Autres/audacity
1
0
Fork 0
mirror of https://github.com/cookiengineer/audacity synced 2025-09-17 16:50:26 +02:00
Code Issues Releases Wiki Activity

Improvements in Change Pitch effect.

Browse Source 
* from and to octave spin controls and cross-updating

* new conversion utilities in PitchName.*

* code simplification, new documentation

* stop a few compiler warnings in FreqWindow.cpp on unused params
This commit is contained in:
v.audacity 2013-06-18 04:35:35 +00:00
parent 741d283276
commit b327e510b0
6 changed files with 299 additions and 167 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

20
src/FreqWindow.cpp
View File

@ -440,7 +440,7 @@ void FreqWindow::GetAudio()
//wxLogDebug(wxT("Leaving FreqWindow::GetAudio()"));
}
void FreqWindow::OnSize(wxSizeEvent & event)
void FreqWindow::OnSize(wxSizeEvent & WXUNUSED(event))
{
Layout();
@ -616,7 +616,7 @@ void FreqWindow::PlotMouseEvent(wxMouseEvent & event)
}
}
void FreqWindow::OnAlgChoice(wxCommandEvent & event)
void FreqWindow::OnAlgChoice(wxCommandEvent & WXUNUSED(event))
{
// Log-frequency axis works for spectrum plots only.
if (mAlgChoice->GetSelection() == 0) {
@ -630,17 +630,17 @@ void FreqWindow::OnAlgChoice(wxCommandEvent & event)
Recalc();
}
void FreqWindow::OnSizeChoice(wxCommandEvent & event)
void FreqWindow::OnSizeChoice(wxCommandEvent & WXUNUSED(event))
{
Recalc();
}
void FreqWindow::OnFuncChoice(wxCommandEvent & event)
void FreqWindow::OnFuncChoice(wxCommandEvent & WXUNUSED(event))
{
Recalc();
}
void FreqWindow::OnAxisChoice(wxCommandEvent & event)
void FreqWindow::OnAxisChoice(wxCommandEvent & WXUNUSED(event))
{
mLogAxis = (mAxisChoice->GetSelection())?true:false;
@ -868,8 +868,8 @@ void FreqWindow::PlotPaint(wxPaintEvent & evt)
const wxChar *pp;
if (alg == 0) {
xpitch = PitchName_Absolute(FreqToMIDInoteNumber(xPos));
peakpitch = PitchName_Absolute(FreqToMIDInoteNumber(bestpeak));
xpitch = PitchName_Absolute(FreqToMIDInote(xPos));
peakpitch = PitchName_Absolute(FreqToMIDInote(bestpeak));
xp = xpitch.c_str();
pp = peakpitch.c_str();
/* i18n-hint: The %d's are replaced by numbers, the %s by musical notes, e.g. A#*/
@ -878,8 +878,8 @@ void FreqWindow::PlotPaint(wxPaintEvent & evt)
int (value + 0.5), int (bestpeak + 0.5),
pp, bestValue);
} else if (xPos > 0.0 && bestpeak > 0.0) {
xpitch = PitchName_Absolute(FreqToMIDInoteNumber(1.0 / xPos));
peakpitch = PitchName_Absolute(FreqToMIDInoteNumber(1.0 / bestpeak));
xpitch = PitchName_Absolute(FreqToMIDInote(1.0 / xPos));
peakpitch = PitchName_Absolute(FreqToMIDInote(1.0 / bestpeak));
xp = xpitch.c_str();
pp = peakpitch.c_str();
/* i18n-hint: The %d's are replaced by numbers, the %s by musical notes, e.g. A#
@ -1287,7 +1287,7 @@ FreqPlot::FreqPlot(wxWindow * parent, wxWindowID id,
freqWindow = (FreqWindow *) parent;
}
void FreqPlot::OnErase(wxEraseEvent &evt)
void FreqPlot::OnErase(wxEraseEvent & WXUNUSED(event))
{
// Ignore it to prevent flashing
}

49
src/PitchName.cpp
View File

@ -23,42 +23,36 @@
#include "PitchName.h"
// FreqToMIDInoteNumber takes a frequency in Hz (exponential scale relative to
// alphabetic pitch names) and returns a pitch ID number (linear
// scale), such that A440 (A4) is 69, middle C (C4) is 60, etc.
// Each register starts with C (e.g., for middle C and A440,
// it's register 4).
double FreqToMIDInoteNumber(double freq)
double FreqToMIDInote(const double freq)
{
// Make the calculation relative to A440 (A4), note number 69.
return (69.0 + (12.0 * (log(freq / 440.0) / log(2.0))));
}
// PitchIndex returns the [0,11] index for a double pitchNum,
// as per result from FreqToMIDInoteNumber, corresponding to modulo 12
// of the integer part of (pitchNum + 0.5), so 0=C, 1=C#, etc.
unsigned int PitchIndex(double pitchNum)
unsigned int PitchIndex(const double dMIDInote)
{
int nPitchIndex = ((int)(pitchNum + 0.5) % 12);
// MIDI numbers (pitchNum) can be negative.
int nPitchIndex = ((int)(dMIDInote + 0.5) % 12);
// MIDI numbers can be negative.
// Because of the modulo, we know we're within 12 of positive.
if (nPitchIndex < 0)
nPitchIndex += 12;
return nPitchIndex;
}
int PitchOctave(const double dMIDInote)
{
return ((int)((dMIDInote + 0.5) / 12) - 1);
}
wxChar gPitchName[10];
wxChar * pPitchName;
// PitchName takes pitchNum (as per result from
// FreqToMIDInoteNumber) and returns a standard pitch/note name [C, C#, etc.).
// Sharps are the default, unless, bWantFlats is true.
wxChar * PitchName(double pitchNum, bool bWantFlats /* = false */)
wxChar * PitchName(const double dMIDInote, const bool bWantFlats /* = false */)
{
pPitchName = gPitchName;
switch (PitchIndex(pitchNum)) {
switch (PitchIndex(dMIDInote)) {
case 0:
*pPitchName++ = wxT('C');
break;
@ -132,20 +126,23 @@ wxChar * PitchName(double pitchNum, bool bWantFlats /* = false */)
return gPitchName;
}
// PitchName_Absolute does the same thing as PitchName, but appends
// the octave number, e.g., instead of "C" it will return "C4"
// if the pitchNum corresonds to middle C, i.e., is 60.
// ("Scientific Pitch Notation")
// Sharps are the default, unless, bWantFlats is true.
wxChar * PitchName_Absolute(double pitchNum, bool bWantFlats /* = false */)
wxChar * PitchName_Absolute(const double dMIDInote, const bool bWantFlats /* = false */)
{
PitchName(pitchNum, bWantFlats);
PitchName(dMIDInote, bWantFlats);
// PitchName sets pPitchName to the next available char in gPitchName,
// so it's ready to append the register number.
int octaveNum = ((int)((pitchNum + 0.5) / 12) - 1);
wxSnprintf(pPitchName, 8, wxT("%d"), octaveNum);
wxSnprintf(pPitchName, 8, wxT("%d"), PitchOctave(dMIDInote));
return gPitchName;
}
double PitchToMIDInote(const unsigned int nPitchIndex, const int nPitchOctave)
{
return ((double)nPitchIndex + (((double)nPitchOctave + 1.0) * 12.0));
}
double PitchToFreq(const unsigned int nPitchIndex, const int nPitchOctave)
{
return (440.0 * pow(2.0, (PitchToMIDInote(nPitchIndex, nPitchOctave) - 69) / 12.0));
}

61
src/PitchName.h
View File

@ -1,56 +1,55 @@
/**********************************************************************
Audacity: A Digital Audio Editor
Audacity(R) is copyright (c) 1999-2013 Audacity Team.
License: GPL v2. See License.txt.
PitchName.h
Vaughan Johnson, Dominic Mazzoni
Copyright 2005-9, Vaughan Johnson and Dominic Mazzoni.
All rights reserved.
******************************************************************//**
Utilities for converting from frequency to pitch
and from pitch to absolute (e.g., C4 for middle C)
or nominal (A through G#) pitch name.
utilities for converting among frequency, MIDI note number,
pitch index, pitch name
*//*******************************************************************/
**********************************************************************/
#ifndef __AUDACITY_PITCHNAME__
#define __AUDACITY_PITCHNAME__
#include <wx/defs.h>
// FreqToMIDInoteNumber takes a frequency in Hz (exponential scale relative to
// FreqToMIDInote takes a frequency in Hz (exponential scale relative to
// alphabetic pitch names) and returns a pitch ID number (linear
// scale), such that A440 (A4) is 69, middle C (C4) is 60, etc.
// Each register starts with C (e.g., for middle C and A440,
// it's register 4).
double FreqToMIDInoteNumber(double freq);
// MIDI note number 0 is C-1 in Scientific pitch notation.
double FreqToMIDInote(const double freq);
// PitchIndex returns the [0,11] index for a double pitchNum,
// as per result from FreqToMIDInoteNumber, corresponding to modulo 12
// of the integer part of (pitchNum + 0.5), so 0=C, 1=C#, etc.
unsigned int PitchIndex(double pitchNum);
// PitchIndex returns the [0,11] index for a double MIDI note number,
// per result from FreqToMIDInote, corresponding to modulo 12
// of the integer part of (dMIDInote + 0.5), so 0=C, 1=C#, etc.
unsigned int PitchIndex(const double dMIDInote);
// PitchName takes pitchNum (as per result from
// FreqToMIDInoteNumber) and returns a standard pitch/note name [C, C#, etc.).
// PitchOctave returns the octave index for a double dMIDInote note number,
// per result from FreqToMIDInote.
// MIDI note number 0 is C-1 in Scientific pitch notation.
int PitchOctave(const double dMIDInote);
// PitchName takes dMIDInote (per result from
// FreqToMIDInote) and returns a standard pitch/note name [C, C#, etc.).
// Sharps are the default, unless, bWantFlats is true.
wxChar * PitchName(double pitchNum, bool bWantFlats = false);
wxChar * PitchName(const double dMIDInote, const bool bWantFlats = false);
// PitchName_Absolute does the same thing as PitchName, but appends
// the register number, e.g., instead of "C" it will return "C4"
// if the pitchNum corresonds to middle C.
// Sharps are the default, unless, bWantFlats is true.
wxChar * PitchName_Absolute(double pitchNum, bool bWantFlats = false);
// the octave number, e.g., instead of "C" it will return "C4"
// if the dMIDInote corresonds to middle C, i.e., is 60.
wxChar * PitchName_Absolute(const double dMIDInote, const bool bWantFlats = false);
double PitchToMIDInote(const unsigned int nPitchIndex, const int nPitchOctave);
double PitchToFreq(const unsigned int nPitchIndex, const int nPitchOctave);
#endif // __AUDACITY_PITCHNAME__
// Indentation settings for Vim and Emacs and unique identifier for Arch, a
// version control system. Please do not modify past this point.
//
// Local Variables:
// c-basic-offset: 3
// indent-tabs-mode: nil
// End:
//
// vim: et sts=3 sw=3
// arch-tag: 1cd2b819-63b6-4051-9991-37165f236037

228
src/effects/ChangePitch.cpp
View File

@ -17,12 +17,6 @@
#include "ChangePitch.h"
#include "../ShuttleGui.h"
#include "../PitchName.h"
#include "../Spectrum.h"
#include "../WaveTrack.h"
#include "TimeWarper.h"
#include <float.h>
#include <math.h>
@ -34,14 +28,19 @@
#include <wx/textctrl.h>
#include <wx/valtext.h>
//
#include "../ShuttleGui.h"
#include "../PitchName.h"
#include "../Spectrum.h"
#include "../WaveTrack.h"
#include "TimeWarper.h"
// EffectChangePitch
//
EffectChangePitch::EffectChangePitch()
{
m_FromPitchIndex = -1; // -1 => uninitialized
m_ToPitchIndex = -1; // -1 => uninitialized
m_nFromPitch = -1; // -1 => uninitialized
m_nToPitch = -1; // -1 => uninitialized
m_SemitonesChange = 0.0;
@ -51,8 +50,9 @@ EffectChangePitch::EffectChangePitch()
m_PercentChange = 0.0;
}
wxString EffectChangePitch::GetEffectDescription() {
// Note: This is useful only after change amount has been set.
wxString EffectChangePitch::GetEffectDescription()
{
// This is useful only after m_SemitonesChange has been set.
return wxString::Format(_("Applied effect: %s %.2f semitones"),
this->GetEffectName().c_str(),
m_SemitonesChange);
@ -64,9 +64,8 @@ bool EffectChangePitch::Init()
return true;
}
// DeduceFrequencies is Dominic's extremely cool trick (Vaughan sez so!)
// to set deduce m_FromFrequency from the samples at the beginning of
// the selection. Then we set some other params accordingly.
// Deduce m_FromFrequency from the samples at the beginning of
// the selection. Then set some other params accordingly.
void EffectChangePitch::DeduceFrequencies()
{
// As a neat trick, attempt to get the frequency of the note at the
@ -125,8 +124,8 @@ void EffectChangePitch::DeduceFrequencies()
m_ToFrequency = (m_FromFrequency * (100.0 + m_PercentChange)) / 100.0;
// Now we can set the pitch control values.
m_FromPitchIndex = PitchIndex(FreqToMIDInoteNumber(m_FromFrequency));
m_ToPitchIndex = PitchIndex(FreqToMIDInoteNumber(m_ToFrequency));
m_nFromPitch = PitchIndex(FreqToMIDInote(m_FromFrequency));
m_nToPitch = PitchIndex(FreqToMIDInote(m_ToFrequency));
}
}
@ -135,8 +134,10 @@ bool EffectChangePitch::PromptUser()
this->DeduceFrequencies(); // Set frequency-related control values based on sample.
ChangePitchDialog dlog(this, mParent);
dlog.m_FromPitchIndex = m_FromPitchIndex;
dlog.m_ToPitchIndex = m_ToPitchIndex;
dlog.m_nFromPitch = m_nFromPitch;
dlog.m_nFromOctave = PitchOctave(FreqToMIDInote(m_FromFrequency));
dlog.m_nToPitch = m_nToPitch;
dlog.m_nToOctave = PitchOctave(FreqToMIDInote(m_ToFrequency));
dlog.m_SemitonesChange = m_SemitonesChange;
dlog.m_FromFrequency = m_FromFrequency;
dlog.m_ToFrequency = m_ToFrequency;
@ -151,8 +152,8 @@ bool EffectChangePitch::PromptUser()
if (dlog.GetReturnCode() == wxID_CANCEL)
return false;
m_FromPitchIndex = dlog.m_FromPitchIndex;
m_ToPitchIndex = dlog.m_ToPitchIndex;
m_nFromPitch = dlog.m_nFromPitch;
m_nToPitch = dlog.m_nToPitch;
m_SemitonesChange = dlog.m_SemitonesChange;
m_FromFrequency = dlog.m_FromFrequency;
m_ToFrequency = dlog.m_ToFrequency;
@ -162,6 +163,8 @@ bool EffectChangePitch::PromptUser()
bool EffectChangePitch::TransferParameters( Shuttle & shuttle )
{
// Vaughan: Long lost to history, I don't see why m_PercentChange was chosen to be shuttled.
// Only m_SemitonesChange is used in Process().
shuttle.TransferDouble(wxT("Percentage"),m_PercentChange,0.0);
m_SemitonesChange = (12.0 * log((100.0 + m_PercentChange) / 100.0)) / log(2.0);
return true;
@ -197,7 +200,9 @@ enum {
ID_TEXT_PERCENTCHANGE = 10001,
ID_SLIDER_PERCENTCHANGE,
ID_CHOICE_FROMPITCH,
ID_CHOICE_FROMOCTAVE,
ID_CHOICE_TOPITCH,
ID_CHOICE_TOOCTAVE,
ID_TEXT_SEMITONESCHANGE,
ID_TEXT_FROMFREQUENCY,
ID_TEXT_TOFREQUENCY
@ -207,7 +212,9 @@ enum {
BEGIN_EVENT_TABLE(ChangePitchDialog, EffectDialog)
EVT_CHOICE(ID_CHOICE_FROMPITCH, ChangePitchDialog::OnChoice_FromPitch)
EVT_TEXT(ID_CHOICE_FROMOCTAVE, ChangePitchDialog::OnSpin_FromOctave)
EVT_CHOICE(ID_CHOICE_TOPITCH, ChangePitchDialog::OnChoice_ToPitch)
EVT_TEXT(ID_CHOICE_TOOCTAVE, ChangePitchDialog::OnSpin_ToOctave)
EVT_TEXT(ID_TEXT_SEMITONESCHANGE, ChangePitchDialog::OnText_SemitonesChange)
@ -230,8 +237,9 @@ ChangePitchDialog::ChangePitchDialog(EffectChangePitch *effect, wxWindow *parent
// event table handlers get called during this method, and those handlers that
// can cause trouble check for NULL.
m_pChoice_FromPitch = NULL;
m_pRadioButton_PitchDown = NULL;
m_pSpin_FromOctave = NULL;
m_pChoice_ToPitch = NULL;
m_pSpin_ToOctave = NULL;
m_pTextCtrl_SemitonesChange = NULL;
@ -242,8 +250,10 @@ ChangePitchDialog::ChangePitchDialog(EffectChangePitch *effect, wxWindow *parent
m_pSlider_PercentChange = NULL;
// effect parameters
m_FromPitchIndex = -1; // -1 => uninitialized
m_ToPitchIndex = -1; // -1 => uninitialized
m_nFromPitch = -1; // -1 => uninitialized
m_nFromOctave = -1; // -1 => uninitialized
m_nToPitch = -1; // -1 => uninitialized
m_nToOctave = -1; // -1 => uninitialized
m_SemitonesChange = 0.0;
@ -294,7 +304,7 @@ void ChangePitchDialog::PopulateOrExchange(ShuttleGui & S)
{
S.AddTitle(_("Change Pitch without Changing Tempo") +
wxString(wxT("\n\n")) +
_("by Vaughan Johnson && Dominic Mazzoni") +
_("by Vaughan Johnson, Dominic Mazzoni, && Steve Daulton") +
wxString(wxT("\n")) +
_("using SoundTouch, by Olli Parviainen"));
}
@ -312,9 +322,19 @@ void ChangePitchDialog::PopulateOrExchange(ShuttleGui & S)
m_pChoice_FromPitch->SetName(_("From Pitch"));
m_pChoice_FromPitch->SetSizeHints(80, -1);
m_pSpin_FromOctave =
S.Id(ID_CHOICE_FROMOCTAVE).AddSpinCtrl(wxT(""), m_nFromOctave, INT_MAX, INT_MIN);
m_pSpin_FromOctave->SetName(_("From Octave"));
m_pSpin_FromOctave->SetSizeHints(50, -1);
m_pChoice_ToPitch = S.Id(ID_CHOICE_TOPITCH).AddChoice(_("to"), wxT(""), &pitch);
m_pChoice_ToPitch->SetName(_("To Pitch"));
m_pChoice_ToPitch->SetSizeHints(80, -1);
m_pSpin_ToOctave =
S.Id(ID_CHOICE_TOOCTAVE).AddSpinCtrl(wxT(""), m_nToOctave, INT_MAX, INT_MIN);
m_pSpin_ToOctave->SetName(_("From Octave"));
m_pSpin_ToOctave->SetSizeHints(50, -1);
}
S.EndHorizontalLay();
}
@ -377,15 +397,15 @@ bool ChangePitchDialog::TransferDataToWindow()
// from/to pitch controls
if (m_pChoice_FromPitch)
m_pChoice_FromPitch->SetSelection(m_FromPitchIndex);
m_pChoice_FromPitch->SetSelection(m_nFromPitch);
if (m_pSpin_FromOctave)
m_pSpin_FromOctave->SetValue(m_nFromOctave);
this->Update_Choice_ToPitch();
this->Update_Spin_ToOctave();
// semitones change control
this->Update_Text_SemitonesChange();
// from/to frequency controls
if (m_pTextCtrl_FromFrequency) {
wxString str;
@ -398,12 +418,10 @@ bool ChangePitchDialog::TransferDataToWindow()
this->Update_Text_ToFrequency();
// percent change controls
this->Update_Text_PercentChange();
this->Update_Slider_PercentChange();
m_bLoopDetect = false;
return true;
@ -417,10 +435,12 @@ bool ChangePitchDialog::TransferDataFromWindow()
// from/to pitch controls
if (m_pChoice_FromPitch)
m_FromPitchIndex = m_pChoice_FromPitch->GetSelection();
m_nFromPitch = m_pChoice_FromPitch->GetSelection();
if (m_pSpin_FromOctave)
m_nFromOctave = m_pSpin_FromOctave->GetValue();
if (m_pChoice_ToPitch)
m_ToPitchIndex = m_pChoice_ToPitch->GetSelection();
m_nToPitch = m_pChoice_ToPitch->GetSelection();
// semitones change control
@ -462,18 +482,24 @@ bool ChangePitchDialog::TransferDataFromWindow()
// calculations
void ChangePitchDialog::Calc_ToPitchIndex()
void ChangePitchDialog::Calc_ToPitch()
{
int nSemitonesChange =
(int)(m_SemitonesChange + ((m_SemitonesChange < 0.0) ? -0.5 : 0.5));
m_ToPitchIndex = (m_FromPitchIndex + nSemitonesChange) % 12;
if (m_ToPitchIndex < 0)
m_ToPitchIndex += 12;
m_nToPitch = (m_nFromPitch + nSemitonesChange) % 12;
if (m_nToPitch < 0)
m_nToPitch += 12;
}
void ChangePitchDialog::Calc_ToOctave()
{
m_nToOctave = PitchOctave(FreqToMIDInote(m_ToFrequency));
}
void ChangePitchDialog::Calc_SemitonesChange_fromPitches()
{
m_SemitonesChange = m_ToPitchIndex - m_FromPitchIndex;
m_SemitonesChange =
PitchToMIDInote(m_nToPitch, m_nToOctave) - PitchToMIDInote(m_nFromPitch, m_nFromOctave);
}
void ChangePitchDialog::Calc_SemitonesChange_fromPercentChange()
@ -502,12 +528,43 @@ void ChangePitchDialog::OnChoice_FromPitch(wxCommandEvent & WXUNUSED(event))
return;
if (m_pChoice_FromPitch) {
m_FromPitchIndex = m_pChoice_FromPitch->GetSelection();
m_nFromPitch = m_pChoice_FromPitch->GetSelection();
m_FromFrequency = PitchToFreq(m_nFromPitch, m_nFromOctave);
this->Calc_ToPitchIndex();
this->Calc_ToPitch();
this->Calc_ToFrequency();
this->Calc_ToOctave(); // Call after Calc_ToFrequency().
m_bLoopDetect = true;
{
this->Update_Choice_ToPitch();
this->Update_Spin_ToOctave();
this->Update_Text_FromFrequency();
this->Update_Text_ToFrequency();
}
m_bLoopDetect = false;
}
}
void ChangePitchDialog::OnSpin_FromOctave(wxCommandEvent & WXUNUSED(event))
{
if (m_bLoopDetect)
return;
if (m_pSpin_FromOctave)
{
m_nFromOctave = m_pSpin_FromOctave->GetValue();
m_FromFrequency = PitchToFreq(m_nFromPitch, m_nFromOctave);
this->Calc_ToFrequency();
this->Calc_ToOctave(); // Call after Calc_ToFrequency().
m_bLoopDetect = true;
{
this->Update_Spin_ToOctave();
this->Update_Text_FromFrequency();
this->Update_Text_ToFrequency();
}
m_bLoopDetect = false;
}
}
@ -517,18 +574,55 @@ void ChangePitchDialog::OnChoice_ToPitch(wxCommandEvent & WXUNUSED(event))
if (m_bLoopDetect)
return;
if (m_pChoice_ToPitch) {
m_ToPitchIndex = m_pChoice_ToPitch->GetSelection();
if (m_pChoice_ToPitch)
{
m_nToPitch = m_pChoice_ToPitch->GetSelection();
this->Calc_SemitonesChange_fromPitches();
this->Calc_PercentChange(); // Call *after* m_SemitonesChange is updated.
this->Calc_ToFrequency(); // Call *after* m_PercentChange is updated.
m_bLoopDetect = true;
{
this->Update_Text_SemitonesChange();
this->Update_Text_ToFrequency();
this->Update_Text_PercentChange();
this->Update_Slider_PercentChange();
}
m_bLoopDetect = false;
}
}
void ChangePitchDialog::OnSpin_ToOctave(wxCommandEvent & WXUNUSED(event))
{
if (m_bLoopDetect)
return;
if (m_pSpin_ToOctave)
{
int nNewValue = m_pSpin_ToOctave->GetValue();
// Validation: Rather than set a range for octave numbers, enforce a range that
// keeps below 90% m_PercentChange.
if ((nNewValue + 3) < m_nFromOctave)
{
::wxBell();
m_pSpin_ToOctave->SetValue(m_nFromOctave - 3);
return;
}
m_nToOctave = nNewValue;
m_ToFrequency = PitchToFreq(m_nToPitch, m_nToOctave);
this->Calc_SemitonesChange_fromPitches();
this->Calc_PercentChange(); // Call *after* m_SemitonesChange is updated.
m_bLoopDetect = true;
{
this->Update_Text_SemitonesChange();
this->Update_Text_ToFrequency();
this->Update_Text_PercentChange();
this->Update_Slider_PercentChange();
}
m_bLoopDetect = false;
}
}
@ -551,13 +645,15 @@ void ChangePitchDialog::OnText_SemitonesChange(wxCommandEvent & WXUNUSED(event))
this->Calc_PercentChange();
this->Calc_ToFrequency(); // Call *after* m_PercentChange is updated.
this->Calc_ToPitchIndex();
this->Calc_ToPitch();
m_bLoopDetect = true;
{
this->Update_Choice_ToPitch();
this->Update_Text_ToFrequency();
this->Update_Text_PercentChange();
this->Update_Slider_PercentChange();
}
m_bLoopDetect = false;
// If m_SemitonesChange is a big enough negative, we can go to or below 0 freq.
@ -589,14 +685,16 @@ void ChangePitchDialog::OnText_FromFrequency(wxCommandEvent & WXUNUSED(event))
}
m_FromFrequency = newDouble;
m_FromPitchIndex = PitchIndex(FreqToMIDInoteNumber(m_FromFrequency));
m_nFromPitch = PitchIndex(FreqToMIDInote(m_FromFrequency));
this->Calc_ToFrequency();
this->Calc_ToPitchIndex();
this->Calc_ToPitch();
m_bLoopDetect = true;
{
this->Update_Choice_FromPitch();
this->Update_Choice_ToPitch();
this->Update_Text_ToFrequency();
}
m_bLoopDetect = false;
// Success. Make sure OK and Preview are enabled, in case we disabled above during editing.
@ -629,13 +727,15 @@ void ChangePitchDialog::OnText_ToFrequency(wxCommandEvent & WXUNUSED(event))
(double)(m_FromFrequency)) - 100.0;
this->Calc_SemitonesChange_fromPercentChange();
this->Calc_ToPitchIndex(); // Call *after* m_SemitonesChange is updated.
this->Calc_ToPitch(); // Call *after* m_SemitonesChange is updated.
m_bLoopDetect = true;
{
this->Update_Choice_ToPitch();
this->Update_Text_SemitonesChange();
this->Update_Text_PercentChange();
this->Update_Slider_PercentChange();
}
m_bLoopDetect = false;
// Success. Make sure OK and Preview are enabled, in case we disabled above during editing.
@ -668,14 +768,16 @@ void ChangePitchDialog::OnText_PercentChange(wxCommandEvent & WXUNUSED(event))
m_PercentChange = newValue;
this->Calc_SemitonesChange_fromPercentChange();
this->Calc_ToPitchIndex(); // Call *after* m_SemitonesChange is updated.
this->Calc_ToPitch(); // Call *after* m_SemitonesChange is updated.
this->Calc_ToFrequency();
m_bLoopDetect = true;
{
this->Update_Choice_ToPitch();
this->Update_Text_SemitonesChange();
this->Update_Text_ToFrequency();
this->Update_Slider_PercentChange();
}
m_bLoopDetect = false;
// Success. Make sure OK and Preview are enabled, in case we disabled above during editing.
@ -696,14 +798,16 @@ void ChangePitchDialog::OnSlider_PercentChange(wxCommandEvent & WXUNUSED(event))
m_PercentChange = pow(m_PercentChange, PERCENTCHANGE_SLIDER_WARP);
this->Calc_SemitonesChange_fromPercentChange();
this->Calc_ToPitchIndex(); // Call *after* m_SemitonesChange is updated.
this->Calc_ToPitch(); // Call *after* m_SemitonesChange is updated.
this->Calc_ToFrequency();
m_bLoopDetect = true;
{
this->Update_Choice_ToPitch();
this->Update_Text_SemitonesChange();
this->Update_Text_ToFrequency();
this->Update_Text_PercentChange();
}
m_bLoopDetect = false;
}
}
@ -729,13 +833,25 @@ void ChangePitchDialog::OnPreview(wxCommandEvent & WXUNUSED(event))
void ChangePitchDialog::Update_Choice_FromPitch()
{
if (m_pChoice_FromPitch)
m_pChoice_FromPitch->SetSelection(m_FromPitchIndex);
m_pChoice_FromPitch->SetSelection(m_nFromPitch);
}
void ChangePitchDialog::Update_Spin_FromOctave()
{
if (m_pSpin_FromOctave)
m_pSpin_FromOctave->SetValue(m_nFromOctave);
}
void ChangePitchDialog::Update_Choice_ToPitch()
{
if (m_pChoice_ToPitch)
m_pChoice_ToPitch->SetSelection(m_ToPitchIndex);
m_pChoice_ToPitch->SetSelection(m_nToPitch);
}
void ChangePitchDialog::Update_Spin_ToOctave()
{
if (m_pSpin_ToOctave)
m_pSpin_ToOctave->SetValue(m_nToOctave);
}
void ChangePitchDialog::Update_Text_SemitonesChange()
@ -747,6 +863,18 @@ void ChangePitchDialog::Update_Text_SemitonesChange()
}
}
void ChangePitchDialog::Update_Text_FromFrequency()
{
if (m_pTextCtrl_FromFrequency) {
wxString str;
if ((m_FromFrequency > 0.0) && (m_FromFrequency <= DBL_MAX))
str.Printf(wxT("%.3f"), m_FromFrequency);
else
str = wxT("");
m_pTextCtrl_FromFrequency->SetValue(str);
}
}
void ChangePitchDialog::Update_Text_ToFrequency()
{
if (m_pTextCtrl_ToFrequency) {

36
src/effects/ChangePitch.h
View File

@ -21,6 +21,7 @@
#include <wx/dialog.h>
#include <wx/intl.h>
#include <wx/slider.h>
#include <wx/spinctrl.h>
class EffectChangePitch : public EffectSoundTouch {
@ -51,9 +52,8 @@ class EffectChangePitch : public EffectSoundTouch {
virtual bool Init();
// DeduceFrequencies is Dominic's extremely cool trick (Vaughan sez so!)
// to set deduce m_FromFrequency from the samples at the beginning of
// the selection. Then we set some other params accordingly.
// Deduce m_FromFrequency from the samples at the beginning of
// the selection. Then set some other params accordingly.
virtual void DeduceFrequencies();
virtual bool PromptUser();
@ -63,8 +63,8 @@ class EffectChangePitch : public EffectSoundTouch {
virtual bool Process();
private:
int m_FromPitchIndex; // pitch index, per PitchIndex
int m_ToPitchIndex; // pitch index, per PitchIndex
int m_nFromPitch; // per PitchIndex()
int m_nToPitch; // per PitchIndex()
double m_SemitonesChange; // how many semitones to change pitch
@ -95,15 +95,19 @@ class ChangePitchDialog:public EffectDialog {
private:
// calculations
void Calc_ToPitchIndex(); // Update m_ToPitchIndex from new m_SemitonesChange.
void Calc_SemitonesChange_fromPitches(); // Update m_SemitonesChange from new m_*PitchIndex-es.
void Calc_SemitonesChange_fromPercentChange(); // Update m_SemitonesChange from new m_PercentChange.
void Calc_ToPitch(); // Update m_nToPitch from new m_SemitonesChange.
void Calc_ToOctave();
void Calc_SemitonesChange_fromPitches();
void Calc_SemitonesChange_fromOctaveChange();
void Calc_SemitonesChange_fromPercentChange();
void Calc_ToFrequency(); // Update m_ToFrequency from m_FromFrequency & m_PercentChange.
void Calc_PercentChange(); // Update m_PercentChange based on new m_SemitonesChange.
// handlers
void OnChoice_FromPitch(wxCommandEvent & event);
void OnSpin_FromOctave(wxCommandEvent & event);
void OnChoice_ToPitch(wxCommandEvent & event);
void OnSpin_ToOctave(wxCommandEvent & event);
void OnText_SemitonesChange(wxCommandEvent & event);
@ -117,10 +121,13 @@ class ChangePitchDialog:public EffectDialog {
// helper fns for controls
void Update_Choice_FromPitch();
void Update_Spin_FromOctave();
void Update_Choice_ToPitch();
void Update_Spin_ToOctave();
void Update_Text_SemitonesChange();
void Update_Text_FromFrequency();
void Update_Text_ToFrequency();
void Update_Text_PercentChange(); // Update control per current m_PercentChange.
@ -128,25 +135,26 @@ class ChangePitchDialog:public EffectDialog {
private:
EffectChangePitch * mEffect;
bool m_bLoopDetect;
bool m_bLoopDetect; // Used to avoid loops in initialization and in event handling.
// controls
wxChoice * m_pChoice_FromPitch;
wxRadioButton *m_pRadioButton_PitchDown;
wxSpinCtrl * m_pSpin_FromOctave;
wxChoice * m_pChoice_ToPitch;
wxSpinCtrl * m_pSpin_ToOctave;
wxTextCtrl * m_pTextCtrl_SemitonesChange;
wxTextCtrl * m_pTextCtrl_FromFrequency;
wxTextCtrl * m_pTextCtrl_ToFrequency;
wxTextCtrl * m_pTextCtrl_PercentChange;
wxSlider * m_pSlider_PercentChange;
public:
// effect parameters
int m_FromPitchIndex; // pitch index, per PitchIndex
int m_ToPitchIndex; // pitch index, per PitchIndex
int m_nFromPitch; // per PitchIndex()
int m_nFromOctave; // per PitchOctave()
int m_nToPitch; // per PitchIndex()
int m_nToOctave; // per PitchOctave()
double m_SemitonesChange; // how many semitones to change pitch

2
src/effects/Reverb.cpp
View File

@ -82,7 +82,7 @@ void EffectReverb::Delete()
}
// Most of what follows should really be provided by Audacity framework classes:
//vvvvv Not sure what you mean by that, Rob. A la EffectSimpleMono, e.g.?
//vvv Not sure what you mean by that, Rob. A la EffectSimpleMono, e.g.?
bool EffectReverb::ProcessOneTrack(size_t n, WaveTrack * track, WaveTrack * track2, wxString const & msg)
{