GoertzelConfig Struct Reference

Configuration for Goertzel algorithm detectors. More...

#include <GoerzelStream.h>

Inheritance diagram for GoertzelConfig:

Public Member Functions
	GoertzelConfig (const AudioInfo &info)
	Copy constructor from AudioInfo.
virtual void	clear ()
void	copyFrom (AudioInfo info)
	Same as set.
bool	equals (AudioInfo alt)
	Returns true if alt values are the same like the current values.
bool	equalsExSampleRate (AudioInfo alt)
	Checks if only the sample rate is different.
virtual void	logInfo (const char *source="")
	operator bool ()
	Returns true if all components are defined (no component is 0)
bool	operator!= (AudioInfo alt)
	Returns true if alt values are the different from the current values.
bool	operator== (AudioInfo alt)
	Returns true if alt values are the same like the current values.
void	set (AudioInfo info)
	Copies the values from info.
void	setAudioInfo (AudioInfo info)
	Same as set.

Public Attributes
uint8_t	bits_per_sample = DEFAULT_BITS_PER_SAMPLE
	Number of bits per sample (int16_t = 16 bits)
int	block_size = 205
	Number of samples to process per block (N) - affects detection latency and accuracy.
uint16_t	channels = DEFAULT_CHANNELS
	Number of channels: 2=stereo, 1=mono.
sample_rate_t	sample_rate = DEFAULT_SAMPLE_RATE
	Sample Rate: e.g 44100.
float	target_frequency = 440.0f
	Target frequency to detect in Hz (same for all channels)
float	threshold = 0.5f
	Detection threshold for magnitude (normalized samples, typically 0.1 to 1.0)
float	volume = 1.0f
	Volume factor for normalization - scales input samples before processing.

Detailed Description

Configuration for Goertzel algorithm detectors.

This structure extends AudioInfo to include Goertzel-specific parameters. It defines the frequency detection behavior, audio format, and processing parameters for the Goertzel algorithm implementation.

Author

pschatzmann

Copyright

GPLv3

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

• src/AudioTools/CoreAudio/GoerzelStream.h