AudioVU Class Reference

A VU meter that reads from an Audio stream using the Analyzer class. More...

#include <AudioVU.hpp>

Inheritance diagram for AudioVU:

Collaboration diagram for AudioVU:

Classes
class	Analyzer
	The AudioAnalyzePeak and AudioAnalyzeRMS classes don't implement a common interface, so we have to use our own RTTI wrapper to allow both classes to be used. More...

Public Member Functions
template<class T >
	AudioVU (T &level, float gain=1.0, uint8_t max=255)
	Create a new AudioVU object. More...
template<class T >
	AudioVU (T &level, MovingCoilBallistics ballistics, float gain=1.0, uint8_t max=255)
	Create a new AudioVU object. More...
uint8_t	getValue () override
	Get the value of the VU meter. More...
float	getFloatValue () override
	Get the value of the VU meter. More...
bool	getOverload () override
void	setGain (float gain)
	Set the gain for the VU meter. More...
uint8_t	getMax () const
	Get the maximum value that this VU meter can return. More...

Protected Attributes
const uint8_t	max

Private Attributes
MovingCoilBallistics	ballistics = MovingCoilBallistics::responsiveVU()
class AudioVU::Analyzer	level
float	gain

Detailed Description

A VU meter that reads from an Audio stream using the Analyzer class.

Examples

2.VU-Meter-OLED-USB-DAC.ino.

Definition at line 16 of file AudioVU.hpp.

Constructor & Destructor Documentation

AudioVU() [1/2]

template<class T >

AudioVU::AudioVU ( T &  level, float  gain = 1.0, uint8_t  max = 255  )

inline

Create a new AudioVU object.

Parameters

level	The Teensy Audio peak or RMS analyzer object. Note that it is kept by reference, so it must outlive the AudioVU instance.
gain	A multiplier to calibrate the VU meter.
max	The max output, or the length of the output scale: getValue will output a number in [0, max].

Definition at line 32 of file AudioVU.hpp.

AudioVU() [2/2]

template<class T >

AudioVU::AudioVU ( T &  level, MovingCoilBallistics  ballistics, float  gain = 1.0, uint8_t  max = 255  )

inline

Create a new AudioVU object.

Parameters

level	The Teensy Audio peak or RMS analyzer object. Note that it is kept by reference, so it must outlive the AudioVU instance.
ballistics	The dynamic model to use for the VU meter.
gain	A multiplier to calibrate the VU meter.
max	The max output, or the length of the output scale: getValue will output a number in [0, max].

Definition at line 51 of file AudioVU.hpp.

Member Function Documentation

getValue()

uint8_t AudioVU::getValue ( )

inlineoverridevirtual

Get the value of the VU meter.

Returns

A value in [0, max]

Implements IVU.

Definition at line 60 of file AudioVU.hpp.

getFloatValue()

float AudioVU::getFloatValue ( )

inlineoverridevirtual

Get the value of the VU meter.

Returns

A value in [0.0, 1.0]

Reimplemented from IVU.

Definition at line 70 of file AudioVU.hpp.

getOverload()

bool AudioVU::getOverload ( )

inlineoverridevirtual

Note

This function will always return false for an AudioVU.

Implements IVU.

Definition at line 83 of file AudioVU.hpp.

setGain()

void AudioVU::setGain ( float  gain )

inline

Set the gain for the VU meter.

Parameters

gain	The new gain.

Examples

2.VU-Meter-OLED-USB-DAC.ino.

Definition at line 90 of file AudioVU.hpp.

getMax()

uint8_t IVU::getMax ( ) const

inlineinherited

Get the maximum value that this VU meter can return.

Definition at line 30 of file VU.hpp.

Member Data Documentation

ballistics

MovingCoilBallistics AudioVU::ballistics = MovingCoilBallistics::responsiveVU()

private

Definition at line 93 of file AudioVU.hpp.

level

class AudioVU::Analyzer AudioVU::level

private

gain

float AudioVU::gain

private

Definition at line 134 of file AudioVU.hpp.

max

const uint8_t IVU::max

protectedinherited

Definition at line 33 of file VU.hpp.

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

• AudioVU.hpp