Sound Open Firmware
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DSP Math & Filter Libraries

Fixed-point, floating-point, FFT, FIR/IIR accelerators, and vector math routines. More...

Files

file  dct.h
 Discrete Cosine Transform (DCT) matrix generation and planning.
 
file  decibels.h
 Fixed-point exponential and decibel-to-linear conversion functions.
 
file  fft.h
 Fast Fourier Transform (FFT) and Inverse FFT (IFFT) interfaces.
 
file  iir_df1.h
 Infinite Impulse Response Direct Form I (DF1) filter definitions.
 
file  iir_df1_generic.h
 Generic C implementation of Direct Form I IIR filtering for various bit depths.
 
file  iir_df2t.h
 Infinite Impulse Response Direct Form II Transposed (DF2T) filter definitions.
 
file  iir_df2t_generic.h
 Generic C implementation of Direct Form II Transposed IIR filtering.
 
file  lut_trig.h
 Fast lookup-table trigonometric sine approximation routines.
 
file  matrix.h
 Matrix math routines, allocation, multiplication, and transposition.
 
file  numbers.h
 Fixed-point arithmetic, saturation, rounding, and number format conversions.
 
file  trig.h
 Trigonometric, CORDIC, and polynomial approximation functions.
 
file  window.h
 Windowing functions (Blackman, Hamming, Hann, Bartlett, rectangular).
 

Detailed Description

Fixed-point, floating-point, FFT, FIR/IIR accelerators, and vector math routines.