Class: GoogleSpeech::ChunkFactory

Inherits:
Object
  • Object
show all
Defined in:
lib/google_speech/chunk_factory.rb

Overview

break wav audio into short files

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(original_file, chunk_duration, overlap, rate) ⇒ ChunkFactory

Returns a new instance of ChunkFactory.



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# File 'lib/google_speech/chunk_factory.rb', line 9

def initialize(original_file, chunk_duration, overlap, rate)
  @chunk_duration    = chunk_duration
  @original_file     = original_file
  @overlap           = overlap
  @rate              = rate
  @original_duration = GoogleSpeech::Utility.audio_file_duration(@original_file.path)
end

Instance Attribute Details

#chunk_duration ⇒ Object

Returns the value of attribute chunk_duration.



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# File 'lib/google_speech/chunk_factory.rb', line 7

def chunk_duration
  @chunk_duration
end

#original_file ⇒ Object

Returns the value of attribute original_file.



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# File 'lib/google_speech/chunk_factory.rb', line 7

def original_file
  @original_file
end

#overlap ⇒ Object

Returns the value of attribute overlap.



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# File 'lib/google_speech/chunk_factory.rb', line 7

def overlap
  @overlap
end

#rate ⇒ Object

Returns the value of attribute rate.



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# File 'lib/google_speech/chunk_factory.rb', line 7

def rate
  @rate
end

Instance Method Details

#each ⇒ Object

return temp file for each chunk



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# File 'lib/google_speech/chunk_factory.rb', line 18

def each
  pos = 0
  while(pos < @original_duration) do
    chunk = nil
    begin
      chunk = Chunk.new(@original_file, @original_duration, pos, (@chunk_duration + @overlap), @rate)
      yield chunk
      pos = pos + [chunk.duration, @chunk_duration].min
    ensure
      chunk.close_file if chunk
    end
  end
end

#logger ⇒ Object 



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# File 'lib/google_speech/chunk_factory.rb', line 32

def logger
  GoogleSpeech.logger
end