Class: Deftones::Analysis::Waveform::Snapshot

Inherits:
Object
  • Object
show all
Defined in:
lib/deftones/analysis/waveform.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(samples) ⇒ Snapshot

Returns a new instance of Snapshot.



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# File 'lib/deftones/analysis/waveform.rb', line 9

def initialize(samples)
  @samples = samples
end

Instance Attribute Details

#samples ⇒ Object (readonly)

Returns the value of attribute samples.



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# File 'lib/deftones/analysis/waveform.rb', line 7

def samples
  @samples
end

Instance Method Details

#peak ⇒ Object 



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# File 'lib/deftones/analysis/waveform.rb', line 13

def peak
  @samples.map(&:abs).max || 0.0
end

#rms ⇒ Object 



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# File 'lib/deftones/analysis/waveform.rb', line 17

def rms
  return 0.0 if @samples.empty?

  Math.sqrt(@samples.sum { |sample| sample * sample } / @samples.length)
end