Resampler
Keywords: micromod.resamplers.Resampler interface

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## micromod.resamplers
Interface Resampler

All Known Implementing Classes:
  FIRResampler, LinearResampler

public interface Resampler

The Resampler interface specifies a pure resampling algorithm. The algorithm need not maintain any state between invocations, making implementations of resamplers far more straight-forward. As an added advantage, the resampling loop (where most of the cpu time is spent) can be made tighter. Since an implementation need not have to maintain a state, a single instance of a Resampler can be used for all channels, and this may be switched on the fly.

Field Summary
`static int` | `FIXED_POINT_BITMASK`
`static int` | `FIXED_POINT_ONE`
`static int` | `FIXED_POINT_SHIFT`

Method Summary
`int` | `getCushionSize()` Return minimum number of samples required by the resampler before and after the audio to be processed.
`void` | `resample(short[] inputBuf, int samplePos, int subSamplePos, int step, int subStep, short[] outputBuf, int position, int length)` Resample the audio in inputBuf to outputBuf.

Field Detail

### FIXED_POINT_SHIFT

    public static final int FIXED_POINT_SHIFT

See Also:
  Constant Field Values

### FIXED_POINT_ONE

    public static final int FIXED_POINT_ONE

See Also:
  Constant Field Values

### FIXED_POINT_BITMASK

    public static final int FIXED_POINT_BITMASK

See Also:
  Constant Field Values

Method Detail

### resample

    public void resample(short[] inputBuf,
                         int samplePos,
                         int subSamplePos,
                         int step,
                         int subStep,
                         short[] outputBuf,
                         int position,
                         int length)

  Resample the audio in inputBuf to outputBuf. The resampler should be able to deal correctly with a length of at least 1.

  Parameters:
    `samplePos` - The index of the sample in inputBuf
    `subSamplePos` - The fractional part of the index, in 16 bit fixed point.
    `step` - The integer part of the number of input samples per output sample.
    `subStep` - The fractional part of the number of input samples per output sample. The value is in 16 bit fixed point.
    `position` - The index of the output buffer to start writing to.
    `length` - The number of samples of output to produce.

### getCushionSize

    public int getCushionSize()

  Return minimum number of samples required by the resampler before and after the audio to be processed. A cubic resampler might return 3, for example.

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