audacia/src/effects/Wahwah.h

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/**********************************************************************
Audacity: A Digital Audio Editor
Wahwah
Effect programming:
Nasca Octavian Paul (Paul Nasca)
UI programming:
Dominic Mazzoni (with the help of wxDesigner)
Vaughan Johnson (Preview)
**********************************************************************/
#ifndef __AUDACITY_EFFECT_WAHWAH__
#define __AUDACITY_EFFECT_WAHWAH__
#include "Effect.h"
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class wxSlider;
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class wxTextCtrl;
class ShuttleGui;
class EffectWahwahState
{
public:
float samplerate;
double depth;
double freqofs;
double phase;
double outgain;
double lfoskip;
unsigned long skipcount;
double xn1, xn2, yn1, yn2;
double b0, b1, b2, a0, a1, a2;
};
class EffectWahwah final : public Effect
{
public:
static const ComponentInterfaceSymbol Symbol;
EffectWahwah();
virtual ~EffectWahwah();
// ComponentInterface implementation
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ComponentInterfaceSymbol GetSymbol() override;
TranslatableString GetDescription() override;
ManualPageID ManualPage() override;
Automation: AudacityCommand This is a squash of 50 commits. This merges the capabilities of BatchCommands and Effects using a new AudacityCommand class. AudacityCommand provides one function to specify the parameters, and then we leverage that one function in automation, whether by chains, mod-script-pipe or (future) Nyquist. - Now have AudacityCommand which is using the same mechanism as Effect - Has configurable parameters - Has data-entry GUI (built using shuttle GUI) - Registers with PluginManager. - Menu commands now provided in chains, and to python batch. - Tested with Zoom Toggle. - ShuttleParams now can set, get, set defaults, validate and specify the parameters. - Bugfix: Don't overwrite values with defaults first time out. - Add DefineParams function for all built-in effects. - Extend CommandContext to carry output channels for results. We abuse EffectsManager. It handles both Effects and AudacityCommands now. In time an Effect should become a special case of AudacityCommand and we'll split and rename the EffectManager class. - Don't use 'default' as a parameter name. - Massive renaming for CommandDefinitionInterface - EffectIdentInterface becomes EffectDefinitionInterface - EffectAutomationParameters becomes CommandAutomationParameters - PluginType is now a bit field. This way we can search for related types at the same time. - Most old batch commands made into AudacityCommands. The ones that weren't are for a reason. They are used by mod-script-pipe to carry commands and responses across from a non-GUI thread to the GUI thread. - Major tidy up of ScreenshotCommand - Reworking of SelectCommand - GetPreferenceCommand and SetPreferenceCommand - GetTrackInfo and SetTrackInfo - GetInfoCommand - Help, Open, Save, Import and Export commands. - Removed obsolete commands ExecMenu, GetProjectInfo and SetProjectInfo which are now better handled by other commands. - JSONify "GetInfo: Commands" output, i.e. commas in the right places. - General work on better Doxygen. - Lyrics -> LyricsPanel - Meter -> MeterPanel - Updated Linux makefile. - Scripting commands added into Extra menu. - Distinct names for previously duplicated find-clipping parameters. - Fixed longstanding error with erroneous status field number which previously caused an ASSERT in debug. - Sensible formatting of numbers in Chains, 0.1 not 0.1000000000137
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// EffectDefinitionInterface implementation
EffectType GetType() override;
bool SupportsRealtime() override;
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// EffectClientInterface implementation
unsigned GetAudioInCount() override;
unsigned GetAudioOutCount() override;
bool ProcessInitialize(sampleCount totalLen, ChannelNames chanMap = NULL) override;
size_t ProcessBlock(float **inBlock, float **outBlock, size_t blockLen) override;
bool RealtimeInitialize() override;
bool RealtimeAddProcessor(unsigned numChannels, float sampleRate) override;
bool RealtimeFinalize() override;
size_t RealtimeProcess(int group,
float **inbuf,
float **outbuf,
size_t numSamples) override;
Automation: AudacityCommand This is a squash of 50 commits. This merges the capabilities of BatchCommands and Effects using a new AudacityCommand class. AudacityCommand provides one function to specify the parameters, and then we leverage that one function in automation, whether by chains, mod-script-pipe or (future) Nyquist. - Now have AudacityCommand which is using the same mechanism as Effect - Has configurable parameters - Has data-entry GUI (built using shuttle GUI) - Registers with PluginManager. - Menu commands now provided in chains, and to python batch. - Tested with Zoom Toggle. - ShuttleParams now can set, get, set defaults, validate and specify the parameters. - Bugfix: Don't overwrite values with defaults first time out. - Add DefineParams function for all built-in effects. - Extend CommandContext to carry output channels for results. We abuse EffectsManager. It handles both Effects and AudacityCommands now. In time an Effect should become a special case of AudacityCommand and we'll split and rename the EffectManager class. - Don't use 'default' as a parameter name. - Massive renaming for CommandDefinitionInterface - EffectIdentInterface becomes EffectDefinitionInterface - EffectAutomationParameters becomes CommandAutomationParameters - PluginType is now a bit field. This way we can search for related types at the same time. - Most old batch commands made into AudacityCommands. The ones that weren't are for a reason. They are used by mod-script-pipe to carry commands and responses across from a non-GUI thread to the GUI thread. - Major tidy up of ScreenshotCommand - Reworking of SelectCommand - GetPreferenceCommand and SetPreferenceCommand - GetTrackInfo and SetTrackInfo - GetInfoCommand - Help, Open, Save, Import and Export commands. - Removed obsolete commands ExecMenu, GetProjectInfo and SetProjectInfo which are now better handled by other commands. - JSONify "GetInfo: Commands" output, i.e. commas in the right places. - General work on better Doxygen. - Lyrics -> LyricsPanel - Meter -> MeterPanel - Updated Linux makefile. - Scripting commands added into Extra menu. - Distinct names for previously duplicated find-clipping parameters. - Fixed longstanding error with erroneous status field number which previously caused an ASSERT in debug. - Sensible formatting of numbers in Chains, 0.1 not 0.1000000000137
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bool DefineParams( ShuttleParams & S ) override;
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bool GetAutomationParameters(CommandParameters & parms) override;
bool SetAutomationParameters(CommandParameters & parms) override;
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// Effect implementation
void PopulateOrExchange(ShuttleGui & S) override;
bool TransferDataToWindow() override;
bool TransferDataFromWindow() override;
private:
// EffectWahwah implementation
void InstanceInit(EffectWahwahState & data, float sampleRate);
size_t InstanceProcess(EffectWahwahState & data, float **inBlock, float **outBlock, size_t blockLen);
void OnFreqSlider(wxCommandEvent & evt);
void OnPhaseSlider(wxCommandEvent & evt);
void OnDepthSlider(wxCommandEvent & evt);
void OnResonanceSlider(wxCommandEvent & evt);
void OnFreqOffSlider(wxCommandEvent & evt);
void OnGainSlider(wxCommandEvent & evt);
void OnFreqText(wxCommandEvent & evt);
void OnPhaseText(wxCommandEvent & evt);
void OnDepthText(wxCommandEvent & evt);
void OnResonanceText(wxCommandEvent & evt);
void OnFreqOffText(wxCommandEvent & evt);
void OnGainText(wxCommandEvent & evt);
private:
EffectWahwahState mMaster;
std::vector<EffectWahwahState> mSlaves;
/* Parameters:
mFreq - LFO frequency
mPhase - LFO startphase in RADIANS - useful for stereo WahWah
mDepth - Wah depth
mRes - Resonance
mFreqOfs - Wah frequency offset
mOutGain - output gain
!!!!!!!!!!!!! IMPORTANT!!!!!!!!! :
mDepth and mFreqOfs should be from 0(min) to 1(max) !
mRes should be greater than 0 ! */
double mFreq;
double mPhase;
int mDepth;
double mRes;
int mFreqOfs;
double mOutGain;
wxTextCtrl *mFreqT;
wxTextCtrl *mPhaseT;
wxTextCtrl *mDepthT;
wxTextCtrl *mResT;
wxTextCtrl *mFreqOfsT;
wxTextCtrl *mOutGainT;
wxSlider *mFreqS;
wxSlider *mPhaseS;
wxSlider *mDepthS;
wxSlider *mResS;
wxSlider *mFreqOfsS;
wxSlider *mOutGainS;
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DECLARE_EVENT_TABLE()
};
#endif