Resample Functions

This section describes functions that perform different signal resampling operations specific to the AMRWB+ speech codec.

• Downsample_AMRWBE
  Performs the signal decimating.
• Upsample_AMRWBE
  Performs signal oversampling.
• BandSplit_AMRWBE
  Splits the signal into low and high frequency components.
• BandJoin_AMRWBE
  Joins the low and high frequency signals.
• BandSplitDownsample_AMRWBE
  Downsamples input signal and splits it into high and low frequency components.
• BandJoinUpsample_AMRWBE
  Joins high and low frequency signals and upsamples the result.
• ResamplePolyphase_AMRWBE
  Upsamples or downsamples the input signal to or from the upper frequency (44.1/48 khz).

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