Manual Pages for UNIX Operating System command usage for man mlib_SignalMelCepstralInit_F32

mediaLib Library Functions  mlib_SignalMelCepstralInit_S16(3MLIB)



NAME
     mlib_SignalMelCepstralInit_S16,
     mlib_SignalMelCepstralInit_F32 - initialization for cepstral
     analysis in mel frequency scale

SYNOPSIS
     cc [ flag... ] file... -lmlib [ library... ]
     #include 

     mlib_status mlib_SignalMelCepstralInit_S16(void *state, mlib_s32 nlinear,
          mlib_s32 nmel, mlib_f32 melbgn, mlib_f32 melend, mlib_f32 meldiv,
          mlib_s32 order);


     mlib_status mlib_SignalMelCepstralInit_F32(void *state, mlib_s32 nlinear,
          mlib_s32 nmel, mlib_f32 melbgn, mlib_f32 melend, mlib_f32 meldiv,
          mlib_s32 order);


DESCRIPTION
     Each of  these  functions  initializes  the  internal  state
     structure for cepstral analysis in mel frequency scale.


     The init function performs internal state structure  alloca-
     tion  and global initialization. Per function call initiali-
     zation is done in each function, so the same internal  state
     structure can be reused for multiplefunction calls.

PARAMETERS
     Each of the functions takes the following arguments:

     state      Pointer to the internal state structure.


     nlinear    The number of band pass filters  in  linear  fre-
                quency scale.


     nmel       The number of band pass filters in mel  frequency
                scale.


     melbgn     The begin  radian  frequency  of  the  mel  scale
                filter  bank  defined  in linear frequency scale,
                where 0 < melbgn < melend < PI, melbgn is ignored
                if nlinear = 0.


     melend     The end radian frequency of the mel scale  filter
                bank defined in linear frequency scale, where 0 <
                melbgn < melend < PI.



SunOS 5.11           Last change: 2 Mar 2007                    1






mediaLib Library Functions  mlib_SignalMelCepstralInit_S16(3MLIB)



     meldiv     The  dividing  factor  in  linear  to  mel  scale
                conversion,  linear scale is measured in radians,
                with PI corresponding to half the sampling rate.


     order      The order of the input signal vector and the cep-
                stral coefficients, where length = 2**order.


RETURN VALUES
     Each of the functions returns  MLIB_SUCCESS  if  successful.
     Otherwise it returns MLIB_FAILURE.

ATTRIBUTES
     See attributes(5) for descriptions of the  following  attri-
     butes:



     ____________________________________________________________
    |       ATTRIBUTE TYPE        |       ATTRIBUTE VALUE       |
    |_____________________________|_____________________________|
    | Interface Stability         | Committed                   |
    |_____________________________|_____________________________|
    | MT-Level                    | MT-Safe                     |
    |_____________________________|_____________________________|


SEE ALSO
     mlib_SignalMelCepstral_S16(3MLIB),
     mlib_SignalMelCepstral_F32(3MLIB),
     mlib_SignalMelCepstral_S16_Adp(3MLIB),
     mlib_SignalMelCepstralFree_S16(3MLIB),
     mlib_SignalMelCepstralFree_F32(3MLIB), attributes(5)





















SunOS 5.11           Last change: 2 Mar 2007                    2