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0c4ee1466f
- Audio bus is a new asset type that allows audio to be routed around to effects, etc. - Extracts the underlying logic from source buses and changes source bus semantics to be a sonification of audio buses. Audio buses do not render to be audible on their own. - Main use-case is side-chaining audio effects (e.g. side chain compression, auto-wah filters, etc). #rb Ethan.Geller, Rob.Gay, Maxwell.Hayes, Phil.Popp, Ryan.Mangin #jira UE-88494 #ROBOMERGE-SOURCE: CL 11449969 via CL 11450113 #ROBOMERGE-BOT: (v654-11333218) [CL 11450145 by aaron mcleran in Main branch]
61 lines
1.4 KiB
C++
61 lines
1.4 KiB
C++
// Copyright Epic Games, Inc. All Rights Reserved.
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#pragma once
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#include "CoreMinimal.h"
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#include "DSP/Osc.h"
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#include "DSP/MultithreadedPatching.h"
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namespace Audio
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{
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// Ring modulation effect
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// https://en.wikipedia.org/wiki/Ring_modulation
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class SIGNALPROCESSING_API FRingModulation
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{
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public:
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// Constructor
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FRingModulation();
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// Destructor
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~FRingModulation();
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// Initialize the equalizer
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void Init(const float InSampleRate, const int32 InNumChannels);
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// The type of modulation
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void SetModulatorWaveType(const EOsc::Type InType);
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// Set the ring modulation frequency
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void SetModulationFrequency(const float InModulationFrequency);
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// Set the ring modulation depth
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void SetModulationDepth(const float InModulationDepth);
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// Sets that the modulation buffer is external
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void SetExternalPatchSource(Audio::FPatchOutputStrongPtr InPatch);
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// Set the dry level of the ring modulation
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void SetDryLevel(const float InDryLevel) { DryLevel = InDryLevel; }
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// Set the wet level of the ring modulation
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void SetWetLevel(const float InWetLevel);
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// Process audio buffer
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void ProcessAudio(const float* InBuffer, const int32 InNumSamples, float* OutBuffer);
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private:
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void UpdateScale();
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Audio::FPatchOutputStrongPtr Patch;
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Audio::FOsc Osc;
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float ModulationFrequency;
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float ModulationDepth;
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float DryLevel;
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float WetLevel;
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float Scale;
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int32 NumChannels;
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TArray<float> ModulationBuffer;
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};
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}
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