first commit

.gitignore

@@ -0,0 +1,4 @@
+.vs/
+x64/
+*.wav
+*.vcxproj.user

synthetizer.cpp

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+#include <iostream>
+#include <fstream>
+#include <cmath>
+#include <vector>
+#include <sstream>
+#include <string>
+
+const int SAMPLE_RATE = 44100;
+const double TWO_PI = 6.283185307179586476925286766559;
+
+// Enum for waveform types
+enum Waveform {
+    SINE,
+    TRIANGLE,
+    SAWTOOTH,
+    SQUARE
+};
+
+// Structure to hold the waveform parameters
+struct Wave {
+    Waveform type;
+    int start_ms;
+    int duration_ms;
+    int frequency;
+    double volume;  // New field for volume control (0.0 to 1.0)
+};
+
+// Read the parameters from the text file
+bool loadWaveParams(const std::string& filename, std::vector<Wave>& waves, int& totalDuration) {
+    std::ifstream file(filename);
+    if (!file.is_open()) {
+        std::cerr << "Error opening file!" << std::endl;
+        return false;
+    }
+
+    std::string line;
+    while (std::getline(file, line)) {
+        if (line.find("TOTAL_DURATION") != std::string::npos) {
+            size_t startPos = line.find("(") + 1;
+            size_t endPos = line.find(")");
+            totalDuration = std::stoi(line.substr(startPos, endPos - startPos));
+        }
+        else if (line.find("SINE") != std::string::npos || line.find("SAWTOOTH") != std::string::npos ||
+            line.find("SQUARE") != std::string::npos || line.find("TRIANGLE") != std::string::npos) {
+            std::istringstream ss(line);
+            std::string waveType;
+            int start_ms, duration_ms, frequency;
+            double volume;
+            ss >> waveType >> start_ms >> duration_ms >> frequency >> volume;
+
+            Wave wave;
+            wave.start_ms = start_ms;
+            wave.duration_ms = duration_ms;
+            wave.frequency = frequency;
+            wave.volume = volume;
+
+            if (waveType == "SINE") {
+                wave.type = SINE;
+            }
+            else if (waveType == "SAWTOOTH") {
+                wave.type = SAWTOOTH;
+            }
+            else if (waveType == "SQUARE") {
+                wave.type = SQUARE;
+            }
+            else if (waveType == "TRIANGLE") {
+                wave.type = TRIANGLE;
+            }
+
+            waves.push_back(wave);
+        }
+    }
+
+    return true;
+}
+
+// Waveform generation functions
+double sineWave(double frequency, double time) {
+    return std::sin(TWO_PI * frequency * time);
+}
+
+double triangleWave(double frequency, double time) {
+    double period = 1.0 / frequency;
+    double phase = fmod(time, period) / period;  // Normalized phase (0 to 1)
+    if (phase < 0.5) {
+        return 4 * phase - 1;  // Rising part of the triangle
+    }
+    else {
+        return 3 - 4 * phase;  // Falling part of the triangle
+    }
+}
+
+double sawtoothWave(double frequency, double time) {
+    double period = 1.0 / frequency;
+    double phase = fmod(time, period) / period;  // Normalized phase (0 to 1)
+    return 2 * phase - 1;  // Ramp from -1 to 1
+}
+
+double squareWave(double frequency, double time) {
+    double period = 1.0 / frequency;
+    double phase = fmod(time, period) / period;  // Normalized phase (0 to 1)
+    return phase < 0.5 ? 1.0 : -1.0;  // 1 for the first half, -1 for the second half
+}
+
+// Mix the waveforms with volume control
+double generateWave(Waveform waveform, double frequency, double time) {
+    switch (waveform) {
+    case SINE:
+        return sineWave(frequency, time);
+    case TRIANGLE:
+        return triangleWave(frequency, time);
+    case SAWTOOTH:
+        return sawtoothWave(frequency, time);
+    case SQUARE:
+        return squareWave(frequency, time);
+    default:
+        return sineWave(frequency, time);  // Default to sine wave
+    }
+}
+
+std::vector<int16_t> generateAudio(const std::vector<Wave>& waves, int totalDuration) {
+    std::vector<int16_t> samples(SAMPLE_RATE * totalDuration / 1000, 0); // Initialize with zeros
+
+    // Process each wave
+    for (const auto& wave : waves) {
+        int startSample = wave.start_ms * SAMPLE_RATE / 1000;
+        int endSample = (wave.start_ms + wave.duration_ms) * SAMPLE_RATE / 1000;
+
+        // Generate the waveform for the specified duration
+        for (int t = startSample; t < endSample; ++t) {
+            double time = static_cast<double>(t) / SAMPLE_RATE;
+            double sample = generateWave(wave.type, wave.frequency, time);
+            sample *= wave.volume;  // Apply the volume to the waveform
+
+            samples[t] += static_cast<int16_t>(sample * 32767);  // Linear mixing
+        }
+    }
+
+    return samples;
+}
+
+// Write WAV file
+void writeWav(const std::string& filename, const std::vector<int16_t>& samples) {
+    std::ofstream file(filename, std::ios::binary);
+
+    // WAV Header
+    struct WAVHeader {
+        char riff[4]; // "RIFF"
+        uint32_t fileSize;
+        char wave[4]; // "WAVE"
+        char fmt[4];  // "fmt "
+        uint32_t fmtSize;
+        uint16_t audioFormat;
+        uint16_t numChannels;
+        uint32_t sampleRate;
+        uint32_t byteRate;
+        uint16_t blockAlign;
+        uint16_t bitsPerSample;
+        char data[4]; // "data"
+        uint32_t dataSize;
+    };
+
+    WAVHeader header;
+    memcpy(header.riff, "RIFF", 4);
+    header.fileSize = 36 + samples.size() * sizeof(int16_t);
+    memcpy(header.wave, "WAVE", 4);
+    memcpy(header.fmt, "fmt ", 4);
+    header.fmtSize = 16;
+    header.audioFormat = 1;  // PCM
+    header.numChannels = 1;  // Mono
+    header.sampleRate = SAMPLE_RATE;
+    header.byteRate = SAMPLE_RATE * sizeof(int16_t);
+    header.blockAlign = sizeof(int16_t);
+    header.bitsPerSample = 16;
+    memcpy(header.data, "data", 4);
+    header.dataSize = samples.size() * sizeof(int16_t);
+
+    file.write(reinterpret_cast<char*>(&header), sizeof(header));
+    file.write(reinterpret_cast<const char*>(samples.data()), samples.size() * sizeof(int16_t));
+}
+
+int main() {
+    std::vector<Wave> waves;
+    int totalDuration = 0;
+
+    // Load the wave parameters from a text file
+    if (!loadWaveParams("waves.txt", waves, totalDuration)) {
+        std::cerr << "Failed to load wave parameters!" << std::endl;
+        return 1;
+    }
+
+    // Generate the audio by mixing the waveforms
+    std::vector<int16_t> samples = generateAudio(waves, totalDuration);
+
+    // Write the audio to a WAV file
+    writeWav("output_mixed_with_volume.wav", samples);
+
+    std::cout << "WAV file generated: output_mixed_with_volume.wav" << std::endl;
+    return 0;
+}

synthetizer.sln

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+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.13.35825.156 d17.13
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "synthetizer", "synthetizer.vcxproj", "{E3DCEF34-0A95-49D2-84D9-5FB1BE6F75F1}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|x64 = Debug|x64
+		Debug|x86 = Debug|x86
+		Release|x64 = Release|x64
+		Release|x86 = Release|x86
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{E3DCEF34-0A95-49D2-84D9-5FB1BE6F75F1}.Debug|x64.ActiveCfg = Debug|x64
+		{E3DCEF34-0A95-49D2-84D9-5FB1BE6F75F1}.Debug|x64.Build.0 = Debug|x64
+		{E3DCEF34-0A95-49D2-84D9-5FB1BE6F75F1}.Debug|x86.ActiveCfg = Debug|Win32
+		{E3DCEF34-0A95-49D2-84D9-5FB1BE6F75F1}.Debug|x86.Build.0 = Debug|Win32
+		{E3DCEF34-0A95-49D2-84D9-5FB1BE6F75F1}.Release|x64.ActiveCfg = Release|x64
+		{E3DCEF34-0A95-49D2-84D9-5FB1BE6F75F1}.Release|x64.Build.0 = Release|x64
+		{E3DCEF34-0A95-49D2-84D9-5FB1BE6F75F1}.Release|x86.ActiveCfg = Release|Win32
+		{E3DCEF34-0A95-49D2-84D9-5FB1BE6F75F1}.Release|x86.Build.0 = Release|Win32
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {925453FC-5350-4A69-AE70-D2A160CB7CA2}
+	EndGlobalSection
+EndGlobal

synthetizer.vcxproj

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+<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup Label="ProjectConfigurations">
+    <ProjectConfiguration Include="Debug|Win32">
+      <Configuration>Debug</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|Win32">
+      <Configuration>Release</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Debug|x64">
+      <Configuration>Debug</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|x64">
+      <Configuration>Release</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+  </ItemGroup>
+  <PropertyGroup Label="Globals">
+    <VCProjectVersion>17.0</VCProjectVersion>
+    <Keyword>Win32Proj</Keyword>
+    <ProjectGuid>{e3dcef34-0a95-49d2-84d9-5fb1be6f75f1}</ProjectGuid>
+    <RootNamespace>synthetizer</RootNamespace>
+    <WindowsTargetPlatformVersion>10.0</WindowsTargetPlatformVersion>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseDebugLibraries>true</UseDebugLibraries>
+    <PlatformToolset>v143</PlatformToolset>
+    <CharacterSet>Unicode</CharacterSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseDebugLibraries>false</UseDebugLibraries>
+    <PlatformToolset>v143</PlatformToolset>
+    <WholeProgramOptimization>true</WholeProgramOptimization>
+    <CharacterSet>Unicode</CharacterSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseDebugLibraries>true</UseDebugLibraries>
+    <PlatformToolset>v143</PlatformToolset>
+    <CharacterSet>Unicode</CharacterSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseDebugLibraries>false</UseDebugLibraries>
+    <PlatformToolset>v143</PlatformToolset>
+    <WholeProgramOptimization>true</WholeProgramOptimization>
+    <CharacterSet>Unicode</CharacterSet>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
+  <ImportGroup Label="ExtensionSettings">
+  </ImportGroup>
+  <ImportGroup Label="Shared">
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <PropertyGroup Label="UserMacros" />
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+    <ClCompile>
+      <WarningLevel>Level3</WarningLevel>
+      <SDLCheck>true</SDLCheck>
+      <PreprocessorDefinitions>WIN32;_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <ConformanceMode>true</ConformanceMode>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <ClCompile>
+      <WarningLevel>Level3</WarningLevel>
+      <FunctionLevelLinking>true</FunctionLevelLinking>
+      <IntrinsicFunctions>true</IntrinsicFunctions>
+      <SDLCheck>true</SDLCheck>
+      <PreprocessorDefinitions>WIN32;NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <ConformanceMode>true</ConformanceMode>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <EnableCOMDATFolding>true</EnableCOMDATFolding>
+      <OptimizeReferences>true</OptimizeReferences>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
+    <ClCompile>
+      <WarningLevel>Level3</WarningLevel>
+      <SDLCheck>true</SDLCheck>
+      <PreprocessorDefinitions>_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <ConformanceMode>true</ConformanceMode>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
+    <ClCompile>
+      <WarningLevel>Level3</WarningLevel>
+      <FunctionLevelLinking>true</FunctionLevelLinking>
+      <IntrinsicFunctions>true</IntrinsicFunctions>
+      <SDLCheck>true</SDLCheck>
+      <PreprocessorDefinitions>NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <ConformanceMode>true</ConformanceMode>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <EnableCOMDATFolding>true</EnableCOMDATFolding>
+      <OptimizeReferences>true</OptimizeReferences>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemGroup>
+    <ClCompile Include="synthetizer.cpp" />
+  </ItemGroup>
+  <ItemGroup>
+    <Text Include="waves.txt" />
+  </ItemGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+  <ImportGroup Label="ExtensionTargets">
+  </ImportGroup>
+</Project>

synthetizer.vcxproj.filters

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+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup>
+    <Filter Include="Pliki źródłowe">
+      <UniqueIdentifier>{4FC737F1-C7A5-4376-A066-2A32D752A2FF}</UniqueIdentifier>
+      <Extensions>cpp;c;cc;cxx;c++;cppm;ixx;def;odl;idl;hpj;bat;asm;asmx</Extensions>
+    </Filter>
+    <Filter Include="Pliki nagłówkowe">
+      <UniqueIdentifier>{93995380-89BD-4b04-88EB-625FBE52EBFB}</UniqueIdentifier>
+      <Extensions>h;hh;hpp;hxx;h++;hm;inl;inc;ipp;xsd</Extensions>
+    </Filter>
+    <Filter Include="Pliki zasobów">
+      <UniqueIdentifier>{67DA6AB6-F800-4c08-8B7A-83BB121AAD01}</UniqueIdentifier>
+      <Extensions>rc;ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe;resx;tiff;tif;png;wav;mfcribbon-ms</Extensions>
+    </Filter>
+  </ItemGroup>
+  <ItemGroup>
+    <ClCompile Include="synthetizer.cpp">
+      <Filter>Pliki źródłowe</Filter>
+    </ClCompile>
+  </ItemGroup>
+  <ItemGroup>
+    <Text Include="waves.txt" />
+  </ItemGroup>
+</Project>

waves.txt

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+TOTAL_DURATION(5000)  // Total duration in milliseconds
+SINE 0 1000 440 1.0      // Sine wave starts at 0 ms, lasts for 1000 ms, frequency 440 Hz, full volume
+SQUARE 0 1000 440 0.5    // Square wave starts at 0 ms, lasts for 1000 ms, frequency 440 Hz, 50% volume