class ESpeak::Speech

Attributes

options[R]
text[R]

Public Class Methods

new(text, options={}) click to toggle source

filename - The file that will be generated options - Posible key, values

:voice     - use voice file of this name from espeak-data/voices. ie 'en', 'de', ...
:pitch     - pitch adjustment, 0 to 99
:speed     - speed in words per minute, 80 to 370
:quiet     - remove printing to stdout. Affects only lame (default false)
# File lib/espeak/speech.rb, line 14
def initialize(text, options={})
  @text = text
  @options = options
end

Public Instance Methods

bytes() click to toggle source

Returns mp3 file bytes as a result of Text-To-Speech conversion.

# File lib/espeak/speech.rb, line 35
def bytes()
  stdout_str, stderr_str, process = Open3.capture3(espeak_command(command_options, "--stdout") + " | " + std_lame_command(command_options))
  stdout_str
end
bytes_wav() click to toggle source

Returns wav file bytes as a result of Text-To-Speech conversion.

# File lib/espeak/speech.rb, line 43
def bytes_wav()
  stdout_str, stderr_str, process = Open3.capture3(espeak_command(command_options, "--stdout"))
  stdout_str
end
sanitized_text() click to toggle source

espeak dies handling some chars this function sanitizes text

# File lib/espeak/speech.rb, line 51
def sanitized_text
  @text.gsub(/(!|\?|"|`|\)/, ' ').strip
end
save(filename) click to toggle source

Generates mp3 file as a result of Text-To-Speech conversion.

# File lib/espeak/speech.rb, line 28
def save(filename)
  system(espeak_command(command_options, "--stdout") + " | " + lame_command(filename, command_options))
end
speak() click to toggle source

Speaks text

# File lib/espeak/speech.rb, line 21
def speak
  system(espeak_command(command_options))
end

Private Instance Methods

command_options() click to toggle source
# File lib/espeak/speech.rb, line 57
def command_options
  default_options.merge(symbolize_keys(options))
end
default_options() click to toggle source

Although espeak itself has default options I'm defining them here for easier generating command (with simple hash.merge)

# File lib/espeak/speech.rb, line 65
def default_options
  { :voice => 'en',
    :pitch => 50,
    :speed => 170,
    :quiet => true }
end
espeak_command(options, flags="") click to toggle source
# File lib/espeak/speech.rb, line 72
def espeak_command(options, flags="")
  %Qespeak "#{sanitized_text}" #{flags} -v#{options[:voice]} -p#{options[:pitch]} -s#{options[:speed]}|
end
lame_command(filename, options) click to toggle source
# File lib/espeak/speech.rb, line 80
def lame_command(filename, options)
  "lame -V2 - #{filename} #{'--quiet' if options[:quiet] == true}"
end
std_lame_command(options) click to toggle source
# File lib/espeak/speech.rb, line 76
def std_lame_command(options)
  lame_command("-", options)
end
symbolize_keys(hash) click to toggle source
# File lib/espeak/speech.rb, line 84
def symbolize_keys(hash)
  hash.inject({}) do |options, (key, value)|
    options[(key.to_sym rescue key) || key] = value
    options
  end
end