776 lines
23 KiB
C++
776 lines
23 KiB
C++
/**********************************************************************
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Audacity: A Digital Audio Editor
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Audacity(R) is copyright (c) 1999-2013 Audacity Team.
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License: GPL v2. See License.txt.
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ChangePitch.cpp
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Vaughan Johnson, Dominic Mazzoni, Steve Daulton
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******************************************************************//**
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\file ChangePitch.cpp
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\brief Change Pitch effect provides raising or lowering
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the pitch without changing the tempo.
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*//*******************************************************************/
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#include "../Audacity.h" // for USE_SOUNDTOUCH
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#if USE_SOUNDTOUCH
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#include "ChangePitch.h"
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#include <float.h>
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#include <math.h>
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#include <wx/intl.h>
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#include <wx/valtext.h>
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#include "../PitchName.h"
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#include "../ShuttleGui.h"
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#include "../Spectrum.h"
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#include "../WaveTrack.h"
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#include "../widgets/valnum.h"
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#include "TimeWarper.h"
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enum {
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ID_PercentChange = 10000,
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ID_FromPitch,
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ID_FromOctave,
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ID_ToPitch,
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ID_ToOctave,
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ID_SemitonesChange,
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ID_FromFrequency,
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ID_ToFrequency
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};
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// Soundtouch is not reasonable below -99% or above 3000%.
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// Define keys, defaults, minimums, and maximums for the effect parameters
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//
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// Name Type Key Def Min Max Scale
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Param( Percentage, double, XO("Percentage"), 0.0, -99.0, 3000.0, 1 );
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// We warp the slider to go up to 400%, but user can enter up to 3000%
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static const double kSliderMax = 100.0; // warped above zero to actually go up to 400%
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static const double kSliderWarp = 1.30105; // warp power takes max from 100 to 400.
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// EffectChangePitch
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BEGIN_EVENT_TABLE(EffectChangePitch, wxEvtHandler)
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EVT_CHOICE(ID_FromPitch, EffectChangePitch::OnChoice_FromPitch)
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EVT_TEXT(ID_FromOctave, EffectChangePitch::OnSpin_FromOctave)
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EVT_CHOICE(ID_ToPitch, EffectChangePitch::OnChoice_ToPitch)
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EVT_TEXT(ID_ToOctave, EffectChangePitch::OnSpin_ToOctave)
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EVT_TEXT(ID_SemitonesChange, EffectChangePitch::OnText_SemitonesChange)
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EVT_TEXT(ID_FromFrequency, EffectChangePitch::OnText_FromFrequency)
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EVT_TEXT(ID_ToFrequency, EffectChangePitch::OnText_ToFrequency)
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EVT_TEXT(ID_PercentChange, EffectChangePitch::OnText_PercentChange)
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EVT_SLIDER(ID_PercentChange, EffectChangePitch::OnSlider_PercentChange)
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END_EVENT_TABLE()
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EffectChangePitch::EffectChangePitch()
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{
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m_dPercentChange = DEF_Percentage;
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m_dSemitonesChange = 0.0;
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m_dStartFrequency = 0.0; // 0.0 => uninitialized
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m_bLoopDetect = false;
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// NULL out these control members because there are some cases where the
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// event table handlers get called during this method, and those handlers that
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// can cause trouble check for NULL.
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m_pChoice_FromPitch = NULL;
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m_pSpin_FromOctave = NULL;
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m_pChoice_ToPitch = NULL;
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m_pSpin_ToOctave = NULL;
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m_pTextCtrl_SemitonesChange = NULL;
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m_pTextCtrl_FromFrequency = NULL;
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m_pTextCtrl_ToFrequency = NULL;
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m_pTextCtrl_PercentChange = NULL;
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m_pSlider_PercentChange = NULL;
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SetLinearEffectFlag(true);
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}
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EffectChangePitch::~EffectChangePitch()
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{
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}
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// IdentInterface implementation
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wxString EffectChangePitch::GetSymbol()
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{
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return CHANGEPITCH_PLUGIN_SYMBOL;
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}
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wxString EffectChangePitch::GetDescription()
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{
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return XO("Change the pitch of a track without changing its tempo");
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}
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// EffectIdentInterface implementation
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EffectType EffectChangePitch::GetType()
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{
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return EffectTypeProcess;
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}
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// EffectClientInterface implementation
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bool EffectChangePitch::GetAutomationParameters(EffectAutomationParameters & parms)
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{
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parms.Write(KEY_Percentage, m_dPercentChange);
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return true;
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}
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bool EffectChangePitch::SetAutomationParameters(EffectAutomationParameters & parms)
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{
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// Vaughan, 2013-06: Long lost to history, I don't see why m_dPercentChange was chosen to be shuttled.
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// Only m_dSemitonesChange is used in Process().
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ReadAndVerifyDouble(Percentage);
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m_dPercentChange = Percentage;
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Calc_SemitonesChange_fromPercentChange();
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return true;
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}
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bool EffectChangePitch::LoadFactoryDefaults()
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{
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DeduceFrequencies();
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return Effect::LoadFactoryDefaults();
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}
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// Effect implementation
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bool EffectChangePitch::Init()
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{
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mSoundTouch.reset();
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return true;
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}
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bool EffectChangePitch::Process()
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{
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mSoundTouch = std::make_unique<SoundTouch>();
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SetTimeWarper(std::make_unique<IdentityTimeWarper>());
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mSoundTouch->setPitchSemiTones((float)(m_dSemitonesChange));
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#ifdef USE_MIDI
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// Note: m_dSemitonesChange is private to ChangePitch because it only
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// needs to pass it along to mSoundTouch (above). I added mSemitones
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// to SoundTouchEffect (the super class) to convey this value
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// to process Note tracks. This approach minimizes changes to existing
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// code, but it would be cleaner to change all m_dSemitonesChange to
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// mSemitones, make mSemitones exist with or without USE_MIDI, and
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// eliminate the next line:
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mSemitones = m_dSemitonesChange;
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#endif
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return EffectSoundTouch::Process();
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}
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bool EffectChangePitch::CheckWhetherSkipEffect()
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{
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return (m_dPercentChange == 0.0);
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}
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void EffectChangePitch::PopulateOrExchange(ShuttleGui & S)
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{
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DeduceFrequencies(); // Set frequency-related control values based on sample.
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wxArrayString pitch;
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pitch.Add(wxT("C"));
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pitch.Add(wxT("C#/Db"));
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pitch.Add(wxT("D"));
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pitch.Add(wxT("D#/Eb"));
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pitch.Add(wxT("E"));
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pitch.Add(wxT("F"));
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pitch.Add(wxT("F#/Gb"));
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pitch.Add(wxT("G"));
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pitch.Add(wxT("G#/Ab"));
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pitch.Add(wxT("A"));
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pitch.Add(wxT("A#/Bb"));
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pitch.Add(wxT("B"));
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S.SetBorder(5);
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S.StartVerticalLay(0);
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{
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S.StartVerticalLay();
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{
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S.AddTitle(_("Change Pitch without Changing Tempo"));
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S.AddTitle(
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wxString::Format(_("Estimated Start Pitch: %s%d (%.3f Hz)"),
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pitch[m_nFromPitch].c_str(), m_nFromOctave, m_FromFrequency));
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}
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S.EndVerticalLay();
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/* i18n-hint: (noun) Musical pitch.*/
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S.StartStatic(_("Pitch"));
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{
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S.StartMultiColumn(6, wxALIGN_CENTER); // 6 controls, because each AddChoice adds a wxStaticText and a wxChoice.
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{
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m_pChoice_FromPitch = S.Id(ID_FromPitch).AddChoice(_("from"), wxT(""), &pitch);
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m_pChoice_FromPitch->SetName(_("from"));
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m_pChoice_FromPitch->SetSizeHints(80, -1);
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m_pSpin_FromOctave = S.Id(ID_FromOctave).AddSpinCtrl(wxT(""), m_nFromOctave, INT_MAX, INT_MIN);
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m_pSpin_FromOctave->SetName(_("from Octave"));
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m_pSpin_FromOctave->SetSizeHints(50, -1);
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m_pChoice_ToPitch = S.Id(ID_ToPitch).AddChoice(_("to"), wxT(""), &pitch);
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m_pChoice_ToPitch->SetName(_("to"));
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m_pChoice_ToPitch->SetSizeHints(80, -1);
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m_pSpin_ToOctave =
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S.Id(ID_ToOctave).AddSpinCtrl(wxT(""), m_nToOctave, INT_MAX, INT_MIN);
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m_pSpin_ToOctave->SetName(_("to Octave"));
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m_pSpin_ToOctave->SetSizeHints(50, -1);
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}
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S.EndMultiColumn();
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S.StartHorizontalLay(wxALIGN_CENTER);
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{
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FloatingPointValidator<double> vldSemitones(2, &m_dSemitonesChange, NUM_VAL_TWO_TRAILING_ZEROES);
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m_pTextCtrl_SemitonesChange =
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S.Id(ID_SemitonesChange).AddTextBox(_("Semitones (half-steps):"), wxT(""), 12);
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m_pTextCtrl_SemitonesChange->SetName(_("Semitones (half-steps)"));
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m_pTextCtrl_SemitonesChange->SetValidator(vldSemitones);
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}
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S.EndHorizontalLay();
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}
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S.EndStatic();
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S.StartStatic(_("Frequency"));
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{
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S.StartMultiColumn(5, wxALIGN_CENTER); // 5, because AddTextBox adds a wxStaticText and a wxTextCtrl.
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{
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FloatingPointValidator<double> vldFromFrequency(3, &m_FromFrequency, NUM_VAL_THREE_TRAILING_ZEROES);
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vldFromFrequency.SetMin(0.0);
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m_pTextCtrl_FromFrequency = S.Id(ID_FromFrequency).AddTextBox(_("from"), wxT(""), 12);
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m_pTextCtrl_FromFrequency->SetName(_("from (Hz)"));
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m_pTextCtrl_FromFrequency->SetValidator(vldFromFrequency);
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FloatingPointValidator<double> vldToFrequency(3, &m_ToFrequency, NUM_VAL_THREE_TRAILING_ZEROES);
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vldToFrequency.SetMin(0.0);
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m_pTextCtrl_ToFrequency = S.Id(ID_ToFrequency).AddTextBox(_("to"), wxT(""), 12);
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m_pTextCtrl_ToFrequency->SetName(_("to (Hz)"));
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m_pTextCtrl_ToFrequency->SetValidator(vldToFrequency);
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S.AddUnits(_("Hz"));
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}
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S.EndMultiColumn();
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S.StartHorizontalLay(wxALIGN_CENTER);
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{
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FloatingPointValidator<double> vldPercentage(3, &m_dPercentChange, NUM_VAL_THREE_TRAILING_ZEROES);
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vldPercentage.SetRange(MIN_Percentage, MAX_Percentage);
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m_pTextCtrl_PercentChange = S.Id(ID_PercentChange).AddTextBox(_("Percent Change:"), wxT(""), 12);
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m_pTextCtrl_PercentChange->SetValidator(vldPercentage);
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}
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S.EndHorizontalLay();
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S.StartHorizontalLay(wxEXPAND);
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{
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S.SetStyle(wxSL_HORIZONTAL);
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m_pSlider_PercentChange = S.Id(ID_PercentChange)
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.AddSlider(wxT(""), 0, (int)kSliderMax, (int)MIN_Percentage);
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m_pSlider_PercentChange->SetName(_("Percent Change"));
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}
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S.EndHorizontalLay();
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}
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S.EndStatic();
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}
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S.EndVerticalLay();
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return;
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}
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bool EffectChangePitch::TransferDataToWindow()
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{
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m_bLoopDetect = true;
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if (!mUIParent->TransferDataToWindow())
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{
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return false;
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}
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Calc_SemitonesChange_fromPercentChange();
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Calc_ToPitch(); // Call *after* m_dSemitonesChange is updated.
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Calc_ToFrequency();
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Calc_ToOctave(); // Call after Calc_ToFrequency().
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Update_Choice_FromPitch();
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Update_Choice_ToPitch();
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Update_Spin_FromOctave();
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Update_Spin_ToOctave();
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Update_Text_SemitonesChange();
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Update_Text_FromFrequency();
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Update_Text_ToFrequency();
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Update_Text_PercentChange();
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Update_Slider_PercentChange();
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m_bLoopDetect = false;
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return true;
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}
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bool EffectChangePitch::TransferDataFromWindow()
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{
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if (!mUIParent->Validate() || !mUIParent->TransferDataFromWindow())
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{
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return false;
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}
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// from/to pitch controls
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m_nFromPitch = m_pChoice_FromPitch->GetSelection();
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m_nFromOctave = m_pSpin_FromOctave->GetValue();
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m_nToPitch = m_pChoice_ToPitch->GetSelection();
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// No need to update Slider_PercentChange here because TextCtrl_PercentChange
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// always tracks it & is more precise (decimal points).
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return true;
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}
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// EffectChangePitch implementation
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// Deduce m_FromFrequency from the samples at the beginning of
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// the selection. Then set some other params accordingly.
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void EffectChangePitch::DeduceFrequencies()
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{
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// As a neat trick, attempt to get the frequency of the note at the
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// beginning of the selection.
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SelectedTrackListOfKindIterator iter(Track::Wave, mTracks);
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WaveTrack *track = (WaveTrack *) iter.First();
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if (track) {
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double rate = track->GetRate();
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// Auto-size window -- high sample rates require larger windowSize.
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// Aim for around 2048 samples at 44.1 kHz (good down to about 100 Hz).
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// To detect single notes, analysis period should be about 0.2 seconds.
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// windowSize must be a power of 2.
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int windowSize = wxRound(pow(2.0, floor((log(rate / 20.0)/log(2.0)) + 0.5)));
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// windowSize < 256 too inaccurate
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windowSize = (windowSize > 256)? windowSize : 256;
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// we want about 0.2 seconds to catch the first note.
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// number of windows rounded to nearest integer >= 1.
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int numWindows = wxRound((double)(rate / (5.0f * windowSize)));
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numWindows = (numWindows > 0)? numWindows : 1;
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double trackStart = track->GetStartTime();
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double t0 = mT0 < trackStart? trackStart: mT0;
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sampleCount start = track->TimeToLongSamples(t0);
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int analyzeSize = windowSize * numWindows;
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float * buffer;
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buffer = new float[analyzeSize];
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float * freq;
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freq = new float[windowSize/2];
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float * freqa;
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freqa = new float[windowSize/2];
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int i, j, argmax;
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int lag;
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for(j=0; j<windowSize/2; j++)
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freqa[j] = 0;
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track->Get((samplePtr) buffer, floatSample, start, analyzeSize);
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for(i=0; i<numWindows; i++) {
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ComputeSpectrum(buffer+i*windowSize, windowSize,
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windowSize, rate, freq, true);
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for(j=0; j<windowSize/2; j++)
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freqa[j] += freq[j];
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}
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argmax=0;
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for(j=1; j<windowSize/2; j++)
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if (freqa[j] > freqa[argmax])
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argmax = j;
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delete [] freq;
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delete [] freqa;
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delete [] buffer;
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lag = (windowSize/2 - 1) - argmax;
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m_dStartFrequency = rate / lag;
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}
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double dFromMIDInote = FreqToMIDInote(m_dStartFrequency);
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double dToMIDInote = dFromMIDInote + m_dSemitonesChange;
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m_nFromPitch = PitchIndex(dFromMIDInote);
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m_nFromOctave = PitchOctave(dFromMIDInote);
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m_nToPitch = PitchIndex(dToMIDInote);
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m_nToOctave = PitchOctave(dToMIDInote);
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m_FromFrequency = m_dStartFrequency;
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Calc_PercentChange();
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Calc_ToFrequency();
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}
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// calculations
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void EffectChangePitch::Calc_ToPitch()
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{
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int nSemitonesChange =
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(int)(m_dSemitonesChange + ((m_dSemitonesChange < 0.0) ? -0.5 : 0.5));
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m_nToPitch = (m_nFromPitch + nSemitonesChange) % 12;
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if (m_nToPitch < 0)
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m_nToPitch += 12;
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}
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void EffectChangePitch::Calc_ToOctave()
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{
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m_nToOctave = PitchOctave(FreqToMIDInote(m_ToFrequency));
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}
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void EffectChangePitch::Calc_SemitonesChange_fromPitches()
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{
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m_dSemitonesChange =
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PitchToMIDInote(m_nToPitch, m_nToOctave) - PitchToMIDInote(m_nFromPitch, m_nFromOctave);
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}
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void EffectChangePitch::Calc_SemitonesChange_fromPercentChange()
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{
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// Use m_dPercentChange rather than m_FromFrequency & m_ToFrequency, because
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// they start out uninitialized, but m_dPercentChange is always valid.
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m_dSemitonesChange = (12.0 * log((100.0 + m_dPercentChange) / 100.0)) / log(2.0);
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}
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void EffectChangePitch::Calc_ToFrequency()
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{
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m_ToFrequency = (m_FromFrequency * (100.0 + m_dPercentChange)) / 100.0;
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}
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void EffectChangePitch::Calc_PercentChange()
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{
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m_dPercentChange = 100.0 * (pow(2.0, (m_dSemitonesChange / 12.0)) - 1.0);
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}
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// handlers
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void EffectChangePitch::OnChoice_FromPitch(wxCommandEvent & WXUNUSED(evt))
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{
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if (m_bLoopDetect)
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return;
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m_nFromPitch = m_pChoice_FromPitch->GetSelection();
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m_FromFrequency = PitchToFreq(m_nFromPitch, m_nFromOctave);
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Calc_ToPitch();
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Calc_ToFrequency();
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Calc_ToOctave(); // Call after Calc_ToFrequency().
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m_bLoopDetect = true;
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{
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Update_Choice_ToPitch();
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Update_Spin_ToOctave();
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Update_Text_FromFrequency();
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Update_Text_ToFrequency();
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}
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m_bLoopDetect = false;
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}
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void EffectChangePitch::OnSpin_FromOctave(wxCommandEvent & WXUNUSED(evt))
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{
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if (m_bLoopDetect)
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return;
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m_nFromOctave = m_pSpin_FromOctave->GetValue();
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//vvv If I change this code to not keep semitones and percent constant,
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// will need validation code as in OnSpin_ToOctave.
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m_FromFrequency = PitchToFreq(m_nFromPitch, m_nFromOctave);
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Calc_ToFrequency();
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Calc_ToOctave(); // Call after Calc_ToFrequency().
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m_bLoopDetect = true;
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{
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|
Update_Spin_ToOctave();
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|
Update_Text_FromFrequency();
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|
Update_Text_ToFrequency();
|
|
}
|
|
m_bLoopDetect = false;
|
|
}
|
|
|
|
void EffectChangePitch::OnChoice_ToPitch(wxCommandEvent & WXUNUSED(evt))
|
|
{
|
|
if (m_bLoopDetect)
|
|
return;
|
|
|
|
m_nToPitch = m_pChoice_ToPitch->GetSelection();
|
|
|
|
Calc_SemitonesChange_fromPitches();
|
|
Calc_PercentChange(); // Call *after* m_dSemitonesChange is updated.
|
|
Calc_ToFrequency(); // Call *after* m_dPercentChange is updated.
|
|
|
|
m_bLoopDetect = true;
|
|
{
|
|
Update_Text_SemitonesChange();
|
|
Update_Text_ToFrequency();
|
|
Update_Text_PercentChange();
|
|
Update_Slider_PercentChange();
|
|
}
|
|
m_bLoopDetect = false;
|
|
}
|
|
|
|
void EffectChangePitch::OnSpin_ToOctave(wxCommandEvent & WXUNUSED(evt))
|
|
{
|
|
if (m_bLoopDetect)
|
|
return;
|
|
|
|
int nNewValue = m_pSpin_ToOctave->GetValue();
|
|
// Validation: Rather than set a range for octave numbers, enforce a range that
|
|
// keeps m_dPercentChange above -99%, per Soundtouch constraints.
|
|
if ((nNewValue + 3) < m_nFromOctave)
|
|
{
|
|
::wxBell();
|
|
m_pSpin_ToOctave->SetValue(m_nFromOctave - 3);
|
|
return;
|
|
}
|
|
m_nToOctave = nNewValue;
|
|
|
|
m_ToFrequency = PitchToFreq(m_nToPitch, m_nToOctave);
|
|
|
|
Calc_SemitonesChange_fromPitches();
|
|
Calc_PercentChange(); // Call *after* m_dSemitonesChange is updated.
|
|
|
|
m_bLoopDetect = true;
|
|
{
|
|
Update_Text_SemitonesChange();
|
|
Update_Text_ToFrequency();
|
|
Update_Text_PercentChange();
|
|
Update_Slider_PercentChange();
|
|
}
|
|
m_bLoopDetect = false;
|
|
}
|
|
|
|
void EffectChangePitch::OnText_SemitonesChange(wxCommandEvent & WXUNUSED(evt))
|
|
{
|
|
if (m_bLoopDetect)
|
|
return;
|
|
|
|
if (!m_pTextCtrl_SemitonesChange->GetValidator()->TransferFromWindow())
|
|
{
|
|
EnableApply(false);
|
|
return;
|
|
}
|
|
|
|
Calc_PercentChange();
|
|
Calc_ToFrequency(); // Call *after* m_dPercentChange is updated.
|
|
Calc_ToPitch();
|
|
Calc_ToOctave(); // Call after Calc_ToFrequency().
|
|
|
|
m_bLoopDetect = true;
|
|
{
|
|
Update_Choice_ToPitch();
|
|
Update_Spin_ToOctave();
|
|
Update_Text_ToFrequency();
|
|
Update_Text_PercentChange();
|
|
Update_Slider_PercentChange();
|
|
}
|
|
m_bLoopDetect = false;
|
|
|
|
// If m_dSemitonesChange is a big enough negative, we can go to or below 0 freq.
|
|
// If m_dSemitonesChange is a big enough positive, we can go to 1.#INF (Windows) or inf (Linux).
|
|
// But practically, these are best limits for Soundtouch.
|
|
bool bIsGoodValue = (m_dSemitonesChange > -80.0) && (m_dSemitonesChange <= 60.0);
|
|
EnableApply(bIsGoodValue);
|
|
}
|
|
|
|
void EffectChangePitch::OnText_FromFrequency(wxCommandEvent & WXUNUSED(evt))
|
|
{
|
|
if (m_bLoopDetect)
|
|
return;
|
|
|
|
// Empty string causes unpredictable results with ToDouble() and later calculations.
|
|
// Non-positive frequency makes no sense, but user might still be editing,
|
|
// so it's not an error, but we do not want to update the values/controls.
|
|
if (!m_pTextCtrl_FromFrequency->GetValidator()->TransferFromWindow())
|
|
{
|
|
EnableApply(false);
|
|
return;
|
|
}
|
|
|
|
double newFromMIDInote = FreqToMIDInote(m_FromFrequency);
|
|
m_nFromPitch = PitchIndex(newFromMIDInote);
|
|
m_nFromOctave = PitchOctave(newFromMIDInote);
|
|
Calc_ToPitch();
|
|
Calc_ToFrequency();
|
|
Calc_ToOctave(); // Call after Calc_ToFrequency().
|
|
|
|
m_bLoopDetect = true;
|
|
{
|
|
Update_Choice_FromPitch();
|
|
Update_Spin_FromOctave();
|
|
Update_Choice_ToPitch();
|
|
Update_Spin_ToOctave();
|
|
Update_Text_ToFrequency();
|
|
}
|
|
m_bLoopDetect = false;
|
|
|
|
// Success. Make sure OK and Preview are enabled, in case we disabled above during editing.
|
|
EnableApply(true);
|
|
}
|
|
|
|
void EffectChangePitch::OnText_ToFrequency(wxCommandEvent & WXUNUSED(evt))
|
|
{
|
|
if (m_bLoopDetect)
|
|
return;
|
|
|
|
// Empty string causes unpredictable results with ToDouble() and later calculations.
|
|
// Non-positive frequency makes no sense, but user might still be editing,
|
|
// so it's not an error, but we do not want to update the values/controls.
|
|
if (!m_pTextCtrl_ToFrequency->GetValidator()->TransferFromWindow())
|
|
{
|
|
EnableApply(false);
|
|
return;
|
|
}
|
|
|
|
m_dPercentChange = ((m_ToFrequency * 100.0) / m_FromFrequency) - 100.0;
|
|
|
|
Calc_ToOctave(); // Call after Calc_ToFrequency().
|
|
Calc_SemitonesChange_fromPercentChange();
|
|
Calc_ToPitch(); // Call *after* m_dSemitonesChange is updated.
|
|
|
|
m_bLoopDetect = true;
|
|
{
|
|
Update_Choice_ToPitch();
|
|
Update_Spin_ToOctave();
|
|
Update_Text_SemitonesChange();
|
|
Update_Text_PercentChange();
|
|
Update_Slider_PercentChange();
|
|
}
|
|
m_bLoopDetect = false;
|
|
|
|
// Success. Make sure OK and Preview are disabled if percent change is out of bounds.
|
|
// Can happen while editing.
|
|
// If the value is good, might also need to re-enable because of above clause.
|
|
bool bIsGoodValue = (m_dPercentChange > MIN_Percentage) && (m_dPercentChange <= MAX_Percentage);
|
|
EnableApply(bIsGoodValue);
|
|
}
|
|
|
|
void EffectChangePitch::OnText_PercentChange(wxCommandEvent & WXUNUSED(evt))
|
|
{
|
|
if (m_bLoopDetect)
|
|
return;
|
|
|
|
if (!m_pTextCtrl_PercentChange->GetValidator()->TransferFromWindow())
|
|
{
|
|
EnableApply(false);
|
|
return;
|
|
}
|
|
|
|
Calc_SemitonesChange_fromPercentChange();
|
|
Calc_ToPitch(); // Call *after* m_dSemitonesChange is updated.
|
|
Calc_ToFrequency();
|
|
Calc_ToOctave(); // Call after Calc_ToFrequency().
|
|
|
|
m_bLoopDetect = true;
|
|
{
|
|
Update_Choice_ToPitch();
|
|
Update_Spin_ToOctave();
|
|
Update_Text_SemitonesChange();
|
|
Update_Text_ToFrequency();
|
|
Update_Slider_PercentChange();
|
|
}
|
|
m_bLoopDetect = false;
|
|
|
|
// Success. Make sure OK and Preview are enabled, in case we disabled above during editing.
|
|
EnableApply(true);
|
|
}
|
|
|
|
void EffectChangePitch::OnSlider_PercentChange(wxCommandEvent & WXUNUSED(evt))
|
|
{
|
|
if (m_bLoopDetect)
|
|
return;
|
|
|
|
m_dPercentChange = (double)(m_pSlider_PercentChange->GetValue());
|
|
// Warp positive values to actually go up faster & further than negatives.
|
|
if (m_dPercentChange > 0.0)
|
|
m_dPercentChange = pow(m_dPercentChange, kSliderWarp);
|
|
|
|
Calc_SemitonesChange_fromPercentChange();
|
|
Calc_ToPitch(); // Call *after* m_dSemitonesChange is updated.
|
|
Calc_ToFrequency();
|
|
Calc_ToOctave(); // Call after Calc_ToFrequency().
|
|
|
|
m_bLoopDetect = true;
|
|
{
|
|
Update_Choice_ToPitch();
|
|
Update_Spin_ToOctave();
|
|
Update_Text_SemitonesChange();
|
|
Update_Text_ToFrequency();
|
|
Update_Text_PercentChange();
|
|
}
|
|
m_bLoopDetect = false;
|
|
}
|
|
|
|
// helper fns for controls
|
|
|
|
void EffectChangePitch::Update_Choice_FromPitch()
|
|
{
|
|
m_pChoice_FromPitch->SetSelection(m_nFromPitch);
|
|
}
|
|
|
|
void EffectChangePitch::Update_Spin_FromOctave()
|
|
{
|
|
m_pSpin_FromOctave->SetValue(m_nFromOctave);
|
|
}
|
|
|
|
void EffectChangePitch::Update_Choice_ToPitch()
|
|
{
|
|
m_pChoice_ToPitch->SetSelection(m_nToPitch);
|
|
}
|
|
|
|
void EffectChangePitch::Update_Spin_ToOctave()
|
|
{
|
|
m_pSpin_ToOctave->SetValue(m_nToOctave);
|
|
}
|
|
|
|
void EffectChangePitch::Update_Text_SemitonesChange()
|
|
{
|
|
m_pTextCtrl_SemitonesChange->GetValidator()->TransferToWindow();
|
|
}
|
|
|
|
void EffectChangePitch::Update_Text_FromFrequency()
|
|
{
|
|
m_pTextCtrl_FromFrequency->GetValidator()->TransferToWindow();
|
|
}
|
|
|
|
void EffectChangePitch::Update_Text_ToFrequency()
|
|
{
|
|
m_pTextCtrl_ToFrequency->GetValidator()->TransferToWindow();
|
|
}
|
|
|
|
void EffectChangePitch::Update_Text_PercentChange()
|
|
{
|
|
m_pTextCtrl_PercentChange->GetValidator()->TransferToWindow();
|
|
}
|
|
|
|
void EffectChangePitch::Update_Slider_PercentChange()
|
|
{
|
|
double unwarped = m_dPercentChange;
|
|
if (unwarped > 0.0)
|
|
// Un-warp values above zero to actually go up to kSliderMax.
|
|
unwarped = pow(m_dPercentChange, (1.0 / kSliderWarp));
|
|
|
|
// Add 0.5 to unwarped so trunc -> round.
|
|
m_pSlider_PercentChange->SetValue((int)(unwarped + 0.5));
|
|
}
|
|
|
|
#endif // USE_SOUNDTOUCH
|
|
|