57 lines
No EOL
1.1 KiB
Markdown
57 lines
No EOL
1.1 KiB
Markdown
# MIDIPlayer
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A MIDI player for Elixir.
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## Prerequisites
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Install FluidSynth to play MIDI commands:
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On Linux:
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```sh
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sudo apt install libfluidsynth-dev
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```
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On OSX:
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```sh
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brew install fluidsynth
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```
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## Examples
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First, let's create some events.
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This plays a piano sound for the C note for 1 second:
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```elixir
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iex> piano = MIDIPlayer.Event.Note.new(0, 60, 0, 1000, 127)
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```
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We can change the instrument to a violin after one second like so:
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```elixir
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iex> change = MIDIPlayer.Event.ChangeProgram.new(0, 1000, 41)
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```
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(Note that it could be simpler to use another MIDI channel for another instrument.)
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Finally, play two notes on the violin at the same time:
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```elixir
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iex> violin1 = MIDIPlayer.Event.Note.new(0, 67, 1000, 3000, 127)
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iex> violin2 = MIDIPlayer.Event.Note.new(0, 64, 1000, 3000, 127)
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```
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Now we are ready to play these events.
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First start the player like so:
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```elixir
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iex> MIDIPlayer.start_link()
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```
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Then load the events, and play them!
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```elixir
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iex> MIDIPlayer.generate_schedule([piano, change, violin1, violin2], 3000)
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iex> MIDIPlayer.play()
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``` |