Struct ns_mfcc_cfg_t
Config and state for MFCC calculator.
#include <ns_audio_mfcc.h>
Public Attributes
| Type | Name |
|---|---|
| const ns_core_api_t * | api API prefix. |
| uint8_t * | arena Pointer to arena (must be allocated by caller) |
| ns_fbanks_cfg_t | fbc Filterbank config (set internally) |
| uint32_t | frame_len Frame length. |
| uint32_t | frame_len_ms Not used. |
| uint32_t | frame_len_pow2 Frame length to nearest power of 2. |
| uint32_t | frame_shift_ms Not used. |
| uint32_t | high_freq High frequency cutoff. |
| uint32_t | low_freq Low frequency cutoff. |
| float * | mfccBuffer pointer to MFCC buffer (set internally) |
| float * | mfccDCTMatrix pointer to MFCC DCT matrix (set internally) |
| float * | mfccEnergies pointer to MFCC energies (set internally) |
| float * | mfccFrame pointer to MFCC frame (set internally) |
| float * | mfccWindowFunction pointer to MFCC window function (set internally) |
| uint32_t | num_coeffs Number of MFCC coefficients. |
| uint32_t | num_dec_bits Number of decimation bits. |
| uint32_t | num_fbank_bins Number of filterbank bins. |
| uint32_t | num_frames Number of frames. |
| uint32_t | sample_frequency Sample frequency of audio data. |
Public Attributes Documentation
variable api
API prefix.
const ns_core_api_t* ns_mfcc_cfg_t::api;
variable arena
Pointer to arena (must be allocated by caller)
uint8_t* ns_mfcc_cfg_t::arena;
variable fbc
Filterbank config (set internally)
ns_fbanks_cfg_t ns_mfcc_cfg_t::fbc;
variable frame_len
Frame length.
uint32_t ns_mfcc_cfg_t::frame_len;
variable frame_len_ms
Not used.
uint32_t ns_mfcc_cfg_t::frame_len_ms;
variable frame_len_pow2
Frame length to nearest power of 2.
uint32_t ns_mfcc_cfg_t::frame_len_pow2;
variable frame_shift_ms
Not used.
uint32_t ns_mfcc_cfg_t::frame_shift_ms;
variable high_freq
High frequency cutoff.
uint32_t ns_mfcc_cfg_t::high_freq;
variable low_freq
Low frequency cutoff.
uint32_t ns_mfcc_cfg_t::low_freq;
variable mfccBuffer
pointer to MFCC buffer (set internally)
float* ns_mfcc_cfg_t::mfccBuffer;
variable mfccDCTMatrix
pointer to MFCC DCT matrix (set internally)
float* ns_mfcc_cfg_t::mfccDCTMatrix;
variable mfccEnergies
pointer to MFCC energies (set internally)
float* ns_mfcc_cfg_t::mfccEnergies;
variable mfccFrame
pointer to MFCC frame (set internally)
float* ns_mfcc_cfg_t::mfccFrame;
variable mfccWindowFunction
pointer to MFCC window function (set internally)
float* ns_mfcc_cfg_t::mfccWindowFunction;
variable num_coeffs
Number of MFCC coefficients.
uint32_t ns_mfcc_cfg_t::num_coeffs;
variable num_dec_bits
Number of decimation bits.
uint32_t ns_mfcc_cfg_t::num_dec_bits;
variable num_fbank_bins
Number of filterbank bins.
uint32_t ns_mfcc_cfg_t::num_fbank_bins;
variable num_frames
Number of frames.
uint32_t ns_mfcc_cfg_t::num_frames;
variable sample_frequency
Sample frequency of audio data.
uint32_t ns_mfcc_cfg_t::sample_frequency;
The documentation for this class was generated from the following file neuralSPOT/neuralspot/ns-audio/includes-api/ns_audio_mfcc.h