Quantization Functions

This section describes functions that perform quantization specific to the AMRWB speech codec.

• ISFQuant_AMRWB
  Quantizes the ISF.
• ISFQuantDecode_AMRWB
  Decodes quantized ISFs from the received codebook index.
• ISFQuantDTX_AMRWB
  Quantizes the ISF coefficient vector in case of DTX mode.
• ISFQuantDecodeDTX_AMRWB
  Decodes quantized ISFs for DTX.
• GainQuant_AMRWB
  Quantizes the adaptive codebook gains.
• DecodeGain_AMRWB
  Decodes adaptive and fixed-codebook gains.
• EncDTXBuffer_AMRWB
  Buffers the ISP coefficients and previous logarithm energy coefficients.
• DecDTXBuffer_AMRWB
  Buffers the ISF coefficients and previous logarithm energy coefficients.

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