ARDOUR::DSP Namespace Reference

Classes
class	Convolution
class	Convolver
class	DspShm
class	LowPass
class	Biquad
class	SpectrumAnalyzer
class	FFTSpectrum
class	PerceptualAnalyzer
class	StereoCorrelation
class	Generator

Functions
void	memset (float *data, const float val, const uint32_t n_samples)
void	mmult (float *data, float *mult, const uint32_t n_samples)
void	peaks (const float *data, float &min, float &max, uint32_t n_samples)
float	log_meter (float power)
float	log_meter_coeff (float coeff)
void	process_map (BufferSet *bufs, const ChanCount &n_out, const ChanMapping &in_map, const ChanMapping &out_map, pframes_t nframes, samplecnt_t offset)

Function Documentation

log_meter()

float ARDOUR::DSP::log_meter

(

float

power

)

non-linear power-scale meter deflection

Parameters

power

signal power (dB)

Returns

deflected value

log_meter_coeff()

float ARDOUR::DSP::log_meter_coeff

(

float

coeff

)

non-linear power-scale meter deflection

Parameters

coeff

signal value

Returns

deflected value

memset()

void ARDOUR::DSP::memset	(	float *	data,
		const float	val,
		const uint32_t	n_samples
	)

lua wrapper to memset()

mmult()

void ARDOUR::DSP::mmult	(	float *	data,
		float *	mult,
		const uint32_t	n_samples
	)

matrix multiply multiply every sample of ‘data’ with the corresponding sample at ‘mult’.

Parameters

data	multiplicand
mult	multiplicand
n_samples	number of samples in data and mmult

peaks()

void ARDOUR::DSP::peaks	(	const float *	data,
		float &	min,
		float &	max,
		uint32_t	n_samples
	)

calculate peaks

Parameters

data	data to analyze
min	result, minimum value found in range
max	result, max value found in range
n_samples	number of samples to analyze

process_map()

void ARDOUR::DSP::process_map	(	BufferSet *	bufs,
		const ChanCount &	n_out,
		const ChanMapping &	in_map,
		const ChanMapping &	out_map,
		pframes_t	nframes,
		samplecnt_t	offset
	)