Class: Feep::SoundPlayer

Inherits:
Object
  • Object
show all
Defined in:
lib/feep/sound_player.rb

Instance Method Summary collapse

Instance Method Details

#display_text_beep(duration) ⇒ Object

displays a fun ‘feep’ message after playing wav file



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# File 'lib/feep/sound_player.rb', line 43

def display_text_beep(duration)
  print 'Fe'
  1.upto(duration) {|ms|
    if ms % 100 == 0
      print 'e'
    end
  }
  puts 'ep!'
end

#play_note(frequency, output_filename, samples_to_write, options) ⇒ Object

main function that creates, plays, and removes note



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# File 'lib/feep/sound_player.rb', line 9

def play_note(frequency, output_filename, samples_to_write, options)
  if options[:verbose]
    puts 'Playing note'
    puts "  frequency:    #{frequency.to_f.abs}"
    puts "  midi:         #{Utils.freq_to_midi(frequency)}"
    puts "  duration:     #{options[:duration]}"
  end
  SoundFile.new.create_sound(frequency, samples_to_write, output_filename, options)
  play_wav_file(output_filename, options[:duration], options[:visual_cue])
  remove_sound(output_filename, options)
end

#play_wav_file(file, duration, visual_cue) ⇒ Object

use command line app to play wav file



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# File 'lib/feep/sound_player.rb', line 22

def play_wav_file(file, duration, visual_cue)
  if OS.windows?
    if command_exists?(SNDPLAYER_WIN)
      display_text_beep(duration) if visual_cue
      system("#{SNDPLAYER_WIN} #{file}")
    else
      puts "couldn't find #{SNDPLAYER_WIN}"
    end
  end

  if OS.mac? || OS.linux?
    if command_exists?(SNDPLAYER_UNIX)
      display_text_beep(duration) if visual_cue
      system("#{SNDPLAYER_UNIX} #{file}")
    else
      puts "couldn't find #{SNDPLAYER_UNIX}"
    end
  end
end

#remove_sound(file, options) ⇒ Object

removes the sound, unless marked to save, and optionally display info about file



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# File 'lib/feep/sound_player.rb', line 55

def remove_sound(file, options)
  unless options[:save]
    if OS.windows?
      system("del #{file}")
    else
      system("rm #{file}")
    end
  else
    if options[:verbose]
      info = WaveFile::Reader.info(file)
      duration = info.duration
      formatted_duration = duration.minutes.to_s.rjust(2, '0') << ':' <<
                         duration.seconds.to_s.rjust(2, '0') << ':' <<
                         duration.milliseconds.to_s.rjust(3, '0')
      puts ''
      puts "Created #{file}"
      puts '---'
      puts "Length:      #{formatted_duration}"
      puts "Format:      #{info.audio_format}"
      puts "Channels:    #{info.channels}"
      puts "Frames:      #{info.sample_frame_count}"
      puts "Sample Rate: #{info.sample_rate}"
    end
  end
end