- std::cout << "Usage: " << path << " <main audio file> <second audio file>" << std::endl
- << "\t-h, --help\tDisplay this help" << std::endl
- << "\t--profile=<profile>\tUse the given profile for calculation (run: melt -query profiles)" << std::endl
- << "\t--no-images\tDo not save envelope and correlation images" << std::endl
+ std::cout << "This executable takes two audio/video files A and B and determines " << std::endl
+ << "how much B needs to be shifted in order to be synchronized with A." << std::endl << std::endl
+ << path << " <main audio file> <second audio file>" << std::endl
+ << "\t-h, --help\n\t\tDisplay this help" << std::endl
+ << "\t--fft\n\t\tUse Fourier Transform (FFT) to calculate the offset. This only takes" << std::endl
+ << "\t\tO(n log n) time compared to O(n²) when using normal correlation and should be " << std::endl
+ << "\t\tfaster for large data (several minutes)." << std::endl
+ << "\t--profile=<profile>\n\t\tUse the given profile for calculation (run: melt -query profiles)" << std::endl
+ << "\t--no-images\n\t\tDo not save envelope and correlation images" << std::endl