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AudMeS.cpp
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// -*- C++ -*- generated by wxGlade 0.3.1 on Wed Sep 29 16:09:00 2004
/*
* Copyright (C) 2008 Vaclav Peroutka <[email protected]>
*
* Licensed under the GNU General Public License Version 2
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
#include "AudMeS.h"
#include <math.h>
#ifdef __WXMSW__
#include <windows.h>
#endif
#include <libfccp/csv.h>
#include <atomic>
#include <fstream>
#include <iostream>
#include "dlg_audiointerface.h"
#include "event_ids.h"
#include "fourier.h"
wxIMPLEMENT_CLASS(MainFrame, wxFrame);
wxBEGIN_EVENT_TABLE(MainFrame, wxFrame)
EVT_TOGGLEBUTTON(ID_SPANSTART, MainFrame::OnSpanStart)
EVT_TOGGLEBUTTON(ID_GENSTART, MainFrame::OnGenStart)
EVT_TOGGLEBUTTON(ID_OSCSTART, MainFrame::OnOscStart)
EVT_TOGGLEBUTTON(ID_FRMSTART, MainFrame::OnFrmStart)
EVT_MENU(wxID_ABOUT, MainFrame::OnAboutClick)
EVT_MENU(wxID_EXIT, MainFrame::OnExitClick)
EVT_CLOSE(MainFrame::OnClose)
EVT_MENU(ID_SNDCARD, MainFrame::OnSelectSndCard)
EVT_TIMER(ID_TIMERID, MainFrame::OnTimer)
EVT_CHECKBOX(ID_GENLENB, MainFrame::OnGeneratorChanged)
EVT_CHECKBOX(ID_GENRENB, MainFrame::OnGeneratorChanged)
EVT_CHECKBOX(ID_GENSYNC, MainFrame::OnGeneratorChanged)
EVT_TEXT_ENTER(ID_GENPHASE, MainFrame::OnGeneratorChanged)
EVT_COMMAND_SCROLL(ID_GENLFREQ, MainFrame::OnGenScrollLChanged)
EVT_COMMAND_SCROLL(ID_GENRFREQ, MainFrame::OnGenScrollRChanged)
EVT_COMMAND_SCROLL(ID_GENLAMP, MainFrame::OnGenScrollChanged)
EVT_COMMAND_SCROLL(ID_GENRAMP, MainFrame::OnGenScrollChanged)
EVT_CHOICE(ID_OSCLTRIG, MainFrame::OnOscChoiceChanged)
EVT_CHOICE(ID_OSCRTRIG, MainFrame::OnOscChoiceChanged)
EVT_TEXT_ENTER(ID_TXT_FREQ_L, MainFrame::OnTxtFreqLChanged)
EVT_TEXT_ENTER(ID_TXT_FREQ_R, MainFrame::OnTxtFreqRChanged)
EVT_CHOICE(ID_GENSHP_L, MainFrame::OnGeneratorChanged)
EVT_CHOICE(ID_GENSHP_R, MainFrame::OnGeneratorChanged)
EVT_MENU(wxID_OPEN, MainFrame::OnOpenClick)
EVT_MENU(wxID_SAVE, MainFrame::OnSaveClick)
EVT_MENU(wxID_SAVEAS, MainFrame::OnSaveAsClick)
EVT_MENU(ID_LOAD_FRM, MainFrame::OnLoadFRM)
EVT_MENU(ID_SAVE_FRM, MainFrame::OnSaveFRM)
EVT_MENU(ID_SAVE_SPE, MainFrame::OnSaveSPE)
EVT_MENU(ID_SAVE_OSC, MainFrame::OnSaveOSC)
EVT_BUTTON(ID_AUTOCAL, MainFrame::OnAutoCalClick)
EVT_CHOICE(ID_OSCXSCALE, MainFrame::OnOscXScaleChanged)
EVT_CHOICE(ID_FFTLENGTH, MainFrame::OnOscXScaleChanged)
EVT_CHOICE(ID_FFTAVG, MainFrame::OnFFTAvgChanged)
EVT_CHOICE(ID_FFTREF, MainFrame::OnFFTScaleChanged)
EVT_CHOICE(ID_FFTDBDIV, MainFrame::OnFFTScaleChanged)
wxEND_EVENT_TABLE()
float* g_OscBuffer_Left;
float* g_OscBuffer_Right;
long int g_OscBufferPosition;
float* g_SpeBuffer_Left;
float* g_SpeBuffer_Right;
long int g_SpeBufferPosition;
std::atomic<bool> g_OscBufferChanged{false};
std::atomic<bool> g_SpeBufferChanged{false};
///////////////////////////////////////////////////////////////////////
MainFrame::MainFrame(wxWindow* parent, int id, const wxString& title, const wxPoint& pos,
const wxSize& size, long WXUNUSED(style))
: wxFrame(parent, id, title, pos, size, wxDEFAULT_FRAME_STYLE | wxFULL_REPAINT_ON_RESIZE) {
// begin wxGlade: MainFrame::MainFrame
notebook_1 = new wxNotebook(this, -1, wxDefaultPosition, wxDefaultSize, wxNB_BOTTOM);
notebook_1_spe = new wxPanel(notebook_1, -1);
notebook_1_osc = new wxPanel(notebook_1, -1);
notebook_1_gen = new wxPanel(notebook_1, -1);
notebook_1_frm = new wxPanel(notebook_1, -1);
sizer_gen_l_staticbox = new wxStaticBox(notebook_1_gen, -1, wxT("Left channel"));
sizer_gen_r_staticbox = new wxStaticBox(notebook_1_gen, -1, wxT("Right channel"));
sizer_osc_l_staticbox = new wxStaticBox(notebook_1_osc, -1, wxT("Vertical Left"));
sizer_osc_r_staticbox = new wxStaticBox(notebook_1_osc, -1, wxT("Vertical Right"));
sizer_osc_h_staticbox = new wxStaticBox(notebook_1_osc, -1, wxT("Horizontal"));
sizer_spe_fft_staticbox = new wxStaticBox(notebook_1_spe, -1, wxT("FFT"));
sizer_spe_disp_staticbox = new wxStaticBox(notebook_1_spe, -1, wxT("Display"));
sizer_spe_scale_staticbox = new wxStaticBox(notebook_1_spe, -1, wxT("Scale"));
frame_1_menubar = new wxMenuBar();
wxMenu* wxglade_tmp_menu_1 = new wxMenu();
wxglade_tmp_menu_1->Append(wxID_OPEN, wxT("&Open config...\tAlt+O"), wxT(""), wxITEM_NORMAL);
wxglade_tmp_menu_1->Append(wxID_SAVE, wxT("&Save config...\tAlt+S"), wxT(""), wxITEM_NORMAL);
wxglade_tmp_menu_1->Append(wxID_SAVEAS, wxT("Save &As"), wxT(""), wxITEM_NORMAL);
wxglade_tmp_menu_1->Append(ID_LOAD_FRM, wxT("Load freq.resp."), wxT(""), wxITEM_NORMAL);
wxglade_tmp_menu_1->Append(ID_SAVE_FRM, wxT("Save freq.resp."), wxT(""), wxITEM_NORMAL);
wxglade_tmp_menu_1->Append(ID_SAVE_SPE, wxT("Save spectrum"), wxT(""), wxITEM_NORMAL);
wxglade_tmp_menu_1->Append(ID_SAVE_OSC, wxT("Save oscillogram"), wxT(""), wxITEM_NORMAL);
wxglade_tmp_menu_1->AppendSeparator();
wxglade_tmp_menu_1->Append(wxID_EXIT, wxT("&Close\tAlt+F4"), wxT(""), wxITEM_NORMAL);
frame_1_menubar->Append(wxglade_tmp_menu_1, wxT("&File"));
wxMenu* wxglade_tmp_menu_2 = new wxMenu();
wxglade_tmp_menu_2->Append(ID_SNDCARD, wxT("Audio &Interface Configuration..."), wxT(""),
wxITEM_NORMAL);
frame_1_menubar->Append(wxglade_tmp_menu_2, wxT("&Tools"));
wxMenu* wxglade_tmp_menu_3 = new wxMenu();
wxglade_tmp_menu_3->Append(wxID_ABOUT, wxT("&About..."), wxT(""), wxITEM_NORMAL);
frame_1_menubar->Append(wxglade_tmp_menu_3, wxT("&Help"));
SetMenuBar(frame_1_menubar);
frame_1_statusbar = CreateStatusBar(1, 0);
/* generator panel */
checkbox_l_en = new wxCheckBox(notebook_1_gen, ID_GENLENB, wxT("Enable Output"));
label_gen_wave_l = new wxStaticText(notebook_1_gen, -1, wxT("Waveform: "));
const wxString choice_l_wav_choices[] = {wxT("Sine"), wxT("Rectangular"), wxT("Saw"),
wxT("Triangle"), wxT("Wh-Noise")};
choice_l_wav = new wxChoice(notebook_1_gen, ID_GENSHP_L, wxDefaultPosition, wxDefaultSize, 5,
choice_l_wav_choices, 0);
label__gen_freq_l = new wxStaticText(notebook_1_gen, -1, wxT("Frequency [20..20000Hz]: "));
slide_l_fr = new wxSlider(notebook_1_gen, ID_GENLFREQ, 80, 0, 200);
label_gen_ampl_l = new wxStaticText(notebook_1_gen, -1, wxT("Amplitude [0..-60dB]: "));
slide_l_am = new wxSlider(notebook_1_gen, ID_GENLAMP, 0, -60, 0);
checkbox_r_en = new wxCheckBox(notebook_1_gen, ID_GENRENB, wxT("Enable Output"));
label_gen_wave_r = new wxStaticText(notebook_1_gen, -1, wxT("Waveform: "));
const wxString choice_r_wav_choices[] = {wxT("Sine"), wxT("Rectangular"), wxT("Saw"),
wxT("Triangle"), wxT("Wh-Noise")};
choice_r_wav = new wxChoice(notebook_1_gen, ID_GENSHP_R, wxDefaultPosition, wxDefaultSize, 5,
choice_r_wav_choices, 0);
label_gen_freq_r = new wxStaticText(notebook_1_gen, -1, wxT("Frequency [20..20000Hz]: "));
slide_r_fr = new wxSlider(notebook_1_gen, ID_GENRFREQ, 80, 0, 200);
label_gen_ampl_r = new wxStaticText(notebook_1_gen, -1, wxT("Amplitude [0..-60dB]: "));
slide_r_am = new wxSlider(notebook_1_gen, ID_GENRAMP, 0, -60, 0);
button_gen_start = new wxToggleButton(notebook_1_gen, ID_GENSTART, wxT("Start"));
checkbox_gen_sync = new wxCheckBox(notebook_1_gen, ID_GENSYNC, wxT("L and R are synchronized"));
label_gen_sync =
new wxStaticText(notebook_1_gen, -1, wxT("Phase between L and R [0..360 degrees]: "));
text_gen_sync = new wxTextCtrl(notebook_1_gen, ID_GENPHASE, wxT("0"), wxDefaultPosition,
wxDefaultSize, wxTE_PROCESS_ENTER);
txt_freq_l = new wxTextCtrl(notebook_1_gen, ID_TXT_FREQ_L, wxT("315.0"), wxDefaultPosition,
wxDefaultSize, wxTE_PROCESS_ENTER);
txt_freq_r = new wxTextCtrl(notebook_1_gen, ID_TXT_FREQ_R, wxT("315.0"), wxDefaultPosition,
wxDefaultSize, wxTE_PROCESS_ENTER);
/* oscilloscope panel */
window_osc = new CtrlOScope(notebook_1_osc, _T(""), _T(""));
label_osc_div_l = new wxStaticText(notebook_1_osc, -1, wxT("[V/div]: "));
const wxString choice_osc_l_res_choices[] = {
wxT("0.2"), wxT("0.1"), wxT("50m"), wxT("20m"), wxT("10m"), wxT("5m"), wxT("2m"),
wxT("1m"), wxT("500u"), wxT("200u"), wxT("100u"), wxT("50u"), wxT("20u"), wxT("10u"),
};
choice_osc_l_res = new wxChoice(notebook_1_osc, -1, wxDefaultPosition, wxDefaultSize, 14,
choice_osc_l_res_choices, 0);
label_osc_off_l = new wxStaticText(notebook_1_osc, -1, wxT("Offset: "));
const wxString choice_osc_l_off_choices[] = {wxT("1"), wxT("0.8"), wxT("0.6"), wxT("0.4"),
wxT("0.2"), wxT("0"), wxT("-0.2"), wxT("-0.4"),
wxT("-0.6"), wxT("-0.8"), wxT("-1")};
choice_osc_l_off = new wxChoice(notebook_1_osc, -1, wxDefaultPosition, wxDefaultSize, 11,
choice_osc_l_off_choices, 0);
label_osc_div_r = new wxStaticText(notebook_1_osc, -1, wxT("[V/div]: "));
const wxString choice_osc_r_res_choices[] = {
wxT("0.2"), wxT("0.1"), wxT("50m"), wxT("20m"), wxT("10m"), wxT("5m"), wxT("2m"),
wxT("1m"), wxT("500u"), wxT("200u"), wxT("100u"), wxT("50u"), wxT("20u"), wxT("10u"),
};
choice_osc_r_res = new wxChoice(notebook_1_osc, -1, wxDefaultPosition, wxDefaultSize, 14,
choice_osc_r_res_choices, 0);
label_osc_off_r = new wxStaticText(notebook_1_osc, -1, wxT("Offset: "));
const wxString choice_osc_r_off_choices[] = {wxT("1"), wxT("0.8"), wxT("0.6"), wxT("0.4"),
wxT("0.2"), wxT("0"), wxT("-0.2"), wxT("-0.4"),
wxT("-0.6"), wxT("-0.8"), wxT("-1")};
choice_osc_r_off = new wxChoice(notebook_1_osc, -1, wxDefaultPosition, wxDefaultSize, 11,
choice_osc_r_off_choices, 0);
button_autocalibrate = new wxButton(notebook_1_osc, ID_AUTOCAL, wxT("Vertical Auto Range"));
const wxString choice_osc_swp_choices[] = {
wxT("10"), wxT("20"), wxT("50"), wxT("100"), wxT("200"), wxT("500"),
wxT("1000"), wxT("2000"), wxT("5000"), wxT("10000"), wxT("20000"), wxT("50000"),
};
choice_osc_swp = new wxChoice(notebook_1_osc, ID_OSCXSCALE, wxDefaultPosition, wxDefaultSize, 12,
choice_osc_swp_choices, 0);
label_osc_time = new wxStaticText(notebook_1_osc, -1, wxT("Time [us/div]: "));
// triggering control
label_8 = new wxStaticText(notebook_1_osc, -1, wxT("Trigger: "));
const wxString choice_osc_trig_source_choices[] = {wxT("Off"), wxT("Left channel"),
wxT("Right channel")};
choice_osc_trig_source = new wxChoice(notebook_1_osc, ID_OSCLTRIG, wxDefaultPosition,
wxDefaultSize, 3, choice_osc_trig_source_choices, 0);
label_osc_trig = new wxStaticText(notebook_1_osc, -1, wxT("Trigger edge: "));
const wxString choice_osc_trig_edge_choices[] = {wxT("Rising edge"), wxT("Falling edge")};
choice_osc_trig_edge = new wxChoice(notebook_1_osc, ID_OSCRTRIG, wxDefaultPosition, wxDefaultSize,
2, choice_osc_trig_edge_choices, 0);
button_osc_start = new wxToggleButton(notebook_1_osc, ID_OSCSTART, wxT("Start"));
/* Spectrum analyzer */
label_5 = new wxStaticText(notebook_1_spe, -1, wxT("FFT Window Type:"));
const wxString choice_fft_choices[] = {wxT("Rect"), wxT("Hanning"), wxT("Blackman"),
wxT("BlackHarr")};
choice_fft = new wxChoice(notebook_1_spe, ID_FFTWINDOW, wxDefaultPosition, wxDefaultSize, 4,
choice_fft_choices, 0);
label_9 = new wxStaticText(notebook_1_spe, -1, wxT("Number of samples:"));
const wxString choice_fftlength_choices[] = {wxT("128"), wxT("256"), wxT("512"), wxT("1024"),
wxT("2048"), wxT("4096"), wxT("8192"), wxT("16384"),
wxT("32768"), wxT("65536")};
choice_fftlength = new wxChoice(notebook_1_spe, ID_FFTLENGTH, wxDefaultPosition, wxDefaultSize,
10, choice_fftlength_choices, 0);
label_rx = new wxStaticText(notebook_1_spe, -1, wxT("Freq:"));
const wxString choice_fftry_choices[] = {wxT("2-2000"), wxT("20-20k"), wxT("10-100k")};
choice_fftrx = new wxChoice(notebook_1_spe, ID_FFTWINDOW, wxDefaultPosition, wxDefaultSize, 3,
choice_fftry_choices, 0);
label_avg = new wxStaticText(notebook_1_spe, -1, wxT("Averaging (N):"));
const wxString choice_fftavg_choices[] = {wxT("1"), wxT("2"), wxT("5"), wxT("10"), wxT("20")};
choice_fftavg = new wxChoice(notebook_1_spe, ID_FFTAVG, wxDefaultPosition, wxDefaultSize, 5,
choice_fftavg_choices, 0);
label_spe_ref = new wxStaticText(notebook_1_spe, -1, wxT("Ref Level [dB]"));
const wxString choice_spe_ref_choices[] = {wxT("0"), wxT("-10"), wxT("-20"),
wxT("-30"), wxT("-40"), wxT("-50")};
choice_spe_ref = new wxChoice(notebook_1_spe, ID_FFTREF, wxDefaultPosition, wxDefaultSize, 6,
choice_spe_ref_choices, 0);
label_spe_dbdiv = new wxStaticText(notebook_1_spe, -1, wxT("Amplitude [dB/div]"));
const wxString choice_spe_dbdiv_choices[] = {wxT("3"), wxT("5"), wxT("10")};
choice_spe_dbdiv = new wxChoice(notebook_1_spe, ID_FFTDBDIV, wxDefaultPosition, wxDefaultSize, 3,
choice_spe_dbdiv_choices, 0);
window_1_spe = new CtrlOScope(notebook_1_spe, _T("Hz"), _T("dB"));
button_spe_start = new wxToggleButton(notebook_1_spe, ID_SPANSTART, wxT("Start"));
/* Frequency response */
label_1_frm = new wxStaticText(notebook_1_frm, -1, wxT("Number of points (max 120):"));
text_ctrl1_frm = new wxTextCtrl(notebook_1_frm, -1, wxT("24"));
label_2_frm = new wxStaticText(notebook_1_frm, -1, wxT("-"));
text_ctrl2_frm = new wxTextCtrl(notebook_1_frm, -1, wxT("-"));
button_frm_start = new wxToggleButton(notebook_1_frm, ID_FRMSTART, wxT("Start"));
window_1_frm = new CtrlOScope(notebook_1_frm, _T("Hz"), _T("dB"));
set_properties();
do_layout();
// end wxGlade
set_custom_props();
}
void MainFrame::set_properties() {
// begin wxGlade: MainFrame::set_properties
SetTitle(wxT("AUDio MEasurement System"));
int frame_1_statusbar_widths[] = {-1};
frame_1_statusbar->SetStatusWidths(1, frame_1_statusbar_widths);
frame_1_statusbar->SetStatusText("AUDio MEasurement System - version " AUDMES_VERSION_STRING);
choice_l_wav->SetSelection(0);
choice_r_wav->SetSelection(0);
choice_osc_swp->SetSelection(6);
choice_osc_l_res->SetSelection(0);
choice_osc_l_off->SetSelection(0);
choice_osc_trig_source->SetSelection(0);
choice_osc_r_res->SetSelection(0);
choice_osc_r_off->SetSelection(0);
choice_osc_trig_edge->SetSelection(0);
choice_fft->SetSelection(1);
choice_fftlength->SetSelection(4);
choice_fftrx->SetSelection(2);
choice_fftavg->SetSelection(0);
choice_spe_ref->SetSelection(0);
choice_spe_dbdiv->SetSelection(2);
// end wxGlade
}
void MainFrame::do_layout() {
// begin wxGlade: MainFrame::do_layout
wxBoxSizer* sizer_notebook = new wxBoxSizer(wxVERTICAL);
wxBoxSizer* sizer_2 = new wxBoxSizer(wxVERTICAL);
wxBoxSizer* sizer_3 = new wxBoxSizer(wxHORIZONTAL);
wxBoxSizer* sizer_spe_9 = new wxBoxSizer(wxVERTICAL);
wxBoxSizer* sizer_spe_10 = new wxBoxSizer(wxHORIZONTAL);
wxBoxSizer* sizer_9 = new wxBoxSizer(wxVERTICAL);
wxBoxSizer* sizer_10 = new wxBoxSizer(wxHORIZONTAL);
wxBoxSizer* sizer_11 = new wxBoxSizer(wxVERTICAL);
wxStaticBoxSizer* sizer_12L = new wxStaticBoxSizer(sizer_osc_l_staticbox, wxVERTICAL);
wxBoxSizer* sizer_16L = new wxBoxSizer(wxHORIZONTAL);
wxBoxSizer* sizer_15L = new wxBoxSizer(wxHORIZONTAL);
wxBoxSizer* sizer_14L = new wxBoxSizer(wxHORIZONTAL);
wxStaticBoxSizer* sizer_12R = new wxStaticBoxSizer(sizer_osc_r_staticbox, wxVERTICAL);
wxStaticBoxSizer* sizer_12H = new wxStaticBoxSizer(sizer_osc_h_staticbox, wxVERTICAL);
wxBoxSizer* sizer_16R = new wxBoxSizer(wxHORIZONTAL);
wxBoxSizer* sizer_15R = new wxBoxSizer(wxHORIZONTAL);
wxBoxSizer* sizer_14R = new wxBoxSizer(wxHORIZONTAL);
wxBoxSizer* sizer_13 = new wxBoxSizer(wxHORIZONTAL);
wxStaticBoxSizer* sizer_GenEnL = new wxStaticBoxSizer(sizer_gen_l_staticbox, wxVERTICAL);
wxStaticBoxSizer* sizer_GenEnR = new wxStaticBoxSizer(sizer_gen_r_staticbox, wxVERTICAL);
wxBoxSizer* sizer_gen_sync = new wxBoxSizer(wxHORIZONTAL);
wxBoxSizer* sizer_gen_sync2 = new wxBoxSizer(wxHORIZONTAL);
wxBoxSizer* sizer_9_frm = new wxBoxSizer(wxVERTICAL);
wxBoxSizer* sizer_10_frm = new wxBoxSizer(wxVERTICAL);
wxBoxSizer* sizer_17_frm = new wxBoxSizer(wxHORIZONTAL);
wxBoxSizer* sizer_txtfreql = new wxBoxSizer(wxVERTICAL);
wxBoxSizer* sizer_txtfreqr = new wxBoxSizer(wxVERTICAL);
wxFlexGridSizer* sizer_GenL = new wxFlexGridSizer(3, 2, 5, 5);
wxFlexGridSizer* sizer_GenR = new wxFlexGridSizer(3, 2, 5, 5);
wxBoxSizer* sizer_spe_ctrl = new wxBoxSizer(wxVERTICAL);
wxBoxSizer* sizer_spe_window = new wxBoxSizer(wxHORIZONTAL);
wxBoxSizer* sizer_spe_samples = new wxBoxSizer(wxHORIZONTAL);
wxBoxSizer* sizer_spe_span = new wxBoxSizer(wxHORIZONTAL);
wxBoxSizer* sizer_spe_avg = new wxBoxSizer(wxHORIZONTAL);
wxBoxSizer* sizer_spe_ref = new wxBoxSizer(wxHORIZONTAL);
wxBoxSizer* sizer_spe_dbdiv = new wxBoxSizer(wxHORIZONTAL);
wxStaticBoxSizer* sizer_spe_fft = new wxStaticBoxSizer(sizer_spe_fft_staticbox, wxVERTICAL);
wxStaticBoxSizer* sizer_spe_disp = new wxStaticBoxSizer(sizer_spe_disp_staticbox, wxVERTICAL);
wxStaticBoxSizer* sizer_spe_scale = new wxStaticBoxSizer(sizer_spe_scale_staticbox, wxVERTICAL);
// generator
sizer_GenEnL->Add(checkbox_l_en, 0, wxALL | wxALIGN_CENTER_HORIZONTAL | wxALIGN_CENTER_VERTICAL,
5);
sizer_GenL->Add(label_gen_wave_l, 0, wxALL | wxALIGN_LEFT | wxALIGN_CENTER_VERTICAL, 5);
sizer_GenL->Add(choice_l_wav, 1, wxALL | wxEXPAND, 5);
sizer_GenL->Add(label__gen_freq_l, 0, wxALL | wxALIGN_LEFT | wxALIGN_CENTER_VERTICAL, 5);
sizer_txtfreql->Add(slide_l_fr, 0, wxEXPAND, 5);
sizer_txtfreql->Add(txt_freq_l, wxALL | wxEXPAND, 5);
sizer_GenL->Add(sizer_txtfreql, 1, wxALL | wxEXPAND, 5);
sizer_GenL->Add(label_gen_ampl_l, 0, wxALL | wxALIGN_LEFT | wxALIGN_CENTER_VERTICAL, 5);
sizer_GenL->Add(slide_l_am, 1, wxEXPAND, 5);
sizer_GenEnL->Add(sizer_GenL, 0, wxALL | wxEXPAND, 5);
sizer_3->Add(sizer_GenEnL, 0, wxALL | wxEXPAND, 5);
sizer_GenEnR->Add(checkbox_r_en, 0, wxALL | wxALIGN_CENTER_HORIZONTAL | wxALIGN_CENTER_VERTICAL,
5);
sizer_GenR->Add(label_gen_wave_r, 0, wxALL | wxALIGN_LEFT | wxALIGN_CENTER_VERTICAL, 5);
sizer_GenR->Add(choice_r_wav, 1, wxALL | wxEXPAND, 5);
sizer_GenR->Add(label_gen_freq_r, 0, wxALL | wxALIGN_LEFT | wxALIGN_CENTER_VERTICAL, 5);
sizer_txtfreqr->Add(slide_r_fr, 0, wxEXPAND, 5);
sizer_txtfreqr->Add(txt_freq_r, wxALL | wxEXPAND, 5);
sizer_GenR->Add(sizer_txtfreqr, 1, wxALL | wxEXPAND, 5);
sizer_GenR->Add(label_gen_ampl_r, 0, wxALL | wxALIGN_LEFT | wxALIGN_CENTER_VERTICAL, 5);
sizer_GenR->Add(slide_r_am, 1, wxEXPAND, 5);
sizer_GenEnR->Add(sizer_GenR, 0, wxALL | wxEXPAND, 5);
sizer_3->Add(sizer_GenEnR, 0, wxALL | wxEXPAND, 5);
sizer_2->Add(sizer_3, 0, wxALIGN_CENTER_HORIZONTAL, 0);
sizer_gen_sync->Add(checkbox_gen_sync, 0,
wxALL | wxALIGN_CENTER_HORIZONTAL | wxALIGN_CENTER_VERTICAL, 5);
sizer_gen_sync2->Add(label_gen_sync, 0,
wxALL | wxALIGN_CENTER_HORIZONTAL | wxALIGN_CENTER_VERTICAL, 5);
sizer_gen_sync2->Add(text_gen_sync, 0,
wxALL | wxALIGN_CENTER_HORIZONTAL | wxALIGN_CENTER_VERTICAL, 5);
sizer_2->Add(sizer_gen_sync, 0, wxALIGN_CENTER_HORIZONTAL, 0);
sizer_2->Add(sizer_gen_sync2, 0, wxALIGN_CENTER_HORIZONTAL, 0);
sizer_2->Add(button_gen_start, 0, wxALL | wxALIGN_CENTER_HORIZONTAL | wxALIGN_CENTER_VERTICAL, 5);
notebook_1_gen->SetAutoLayout(true);
notebook_1_gen->SetSizer(sizer_2);
sizer_2->Fit(notebook_1_gen);
sizer_2->SetSizeHints(notebook_1_gen);
// oscilloscope
sizer_10->Add(window_osc, 1, wxEXPAND, 0); // CtrlOScope
// sizer_14: wxHorizontal
sizer_14L->Add(label_osc_div_l, 0, wxLEFT | wxALIGN_CENTER_HORIZONTAL | wxALIGN_CENTER_VERTICAL,
5); // Res[V/Div]
sizer_14L->Add(5, 5, 1, 0, 0); // spacer
sizer_14L->Add(choice_osc_l_res, 0, wxALL, 5); // 2, 4, 8......32768
// sizer_12: StaticBox Left Channel (Red)
sizer_12L->Add(sizer_14L, 1, wxEXPAND, 0);
sizer_15L->Add(label_osc_off_l, 0,
wxLEFT | wxRIGHT | wxALIGN_CENTER_HORIZONTAL | wxALIGN_CENTER_VERTICAL,
5); // Offset [V/div]
sizer_15L->Add(5, 5, 1, 0, 0); // spacer
sizer_15L->Add(choice_osc_l_off, 0, wxLEFT | wxRIGHT | wxALIGN_CENTER_VERTICAL,
5); // 100, 80, ... -100
sizer_12L->Add(sizer_15L, 1, wxEXPAND, 0);
sizer_11->Add(button_autocalibrate, 0,
wxLEFT | wxRIGHT | wxALIGN_CENTER_HORIZONTAL | wxALIGN_CENTER_VERTICAL,
5); // autocalibrate
sizer_11->Add(sizer_12L, 0, wxALL | wxEXPAND, 5);
sizer_14R->Add(label_osc_div_r, 0, wxLEFT | wxALIGN_CENTER_HORIZONTAL | wxALIGN_CENTER_VERTICAL,
5); // Res[V/div]
sizer_14R->Add(5, 5, 1, 0, 0); // spacer
sizer_14R->Add(choice_osc_r_res, 0, wxALL, 5); // 2, 4, ... 32768
// sizer_12_copy: StaticBox Right Channel (Green)
sizer_12R->Add(sizer_14R, 1, wxEXPAND, 0);
sizer_15R->Add(label_osc_off_r, 0,
wxLEFT | wxRIGHT | wxALIGN_CENTER_HORIZONTAL | wxALIGN_CENTER_VERTICAL,
5); // Offset [V/div]
sizer_15R->Add(5, 5, 1, 0, 0); // spacer
sizer_15R->Add(choice_osc_r_off, 0, wxLEFT | wxRIGHT | wxALIGN_CENTER_VERTICAL,
5); // 100, 80, ... -100
sizer_12R->Add(sizer_15R, 1, wxEXPAND, 0);
sizer_11->Add(sizer_12R, 0, wxALL | wxEXPAND, 5);
// sizer_13: wxHORIZONTAL
sizer_13->Add(label_osc_time, 0, wxALL | wxALIGN_CENTER_VERTICAL, 5); // X Scale time
sizer_13->Add(5, 5, 1, 0, 0); // spacer
sizer_13->Add(choice_osc_swp, 0, wxALL | wxALIGN_CENTER_VERTICAL, 5); // 20, 50....50000
sizer_12H->Add(sizer_13, 1, wxEXPAND, 0);
sizer_16L->Add(label_8, 0, wxALL | wxALIGN_CENTER_VERTICAL, 5); // Trigger
sizer_16L->Add(5, 5, 1, 0, 0); // spacer
sizer_16L->Add(choice_osc_trig_source, 0, wxALL | wxALIGN_CENTER_VERTICAL,
5); // Off, Left, ... Channel
sizer_12H->Add(sizer_16L, 1, wxEXPAND, 0);
sizer_16R->Add(label_osc_trig, 0, wxALL | wxALIGN_CENTER_VERTICAL, 5); // Trigger Edge
sizer_16R->Add(5, 5, 1, 0, 0); // spacer
sizer_16R->Add(choice_osc_trig_edge, 0, wxALL | wxALIGN_CENTER_VERTICAL,
5); // Rising, ... edge
sizer_12H->Add(sizer_16R, 1, wxEXPAND, 0);
sizer_11->Add(sizer_12H, 1, wxEXPAND, 0);
sizer_10->Add(sizer_11, 0, 0, 0);
sizer_9->Add(sizer_10, 1, wxEXPAND, 0);
sizer_9->Add(button_osc_start, 0, wxALL | wxALIGN_CENTER_HORIZONTAL | wxALIGN_CENTER_VERTICAL, 5);
notebook_1_osc->SetAutoLayout(true);
notebook_1_osc->SetSizer(sizer_9);
sizer_9->Fit(notebook_1_osc);
sizer_9->SetSizeHints(notebook_1_osc);
// analyzer
sizer_spe_10->Add(window_1_spe, 1, wxEXPAND, 0);
wxSize window_1_spe_size = window_1_spe->GetSize();
sizer_spe_10->SetMinSize(4 * window_1_spe_size.GetHeight(), window_1_spe_size.GetHeight());
sizer_spe_window->Add(label_5, 0, wxLEFT | wxALIGN_CENTER_HORIZONTAL | wxALIGN_CENTER_VERTICAL,
5);
sizer_spe_window->Add(5, 5, 1, 0, 0);
sizer_spe_window->Add(choice_fft, 0, wxALL, 5);
sizer_spe_fft->Add(sizer_spe_window, 1, wxEXPAND, 0);
sizer_spe_samples->Add(label_9, 0, wxLEFT | wxALIGN_CENTER_HORIZONTAL | wxALIGN_CENTER_VERTICAL,
5);
sizer_spe_samples->Add(5, 5, 1, 0, 0);
sizer_spe_samples->Add(choice_fftlength, 0, wxALL, 5);
sizer_spe_fft->Add(sizer_spe_samples, 1, wxEXPAND, 0);
sizer_spe_ctrl->Add(sizer_spe_fft, 0, wxALL | wxEXPAND, 5);
sizer_spe_span->Add(label_rx, 0, wxALL | wxALIGN_CENTER_HORIZONTAL | wxALIGN_CENTER_VERTICAL, 5);
sizer_spe_span->Add(5, 5, 1, 0, 0);
sizer_spe_span->Add(choice_fftrx, 0, wxALL, 5);
sizer_spe_disp->Add(sizer_spe_span, 1, wxEXPAND, 0);
sizer_spe_avg->Add(label_avg, 0, wxALL | wxALIGN_CENTER_HORIZONTAL | wxALIGN_CENTER_VERTICAL, 5);
sizer_spe_avg->Add(5, 5, 1, 0, 0);
sizer_spe_avg->Add(choice_fftavg, 0, wxALL, 5);
sizer_spe_disp->Add(sizer_spe_avg, 1, wxEXPAND, 0);
sizer_spe_ctrl->Add(sizer_spe_disp, 0, wxALL | wxEXPAND, 5);
sizer_spe_ref->Add(label_spe_ref, 0, wxALL | wxALIGN_CENTER_HORIZONTAL | wxALIGN_CENTER_VERTICAL,
5);
sizer_spe_ref->Add(5, 5, 1, 0, 0);
sizer_spe_ref->Add(choice_spe_ref, 0, wxALL, 5);
sizer_spe_scale->Add(sizer_spe_ref, 1, wxEXPAND, 0);
sizer_spe_dbdiv->Add(label_spe_dbdiv, 0,
wxALL | wxALIGN_CENTER_HORIZONTAL | wxALIGN_CENTER_VERTICAL, 5);
sizer_spe_dbdiv->Add(5, 5, 1, 0, 0);
sizer_spe_dbdiv->Add(choice_spe_dbdiv, 0, wxALL, 5);
sizer_spe_scale->Add(sizer_spe_dbdiv, 1, wxEXPAND, 0);
sizer_spe_ctrl->Add(sizer_spe_scale, 0, wxALL | wxEXPAND, 5);
sizer_spe_10->Add(sizer_spe_ctrl, 0, wxEXPAND, 0);
sizer_spe_9->Add(sizer_spe_10, 1, wxEXPAND, 0);
sizer_spe_9->Add(button_spe_start, 0, wxALL | wxALIGN_CENTER_HORIZONTAL | wxALIGN_CENTER_VERTICAL,
5);
notebook_1_spe->SetAutoLayout(true);
notebook_1_spe->SetSizer(sizer_spe_9);
sizer_spe_9->Fit(notebook_1_spe);
sizer_spe_9->SetSizeHints(notebook_1_spe);
// frequency response
sizer_17_frm->Add(label_1_frm, 0, wxALL | wxALIGN_CENTER_HORIZONTAL | wxALIGN_CENTER_VERTICAL, 5);
sizer_17_frm->Add(text_ctrl1_frm, 0, wxALL | wxALIGN_CENTER_HORIZONTAL | wxALIGN_CENTER_VERTICAL,
5);
sizer_17_frm->Add(20, 20, 0, 0, 0);
sizer_17_frm->Add(label_2_frm, 0, wxALL | wxALIGN_CENTER_HORIZONTAL | wxALIGN_CENTER_VERTICAL, 5);
sizer_17_frm->Add(text_ctrl2_frm, 0, wxALL | wxALIGN_CENTER_HORIZONTAL | wxALIGN_CENTER_VERTICAL,
5);
sizer_17_frm->Add(20, 20, 0, 0, 0);
sizer_10_frm->Add(sizer_17_frm, 0, wxEXPAND, 0);
sizer_10_frm->Add(window_1_frm, 1, wxEXPAND, 0);
sizer_9_frm->Add(sizer_10_frm, 1, wxEXPAND, 0);
sizer_9_frm->Add(button_frm_start, 0, wxALL | wxALIGN_CENTER_HORIZONTAL | wxALIGN_CENTER_VERTICAL,
5);
notebook_1_frm->SetAutoLayout(true);
notebook_1_frm->SetSizer(sizer_9_frm);
sizer_9_frm->Fit(notebook_1_frm);
sizer_9_frm->SetSizeHints(notebook_1_frm);
// main notebook
notebook_1->AddPage(notebook_1_gen, wxT("Generator"));
notebook_1->AddPage(notebook_1_osc, wxT("Oscilloscope"));
notebook_1->AddPage(notebook_1_spe, wxT("Spectrum Analyzer"));
notebook_1->AddPage(notebook_1_frm, wxT("Frequency Response"));
sizer_notebook->Add(notebook_1, 1, wxEXPAND, 0);
SetAutoLayout(true);
SetSizer(sizer_notebook);
sizer_notebook->Fit(this);
sizer_notebook->SetSizeHints(this);
Layout();
// end wxGlade
}
void MainFrame::setoscbuf() {
m_OscBufferLength = (unsigned long)(2 + sweep_div * 10E-6 * m_SamplingFreq);
}
void MainFrame::set_custom_props() {
#ifdef __WXMSW__
SetIcon(wxICON(AudMeSIcon));
#endif
#ifdef __LINUX__
#include "audmes.xpm"
SetIcon(wxICON(audmes));
#endif
m_PlayDev = 0;
m_RecordDev = 0;
m_SamplingFreq = 44100;
choice_osc_l_res->SetSelection(0);
choice_osc_r_res->SetSelection(0);
choice_osc_l_off->SetSelection(5);
choice_osc_r_off->SetSelection(5);
sweep_div = wxAtoi(choice_osc_swp->GetString(choice_osc_swp->GetSelection()));
setoscbuf();
/* oscilloscope */
window_osc->SetXRange(0, sweep_div * 10E-6, 0);
window_osc->SetYRange(-1, 1, 0);
window_osc->SetNumOfVerticals(10);
/* analyzer */
window_1_spe->SetXRange(10, 100000, 1);
window_1_spe->SetYRange(-100, 0, 0);
/* freq response */
window_1_frm->SetXRange(20, 20000, 1);
window_1_frm->SetYRange(-80, 0, 0);
frm_running = 0;
frm_measure = 0;
frm_istep = 0;
m_configfilename = wxT("");
m_timer = new wxTimer(this, ID_TIMERID);
m_timer->Start(100);
m_SpeBufferLength = wxAtoi(choice_fftlength->GetString(choice_fftlength->GetSelection()));
m_RWAudio = new RWAudio();
m_SMASpeLeft = new SMA_2D(m_SpeBufferLength >> 1, 1);
m_SMASpeRight = new SMA_2D(m_SpeBufferLength >> 1, 1);
int ret = 0;
ret = m_RWAudio->InitSnd((long int)(2.0 * m_OscBufferLength), m_SpeBufferLength, m_rtinfo,
m_SamplingFreq);
if (ret)
wxMessageBox(_T("Sound card issue:\n\nPlease check\nTools -> Audio interface Configuration\n"),
_T("Alert"), wxICON_INFORMATION | wxOK);
}
void MainFrame::OnAboutClick(wxCommandEvent& WXUNUSED(event)) {
wxString s;
s << wxT("AUDio MEasurement System - version ") << AUDMES_VERSION_STRING
<< wxT("\nVaclav Peroutka - [email protected]\n\n")
<< wxT("Project page: https://sourceforge.net/projects/audmes/\n\n") << m_rtinfo;
wxMessageBox(s, _T("About application"), wxICON_INFORMATION | wxOK);
}
void MainFrame::OnExitClick(wxCommandEvent& WXUNUSED(event)) { Close(); }
void MainFrame::OnClose(wxCloseEvent& WXUNUSED(event)) {
m_timer->Stop();
Destroy();
}
void MainFrame::OnOpenClick(wxCommandEvent& WXUNUSED(event)) {
wxMessageBox(wxT("Not yet implemented"), _T("About application"), wxICON_INFORMATION | wxOK);
}
void MainFrame::OnSaveClick(wxCommandEvent& WXUNUSED(event)) {
wxMessageBox(wxT("Not yet implemented"), _T("About application"), wxICON_INFORMATION | wxOK);
}
void MainFrame::OnSaveAsClick(wxCommandEvent& WXUNUSED(event)) {
wxMessageBox(wxT("Not yet implemented"), _T("About application"), wxICON_INFORMATION | wxOK);
}
void MainFrame::OnSaveFRM(wxCommandEvent& WXUNUSED(event)) {
wxFileDialog saveFileDialog(this, _("Save frequency response file"), "", "",
"CSV files (*.csv)|*.csv", wxFD_SAVE | wxFD_OVERWRITE_PROMPT);
if (saveFileDialog.ShowModal() == wxID_CANCEL) return;
std::ofstream frm;
frm.open(saveFileDialog.GetPath().mb_str(), std::ios::trunc);
if (!frm.is_open()) {
wxLogError("Cannot save current contents in file '%s'.", saveFileDialog.GetPath());
return;
}
frm << "Hz"
<< ","
<< "GainL"
<< ","
<< "GainR" << std::endl;
for (unsigned int i = 0; i < frm_freqs.GetCount(); i++) {
frm << frm_freqs[i] << "," << frm_lgains[i] << "," << frm_rgains[i] << std::endl;
}
frm.close();
}
void MainFrame::OnSaveSPE(wxCommandEvent& WXUNUSED(event)) {
wxFileDialog saveFileDialog(this, _("Save frequency spectrum file"), "", "",
"CSV files (*.csv)|*.csv", wxFD_SAVE | wxFD_OVERWRITE_PROMPT);
if (saveFileDialog.ShowModal() == wxID_CANCEL) return;
std::ofstream spe;
spe.open(saveFileDialog.GetPath().mb_str(), std::ios::trunc);
if (!spe.is_open()) {
wxLogError("Cannot save current contents in file '%s'.", saveFileDialog.GetPath());
return;
}
spe << "Hz"
<< ","
<< "MagL"
<< ","
<< "MagR" << std::endl;
for (unsigned int i = 0; i < spe_freqs.GetCount(); i++) {
spe << spe_freqs[i] << "," << spe_lmagns[i] << "," << spe_rmagns[i] << std::endl;
}
spe.close();
}
void MainFrame::OnSaveOSC(wxCommandEvent& WXUNUSED(event)) {
wxFileDialog saveFileDialog(this, _("Save oscillogram file"), "", "", "CSV files (*.csv)|*.csv",
wxFD_SAVE | wxFD_OVERWRITE_PROMPT);
if (saveFileDialog.ShowModal() == wxID_CANCEL) return;
std::ofstream osc;
osc.open(saveFileDialog.GetPath().mb_str(), std::ios::trunc);
if (!osc.is_open()) {
wxLogError("Cannot save current contents in file '%s'.", saveFileDialog.GetPath());
return;
}
osc << "time"
<< ","
<< "MagL"
<< ","
<< "MagR" << std::endl;
for (unsigned int i = 0; i < osc_times.GetCount(); i++) {
osc << osc_times[i] << "," << osc_lmagns[i] << "," << osc_rmagns[i] << std::endl;
}
osc.close();
}
void MainFrame::OnLoadFRM(wxCommandEvent& WXUNUSED(event)) {
if (0 /* ...current content has not been saved... */) {
if (wxMessageBox(_("Current content has not been saved! Proceed?"), _("Please confirm"),
wxICON_QUESTION | wxYES_NO, this) == wxNO)
return;
}
wxFileDialog openFileDialog(this, _("Open frequency response file"), "", "",
"CSV files (*.csv)|*.csv", wxFD_OPEN | wxFD_FILE_MUST_EXIST);
if (openFileDialog.ShowModal() == wxID_CANCEL) return;
io::CSVReader<3> in(openFileDialog.GetPath());
in.read_header(io::ignore_extra_column, "Hz", "GainL", "GainR");
frm_freqs.Clear();
frm_lgains.Clear();
frm_rgains.Clear();
double hz;
double gainl, gainr;
while (in.read_row(hz, gainl, gainr)) {
frm_freqs.Add(hz);
frm_lgains.Add(gainl);
frm_rgains.Add(gainr);
}
DrawFreqResponse();
Refresh();
}
void MainFrame::OnAutoCalClick(wxCommandEvent& WXUNUSED(event)) {
if (button_osc_start->GetValue()) {
float minValueL = 1;
float maxValueL = -1;
float minValueR = 1;
float maxValueR = -1;
for (unsigned long int i = 0; i < m_OscBufferLength; i++) {
if (minValueL > g_OscBuffer_Left[i]) minValueL = g_OscBuffer_Left[i];
if (maxValueL < g_OscBuffer_Left[i]) maxValueL = g_OscBuffer_Left[i];
if (minValueR > g_OscBuffer_Right[i]) minValueR = g_OscBuffer_Right[i];
if (maxValueR < g_OscBuffer_Right[i]) maxValueR = g_OscBuffer_Right[i];
}
auto diff = 1 / (maxValueL - minValueL);
auto lgdiff = log(diff) / log(2);
if (lgdiff > 13) lgdiff = 13;
choice_osc_l_res->SetSelection((int)lgdiff);
diff = 1 / (maxValueR - minValueR);
lgdiff = log(diff) / log(2);
if (lgdiff > 13) lgdiff = 13;
choice_osc_r_res->SetSelection((int)lgdiff);
} else {
wxMessageBox(wxT("Please start recording"), _T("Could not auto calibrate"),
wxICON_INFORMATION | wxOK);
}
}
static const int frm_low = 20;
void MainFrame::CalcFreqResponse() {
/* periodically called by OnTimer
* delays for measuring work by waiting for the next call
*/
if (frm_istep <= (int)frm_ipoints) {
float freq = frm_low * pow(10.0, 3.0 * frm_istep / frm_ipoints);
if (0 == frm_measure) {
// play new frequency e.g. from 20Hz to 20kHz
m_RWAudio->PlaySetGenerator(freq, freq, 0, 0, pow(10, slide_l_am->GetValue() / 20.0),
pow(10, slide_r_am->GetValue() / 20.0));
wxString bla;
bla.Printf(wxT("Frequency : %.1f "), freq);
window_1_frm->ShowUserText(bla, 100, 20);
}
if (1 == frm_measure) g_SpeBufferChanged = false; // now get audio data
if (g_SpeBufferChanged.load() && frm_measure > 1) {
// new audio data has arrived
double l_rms = 0;
double r_rms = 0;
// compute RMS value in the grabbed wave and store it as a result
for (unsigned long int ii = 0; ii < m_SpeBufferLength; ii++) {
l_rms += g_SpeBuffer_Left[ii] * g_SpeBuffer_Left[ii];
r_rms += g_SpeBuffer_Right[ii] * g_SpeBuffer_Right[ii];
}
frm_freqs.Add(freq);
frm_lgains.Add(sqrt(l_rms / m_SpeBufferLength));
frm_rgains.Add(sqrt(r_rms / m_SpeBufferLength));
frm_measure = -1; // zero after increment
frm_istep++;
}
frm_measure++;
} else {
frm_running = false;
window_1_frm->ShowUserText(wxString(""), 0, 0);
button_frm_start->SetValue(false);
button_frm_start->SetLabel(_T("Start"));
SendGenSettings(); // stop generator
}
}
void MainFrame::DrawFreqResponse(void) {
wxArrayDouble left, right;
double tmpval;
left.Clear();
right.Clear();
for (unsigned int i = 0; i < frm_freqs.size(); i++) {
tmpval = frm_lgains[i];
left.Add(20.0 * log10(tmpval));
tmpval = frm_rgains[i];
right.Add(20.0 * log10(tmpval));
}
window_1_frm->SetTrack1(left);
window_1_frm->SetTrack2(right);
window_1_frm->SetTrackX(frm_freqs);
}
void MainFrame::DrawOscilloscope(void) {
osc_lmagns.Clear();
osc_rmagns.Clear();
osc_times.Clear();
double trigger_edge;
double trigger_level = 0.0;
unsigned long int xtrig = 0; // point where the trigger occures
const double range[] = {1, 2, 5, 10, 20, 50, 100, 200, 500, 1000, 2000, 5000, 10000, 20000};
double range_div = 1 / range[choice_osc_l_res->GetSelection()];
double shft_val = 20.0 * (choice_osc_l_off->GetSelection() - 5) / 100.0;
double range_div2 = 1 / range[choice_osc_r_res->GetSelection()];
double shft_val2 = 20.0 * (choice_osc_r_off->GetSelection() - 5) / 100.0;
double hysteresis_level = range_div / 20.0;
// triggering - re-done a little bit, more or less ...
trigger_edge = (0 == choice_osc_trig_edge->GetSelection()) ? 1.0 : -1.0;
switch (choice_osc_trig_source->GetSelection()) {
case 1:
// left channel - look for the value under hysteresis point and then over 0
while (xtrig < m_OscBufferLength) {
if ((trigger_level - hysteresis_level) > (trigger_edge * g_OscBuffer_Left[xtrig])) {
break;
}
xtrig++;
}
while (xtrig < m_OscBufferLength) {
if (trigger_level < (trigger_edge * g_OscBuffer_Left[xtrig])) {
break;
}
xtrig++;
}
break;
case 2:
// right channel
while (xtrig < m_OscBufferLength) {
if ((trigger_level - hysteresis_level) > (trigger_edge * g_OscBuffer_Right[xtrig])) {
break;
}
xtrig++;
}
while (xtrig < m_OscBufferLength) {
if (trigger_level < (trigger_edge * g_OscBuffer_Right[xtrig])) {
break;
}
xtrig++;
}
break;
default:
// no trigger
break;
}
if (xtrig < m_OscBufferLength) {
unsigned long int finalBufferPoint =
xtrig + m_OscBufferLength; // wrapped exactly for the OScopeCtrl X range
if (finalBufferPoint > 2.0 * m_OscBufferLength) {
finalBufferPoint = (unsigned long)(2.0 * m_OscBufferLength);
}
for (int i = 0; i + xtrig < finalBufferPoint; i++) {
osc_lmagns.Add(g_OscBuffer_Left[i + xtrig] / range_div - shft_val);
osc_rmagns.Add(g_OscBuffer_Right[i + xtrig] / range_div2 - shft_val2);
osc_times.Add((double)i / m_SamplingFreq);
}
}
window_osc->SetTrack1(osc_lmagns);
window_osc->SetTrack2(osc_rmagns);
window_osc->SetTrackX(osc_times);
}
double MainFrame::calc_dc(const float* data, int size) {
double dc = 0.0;
for (int i = 0; i < size; i++) {
dc += data[i];
}
return dc / size;
}
void MainFrame::DrawSpectrum(void) {
double *realin, *realout, *imagout, *windowf;
int nsampl = m_SpeBufferLength;
realin = (double*)malloc(nsampl * sizeof(double));
realout = (double*)malloc(nsampl * sizeof(double));
imagout = (double*)malloc(nsampl * sizeof(double));
windowf = (double*)malloc(nsampl * sizeof(double));
spe_freqs.Clear();
spe_lmagns.Clear();
spe_rmagns.Clear();
// calculate window
const double multiplier = 2 * M_PI / nsampl;
switch (choice_fft->GetSelection()) {
case 1: // Hanning
for (int i = 0; i < nsampl; i++) {
windowf[i] = 2 * (0.5 + -0.5 * cos(i * multiplier)) / (double)nsampl;
}
break;
case 2: // Blackman
for (int i = 0; i < nsampl; i++) {
windowf[i] = 2.4 * (0.42 - 0.5 * cos(multiplier * i) + 0.08 * cos(2 * multiplier * i)) /
(double)nsampl;
}
break;
case 3: // Blackman Harris minimum 4 term
for (int i = 0; i < nsampl; i++) {
windowf[i] = 2.63 *
(0.35875 + -0.48829 * cos(i * multiplier) + 0.14128 * cos(i * multiplier * 2) +
-0.01168 * cos(i * multiplier * 3)) /
(double)nsampl;
}
break;
default: // Rectangle
for (int i = 0; i < nsampl; i++) {
windowf[i] = 1.0 / (double)nsampl;
}
break;
}
double dval = 0.0;
double dmax = 0.0;
double dval_db = 0.0;
// left channel
double offsetL = calc_dc(g_SpeBuffer_Left, nsampl);
for (int i = 0; i < nsampl; i++) {
// copy and apply window
realin[i] = (g_SpeBuffer_Left[i] - offsetL) * windowf[i];
}
if (fft_double(nsampl, 0, realin, NULL, realout, imagout)) {
// use only up to nsampl/2 and skip DC
for (int i = 1; i < nsampl / 2; i++) {
// multiply amplitude by 2 to compensate
dval = 2 * sqrt(realout[i] * realout[i] + imagout[i] * imagout[i]);
m_SMASpeLeft->AddVal(i, dval);
dval_db = 20.0 * log10(m_SMASpeLeft->GetSMA(i));
spe_lmagns.Add(dval_db);
}
} else {
/* wrong computation */
for (int i = 0; i < nsampl / 2; i++) {
spe_lmagns.Add(-150);
}
}
/* find frequency index with highest amplitude */
int fmax = 0;
for (int i = 0; i < nsampl / 2; i++) {
if (m_SMASpeLeft->GetSMA(i) > dmax) {
dmax = m_SMASpeLeft->GetSMA(i);
fmax = i;
}
}
/* use that frequency as base and calculate distortion
* but only if the magnitude is above -90 db
*/
double freq = 0.0;
double thd = 0.0;
double thdval[10] = {1.0E-6};
if (fmax > 0 && dmax > 0.00003) {
freq = (double)fmax * m_SamplingFreq / nsampl;
for (int i = 0; i < 10; i++) {
int j = fmax * (i + 1);
if (j < nsampl / 2)
thdval[i] = m_SMASpeLeft->GetSMA(j);
else
thdval[i] = 0.0;
}
thd = 100 *
(thdval[1] + thdval[2] + thdval[3] + thdval[4] + thdval[5] + thdval[6] + thdval[7] +
thdval[8] + thdval[9]) /
thdval[0];
}
/* display base frequency, magnitude and distortion */
wxString freqency;
freqency.Printf(wxT("Frequency : %.1lf Hz, Magnitude: %.1lf dB, THD : %lf%%, Avg: %d/%d"), freq,
20.0 * log10(thdval[0]), thd, m_SMASpeLeft->GetNumSummed(1),
m_SMASpeLeft->GetNumAverage());
frame_1_statusbar->SetStatusText(freqency);
// right channel
double offsetR = calc_dc(g_SpeBuffer_Right, nsampl);
for (int i = 0; i < nsampl; i++) {
// copy and apply window
realin[i] = (g_SpeBuffer_Right[i] - offsetR) * windowf[i];
}
if (fft_double(nsampl, 0, realin, NULL, realout, imagout)) {
// use only up to nsampl/2 and skip DC
for (int i = 1; i < nsampl / 2; i++) {
dval = 2 * sqrt(realout[i] * realout[i] + imagout[i] * imagout[i]);