Onset detector. More...

Collaboration diagram for OnsetDetector:

Public Member Functions
	OnsetDetector (DetectorBank &db, const std::size_t offset, std::string csvfile)
	Construct an onset detector, given a DetectorBank. More...

void	analyse (std::vector< std::size_t > &onsets, result_t threshold)
	Analyse the input and return any onsets. More...

Protected Member Functions
result_t	getSegAvg ()
	Get average of current segment.

std::pair< bool, std::size_t >	findExactTime (std::size_t incStart, std::size_t incStop)
	Verify or reject onsets found by `analyse`

result_t	logResult (std::size_t channel, std::size_t idx)
	Get item from DetectorCache and calculate log. More...

Protected Attributes
DetectorBank &	db
	The DetectorBank which produces the results.

const std::size_t	offset
	Number of pad samples at beginning of input buffer.

const std::size_t	chans
	Number of channels.

const parameter_t	sr
	Sample rate.

std::unique_ptr< detectorcache::Producer >	p
	DetectorCache Producer.

const std::size_t	seg_len
	OnsetDetector and DetectorCache segment length.

const std::size_t	num_segs
	Number of segments to be stored.

std::unique_ptr< detectorcache::DetectorCache >	cache
	DetectorCache from which to get abs(z) values.

std::size_t	n
	Current sample number.

std::size_t	end
	Total number of samples in cache.

std::ofstream	logfile

std::ofstream	segfile

Detailed Description

Onset detector.

Definition at line 18 of file onsetdetector.h.

Constructor & Destructor Documentation

OnsetDetector::OnsetDetector	(	DetectorBank &	db,
		const std::size_t	offset,
		std::string	csvfile
	)

Construct an onset detector, given a DetectorBank.

Parameters

db	DetectorBank for this critical band
offset	Number of pad samples at beginning of the input buffer

Analyse the input and return any onsets.

Parameters

threshold amplitude above which DetectorBank output must be in order to qualify as an onset

result_t OnsetDetector::logResult	(	std::size_t	channel,
		std::size_t	idx
	)

protected

Get item from DetectorCache and calculate log.

If item is 0, 0 is returned

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