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## I

IIRFilter - Class in ddf.minim.effects
  An Infinite Impulse Response, or IIR, filter is a filter that uses a set of coefficients and previous filtered values to filter a stream of audio.
IIRFilter(float, float) - Constructor for class ddf.minim.effects.IIRFilter
  Constructs an IIRFilter with the given cutoff frequency that will be used to filter audio recorded at `sampleRate`.
imag - Variable in class ddf.minim.analysis.FourierTransform
indexToFreq(int) - Method in class ddf.minim.analysis.FourierTransform
  Returns the middle frequency of the ith band.
inverse(float[]) - Method in class ddf.minim.analysis.DFT
inverse(float[]) - Method in class ddf.minim.analysis.FFT
inverse(float[]) - Method in class ddf.minim.analysis.FourierTransform
  Performs an inverse transform of the frequency spectrum and places the result in `buffer`.
inverse(AudioBuffer) - Method in class ddf.minim.analysis.FourierTransform
  Performs an inverse transform of the frequency spectrum and places the result in `buffer`.
inverse(float[], float[], float[]) - Method in class ddf.minim.analysis.FourierTransform
  Performs an inverse transform of the frequency spectrum represented by freqReal and freqImag and places the result in buffer.
isEffected() - Method in class ddf.minim.AudioSource
isEffected() - Method in interface ddf.minim.Effectable
  Returns true if at least one effect in the chain is enabled.
isEnabled(AudioSignal) - Method in class ddf.minim.AudioOutput
isEnabled(AudioEffect) - Method in class ddf.minim.AudioSource
isEnabled(AudioEffect) - Method in interface ddf.minim.Effectable
  Returns true if `effect` is in the chain and is also enabled.
isEnabled(AudioEffect) - Method in class ddf.minim.EffectsChain
  Returns true if `e` is in the chain and is enabled.
isEnabled(AudioSignal) - Method in interface ddf.minim.Polyphonic
  Returns true if `signal` is in the chain and is also enabled.
isEnabled(AudioSignal) - Method in class ddf.minim.SignalChain
  Returns true if `e` is in the chain and is enabled.
isHat() - Method in class ddf.minim.analysis.BeatDetect
  In frequency energy mode this returns true if a beat corresponding to the frequency range of a hi hat has been detected.
isKick() - Method in class ddf.minim.analysis.BeatDetect
  In frequency energy mode this returns true if a beat corresponding to the frequency range of a kick drum has been detected.
isLooping() - Method in class ddf.minim.AudioPlayer
isLooping() - Method in class ddf.minim.AudioSnippet
isLooping() - Method in interface ddf.minim.Playable
  Returns true if this is currently playing and has more than one loop left to play.
isMuted() - Method in class ddf.minim.Controller
  Returns true if the line is muted.
isOnset() - Method in class ddf.minim.analysis.BeatDetect
  In sound energy mode this returns true when a beat has been detected.
isOnset(int) - Method in class ddf.minim.analysis.BeatDetect
  In frequency energy mode this returns true when a beat has been detect in the `ith` frequency band.
isPlaying() - Method in class ddf.minim.AudioPlayer
isPlaying() - Method in class ddf.minim.AudioSnippet
isPlaying() - Method in interface ddf.minim.Playable
  Returns true if this currently playing.
isPlaying() - Method in interface ddf.minim.spi.AudioRecording
isRange(int, int, int) - Method in class ddf.minim.analysis.BeatDetect
  In frequency energy mode this returns true if at least `threshold` bands of the bands included in the range `[low, high]` have registered a beat.
isRecording() - Method in class ddf.minim.AudioRecorder
  Returns the current record state.
isRecording() - Method in interface ddf.minim.spi.SampleRecorder
  Returns the current record state.
isSnare() - Method in class ddf.minim.analysis.BeatDetect
  In frequency energy mode this returns true if a beat corresponding to the frequency range of a snare drum has been detected.
isSounding() - Method in class ddf.minim.AudioOutput
isSounding() - Method in interface ddf.minim.Polyphonic
  Returns true if at least one signal in the chain is enabled.

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