A single-precision floating-point biquad using CMSIS-DSP hardware instructions. More...

Public Member Functions
	IirBiQuadFilterFloat (unsigned maxNumStages, const float *coeffs)
	Construct a Biquad filter with specified number of stages and coefficients. More...

virtual	~IirBiQuadFilterFloat ()
	Destructor.

void	changeFilterCoeffs (unsigned numStages, const float *coeffs)
	Reconfigure the filter coefficients. More...

bool	process (float output, float input, size_t numSamples)
	Process the data using the configured IIR filter. More...

Detailed Description

A single-precision floating-point biquad using CMSIS-DSP hardware instructions.

Use this when IirBiQuadFilterHQ is insufficient, since that version is still faster with 64-bit fixed-point arithmetic.

Constructor & Destructor Documentation

Aviate::IirBiQuadFilterFloat::IirBiQuadFilterFloat	(	unsigned	maxNumStages,
		const float *	coeffs
	)

Construct a Biquad filter with specified number of stages and coefficients.

See CMSIS-DSP documentation for more details

Parameters

maxNumStages	number of biquad stages. Each stage has 5 coefficients.
coeffs	pointer to an array of single-precision floating-point coefficients

void Aviate::IirBiQuadFilterFloat::changeFilterCoeffs	(	unsigned	numStages,
		const float *	coeffs
	)

Reconfigure the filter coefficients.

See CMSIS-DSP documentation for more details

Parameters

numStages	number of biquad stages. Each stage has 5 coefficients.
coeffs	pointer to an array of single-precision floating-point coefficients

bool Aviate::IirBiQuadFilterFloat::process	(	float *	output,
		float *	input,
		size_t	numSamples
	)

Process the data using the configured IIR filter.

output and input can be the same pointer if in-place modification is desired

Parameters

output	pointer to where the output results will be written
input	pointer to where the input data will be read from
numSamples	number of samples to process

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