gtfb_simd_cfg_t Class Reference

Public Member Functions
unsigned	get_bands () const
	Each band is split into this number of bands. More...
unsigned	get_channels () const
	The number of separate audio channels. More...
unsigned	get_frames () const
	The number of frames in one chunk. More...
	gtfb_simd_cfg_t (gtfb_simd_cfg_t &&)=delete
gtfb_simd_cfg_t &	operator= (gtfb_simd_cfg_t &&)=delete
	gtfb_simd_cfg_t (const gtfb_simd_cfg_t &)=delete
gtfb_simd_cfg_t &	operator= (const gtfb_simd_cfg_t &)=delete
	gtfb_simd_cfg_t (unsigned ch, unsigned frames, unsigned ord, const std::vector< mha_complex_t > &_coeff, const std::vector< mha_complex_t > &_norm_phase)
	~gtfb_simd_cfg_t ()
mha_wave_t *	process (mha_wave_t *s_in)

Private Attributes
unsigned	order
	The order of the gammatone filters. More...
unsigned	bands
	Number of frequency bands per channel. More...
unsigned	channels
	Number of input audio channels. More...
unsigned	bandsXchannels
	Product of bands and channels. More...
std::vector< mha_complex_t >	norm_phase
	Combination of normalization and phase correction factor. More...
float *	rinputs
	input signal (1 sample) multiplied with norm_phase More...
float *	iinputs
float *	rcoefficients
	The complex coefficients of the gammatone filter bands. More...
float *	icoefficients
float *	rstates
float *	istates
float *	sout_buf
	output signal buffer, used by s_out. More...
float *	large_array
	Large float array. More...
mha_wave_t	s_out

Detailed Description

Configuration for Gammatone Filterbank SIMD Analyzer.

Constructor & Destructor Documentation

gtfb_simd_cfg_t() [1/3]

gtfb_simd_cfg_t::gtfb_simd_cfg_t ( gtfb_simd_cfg_t &&  )

delete

gtfb_simd_cfg_t() [2/3]

gtfb_simd_cfg_t::gtfb_simd_cfg_t ( const gtfb_simd_cfg_t &  )

delete

gtfb_simd_cfg_t() [3/3]

gtfb_simd_cfg_t::gtfb_simd_cfg_t ( unsigned  ch, unsigned  frames, unsigned  ord, const std::vector< mha_complex_t > &  _coeff, const std::vector< mha_complex_t > &  _norm_phase  )

inline

Create a configuration for Gammatone Filterbank Analyzer.

Parameters

ch	Number of Audio channels.
frames	Number of Audio frames per chunk.
ord	The order of the gammatone filters.
_coeff	Complex gammatone filter coefficients.
_norm_phase	Normalization and phase correction factors.

~gtfb_simd_cfg_t()

gtfb_simd_cfg_t::~gtfb_simd_cfg_t ( )

inline

Member Function Documentation

get_bands()

unsigned gtfb_simd_cfg_t::get_bands ( ) const

inline

Each band is split into this number of bands.

get_channels()

unsigned gtfb_simd_cfg_t::get_channels ( ) const

inline

The number of separate audio channels.

get_frames()

unsigned gtfb_simd_cfg_t::get_frames ( ) const

inline

The number of frames in one chunk.

operator=() [1/2]

gtfb_simd_cfg_t& gtfb_simd_cfg_t::operator= ( gtfb_simd_cfg_t &&  )

delete

operator=() [2/2]

gtfb_simd_cfg_t& gtfb_simd_cfg_t::operator= ( const gtfb_simd_cfg_t &  )

delete

process()

mha_wave_t* gtfb_simd_cfg_t::process ( mha_wave_t *  s_in )

inline

Member Data Documentation

order

unsigned gtfb_simd_cfg_t::order

private

The order of the gammatone filters.

bands

unsigned gtfb_simd_cfg_t::bands

private

Number of frequency bands per channel.

channels

unsigned gtfb_simd_cfg_t::channels

private

Number of input audio channels.

bandsXchannels

unsigned gtfb_simd_cfg_t::bandsXchannels

private

Product of bands and channels.

norm_phase

std::vector<mha_complex_t> gtfb_simd_cfg_t::norm_phase

private

Combination of normalization and phase correction factor.

rinputs

float* gtfb_simd_cfg_t::rinputs

private

input signal (1 sample) multiplied with norm_phase

iinputs

float* gtfb_simd_cfg_t::iinputs

private

rcoefficients

float* gtfb_simd_cfg_t::rcoefficients

private

The complex coefficients of the gammatone filter bands.

icoefficients

float* gtfb_simd_cfg_t::icoefficients

private

rstates

float* gtfb_simd_cfg_t::rstates

private

Storage for Filter state. Holds channels() * bands() * order complex filter states. Layout: state[stage * bandsXchannels + bands()*channel+band]

istates

float* gtfb_simd_cfg_t::istates

private

sout_buf

float* gtfb_simd_cfg_t::sout_buf

private

output signal buffer, used by s_out.

Contains bandsXchannels * fragsize *2 entries. all real parts come before all complex parts. Order is: channel 0 band 0 real, channel 0 band 1 real, ..., channel 1 band 0 real channel 1 band 1 real, ... channel 0 band 0 imag ... then next sample

large_array

float* gtfb_simd_cfg_t::large_array

private

Large float array.

All previous pointers point into this array. Contains 3 unused entries to be able to adjust for alignment.

s_out

mha_wave_t gtfb_simd_cfg_t::s_out

private

Storage for the (complex) output signal. Each of the real input audio channels is split into frequency bands with complex time signal output. The split complex time signal is again stored in a mha_wave_t buffer. Each complex time signal is stored as adjacent real and imaginary channels. Complex output from one source channel is stored in adjacent complex output channels.

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The documentation for this class was generated from the following file:

• gtfb_simd.cpp