Envelope Struct Reference

Structure describing the envelope (dynamics) of a sound. More...

#include <synthesizer.h>

Public Member Functions
	Envelope (double attack=0, double decay=0, double sustain=0, double release=0, double hammer=0)
	Envelope::Envelope. More...

Public Attributes
double	attack
	Initial attack rate. More...
double	decay
	Subsequent decay rate. More...
double	sustain
	Sustain level. More...
double	release
	Release rate. More...
double	hammer
	Intensity of hammer noise. More...

Detailed Description

Structure describing the envelope (dynamics) of a sound.

The envelope of synthesizer sounds follows the conventional ADSR scheme. A first attack phase and a subsequent decay is followed by a sustain period of constant volume while the key is pressed. Finally, when the key is released, the envelope enters the release phase.

Definition at line 46 of file synthesizer.h.

Constructor & Destructor Documentation

Envelope::Envelope	(	double	attack = 0,
		double	decay = 0,
		double	sustain = 0,
		double	release = 0,
		double	hammer = 0
	)

Envelope::Envelope.

Parameters

attack	: Rate of initial volume increase in units of 1/sec.
decay	: Rate of the subsequent volume decrease in units of 1/sec. If this rate is zero the decay phase is omitted and the volume increases directly towards the sustain level controlled by the attack rate.
sustain	: Level at which the volume saturates after decay in (0..1).
release	: Rate at which the sound disappears after release in units of 1/sec.
hammer	: Volume of a hammer-like noise at the beginning

Definition at line 49 of file synthesizer.cpp.

Member Data Documentation

double Envelope::attack

Initial attack rate.

Definition at line 48 of file synthesizer.h.

double Envelope::decay

Subsequent decay rate.

Definition at line 49 of file synthesizer.h.

double Envelope::hammer

Intensity of hammer noise.

Definition at line 52 of file synthesizer.h.

double Envelope::release

Release rate.

Definition at line 51 of file synthesizer.h.

double Envelope::sustain

Sustain level.

Definition at line 50 of file synthesizer.h.

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

• /home/hinrichsen/Dokumente/Aktuell/EPT/Entropy-Piano-Tuner/core/audio/player/synthesizer.h
• /home/hinrichsen/Dokumente/Aktuell/EPT/Entropy-Piano-Tuner/core/audio/player/synthesizer.cpp