Casio PX-5S

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Part IIChannel MessageMIDI Message Send by Controller These MIDI messages can be sent by assigning any controlchange from CC:00H to CC:65H, after touch, etc. to a controller (knob, slider, pedal, modulation, etc.)See the Instruments User’s Guide for details.Instrument Velocity Resolution The upper seven bits of the 14-bit resolution correspond to theNote On/Off message, while the lower seven bits correspond to the High Resolution Velocity Prefixmessage.Note On/Off High Resolution Velocity PrefixUpper 7 bits Lower 7 bits14bitsThe initial default value for the lower 7 bits is 00H. Receipt of a High Resolution Prefix messagecauses the lower seven bits to be set, but note on/off is not performed.Receipt of a Note On/Off message causes the upper seven bits to be set with note on/off performedwith 14-bit resolution Velocity.The High Resolution Velocity Prefix message corresponds the message immediately following the NoteOn/Off message, and the lower seven bits are cleared to 00H immediately following note on/off by theNote On/Off message. 7-bit resolution note on/off using only the Note On/Off message also continuesto be supported.For details about each message, see ” 5 Note Off”, ”6 Note On”, and ”7.21 High Resolution VelocityPrefix”.5 Note OffFormatMessage Format: 8nH kkH vvH9nH kkH 00H(receive only)n: MIDI Channel Numberkk: Key Numbervv: velocityTransmit Sent when something is played on the keyboard or when play is performed using an arpeggio,etc. The key number changes in accordance with on the Transpose function and Octave Shift function.Receive Receipt stops a note being sounded by a note on message.When a High Resolution Velocity Prefix message is received immediately prior to the Note Off messageand the lower seven bits of the 14-bit Velocity are set, the 14-bit resolution note off of the note beingsounded is performed.For information about the relationship between the Note On/Off message and High Resolution Ve-locity Prefix message, see ”Instrument Velocity Resolution” at the beginning of part II.Note off by making the Note On Velocity 00H is identical to note off by the combination of HighResolution Velocity prefix message 40H and Note Off Message 40H.8