Steve Daulton's Bass-Boost-without-overboosting (clipping free Bass Boost).
This commit is contained in:
james.k.crook@gmail.com
parent
a8944db4a6
commit
04fdfe3651
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@ -10,8 +10,11 @@
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******************************************************************//**
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\class EffectBassTreble
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\brief An EffectSimpleMono, high shelf and low shelf filters,
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derived from BassBoost by Nasca Octavian Paul
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\brief A TwoPassSimpleMono, high shelf and low shelf filters.
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The first pass applies the equalization and calculates the
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peak value. The second pass, if enabled, normalizes to the
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level set by the level control.
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*//****************************************************************//**
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@ -21,79 +24,55 @@ derived from BassBoost by Nasca Octavian Paul
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*//*******************************************************************/
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#include "../Audacity.h"
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#include <math.h>
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#include "BassTreble.h"
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#include "../WaveTrack.h"
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#include "../Prefs.h"
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#include <wx/button.h>
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#include <wx/msgdlg.h>
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#include <wx/sizer.h>
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#include <wx/stattext.h>
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#include <wx/textctrl.h>
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#include <wx/valtext.h>
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#include <wx/checkbox.h>
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#include <wx/slider.h>
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#include <wx/sizer.h>
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#include <math.h>
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//
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// EffectBassTreble
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//
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// Used to communicate the type of the filter.
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static const int bassType = 0; //Low Shelf
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static const int trebleType = 1; // High Shelf
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EffectBassTreble::EffectBassTreble()
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{
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}
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bool EffectBassTreble::Init()
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{
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// restore saved preferences
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int readBool;
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gPrefs->Read(wxT("/Effects/BassTreble/Bass"), &dB_bass, 0.0);
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gPrefs->Read(wxT("/Effects/BassTreble/Treble"), &dB_treble, 0.0);
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gPrefs->Read(wxT("/Effects/BassTreble/Gain"), &dB_gain, 0.0);
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gPrefs->Read(wxT("/Effects/BassTreble/Level"), &dB_level, -1.0);
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gPrefs->Read(wxT("/Effects/BassTreble/Normalize"), &readBool, 1 );
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// Validate data
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dB_level = (dB_level > 0)? 0 : dB_level;
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mbNormalize = (readBool != 0);
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return true;
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}
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wxString EffectBassTreble::GetEffectDescription() {
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// Note: This is useful only after values have been set.
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return wxString::Format(_("Applied effect: %s bass = %.0f dB, treble = %.0f dB, gain = %.0f dB"),
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this->GetEffectName().c_str(), dB_bass, dB_treble, dB_gain);
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}
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wxString strResult =
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wxString::Format(_("Applied effect: %s bass = %.1f dB, treble = %.1f dB"),
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this->GetEffectName().c_str(),
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dB_bass, dB_treble);
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(mbNormalize) ?
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strResult += wxString::Format(_(", level enabled at = %.1f dB"), dB_level) :
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strResult += wxString::Format(_(", level disabled"));
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bool EffectBassTreble::NewTrackSimpleMono()
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{
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const float slope = 0.4f; // same slope for both filters
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//(re)initialise filter parameters for low shelf
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xn1Bass=0;
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xn2Bass=0;
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yn1Bass=0;
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yn2Bass=0;
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xn1Treble=0;
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xn2Treble=0;
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yn1Treble=0;
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yn2Treble=0;
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// Compute coefficents of the low shelf biquand IIR filter
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wBass = 2 * M_PI * 250 / mCurRate; // half gain frequency 250 Hz
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swBass = sin(wBass);
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cwBass = cos(wBass);
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aBass = exp(log(10.0) * dB_bass / 40);
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bBass = sqrt((aBass * aBass + 1) / slope - (pow((aBass - 1), 2)));
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// Coefficients for low shelf
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b0Bass = aBass * ((aBass + 1) - (aBass - 1) * cwBass + bBass * swBass);
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b1Bass = 2 * aBass * ((aBass - 1) - (aBass + 1) * cwBass);
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b2Bass = aBass * ((aBass + 1) - (aBass - 1) * cwBass - bBass * swBass);
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a0Bass = ((aBass + 1) + (aBass - 1) * cwBass + bBass * swBass);
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a1Bass = -2 * ((aBass - 1) + (aBass + 1) * cwBass);
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a2Bass = (aBass + 1) + (aBass - 1) * cwBass - bBass * swBass;
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// Compute coefficents of the high shelf biquand IIR filter
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wTreble = 2 * M_PI * 4000 / mCurRate; // half gain frequency 4000 Hz
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swTreble = sin(wTreble);
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cwTreble = cos(wTreble);
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aTreble = exp(log(10.0) * dB_treble / 40);
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bTreble = sqrt((aTreble * aTreble + 1) / slope - (pow((aTreble - 1), 2)));
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// Coefficients for high shelf
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b0Treble = aTreble * ((aTreble + 1) + (aTreble - 1) * cwTreble + bTreble * swTreble);
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b1Treble = -2 * aTreble * ((aTreble - 1) + (aTreble + 1) * cwTreble);
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b2Treble = aTreble * ((aTreble + 1) + (aTreble - 1) * cwTreble - bTreble * swTreble);
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a0Treble = ((aTreble + 1) - (aTreble - 1) * cwTreble + bTreble * swTreble);
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a1Treble = 2 * ((aTreble - 1) - (aTreble + 1) * cwTreble);
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a2Treble = (aTreble + 1) - (aTreble - 1) * cwTreble - bTreble * swTreble;
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return true;
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return strResult;
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}
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bool EffectBassTreble::PromptUser()
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@ -101,7 +80,8 @@ bool EffectBassTreble::PromptUser()
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BassTrebleDialog dlog(this, mParent);
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dlog.bass = dB_bass;
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dlog.treble = dB_treble;
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dlog.gain = dB_gain;
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dlog.level = dB_level;
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dlog.mbNormalize = mbNormalize;
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dlog.TransferDataToWindow();
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dlog.CentreOnParent();
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dlog.ShowModal();
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@ -111,11 +91,13 @@ bool EffectBassTreble::PromptUser()
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dB_bass = dlog.bass;
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dB_treble = dlog.treble;
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dB_gain = dlog.gain;
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dB_level = dlog.level;
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mbNormalize = dlog.mbNormalize;
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gPrefs->Write(wxT("/Effects/BassTreble/Bass"), dB_bass);
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gPrefs->Write(wxT("/Effects/BassTreble/Treble"), dB_treble);
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gPrefs->Write(wxT("/Effects/BassTreble/Gain"), dB_gain);
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gPrefs->Write(wxT("/Effects/BassTreble/Level"), dB_level);
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gPrefs->Write(wxT("/Effects/BassTreble/Normalize"), mbNormalize);
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gPrefs->Flush();
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return true;
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@ -125,25 +107,117 @@ bool EffectBassTreble::TransferParameters( Shuttle & shuttle )
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{
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shuttle.TransferDouble(wxT("Bass"),dB_bass,0.0);
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shuttle.TransferDouble(wxT("Treble"),dB_treble,0.0);
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shuttle.TransferDouble(wxT("Gain"),dB_gain,0.0);
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shuttle.TransferDouble(wxT("Level"),dB_level,0.0);
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shuttle.TransferBool( wxT("Normalize"), mbNormalize, true );
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return true;
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}
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bool EffectBassTreble::ProcessSimpleMono(float *buffer, sampleCount len)
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bool EffectBassTreble::InitPass1()
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{
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/* initialise the filter */
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mMax=0.0;
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float out, in = 0;
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// Allow headroom for integer format samples
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mPreGain = (dB_treble > 0)? (1.4 * dB_treble) : fabs(dB_treble);
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if (dB_bass > 0)
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mPreGain = (mPreGain > (1.4 * dB_bass))? mPreGain : (1.4 * dB_bass);
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else
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mPreGain = (mPreGain > fabs(dB_bass))? mPreGain : fabs(dB_bass);
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mPreGain = (mbNormalize)? (exp(log(10.0) * mPreGain / 20)) : 1.0;
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for (sampleCount i = 0; i < len; i++) {
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in = buffer[i];
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if (!mbNormalize)
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DisableSecondPass();
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return true;
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}
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bool EffectBassTreble::NewTrackPass1()
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{
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const float slope = 0.4f; // same slope for both filters
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const double hzBass = 250.0f;
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const double hzTreble = 4000.0f;
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//(re)initialise filter parameters
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xn1Bass=xn2Bass=yn1Bass=yn2Bass=0;
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xn1Treble=xn2Treble=yn1Treble=yn2Treble=0;
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// Compute coefficents of the low shelf biquand IIR filter
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Coefficents(hzBass, slope, dB_bass, bassType,
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a0Bass, a1Bass, a2Bass,
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b0Bass, b1Bass, b2Bass);
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// Compute coefficents of the high shelf biquand IIR filter
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Coefficents(hzTreble, slope, dB_treble, trebleType,
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a0Treble, a1Treble, a2Treble,
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b0Treble, b1Treble, b2Treble);
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return true;
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}
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void EffectBassTreble::Coefficents(double hz, float slope, double gain, int type,
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float& a0, float& a1, float& a2,
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float& b0, float& b1, float& b2)
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{
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double w = 2 * M_PI * hz / mCurRate;
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double a = exp(log(10.0) * gain / 40);
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double b = sqrt((a * a + 1) / slope - (pow((a - 1), 2)));
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if (type == bassType)
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{
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b0 = a * ((a + 1) - (a - 1) * cos(w) + b * sin(w));
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b1 = 2 * a * ((a - 1) - (a + 1) * cos(w));
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b2 = a * ((a + 1) - (a - 1) * cos(w) - b * sin(w));
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a0 = ((a + 1) + (a - 1) * cos(w) + b * sin(w));
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a1 = -2 * ((a - 1) + (a + 1) * cos(w));
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a2 = (a + 1) + (a - 1) * cos(w) - b * sin(w);
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}
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else //assumed trebleType
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{
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b0 = a * ((a + 1) + (a - 1) * cos(w) + b * sin(w));
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b1 = -2 * a * ((a - 1) + (a + 1) * cos(w));
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b2 = a * ((a + 1) + (a - 1) * cos(w) - b * sin(w));
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a0 = ((a + 1) - (a - 1) * cos(w) + b * sin(w));
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a1 = 2 * ((a - 1) - (a + 1) * cos(w));
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a2 = (a + 1) - (a - 1) * cos(w) - b * sin(w);
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}
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}
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bool EffectBassTreble::InitPass2()
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{
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return mbNormalize;
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}
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// Process the input
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bool EffectBassTreble::ProcessPass1(float *buffer, sampleCount len)
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{
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for (sampleCount i = 0; i < len; i++)
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buffer[i] = (DoFilter(buffer[i]) / mPreGain);
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return true;
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}
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bool EffectBassTreble::ProcessPass2(float *buffer, sampleCount len)
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{
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if (mMax != 0)
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{
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float gain = (pow(10.0, dB_level/20.0f))/mMax;
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for (int i = 0; i < len; i++)
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// Normalize to specified level
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buffer[i] *= (mPreGain * gain);
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}
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return true;
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}
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float EffectBassTreble::DoFilter(float in)
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{
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// Bass filter
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out = (b0Bass * in + b1Bass * xn1Bass + b2Bass * xn2Bass -
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float out = (b0Bass * in + b1Bass * xn1Bass + b2Bass * xn2Bass -
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a1Bass * yn1Bass - a2Bass * yn2Bass) / a0Bass;
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xn2Bass = xn1Bass;
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xn1Bass = in;
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yn2Bass = yn1Bass;
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yn1Bass = out;
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// Treble filter
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in = out;
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out = (b0Treble * in + b1Treble * xn1Treble + b2Treble * xn2Treble -
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@ -152,11 +226,11 @@ bool EffectBassTreble::ProcessSimpleMono(float *buffer, sampleCount len)
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xn1Treble = in;
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yn2Treble = yn1Treble;
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yn1Treble = out;
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// Gain control
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buffer[i] = pow(10.0, dB_gain / 20.0) * out;
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}
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return true;
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// Retain the maximum value for use in the normalization pass
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if(mMax < fabs(out))
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mMax = fabs(out);
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return out;
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}
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//----------------------------------------------------------------------------
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@ -169,25 +243,27 @@ bool EffectBassTreble::ProcessSimpleMono(float *buffer, sampleCount len)
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#define ID_BASS_SLIDER 10002
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#define ID_TREBLE_TEXT 10003
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#define ID_TREBLE_SLIDER 10004
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#define ID_GAIN_TEXT 10005
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#define ID_GAIN_SLIDER 10006
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#define ID_LEVEL_TEXT 10005
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#define ID_LEVEL_SLIDER 10006
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#define ID_NORMALIZE 10007
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// Declare ranges
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#define BASS_MIN -15
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#define BASS_MAX 15
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#define TREBLE_MIN -15
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#define TREBLE_MAX 15
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#define GAIN_MIN -15
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#define GAIN_MAX 15
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#define BASS_MIN -150
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#define BASS_MAX 150
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#define TREBLE_MIN -150
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#define TREBLE_MAX 150
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#define LEVEL_MIN -300
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#define LEVEL_MAX 0
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BEGIN_EVENT_TABLE(BassTrebleDialog, EffectDialog)
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EVT_SLIDER(ID_BASS_SLIDER, BassTrebleDialog::OnBassSlider)
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EVT_SLIDER(ID_TREBLE_SLIDER, BassTrebleDialog::OnTrebleSlider)
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EVT_SLIDER(ID_GAIN_SLIDER, BassTrebleDialog::OnGainSlider)
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EVT_SLIDER(ID_LEVEL_SLIDER, BassTrebleDialog::OnLevelSlider)
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EVT_TEXT(ID_BASS_TEXT, BassTrebleDialog::OnBassText)
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EVT_TEXT(ID_TREBLE_TEXT, BassTrebleDialog::OnTrebleText)
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EVT_TEXT(ID_GAIN_TEXT, BassTrebleDialog::OnGainText)
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EVT_TEXT(ID_LEVEL_TEXT, BassTrebleDialog::OnLevelText)
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EVT_CHECKBOX(ID_NORMALIZE, BassTrebleDialog::OnNormalize)
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EVT_BUTTON(ID_EFFECT_PREVIEW, BassTrebleDialog::OnPreview)
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END_EVENT_TABLE()
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@ -199,10 +275,9 @@ BassTrebleDialog::BassTrebleDialog(EffectBassTreble *effect,
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Init();
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}
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void BassTrebleDialog::PopulateOrExchange(ShuttleGui & S)
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{
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wxTextValidator vld(wxFILTER_NUMERIC);
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S.StartHorizontalLay(wxCENTER, false);
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{
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/* i18n-hint: Steve Daulton is a person's name.*/
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@ -216,101 +291,187 @@ void BassTrebleDialog::PopulateOrExchange(ShuttleGui & S)
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}
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S.EndHorizontalLay();
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S.StartStatic(wxT(""));
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{
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S.StartMultiColumn(3, wxEXPAND);
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S.SetStretchyCol(2);
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{
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#ifdef __WXGTK__
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// BoxSizer is to make first mnemonic work, on Linux.
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wxPanel* cPanel = new wxPanel( this, wxID_ANY );
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wxBoxSizer* cSizer = new wxBoxSizer(wxVERTICAL);
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cPanel->SetSizer(cSizer);
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#endif
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wxTextValidator vld(wxFILTER_NUMERIC);
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// Bass control
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mBassT = S.Id(ID_BASS_TEXT).AddTextBox(_("Bass (dB):"), wxT(""), 10);
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mBassT = S.Id(ID_BASS_TEXT).AddTextBox(_("&Bass (dB):"), wxT(""), 10);
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mBassT->SetName(_("Bass (dB):"));
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mBassT->SetValidator(vld);
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S.SetStyle(wxSL_HORIZONTAL);
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mBassS = S.Id(ID_BASS_SLIDER).AddSlider(wxT(""), 0, BASS_MAX);
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mBassS->SetName(_("Bass (dB)"));
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mBassS = S.Id(ID_BASS_SLIDER).AddSlider(wxT(""), 0, BASS_MAX, BASS_MIN);
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mBassS->SetName(_("Bass"));
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mBassS->SetRange(BASS_MIN, BASS_MAX);
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mBassS->SetPageSize(30);
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// Treble control
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mTrebleT = S.Id(ID_TREBLE_TEXT).AddTextBox(_("Treble (dB):"), wxT(""), 10);
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mTrebleT = S.Id(ID_TREBLE_TEXT).AddTextBox(_("&Treble (dB):"), wxT(""), 10);
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mTrebleT->SetValidator(vld);
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S.SetStyle(wxSL_HORIZONTAL);
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mTrebleS = S.Id(ID_TREBLE_SLIDER).AddSlider(wxT(""), 0, TREBLE_MAX);
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mTrebleS->SetName(_("Treble (dB)"));
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mTrebleS = S.Id(ID_TREBLE_SLIDER).AddSlider(wxT(""), 0, TREBLE_MAX, TREBLE_MIN);
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mTrebleS->SetName(_("Treble"));
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mTrebleS->SetRange(TREBLE_MIN, TREBLE_MAX);
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mTrebleS->SetPageSize(30);
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// Gain control
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mGainT = S.Id(ID_GAIN_TEXT).AddTextBox(_("Gain (dB):"), wxT(""), 10);
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mGainT->SetValidator(vld);
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// Level control
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mLevelT = S.Id(ID_LEVEL_TEXT).AddTextBox(_("&Level (dB):"), wxT(""), 10);
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mLevelT->SetValidator(vld);
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S.SetStyle(wxSL_HORIZONTAL);
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mGainS = S.Id(ID_GAIN_SLIDER).AddSlider(wxT(""), 0, GAIN_MAX);
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mGainS->SetName(_("Gain (dB)"));
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mGainS->SetRange(GAIN_MIN, GAIN_MAX);
|
||||
mLevelS = S.Id(ID_LEVEL_SLIDER).AddSlider(wxT(""), 0, LEVEL_MAX, LEVEL_MIN);
|
||||
mLevelS->SetName(_("Level"));
|
||||
mLevelS->SetRange(LEVEL_MIN, LEVEL_MAX);
|
||||
mLevelS->SetPageSize(30);
|
||||
}
|
||||
S.EndMultiColumn();
|
||||
return;
|
||||
}
|
||||
S.EndStatic();
|
||||
|
||||
// Normalize checkbox
|
||||
S.StartHorizontalLay(wxLEFT, true);
|
||||
{
|
||||
mNormalizeCheckBox = S.Id(ID_NORMALIZE).AddCheckBox(_("&Enable level control"),
|
||||
mbNormalize ? wxT("true") : wxT("false"));
|
||||
mWarning = S.AddVariableText( wxT(""), false,
|
||||
wxALIGN_CENTER_VERTICAL | wxALIGN_LEFT);
|
||||
}
|
||||
S.EndHorizontalLay();
|
||||
|
||||
}
|
||||
|
||||
bool BassTrebleDialog::TransferDataToWindow()
|
||||
{
|
||||
mBassS->SetValue((int)bass);
|
||||
mTrebleS->SetValue((int)treble);
|
||||
mGainS->SetValue((int)gain);
|
||||
mBassS->SetValue((double)bass);
|
||||
mTrebleS->SetValue((double)treble);
|
||||
mLevelS->SetValue((double)level);
|
||||
|
||||
mBassT->SetValue(wxString::Format(wxT("%d"), (int) bass));
|
||||
mTrebleT->SetValue(wxString::Format(wxT("%d"), (int) treble));
|
||||
mGainT->SetValue(wxString::Format(wxT("%d"), (int) gain));
|
||||
mBassT->SetValue(wxString::Format(wxT("%.1f"), (float)bass));
|
||||
mTrebleT->SetValue(wxString::Format(wxT("%.1f"), (float)treble));
|
||||
mLevelT->SetValue(wxString::Format(wxT("%.1f"), (float)level));
|
||||
|
||||
mNormalizeCheckBox->SetValue(mbNormalize);
|
||||
UpdateUI();
|
||||
TransferDataFromWindow();
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
bool BassTrebleDialog::TransferDataFromWindow()
|
||||
{
|
||||
bass = TrapLong(mBassS->GetValue(), BASS_MIN, BASS_MAX);
|
||||
treble = TrapLong(mTrebleS->GetValue(), TREBLE_MIN, TREBLE_MAX);
|
||||
gain = TrapLong(mGainS->GetValue(), GAIN_MIN, GAIN_MAX);
|
||||
mBassT->GetValue().ToDouble(&bass);
|
||||
mTrebleT->GetValue().ToDouble(&treble);
|
||||
mLevelT->GetValue().ToDouble(&level);
|
||||
mbNormalize = mNormalizeCheckBox->GetValue();
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
// handler implementations for BassTrebleDialog
|
||||
void BassTrebleDialog::OnNormalize(wxCommandEvent& WXUNUSED(evt))
|
||||
{
|
||||
UpdateUI();
|
||||
}
|
||||
|
||||
void BassTrebleDialog::UpdateUI()
|
||||
{
|
||||
bool enable = mNormalizeCheckBox->GetValue();
|
||||
double v0, v1, v2;
|
||||
wxString val0 = mBassT->GetValue();
|
||||
val0.ToDouble(&v0);
|
||||
wxString val1 = mTrebleT->GetValue();
|
||||
val1.ToDouble(&v1);
|
||||
wxString val2 = mLevelT->GetValue();
|
||||
val2.ToDouble(&v2);
|
||||
|
||||
// Disallow level control if disabled
|
||||
mLevelT->Enable(enable);
|
||||
mLevelS->Enable(enable);
|
||||
|
||||
wxButton *ok = (wxButton *) FindWindow(wxID_OK);
|
||||
wxButton *preview = (wxButton *) FindWindow(ID_EFFECT_PREVIEW);
|
||||
|
||||
if (v0==0 && v1==0 && !enable)
|
||||
{
|
||||
// Disallow OK if nothing to do (but allow preview)
|
||||
ok->Enable(false);
|
||||
preview->Enable(true);
|
||||
mWarning->SetLabel(_(" No change to apply."));
|
||||
}
|
||||
else
|
||||
{
|
||||
if ((v2 > 0) && enable)
|
||||
{
|
||||
// Disallow OK and Preview if level enabled and > 0
|
||||
ok->Enable(false);
|
||||
preview->Enable(false);
|
||||
mWarning->SetLabel(_(": Maximum 0 dB."));
|
||||
}
|
||||
else
|
||||
{
|
||||
// OK and Preview enabled
|
||||
ok->Enable(true);
|
||||
preview->Enable(true);
|
||||
mWarning->SetLabel(wxT(""));
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// handler implementations for BassTrebleDialog
|
||||
void BassTrebleDialog::OnBassText(wxCommandEvent & WXUNUSED(event))
|
||||
{
|
||||
long val;
|
||||
|
||||
mBassT->GetValue().ToLong(&val);
|
||||
mBassS->SetValue(TrapLong(val, BASS_MIN, BASS_MAX));
|
||||
double val;
|
||||
mBassT->GetValue().ToDouble(&val);
|
||||
int newval = floor(val / 0.1 + 0.5);
|
||||
mBassS->SetValue(TrapDouble(newval, BASS_MIN, BASS_MAX));
|
||||
UpdateUI();
|
||||
}
|
||||
|
||||
void BassTrebleDialog::OnTrebleText(wxCommandEvent & WXUNUSED(event))
|
||||
{
|
||||
long val;
|
||||
|
||||
mTrebleT->GetValue().ToLong(&val);
|
||||
mTrebleS->SetValue(TrapLong(val, TREBLE_MIN, TREBLE_MAX));
|
||||
double val;
|
||||
mTrebleT->GetValue().ToDouble(&val);
|
||||
int newval = floor(val / 0.1 + 0.5);
|
||||
mTrebleS->SetValue(TrapDouble(newval, TREBLE_MIN, TREBLE_MAX));
|
||||
UpdateUI();
|
||||
}
|
||||
|
||||
void BassTrebleDialog::OnGainText(wxCommandEvent & WXUNUSED(event))
|
||||
void BassTrebleDialog::OnLevelText(wxCommandEvent & WXUNUSED(event))
|
||||
{
|
||||
long val;
|
||||
|
||||
mGainT->GetValue().ToLong(&val);
|
||||
mGainS->SetValue(TrapLong(val, GAIN_MIN, GAIN_MAX));
|
||||
double val;
|
||||
mLevelT->GetValue().ToDouble(&val);
|
||||
int newval = floor(val / 0.1 + 0.5);
|
||||
mLevelS->SetValue(TrapDouble(newval, LEVEL_MIN, LEVEL_MAX));
|
||||
UpdateUI();
|
||||
}
|
||||
|
||||
void BassTrebleDialog::OnBassSlider(wxCommandEvent & WXUNUSED(event))
|
||||
{
|
||||
mBassT->SetValue(wxString::Format(wxT("%d"), mBassS->GetValue()));
|
||||
mBassT->SetValue(wxString::Format(wxT("%.1f"), mBassS->GetValue() * 0.1));
|
||||
UpdateUI();
|
||||
}
|
||||
|
||||
void BassTrebleDialog::OnTrebleSlider(wxCommandEvent & WXUNUSED(event))
|
||||
{
|
||||
mTrebleT->SetValue(wxString::Format(wxT("%d"), mTrebleS->GetValue()));
|
||||
mTrebleT->SetValue(wxString::Format(wxT("%.1f"), mTrebleS->GetValue() * 0.1));
|
||||
UpdateUI();
|
||||
}
|
||||
|
||||
void BassTrebleDialog::OnGainSlider(wxCommandEvent & WXUNUSED(event))
|
||||
void BassTrebleDialog::OnLevelSlider(wxCommandEvent & WXUNUSED(event))
|
||||
{
|
||||
mGainT->SetValue(wxString::Format(wxT("%d"), mGainS->GetValue()));
|
||||
mLevelT->SetValue(wxString::Format(wxT("%.1f"), mLevelS->GetValue() * 0.1));
|
||||
UpdateUI();
|
||||
}
|
||||
|
||||
void BassTrebleDialog::OnPreview(wxCommandEvent & WXUNUSED(event))
|
||||
|
|
@ -320,14 +481,17 @@ void BassTrebleDialog::OnPreview(wxCommandEvent & WXUNUSED(event))
|
|||
// Save & restore parameters around Preview, because we didn't do OK.
|
||||
double oldBass = mEffect->dB_bass;
|
||||
double oldTreble = mEffect->dB_treble;
|
||||
double oldGain = mEffect->dB_gain;
|
||||
double oldLevel = mEffect->dB_level;
|
||||
bool oldUseGain = mEffect->mbNormalize;
|
||||
|
||||
mEffect->dB_bass = bass;
|
||||
mEffect->dB_treble = treble;
|
||||
mEffect->dB_gain = gain;
|
||||
mEffect->dB_level = level;
|
||||
mEffect->mbNormalize = mbNormalize;
|
||||
mEffect->Preview();
|
||||
|
||||
mEffect->dB_bass = oldBass;
|
||||
mEffect->dB_treble = oldTreble;
|
||||
mEffect->dB_gain = oldGain;
|
||||
mEffect->dB_level = oldLevel;
|
||||
mEffect->mbNormalize = oldUseGain;
|
||||
}
|
||||
|
|
|
|||
|
|
@ -12,18 +12,13 @@
|
|||
#ifndef __AUDACITY_EFFECT_BASS_TREBLE__
|
||||
#define __AUDACITY_EFFECT_BASS_TREBLE__
|
||||
|
||||
#include "SimpleMono.h"
|
||||
|
||||
#include <wx/dialog.h>
|
||||
#include <wx/intl.h>
|
||||
#include <wx/slider.h>
|
||||
#include "TwoPassSimpleMono.h"
|
||||
|
||||
class wxSizer;
|
||||
class wxTextCtrl;
|
||||
|
||||
class WaveTrack;
|
||||
|
||||
class EffectBassTreble:public EffectSimpleMono {
|
||||
class EffectBassTreble: public EffectTwoPassSimpleMono {
|
||||
|
||||
public:
|
||||
EffectBassTreble();
|
||||
|
|
@ -51,15 +46,22 @@ class EffectBassTreble:public EffectSimpleMono {
|
|||
|
||||
virtual bool PromptUser();
|
||||
virtual bool TransferParameters( Shuttle & shuttle );
|
||||
virtual bool Init();
|
||||
|
||||
protected:
|
||||
|
||||
virtual bool NewTrackSimpleMono();
|
||||
virtual bool ProcessSimpleMono(float *buffer, sampleCount len);
|
||||
virtual bool ProcessPass1(float *buffer, sampleCount len);
|
||||
virtual bool ProcessPass2(float *buffer, sampleCount len);
|
||||
|
||||
void Coefficents(double hz, float slope, double gain, int type,
|
||||
float& a0, float& a1, float& a2, float& b0, float& b1, float& b2);
|
||||
|
||||
private:
|
||||
/* filter co-efficent values */
|
||||
// Low shelf
|
||||
virtual bool NewTrackPass1();
|
||||
virtual bool InitPass1();
|
||||
virtual bool InitPass2();
|
||||
float DoFilter(float in);
|
||||
|
||||
float xn1Bass, xn2Bass, yn1Bass, yn2Bass,
|
||||
wBass, swBass, cwBass, aBass, bBass,
|
||||
a0Bass, a1Bass, a2Bass, b0Bass, b1Bass, b2Bass;
|
||||
|
|
@ -68,7 +70,10 @@ class EffectBassTreble:public EffectSimpleMono {
|
|||
wTreble, swTreble, cwTreble, aTreble, bTreble,
|
||||
b0Treble, b1Treble, b2Treble, a0Treble, a1Treble, a2Treble;
|
||||
|
||||
double dB_bass, dB_treble, dB_gain;
|
||||
double dB_bass, dB_treble, dB_level;
|
||||
double mMax;
|
||||
bool mbNormalize;
|
||||
double mPreGain;
|
||||
|
||||
friend class BassTrebleDialog;
|
||||
};
|
||||
|
|
@ -92,29 +97,34 @@ class BassTrebleDialog:public EffectDialog {
|
|||
// handler declarations for BassTrebleDialog
|
||||
void OnBassText(wxCommandEvent & event);
|
||||
void OnTrebleText(wxCommandEvent & event);
|
||||
void OnGainText(wxCommandEvent & event);
|
||||
void OnLevelText(wxCommandEvent & event);
|
||||
void OnBassSlider(wxCommandEvent & event);
|
||||
void OnTrebleSlider(wxCommandEvent & event);
|
||||
void OnGainSlider(wxCommandEvent & event);
|
||||
void OnLevelSlider(wxCommandEvent & event);
|
||||
void OnNormalize(wxCommandEvent& evt);
|
||||
void UpdateUI();
|
||||
void OnPreview(wxCommandEvent & event);
|
||||
void set_properties();
|
||||
|
||||
private:
|
||||
wxSlider *mBassS;
|
||||
wxSlider *mTrebleS;
|
||||
wxSlider *mGainS;
|
||||
wxSlider *mLevelS;
|
||||
wxTextCtrl *mBassT;
|
||||
wxTextCtrl *mTrebleT;
|
||||
wxTextCtrl *mGainT;
|
||||
wxTextCtrl *mLevelT;
|
||||
wxCheckBox *mNormalizeCheckBox;
|
||||
|
||||
DECLARE_EVENT_TABLE()
|
||||
wxStaticText* mWarning;
|
||||
|
||||
public:
|
||||
EffectBassTreble *mEffect;
|
||||
|
||||
float bass;
|
||||
float treble;
|
||||
float gain;
|
||||
|
||||
double bass;
|
||||
double treble;
|
||||
double level;
|
||||
bool mbNormalize;
|
||||
};
|
||||
|
||||
#endif
|
||||
|
|
|
|||
Loading…
Reference in New Issue