Class: String

Inherits:
Object
  • Object
show all
Defined in:
lib/nxt_comm.rb,
lib/commands/sound.rb

Instance Method Summary collapse

Instance Method Details

#from_hex_str ⇒ Object 



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# File 'lib/nxt_comm.rb', line 43

def from_hex_str
  data = self.split(' ')
  str = ""
  data.each{|h| eval "str += '%c' % #{h}"}
  str
end

#to_freq ⇒ Object

converts a note string to equiv frequency in Hz TODO need to get a better range…



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# File 'lib/commands/sound.rb', line 72

def to_freq
  case self.downcase
    when "c"
      523
    when "c#"
      554
    when "d"
      587
    when "d#"
      622
    when "e"
      659
    when "f"
      698
    when "f#"
      740
    when "g"
      784
    when "g#"
      830
    when "a"
      880
    when "a#"
      923
    when "b"
      988
    else
      raise "Unknown Note: #{self}"
  end
end

#to_hex_str ⇒ Object 



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# File 'lib/nxt_comm.rb', line 37

def to_hex_str
  str = ""
  self.each_byte {|b| str << '0x%02x ' % b}
  str
end