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std::cout << "WASAPI Audio Recorder for Windows 10\n"; std::cout << "====================================\n"; std::cout << "1. Capture system audio (what you hear)\n"; std::cout << "2. Capture microphone input\n"; std::cout << "Choose mode (1 or 2): ";

// fmt subchunk outputFile.write("fmt ", 4); int fmtSize = 16; outputFile.write(reinterpret_cast<char*>(&fmtSize), 4); short audioFormat = 1; // PCM outputFile.write(reinterpret_cast<char*>(&audioFormat), 2); outputFile.write(reinterpret_cast<char*>(&channels), 2); outputFile.write(reinterpret_cast<char*>(&sampleRate), 4); int byteRate = sampleRate * channels * (bitsPerSample / 8); outputFile.write(reinterpret_cast<char*>(&byteRate), 4); short blockAlign = channels * (bitsPerSample / 8); outputFile.write(reinterpret_cast<char*>(&blockAlign), 2); outputFile.write(reinterpret_cast<char*>(&bitsPerSample), 2); // data subchunk outputFile.write("data", 4); outputFile.write(reinterpret_cast<char*>(&dataSize), 4);

public: bool Initialize(bool captureLoopback = true) = AUDCLNT_STREAMFLAGS_EVENTCALLBACK; hr = pAudioClient->Initialize( AUDCLNT_SHAREMODE_SHARED, streamFlags, hnsRequestedDuration, 0, pwfx, NULL ); if (FAILED(hr)) return false; // Get buffer size hr = pAudioClient->GetBufferSize(&bufferFrameCount); if (FAILED(hr)) return false; // Create event handle hEvent = CreateEvent(NULL, FALSE, FALSE, NULL); if (hEvent == NULL) return false; hr = pAudioClient->SetEventHandle(hEvent); if (FAILED(hr)) return false; // Get capture client hr = pAudioClient->GetService(__uuidof(IAudioCaptureClient), (void**)&pCaptureClient); if (FAILED(hr)) return false; return true; wasapi download windows 10

return 0; cmake_minimum_required(VERSION 3.10) project(WASAPIRecorder) set(CMAKE_CXX_STANDARD 17)

find_library(ole32_lib ole32) find_library(avrt_lib avrt) std::cout &lt;&lt; "WASAPI Audio Recorder for Windows 10\n";

if (recorder.Initialize(loopback)) recorder.StartRecording("recording.wav"); recorder.Cleanup(); std::cout << "Recording saved as recording.wav\n"; else std::cout << "Failed to initialize WASAPI recording\n"; return 1;

void Cleanup() if (pCaptureClient) pCaptureClient->Release(); if (pAudioClient) pAudioClient->Release(); if (pDevice) pDevice->Release(); if (pEnumerator) pEnumerator->Release(); if (pwfx) CoTaskMemFree(pwfx); if (hEvent) CloseHandle(hEvent); CoUninitialize(); "WASAPI Audio Recorder for Windows 10\n"

void UpdateWAVHeader(const char* filename, UINT32 dataSize) std::ios::out); if (file.is_open()) // Update chunk size file.seekp(4); UINT32 chunkSize = dataSize + 36; file.write(reinterpret_cast<char*>(&chunkSize), 4); // Update data size file.seekp(40); file.write(reinterpret_cast<char*>(&dataSize), 4); file.close();