: Difference between revisions

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In MIDI 2.0, '''Registered Per-Note Controller #3: Pitch 7.25''' provides a high-resolution method for defining pitch beyond standard 12-tone equal temperament (12-EDO). The 32-bit data field for Pitch 7.25 is split into:

7 bits for the integer part (the “traditional” note number in semitones).

* 7 bits for the integer part (the “traditional” note number in semitones).

25 bits for the fractional part of a semitone.

* 25 bits for the fractional part of a semitone.

This gives 2^7 = 128 distinct note values (as in MIDI 1.0), each further divided into 2^25 microsteps, resulting in a total of 402,653,184 equal divisions per octave (12 semitones × 2^25). This extreme resolution allows for microtonal tunings with ~~sub~~-~~cent precision~~.

This gives '''2^7 = 128''' distinct note values (as in MIDI 1.0), each further divided into '''2^25''' microsteps, resulting in a total of '''402,653,184''' equal divisions per octave (12 semitones × 2^25). This extreme resolution allows for microtonal tunings with a precision of 1.49 × 10^-6 cents.

~~File Format~~

A Chanopif (.cnpf) file is a plain-text file containing a series of lines. Each line follows the pattern:

== File Format ==

A Chanopif (<code>.cnpf</code>) file is a '''plain-text''' file containing a series of lines. Each line follows the pattern:

decimal_channel hex_note_number hex_pitch7bits.fractionalPitch25bits_base32

<code>decimal_channel hex_note_number hex_pitch7bits.fractionalPitch25bits_base32</code>

Where:

@@ Line 14: / Line 14: @@
 In MIDI 2.0, '''Registered Per-Note Controller #3: Pitch 7.25''' provides a high-resolution method for defining pitch beyond standard 12-tone equal temperament (12-EDO). The 32-bit data field for Pitch 7.25 is split into:
-bits for the integer part (the “traditional” note number in semitones).
+* 7 bits for the integer part (the “traditional” note number in semitones).
-bits for the fractional part of a semitone.
+* 25 bits for the fractional part of a semitone.
-This gives 2^7 = 128 distinct note values (as in MIDI 1.0), each further divided into 2^25 microsteps, resulting in a total of 402,653,184 equal divisions per octave (12 semitones × 2^25). This extreme resolution allows for microtonal tunings with sub-cent precision.
+This gives '''2^7 = 128''' distinct note values (as in MIDI 1.0), each further divided into '''2^25''' microsteps, resulting in a total of '''402,653,184''' equal divisions per octave (12 semitones × 2^25). This extreme resolution allows for microtonal tunings with a precision of 1.49 × 10^-6 cents.
-File Format
-A Chanopif (.cnpf) file is a plain-text file containing a series of lines. Each line follows the pattern:
+== File Format ==
+A Chanopif (<code>.cnpf</code>) file is a '''plain-text''' file containing a series of lines. Each line follows the pattern:
-decimal_channel  hex_note_number  hex_pitch7bits.fractionalPitch25bits_base32
+<code>decimal_channel  hex_note_number  hex_pitch7bits.fractionalPitch25bits_base32</code>
 Where: