Pitch bend

[Scott Gravenhorst]

Maarten Halmans <halmans at globalxs.nl> wrote:
>Hi,
>
>a midi pitch bend message consists of 2 bytes, a MSB and a LSB. What's
>the range in semitones of the MSB and LSB(how much semitones is a note
>pitched up as the LSB or the MSB is 128). I would like to know this
>because I want to build a midi to cv converter which can handle the midi
>pitch bend messages.
There is no predefined span for pitchbend.  In the digital world, most
sound modules/synths have a stting which defines the full range from
+/- 1 semi to some maximum, (D110 is +/- 24 semis).

You would want to assemble the 2 data bytes (7 bits each) to a 14 bit number,
pump that into a DAC and then into a scaling amp.  The gain of the scaling
amp will determine the full range span of CV produced.


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