Parse MIDI Messages
gem install midi-nibbler
or using Bundler, add this to your Gemfile
gem 'midi-nibbler'
require 'nibbler'
nibbler = Nibbler.newEnter a MIDI message represented as string bytes
nibbler.parse('904064')
=> #<MIDIMessage::NoteOn:0x98c9818
@channel=0,
@data=[64, 100],
@name="C3",
@note=64,
@status=[9, 0],
@velocity=100,
@verbose_name="Note On: C3">Enter a message byte by byte
nibbler.parse('90')
=> nil
nibbler.parse('40')
=> nil
nibbler.parse('64')
=> #<MIDIMessage::NoteOn:0x98c9818
@channel=0,
@data=[64, 100],
@name="C3",
@note=64,
@status=[9, 0],
@velocity=100,
@verbose_name="Note On: C3">Use numeric bytes
nibbler.parse(0x90, 0x40, 0x64)
=> #<MIDIMessage::NoteOn:0x98c9818 ...>You can enter nibbles in string format
nibbler.parse('9', '0', '4', '0', '6', '4')
=> #<MIDIMessage::NoteOn:0x98c9818 ...>Interchange the different types
nibbler.parse('9', '0', 0x40, 100)
=> #<MIDIMessage::NoteOn:0x98c9818 ...>Use running status
nibbler.parse(0x40, 100)
=> #<MIDIMessage::NoteOn:0x98c9818 ...>Look at the messages we've parsed so far
nibbler.messages
=> [#<MIDIMessage::NoteOn:0x98c9804 ...>
#<MIDIMessage::NoteOn:0x98c9811 ...>]Add an incomplete message
nibbler.parse('9')
nibbler.parse('40')See progress
nibbler.buffer
=> ["9", "4", "0"]
nibbler.buffer_s
=> "940"Pass in a timestamp
nibbler.parse('904064', timestamp: Time.now.to_i)
=> { :messages=> #<MIDIMessage::NoteOn:0x92f4564 ..>, :timestamp=>1304488440 }Nibbler defaults to generate midi-message objects, but it's also possible to use midilib
Nibbler.new(message_lib: :midilib)
nibbler.parse('9', '0', 0x40, '40')
=> "0: ch 00 on 40 40"- midi-eye, a MIDI event listener based on nibbler
- Ari Russo <ari.russo at gmail.com>
Apache 2.0, See the file LICENSE
Copyright (c) 2011-2022 Ari Russo
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