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FLateReflections generates the long tail reverb of an input audio signal using a relatively fast algorithm using all pass filter delay lines. It supports 1 or 2 channel input and always produces 2 channel output.
| Name | FLateReflectionsFast |
| Type | class |
| Header File | /Engine/Source/Runtime/SignalProcessing/Public/DSP/LateReflectionsFast.h |
| Include Path | #include "DSP/LateReflectionsFast.h" |
Syntax
class FLateReflectionsFast
Constructors
| Name | Remarks | Include Path | Unreal Specifiers |
|---|---|---|---|
FLateReflectionsFast
(
float InSampleRate, |
InMaxNumInternalBufferSamples sets the maximum possible number of samples in an internal buffer. | DSP/LateReflectionsFast.h |
Destructors
| Name | Remarks | Include Path | Unreal Specifiers |
|---|---|---|---|
~FLateReflectionsFast() |
DSP/LateReflectionsFast.h |
Constants
| Name | Type | Remarks | Include Path |
|---|---|---|---|
| DefaultSettings | const FLateReflectionsFastSettings | DSP/LateReflectionsFast.h | |
| MaxBandwidth | const float | DSP/LateReflectionsFast.h | |
| MaxDampening | const float | DSP/LateReflectionsFast.h | |
| MaxDecay | const float | DSP/LateReflectionsFast.h | |
| MaxDensity | const float | DSP/LateReflectionsFast.h | |
| MaxDiffusion | const float | DSP/LateReflectionsFast.h | |
| MaxLateDelayMsec | const float | Limits on settings. | DSP/LateReflectionsFast.h |
| MaxLateGainDB | const float | DSP/LateReflectionsFast.h | |
| MinBandwidth | const float | DSP/LateReflectionsFast.h | |
| MinDampening | const float | DSP/LateReflectionsFast.h | |
| MinDecay | const float | DSP/LateReflectionsFast.h | |
| MinDensity | const float | DSP/LateReflectionsFast.h | |
| MinDiffusion | const float | DSP/LateReflectionsFast.h | |
| MinLateDelayMsec | const float | DSP/LateReflectionsFast.h | |
| PresetSampleRate | const int32 | Sample rate used for hard-coded delay line values. | DSP/LateReflectionsFast.h |
Variables
Protected
| Name | Type | Remarks | Include Path | Unreal Specifiers |
|---|---|---|---|---|
| APF1 | TUniquePtr< FLongDelayAPF > | DSP/LateReflectionsFast.h | ||
| APF2 | TUniquePtr< FLongDelayAPF > | DSP/LateReflectionsFast.h | ||
| APF3 | TUniquePtr< FLongDelayAPF > | DSP/LateReflectionsFast.h | ||
| APF4 | TUniquePtr< FLongDelayAPF > | DSP/LateReflectionsFast.h | ||
| Gain | float | DSP/LateReflectionsFast.h | ||
| InputLPF | TUniquePtr< FBufferOnePoleLPF > | Input diffusion. | DSP/LateReflectionsFast.h | |
| LeftDelayModSamples | FAlignedFloatBuffer | Buffer for delay modulation of left and right plates. | DSP/LateReflectionsFast.h | |
| LeftPlate | TUniquePtr< FLateReflectionsPlate > | The plates. | DSP/LateReflectionsFast.h | |
| LeftPlateDelays | FLateReflectionsPlateDelays | The plate delay data. | DSP/LateReflectionsFast.h | |
| LeftPlateOutputs | FLateReflectionsPlateOutputs | The plate outputs. | DSP/LateReflectionsFast.h | |
| ModulationPhase | float | DSP/LateReflectionsFast.h | ||
| ModulationPhaseIncrement | float | DSP/LateReflectionsFast.h | ||
| ModulationQuadPhase | float | DSP/LateReflectionsFast.h | ||
| NumInternalBufferSamples | int32 | DSP/LateReflectionsFast.h | ||
| PreDelay | TUniquePtr< FIntegerDelay > | A simple pre-delay line to emulate large delays for late-reflections. | DSP/LateReflectionsFast.h | |
| RightDelayModSamples | FAlignedFloatBuffer | DSP/LateReflectionsFast.h | ||
| RightPlate | TUniquePtr< FLateReflectionsPlate > | DSP/LateReflectionsFast.h | ||
| RightPlateDelays | FLateReflectionsPlateDelays | DSP/LateReflectionsFast.h | ||
| RightPlateOutputs | FLateReflectionsPlateOutputs | DSP/LateReflectionsFast.h | ||
| SampleRate | float | DSP/LateReflectionsFast.h | ||
| Settings | FLateReflectionsFastSettings | Current parameter settings of reverb. | DSP/LateReflectionsFast.h | |
| WorkBufferA | FAlignedFloatBuffer | DSP/LateReflectionsFast.h | ||
| WorkBufferB | FAlignedFloatBuffer | DSP/LateReflectionsFast.h | ||
| WorkBufferC | FAlignedFloatBuffer | DSP/LateReflectionsFast.h |
Functions
Public
| Name | Remarks | Include Path | Unreal Specifiers |
|---|---|---|---|
void FlushAudio() |
Flush internal audio to silence. | DSP/LateReflectionsFast.h | |
void ProcessAudio
(
const FAlignedFloatBuffer& InSamples, |
Create reverberation in OutSamples based upon InSamples. | DSP/LateReflectionsFast.h | |
void SetSettings
(
const FLateReflectionsFastSettings& InSettings |
Copies the reverb settings internally, clamps the internal copy and applies the clamped settings. | DSP/LateReflectionsFast.h |
Static
| Name | Remarks | Include Path | Unreal Specifiers |
|---|---|---|---|
static void ClampSettings
(
FLateReflectionsFastSettings& InOutSettings |
Alters settings to ensure they are within acceptable ranges. | DSP/LateReflectionsFast.h |