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  /external/srec/audio/AudioIn/UNIX/include/
filter.h 30 #define FACTOR_DOWN 4 // downsampling factor
40 unsigned int factor_down; member in struct:fir_struct
55 extern FIR_struct* FIR_construct(unsigned int nTaps, const typeCoeff *pCoeffs, int scale, int factor_up, int factor_down);
  /external/srec/audio/AudioIn/UNIX/src/
filter.c 79 FIR_struct* FIR_construct(unsigned int nTaps, const typeCoeff *pCoeffs, int scale, int factor_up, int factor_down)
100 pFIR->factor_down = factor_down;
301 typeSample s_in[FACTOR_DOWN]; // input samples
343 FACTOR_DOWN);
352 nSampleGet = pFIR->factor_down; // if downsampling, only filter every factor_down samples
audioin.c 457 for ( x = 0, y = 0; x < iReadSamples; x += pFIR->factor_down )
459 FIR_downsample ( pFIR->factor_down, &( CodecBuffer[x] ), &( CodecBuffer[y++] ), pFIR );
654 for ( x = 0, y = 0; x < iReadSamples; x += pFIR->factor_down )
656 FIR_downsample ( pFIR->factor_down, &( CodecBuffer[x] ), &( CodecBuffer[y++] ), pFIR );
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